CA3119923A1 - Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines - Google Patents
Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines Download PDFInfo
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- CA3119923A1 CA3119923A1 CA3119923A CA3119923A CA3119923A1 CA 3119923 A1 CA3119923 A1 CA 3119923A1 CA 3119923 A CA3119923 A CA 3119923A CA 3119923 A CA3119923 A CA 3119923A CA 3119923 A1 CA3119923 A1 CA 3119923A1
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- 239000000203 mixture Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims description 17
- 238000002485 combustion reaction Methods 0.000 title description 39
- 239000000654 additive Substances 0.000 claims abstract description 116
- 239000000446 fuel Substances 0.000 claims abstract description 106
- 230000000996 additive effect Effects 0.000 claims abstract description 66
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 30
- 239000001257 hydrogen Substances 0.000 claims abstract description 29
- 125000003118 aryl group Chemical group 0.000 claims abstract description 24
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 19
- 238000009835 boiling Methods 0.000 claims abstract description 16
- 239000003502 gasoline Substances 0.000 claims abstract description 15
- 150000001409 amidines Chemical class 0.000 claims abstract description 14
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 13
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 11
- -1 (heptan-2-ylamino)propane-1,2-diol Chemical group 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 16
- 239000012141 concentrate Substances 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 150000002431 hydrogen Chemical class 0.000 claims description 14
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- OQACUBSYKYLDMU-UHFFFAOYSA-N 10-aminodecane-3,3-diol Chemical compound NCCCCCCCC(CC)(O)O OQACUBSYKYLDMU-UHFFFAOYSA-N 0.000 claims description 9
- 150000001414 amino alcohols Chemical class 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 125000003342 alkenyl group Chemical group 0.000 claims description 8
- 229960001860 salicylate Drugs 0.000 claims description 8
- 150000003852 triazoles Chemical class 0.000 claims description 8
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- NBYLBWHHTUWMER-UHFFFAOYSA-N 2-Methylquinolin-8-ol Chemical group C1=CC=C(O)C2=NC(C)=CC=C21 NBYLBWHHTUWMER-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- 125000004989 dicarbonyl group Chemical group 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- TUWDAYGSSHTMAQ-UHFFFAOYSA-N 11-aminoundecane-3,3-diol Chemical compound NCCCCCCCCC(CC)(O)O TUWDAYGSSHTMAQ-UHFFFAOYSA-N 0.000 claims 3
- OPNSQWVUZYGGKJ-UHFFFAOYSA-N 14-aminotetradecan-2-ol Chemical compound CC(O)CCCCCCCCCCCCN OPNSQWVUZYGGKJ-UHFFFAOYSA-N 0.000 claims 3
- PAEZJNSVCCEDKV-UHFFFAOYSA-N 3-[methyl(octyl)amino]propane-1,2-diol Chemical compound CCCCCCCCN(C)CC(O)CO PAEZJNSVCCEDKV-UHFFFAOYSA-N 0.000 claims 3
- YRFSJUGJBAHEQC-UHFFFAOYSA-N 3-(heptan-2-ylamino)propane-1,2-diol Chemical group CCCCCC(C)NCC(O)CO YRFSJUGJBAHEQC-UHFFFAOYSA-N 0.000 claims 2
- FRXFLGGVYABJQI-UHFFFAOYSA-N 1-[dodecyl(methyl)amino]ethanol Chemical compound CCCCCCCCCCCCN(C)C(C)O FRXFLGGVYABJQI-UHFFFAOYSA-N 0.000 claims 1
- JOLMGYIWICXNDT-UHFFFAOYSA-N 2-[dodecyl(methyl)amino]ethanol Chemical compound CCCCCCCCCCCCN(C)CCO JOLMGYIWICXNDT-UHFFFAOYSA-N 0.000 claims 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims 1
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 abstract 1
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 abstract 1
- 125000006725 C1-C10 alkenyl group Chemical group 0.000 abstract 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 21
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- 125000001931 aliphatic group Chemical group 0.000 description 14
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 14
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- 125000004122 cyclic group Chemical group 0.000 description 8
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- LINDOXZENKYESA-UHFFFAOYSA-N TMG Natural products CNC(N)=NC LINDOXZENKYESA-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- HVVNJUAVDAZWCB-YFKPBYRVSA-N [(2s)-pyrrolidin-2-yl]methanol Chemical compound OC[C@@H]1CCCN1 HVVNJUAVDAZWCB-YFKPBYRVSA-N 0.000 description 6
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- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 5
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- 229910052717 sulfur Inorganic materials 0.000 description 5
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- 238000010998 test method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- PXXJHWLDUBFPOL-UHFFFAOYSA-O benzamidine(1+) Chemical compound NC(=[NH2+])C1=CC=CC=C1 PXXJHWLDUBFPOL-UHFFFAOYSA-O 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 125000005594 diketone group Chemical group 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 150000002357 guanidines Chemical class 0.000 description 4
- 150000001261 hydroxy acids Chemical class 0.000 description 4
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 150000002763 monocarboxylic acids Chemical class 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
- OEBXWWBYZJNKRK-UHFFFAOYSA-N 1-methyl-2,3,4,6,7,8-hexahydropyrimido[1,2-a]pyrimidine Chemical compound C1CCN=C2N(C)CCCN21 OEBXWWBYZJNKRK-UHFFFAOYSA-N 0.000 description 3
- JWYUFVNJZUSCSM-UHFFFAOYSA-N 2-aminobenzimidazole Chemical compound C1=CC=C2NC(N)=NC2=C1 JWYUFVNJZUSCSM-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 3
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 150000001565 benzotriazoles Chemical class 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
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- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 3
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- 150000000180 1,2-diols Chemical class 0.000 description 2
- JPBLHOJFMBOCAF-UHFFFAOYSA-N 1,3-benzoxazol-2-amine Chemical compound C1=CC=C2OC(N)=NC2=C1 JPBLHOJFMBOCAF-UHFFFAOYSA-N 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 2
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 2
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- DWYHDSLIWMUSOO-UHFFFAOYSA-N 2-phenyl-1h-benzimidazole Chemical compound C1=CC=CC=C1C1=NC2=CC=CC=C2N1 DWYHDSLIWMUSOO-UHFFFAOYSA-N 0.000 description 2
- YQHJFPFNGVDEDT-UHFFFAOYSA-N 2-tert-butyl-1,1,3,3-tetramethylguanidine Chemical compound CN(C)C(N(C)C)=NC(C)(C)C YQHJFPFNGVDEDT-UHFFFAOYSA-N 0.000 description 2
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- MVPKIPGHRNIOPT-UHFFFAOYSA-N 5,6-dimethyl-2h-benzotriazole Chemical compound C1=C(C)C(C)=CC2=NNN=C21 MVPKIPGHRNIOPT-UHFFFAOYSA-N 0.000 description 2
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- RVEZZJVBDQCTEF-UHFFFAOYSA-N sulfenic acid Chemical compound SO RVEZZJVBDQCTEF-UHFFFAOYSA-N 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 229960000790 thymol Drugs 0.000 description 1
- FGMPLJWBKKVCDB-UHFFFAOYSA-N trans-L-hydroxy-proline Natural products ON1CCCC1C(O)=O FGMPLJWBKKVCDB-UHFFFAOYSA-N 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-O tributylazanium Chemical compound CCCC[NH+](CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-O 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 229960000604 valproic acid Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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Abstract
Disclosed herein is a fuel composition having (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of a low-speed pre-ignition (LSPI)-reducing additive having one or more of an amidine, or a beta-amino alkanol having the structure [Formula]. R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a C1-C20 alkyl group and R5 is hydrogen or an alcohol having the structure (CH)R6-OH. R6 is hydrogen, a C1-C10 alkyl group, or a C1-C10 alkenyl group, or a salt thereof.
Description
COMPOSITION AND METHOD FOR PREVENTING OR REDUCING LOW SPEED
PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES
CROSS-REFERENCE TO RELATED APPLICATIONS
[001] This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 16/362,157, entitled "COMPOSITION AND METHOD FOR
PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL
COMBUSTION ENGINES", filed March 22, 2019, which claims priority from U.S.
Provisional Patent Application No. 62/647,186, entitled "COMPOSITION AND
METHOD FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES", filed March 23, 2018, and U.S.
Provisional Patent Application No. 62/767,686, entitled "COMPOSITION AND
METHOD
FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED
INTERNAL COMBUSTION ENGINES", filed November 15, 2018, the contents which are incorporated by reference.
TECHNICAL FIELD
PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES
CROSS-REFERENCE TO RELATED APPLICATIONS
[001] This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 16/362,157, entitled "COMPOSITION AND METHOD FOR
PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL
COMBUSTION ENGINES", filed March 22, 2019, which claims priority from U.S.
Provisional Patent Application No. 62/647,186, entitled "COMPOSITION AND
METHOD FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES", filed March 23, 2018, and U.S.
Provisional Patent Application No. 62/767,686, entitled "COMPOSITION AND
METHOD
FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED
INTERNAL COMBUSTION ENGINES", filed November 15, 2018, the contents which are incorporated by reference.
TECHNICAL FIELD
[002] This disclosure relates to fuel and lubricant compositions for spark-ignited engines and methods for preventing or reducing low speed pre-ignition events using the same.
BACKGROUND
BACKGROUND
[003] Turbocharged or supercharged engines (i.e., boosted internal combustion engines) may exhibit an abnormal combustion phenomenon known as stochastic pre-ignition or low-speed pre-ignition (or "LSPI"). LSPI is an event that may include very high pressure spikes, early combustion during an inappropriate crank angle, and knock. All of these, individually and in combination, have the potential to cause degradation and/or severe damage to the engine. However, because LSPI
events occur only sporadically and in an uncontrolled fashion, it is difficult to identify the causes for this phenomenon and to develop solutions to suppress it.
events occur only sporadically and in an uncontrolled fashion, it is difficult to identify the causes for this phenomenon and to develop solutions to suppress it.
[004] Pre-ignition is a form of combustion that results in ignition of the air-fuel mixture in the combustion chamber prior to the desired ignition of the air-fuel mixture by the igniter. Pre-ignition has typically been a problem during high load engine operation since heat from operation of the engine may heat a part of the combustion chamber to a sufficient temperature to ignite the air-fuel mixture upon contact. This type of pre-ignition is sometimes referred to as hot-spot pre-ignition.
[005] More recently, intermittent abnormal combustion has been observed in boosted internal combustion engines at low speeds and medium-to-high loads.
For example, during operation of the engine at 3000 rpm or less, under load, with a brake mean effective pressure (BMEP) of at least 10 bar, low-speed pre-ignition (LSPI) may occur in a random and stochastic fashion. During low speed engine operation, the compression stroke time is longest.
For example, during operation of the engine at 3000 rpm or less, under load, with a brake mean effective pressure (BMEP) of at least 10 bar, low-speed pre-ignition (LSPI) may occur in a random and stochastic fashion. During low speed engine operation, the compression stroke time is longest.
[006] Previous studies have demonstrated that turbocharger use, engine design, engine coatings, piston shape, fuel choice, and/or engine oil additives may contribute to an increase in LSPI events. Accordingly, there is a need for fuel and engine oil additive components and/or combinations that are effective to reduce or eliminate LSPI.
SUMMARY
SUMMARY
[007] In one aspect, there is provided a fuel composition comprising (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of a low-speed pre-ignition (LSPI)-reducing additive comprising one or more of an amidine, or a beta-amino alkanol having the structure Rµl R3 OH
IN 1 <
, wherein Ri , R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-C10 alkyl group, or a Ci-C10 alkenyl group, or a salt thereof.
IN 1 <
, wherein Ri , R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-C10 alkyl group, or a Ci-C10 alkenyl group, or a salt thereof.
[008] In another aspect, there is provided a fuel concentrate comprising (1) from 90 to 30 wt % of an organic solvent boiling in a range of from 65 C to 205 C and (2) from 10 to 70 wt % of an additive component selected from one or more of an amidine, or a beta-amino alkanol having the structure IR,i R3 OH
IN 1 <
, wherein R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
IN 1 <
, wherein R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
[009] In a further aspect, there is provided a method of reducing low-speed pre-ignition events in an engine comprising (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of a low-speed pre-ignition (LSPI)-reducing additive comprising one or more of a triazole, an amidine, a beta-amino alkanol having the structure IR,i R3 OH
IN 1 <
, wherein Ri , R2, R3, and R4 are each independently selected from hydrogen and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
DETAILED DESCRIPTION
Introduction
IN 1 <
, wherein Ri , R2, R3, and R4 are each independently selected from hydrogen and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
DETAILED DESCRIPTION
Introduction
[010] In this specification, the following words and expressions, if and when used, have the meanings ascribed below.
[011] "Gasoline" or "gasoline boiling range components" refers to a composition containing at least predominantly C4-C12 hydrocarbons. In one embodiment, gasoline or gasoline boiling range components is further defined to refer to a composition containing at least predominantly C4-C12 hydrocarbons and further having a boiling range of from about 100 F (37.8 C) to about 400 F (204 C). In an alternative embodiment, gasoline or gasoline boiling range components is defined to refer to a composition containing at least predominantly C4-C12 hydrocarbons, having a boiling range of from about 100 F (37.8 C) to about 400 F (204 C), and further defined to meet ASTM D4814.
[012] The term "diesel" refers to middle distillate fuels containing at least predominantly C10-C25 hydrocarbons. In one embodiment, diesel is further defined to refer to a composition containing at least predominantly C10-C25 hydrocarbons, and further having a boiling range of from about 165.6 C (330 F) to about 371.1 C
(700 F).
In an alternative embodiment, diesel is as defined above to refer to a composition containing at least predominantly C10-C25 hydrocarbons, having a boiling range of from about 165.6 C (330 F) to about 371.1 C (700 F), and further defined to meet ASTM D975.
(700 F).
In an alternative embodiment, diesel is as defined above to refer to a composition containing at least predominantly C10-C25 hydrocarbons, having a boiling range of from about 165.6 C (330 F) to about 371.1 C (700 F), and further defined to meet ASTM D975.
[013] The term "oil soluble" means that for a given additive, the amount needed to provide the desired level of activity or performance can be incorporated by being dissolved, dispersed or suspended in an oil of lubricating viscosity.
Usually, this means that at least 0.001% by weight of the additive can be incorporated in a lubricating oil composition. The term "fuel soluble" is an analogous expression for additives dissolved, dispersed or suspended in fuel.
Usually, this means that at least 0.001% by weight of the additive can be incorporated in a lubricating oil composition. The term "fuel soluble" is an analogous expression for additives dissolved, dispersed or suspended in fuel.
[014] The term "alkyl" refers to saturated hydrocarbon groups, which can be linear, branched, cyclic, or a combination of cyclic, linear and/or branched.
[015] An "alkanol" is an alkyl group, as described herein, having a hydroxy substituent (i.e., an ¨OH group).
[016] A "minor amount" means less than 50 wt % of a composition, expressed in respect of the stated additive and in respect of the total weight of the composition, reckoned as active ingredient of the additive.
[017] An "analog" is a compound having a structure similar to another compound but differing from it in respect to a certain component such as one or more atoms, functional groups, substructures, which are replaced with other atoms, groups, or substructures.
[018] A "homolog" is a compound belonging to a series of compounds that differ from each other by a repeating unit. Alkanes are examples of homologs.
For example, ethane and propane are homologs because they differ only in the length of a repeating unit (-CH2-). A homolog may be considered a specific type of analog.
For example, ethane and propane are homologs because they differ only in the length of a repeating unit (-CH2-). A homolog may be considered a specific type of analog.
[019] A "derivative" is a compound that is derived from a similar compound via a chemical reaction (e.g., acid-base reaction, hydrogenation, etc.). In the context of substituent groups, a derivative may be a combination of one or more moiety. For example, a phenol moiety may be considered a derivative of aryl moiety and hydroxyl moiety. A person of ordinary skill in the related art would know the metes and bounds of what is considered a derivative. The term "substituted" refers to a substitution or replacement of an atom or atoms of a compound. As an illustrative example, a "substituted alkyl group" may refer to, among other things, an ethanol.
[020] An "engine" or a "combustion engine" is a heat engine where the combustion of fuel occurs in a combustion chamber. An "internal combustion engine"
is a heat engine where the combustion of fuel occurs in a confined space ("combustion chamber"). A "spark ignition engine" is a heat engine where the combustion is ignited by a spark, usually from a spark plug. This is contrast to a "compression-ignition engine," typically a diesel engine, where the heat generated from compression together with injection of fuel is sufficient to initiate combustion without an external spark.
Low Speed Pre-Ignition (LSPI)
is a heat engine where the combustion of fuel occurs in a confined space ("combustion chamber"). A "spark ignition engine" is a heat engine where the combustion is ignited by a spark, usually from a spark plug. This is contrast to a "compression-ignition engine," typically a diesel engine, where the heat generated from compression together with injection of fuel is sufficient to initiate combustion without an external spark.
Low Speed Pre-Ignition (LSPI)
[021] Low Speed Pre-Ignition (LSPI) is most or more likely to occur in direct-injected, boosted (turbocharged or supercharged), spark-ignited (gasoline) internal combustion engines that, in operation, generate a brake mean effective pressure level of greater than 1000 kPa (10 bar) at engine speeds of from 1500 to 2500 rotations per minute (rpm), such as at engine speeds of from 1500 to 2000 rpm. "Brake mean effective pressure" (BMEP) is defined as the work accomplished during on engine cycle, divided by the engine swept volume, the engine torque normalized by engine displacement. The word "brake" denotes the actual torque or power available at the engine flywheel, as measured on a dynamometer. Thus, BMEP is a measure of the useful energy output of the engine.
[022] It has now been found that the fuel compositions or lubricating oil compositions of this disclosure which are particularly useful in high pressure spark-ignited internal combustion engines and, when used in the high pressure spark-ignited internal combustion engines, will prevent or minimize engine knocking and pre-ignition problems.
Primary LSPI-Reducing Additives
Primary LSPI-Reducing Additives
[023] The following are descriptions of primary additives that can be utilized as a fuel or lubricant additive to reduce LSPI activity. Primary LSPI-reducing additives can be used as standalone additives and/or with other primary additive(s) and/or with of one or more secondary LSPI-reducing additive (described later). When more than one additive is used, the additives may be in salt form. Moreover, when two or more additives are used, there may be synergy between the two or more additives. In general, these additives are fuel or oil soluble at concentrations needed to achieved a desired LSPI reduction level. Table 1 summarizes the primary additive types.
Table 1 Primary Additive Types 1. Amino Additives Beta-amino alkanol Amino acid Amino ester 2. N=C-X Motif Additives Amidine Guanidine Imidazole Benzamidine Benzamidazole Aminobenzimidazole 3. Triazole Additives 4. Benzamidium Additives 5. Benzoxazole Additives 6. Amine Additives Aromatic amine Aliphatic amine 1. Amino Additives n-Amino Alkanol
Table 1 Primary Additive Types 1. Amino Additives Beta-amino alkanol Amino acid Amino ester 2. N=C-X Motif Additives Amidine Guanidine Imidazole Benzamidine Benzamidazole Aminobenzimidazole 3. Triazole Additives 4. Benzamidium Additives 5. Benzoxazole Additives 6. Amine Additives Aromatic amine Aliphatic amine 1. Amino Additives n-Amino Alkanol
[024] The fuel additive or lubricating oil additive of this disclosure may be a 13-amino alkanol, a substituted 13-amino alkanol, a derivative thereof or an acceptable salt thereof. Useful 13-amino alkanols include those that can be represented by the following general formula:
;NI _______________________________ <
Formula 1 wherein Ri, R2, R3, and R4 are each independently selected from hydrogen and a Ci -C20 alkyl (e.g., Ci-C6 alkyl) group; and two or more of Ri, R2, R3, and R4 optionally can be bonded together to form a ring structure (e.g., a five-, six-, or seven-membered ring). In some embodiments, R1, R2, R3, and R4 may independently include one or more aromatic rings. R5 is hydrogen or an alcohol having the structure -(CH)R6-0H
wherein R6 is hydrogen, a Ci-Cio alkyl group, or a CI -CI() alkenyl group. In some embodiments, R5 is hydrogen. In some embodiments, R5 is an alcohol having the structure -(CH)R6-OH wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group.
In embodiments, the 13-amino alkanol is not the following:
/OH ne -\/\./.\./
OH
In certain embodiments, the fuel composition does not comprise the following:
/OH
OH
In certain embodiments, the fuel concentrate does not comprise the following:
/OH
1;) e H2N........õ
OH
0 .
In certain embodiments, the beta-amino alkanol used in the method of reducing low-speed-pre-ignition events in an engine is not the following:
/
/OH
,;) o H2N......,..õ.õ...õ..., In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive does not comprise the following:
/
/OH
oc) e H2N,............õ
OH
0 .
In certain embodiments, the amino alcohol is not the following:
/
/OH
,:) e H2N ..,.........
OH
0 .
;NI _______________________________ <
Formula 1 wherein Ri, R2, R3, and R4 are each independently selected from hydrogen and a Ci -C20 alkyl (e.g., Ci-C6 alkyl) group; and two or more of Ri, R2, R3, and R4 optionally can be bonded together to form a ring structure (e.g., a five-, six-, or seven-membered ring). In some embodiments, R1, R2, R3, and R4 may independently include one or more aromatic rings. R5 is hydrogen or an alcohol having the structure -(CH)R6-0H
wherein R6 is hydrogen, a Ci-Cio alkyl group, or a CI -CI() alkenyl group. In some embodiments, R5 is hydrogen. In some embodiments, R5 is an alcohol having the structure -(CH)R6-OH wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group.
In embodiments, the 13-amino alkanol is not the following:
/OH ne -\/\./.\./
OH
In certain embodiments, the fuel composition does not comprise the following:
/OH
OH
In certain embodiments, the fuel concentrate does not comprise the following:
/OH
1;) e H2N........õ
OH
0 .
In certain embodiments, the beta-amino alkanol used in the method of reducing low-speed-pre-ignition events in an engine is not the following:
/
/OH
,;) o H2N......,..õ.õ...õ..., In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive does not comprise the following:
/
/OH
oc) e H2N,............õ
OH
0 .
In certain embodiments, the amino alcohol is not the following:
/
/OH
,:) e H2N ..,.........
OH
0 .
[025] The 13-amino alkanol has at least 2 carbon atoms (e.g., from 4 to 30 carbon atoms, from 4 to 20 carbon atoms, from 4 to 16 carbon atoms, from 4 to carbon atoms, from 5 to 30 carbon atoms, from 5 to 20 carbon atoms, from 5 to carbon atoms, or from 5 to 12 carbon atoms).
[026] Representative examples of suitable 13-amino alkanols include ethanolamine (Formula 1A), 1-amino-2-propanol (Formula 1B), alaninol (Formula 1C), 2-(methylamino)ethanol (Formula 1D), 2-(ethylamino)ethanol (Formula 1E), amino-2-methyl-1-propanol (Formula 1F), 2-amino-1-butanol (Formula 1G), 2-amino-1-pentanol (Formula 1H), valinol (Formula 11), 2-amino-1-hexanol (Formula 1.1), leucinol (Formula 1K), isoleucinol (Formula 1L), cycloleucinol (Formula 1M), cyclohexylglycinol (Formula 1N), prolinol (Formula 10), 2-(hydroxymethyl)piperidine (Formula 1P), 2-aminocyclopentanol (Formula 1Q), 2-aminocyclohexanol (Formula 1R), aminoheptyl propanediol (3-(heptan-2-ylamino)propane-1,2-diol) (Formula 1T), aminooctyl propanediol (3-(methyl(octyl)amino)propane-1,2-diol) (Formula 1U), and aminododecyl ethanol (2-(dodecyl(methyl)amino)ethan-1-ol) (Formula 1V). In certain embodiments, the 13-amino alkanol is aminoheptyl propanediol (3-(heptan-2-ylamino)propane-1,2-diol) (Formula 1T). In certain embodiments, the 13-amino alkanol is aminooctyl propanediol (3-(methyl(octyl)amino)propane-1,2-diol) (Formula 1U). In certain embodiments, the 13-amino alkanol is aminododecyl ethanol (2-(dodecyl(methyl)amino)ethan-1-ol) (Formula 1V). Representative structures are shown below.
OH
OH H2Nj H2N \__/OH H2N
Formula lA Formula 1B Formula 1C
H H
N \
.rNi OH H2N
OH
OH
Formula 1D Formula lE Formula 1F
OH
NH2 H2N.,-.
OH
OH
_ Formula 1G Formula 1H Formula 1I
NH2 ).OH
OH I.OH
Formula 1J Formula 1K Formula 1L
OH
H21\11 OH /OH
Formula 1M Formula 1N Formula 10 a OH
OH
Formula 1P Formula 1Q Formula 1R
OH
HN;OH
OH
Formula 1S Formula 1T
Me OH
OH
Formula 1U
Me HO N
Formula 1V
In certain embodiments, the 13-amino alkanol is not the following:
OH
HN
OH
In certain embodiments, the fuel composition does not comprise the following:
OH
HN
OH
In certain embodiments, the fuel concentrate does not comprise the following:
OH
HN
OH
In certain embodiments, the beta-amino alkanol used in the method of reducing low-speed-pre-ignition events in an engine is not the following:
OH
HNjOH
In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive does not comprise the following:
OH
HNjOH
In certain embodiments, the amino alcohol is not the following:
OH
HN
OH
In certain embodiments, the 13-amino alkanol is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/OH
OH
In certain embodiments, the fuel composition comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
e H2N.,.................
OH
O .
In certain embodiments, the fuel concentrate comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH ,c) e H2N............õõõ.".........
OH
O .
In certain embodiments, the beta-amimo alkanol used in the method of reducing low-speed-pre-ignition events in an engine is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
,:) e H2N.,....õ......õ---........
OH
O .
In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
e H2N.,...,..õ...õ,,,,......, In certain embodiments, the amino alcohol is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH no H2N.,..........õ.õ,,,%,..., OH
O .
Amino Acid
OH
OH H2Nj H2N \__/OH H2N
Formula lA Formula 1B Formula 1C
H H
N \
.rNi OH H2N
OH
OH
Formula 1D Formula lE Formula 1F
OH
NH2 H2N.,-.
OH
OH
_ Formula 1G Formula 1H Formula 1I
NH2 ).OH
OH I.OH
Formula 1J Formula 1K Formula 1L
OH
H21\11 OH /OH
Formula 1M Formula 1N Formula 10 a OH
OH
Formula 1P Formula 1Q Formula 1R
OH
HN;OH
OH
Formula 1S Formula 1T
Me OH
OH
Formula 1U
Me HO N
Formula 1V
In certain embodiments, the 13-amino alkanol is not the following:
OH
HN
OH
In certain embodiments, the fuel composition does not comprise the following:
OH
HN
OH
In certain embodiments, the fuel concentrate does not comprise the following:
OH
HN
OH
In certain embodiments, the beta-amino alkanol used in the method of reducing low-speed-pre-ignition events in an engine is not the following:
OH
HNjOH
In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive does not comprise the following:
OH
HNjOH
In certain embodiments, the amino alcohol is not the following:
OH
HN
OH
In certain embodiments, the 13-amino alkanol is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/OH
OH
In certain embodiments, the fuel composition comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
e H2N.,.................
OH
O .
In certain embodiments, the fuel concentrate comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH ,c) e H2N............õõõ.".........
OH
O .
In certain embodiments, the beta-amimo alkanol used in the method of reducing low-speed-pre-ignition events in an engine is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
,:) e H2N.,....õ......õ---........
OH
O .
In certain embodiments, the low-speed pre-ignition (LSPI)-reducing additive is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH
e H2N.,...,..õ...õ,,,,......, In certain embodiments, the amino alcohol is or comprises aminoheptyl propanediol, with the proviso that it is not the following:
/
/OH no H2N.,..........õ.õ,,,%,..., OH
O .
Amino Acid
[027] The fuel additive or lubricating oil additive of this disclosure may be an aliphatic amino acid, a substituted aliphatic amino acid, or a derivative thereof, or an acceptable salt thereof. Useful amino acids include those that can be represented by the following general formula:
H
/\N 1 <
H
R OH
Formula 2 wherein R is an "aliphatic" or "aromatic" side chain. Amino acid side chains can be broadly classified as aromatic or aliphatic. An aromatic side chain includes an aromatic ring. Examples of amino acids with aromatic side chains include for example, histidine (Formula 2A), phenylalanine (Formula 2B), tyrosine (Formula 2C), tryptophan (Formula 2D) and the like. Non-aromatic side chains are broadly grouped as "aliphatic" and include, for example, alanine (Formula 2E), glycine (Formula 2F), cysteine (Formula 2G), and the like.
H
/\N 1 <
H
R OH
Formula 2 wherein R is an "aliphatic" or "aromatic" side chain. Amino acid side chains can be broadly classified as aromatic or aliphatic. An aromatic side chain includes an aromatic ring. Examples of amino acids with aromatic side chains include for example, histidine (Formula 2A), phenylalanine (Formula 2B), tyrosine (Formula 2C), tryptophan (Formula 2D) and the like. Non-aromatic side chains are broadly grouped as "aliphatic" and include, for example, alanine (Formula 2E), glycine (Formula 2F), cysteine (Formula 2G), and the like.
[028] The amino acid(s) can be natural and/or non-natural a-amino acids.
Natural amino acids are those encoded by the genetic code, as well as amino acids derived therefrom. These include, for example, hydroxyproline (Formula 2H), y-carboxyglutamate (Formula 21), and citrulline (Formula 2J). In this specification, the term "amino acid" also includes amino acid analogs and mimetics. Analogs are compounds having the same general structure of a natural amino acid, except that the R group is not one found among the natural amino acids.
Natural amino acids are those encoded by the genetic code, as well as amino acids derived therefrom. These include, for example, hydroxyproline (Formula 2H), y-carboxyglutamate (Formula 21), and citrulline (Formula 2J). In this specification, the term "amino acid" also includes amino acid analogs and mimetics. Analogs are compounds having the same general structure of a natural amino acid, except that the R group is not one found among the natural amino acids.
[029] Representative examples of analogs of naturally occurring amino acids include homoserine (Formula 2K), norleucine (Formula 2L), homoproline (Formula 2M) and proline (Formula 2N). An amino acid mimetic is a compound that has a structure different from the general chemical structure of an a-amino acid but functions in a manner similar to one. The amino acid may be an L- or D-amino acid.
Representative structures are shown below.
N...n)\I
( OH OH
Formula 2A Formula 2B
o 10 /
OH
Formula 2C Formula 2D
*LOH
Formula 2E Formula 2F
1-\11....._AOH
HSOH
Formula 2G Formula 2H
HOLOH
H2N)LNLOH
H
Formula 21 Formula 2J
HO( OH .Y'LOH
Formula 2K Formula 2L
)LOH
C?(OH
NH
Formula 2M Formula 2N
Amino Ester
Representative structures are shown below.
N...n)\I
( OH OH
Formula 2A Formula 2B
o 10 /
OH
Formula 2C Formula 2D
*LOH
Formula 2E Formula 2F
1-\11....._AOH
HSOH
Formula 2G Formula 2H
HOLOH
H2N)LNLOH
H
Formula 21 Formula 2J
HO( OH .Y'LOH
Formula 2K Formula 2L
)LOH
C?(OH
NH
Formula 2M Formula 2N
Amino Ester
[030] The fuel additive or lubricating oil additive of this disclosure may be an amino ester, a substituted amino ester, or a derivative thereof, or an acceptable salt thereof. Amino esters can be derived from amino acids (as described above) and alcohols. Amino esters and amino acids may be considered derivatives of each other.
Useful amino esters include those that can be represented by the following general formula:
H
> 1 <
H
R ORi Formula 3 wherein R is an aliphatic side chain and Ri is a carbon chain 1 to 20 carbon atoms in length, preferably 1 to 4 carbon atoms, in particular, methanol or ethanol, preferably methanol.
Useful amino esters include those that can be represented by the following general formula:
H
> 1 <
H
R ORi Formula 3 wherein R is an aliphatic side chain and Ri is a carbon chain 1 to 20 carbon atoms in length, preferably 1 to 4 carbon atoms, in particular, methanol or ethanol, preferably methanol.
[031] The amino esters may include aromatic or aliphatic side chains.
Representative examples of amino esters include methyl alaninate (Formula 3A), ethyl alaninate (Formula 3B), methyl glycinate (Formula 3C), and ethyl glycinate (Formula 3D). Representative structures are shown below.
/ )L0 0 Formula 3A Formula 3B
Formula 3C Formula 3D
2. N=C-X Motif Additives
Representative examples of amino esters include methyl alaninate (Formula 3A), ethyl alaninate (Formula 3B), methyl glycinate (Formula 3C), and ethyl glycinate (Formula 3D). Representative structures are shown below.
/ )L0 0 Formula 3A Formula 3B
Formula 3C Formula 3D
2. N=C-X Motif Additives
[032] A fuel additive or lubricating oil additive of this disclosure may have a N=C-X motif as shown in the generalized structure below NR
Xi X2 Formula 4 wherein R is H, monovalent organic group, or monovalent heterorganic group (described in greater detail below), Xi and X2 are independently H, C, N, 0, or S and wherein Xi or X2 independently includes one or more Ci-C20 alkyl group (e.g., Cl-C6 alkyl) or one or more aromatic ring. In some embodiments, Xi and X2 may include a cyclic structure (e.g., a five-, six-, or seven-membered ring). Cyclic structures may be aromatic or non-aromatic, as well as vary from being fully saturated to fully unsaturated. Suitable examples of additives compatible with Formula 4 include amidines, guanidines, imidazoles, benzamidines, benzimidazoles, and aminobenzimidazoles.
Amidine
Xi X2 Formula 4 wherein R is H, monovalent organic group, or monovalent heterorganic group (described in greater detail below), Xi and X2 are independently H, C, N, 0, or S and wherein Xi or X2 independently includes one or more Ci-C20 alkyl group (e.g., Cl-C6 alkyl) or one or more aromatic ring. In some embodiments, Xi and X2 may include a cyclic structure (e.g., a five-, six-, or seven-membered ring). Cyclic structures may be aromatic or non-aromatic, as well as vary from being fully saturated to fully unsaturated. Suitable examples of additives compatible with Formula 4 include amidines, guanidines, imidazoles, benzamidines, benzimidazoles, and aminobenzimidazoles.
Amidine
[033] The fuel additive or lubricating oil additive of this disclosure may be an amidine, a substituted amidine, or a derivative thereof or an acceptable salt thereof.
Useful amidines include those that can be represented by the following general formula:
R5 .4.... ,....1.4.4.
I
Formula 5 wherein R5, R6, R7 and Rs are each independently selected from hydrogen, monovalent organic groups, monovalent heterorganic groups (e.g., comprising nitrogen, oxygen, sulfur or phosphorus, in the form of groups or moieties that are bonded through a carbon atom and that do not contain acid functionality such as carboxylic or sulfonic), and combinations thereof; and wherein any two or more of R5, R6, R7 and Rs optionally can be bonded together to form a cyclic structure (e.g., a five-, six, or seven-membered ring). The cyclic structures may be aromatic or non-aromatic, as well as vary from being fully saturated to fully unsaturated. The organic and heterorganic groups may have from 1 to 10 carbon atoms (e.g., 1 to 6 carbon atoms).
Useful amidines include those that can be represented by the following general formula:
R5 .4.... ,....1.4.4.
I
Formula 5 wherein R5, R6, R7 and Rs are each independently selected from hydrogen, monovalent organic groups, monovalent heterorganic groups (e.g., comprising nitrogen, oxygen, sulfur or phosphorus, in the form of groups or moieties that are bonded through a carbon atom and that do not contain acid functionality such as carboxylic or sulfonic), and combinations thereof; and wherein any two or more of R5, R6, R7 and Rs optionally can be bonded together to form a cyclic structure (e.g., a five-, six, or seven-membered ring). The cyclic structures may be aromatic or non-aromatic, as well as vary from being fully saturated to fully unsaturated. The organic and heterorganic groups may have from 1 to 10 carbon atoms (e.g., 1 to 6 carbon atoms).
[034] Representative examples of suitable amidines include 1,4,5,6-tetrahydropyri midine (Formula 5A), 1,2-dimethy1-1,4,5,6-tetrahydropyrimidine (Formula 5B), 1,2-diethyl-1,4,5,6-tetrahydropyrimidine (Formula 5C), 1,5-diazabicyclo[4.3.0]non-5-ene (DBN; Formula 5D), 1,8-diazabicyclo[5.4.0]-undeca-ene (DBU; Formula 5E), benzamidine (Formula 5F), benzimidazole (Formula 5G) and 2-phenyl-1H-benzo[d]imidazole (Formula 5M). Representative structures are shown below.
N / N N H C) C
N N N
Formula 5A Formula 5B Formula 5C
NH
NO
/ N r--) NH2 N N
Formula 5D Formula 5E Formula 5F
H
ON..õ
* N>
c)o..-- NE12 C 11 NH2 \---N N
Formula 5G Formula 5H Formula 51 cs)...-- NH2 (s)--- NH2 /\\---N \---N
Formula 5J Formula 5K Formula 5L
0 1\1\ *
N
H
Formula 5M
Guanidine
N / N N H C) C
N N N
Formula 5A Formula 5B Formula 5C
NH
NO
/ N r--) NH2 N N
Formula 5D Formula 5E Formula 5F
H
ON..õ
* N>
c)o..-- NE12 C 11 NH2 \---N N
Formula 5G Formula 5H Formula 51 cs)...-- NH2 (s)--- NH2 /\\---N \---N
Formula 5J Formula 5K Formula 5L
0 1\1\ *
N
H
Formula 5M
Guanidine
[035] The fuel additive or lubricating oil additive of this disclosure may be a guanidine, a substituted guanidine, or a derivative thereof, or an acceptable salt thereof. Useful guanidines include those that can be represented by the following general formula, N,R13 R9,, N N ...... R12 Formula 6 wherein R9, R10, R11, R12 and Ri 3 are each independently selected from hydrogen, monovalent organic groups, monovalent heterorganic groups (e.g., comprising nitrogen, oxygen, sulfur or phosphorus, in the form of groups or moieties that are bonded through a carbon atom and that do not contain acid functionality such as carboxylic or sulfonic), and combinations thereof; and wherein any two or more of R9, Rio, R11, R12 and Ri 3 optionally can be bonded together to form a cyclic structure (e.g., a five-, six, or seven-membered ring). The cyclic structures may be aromatic or non-aromatic, as well as vary from being fully saturated to fully unsaturated. The organic and heterorganic groups may have from 1 to 10 carbon atoms (e.g., 1 to 6 carbon atoms).
[036] Representative examples of suitable guanidines include 1,1,3,3-tetramethylguanidine (TMG; Formula 6A), 2-tert-butyl-1,1,3,3-tetramethylguanidine (BTMG; Formula 66), 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD; Formula 6C), 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (MTBD; Formula 6D) and 1,2-diphenylguanidine (Formula 61). Representative structures shown below.
NH I
Ny N
I I
Formula 6A Formula 6B
N
N
\ NLN /
\ NLN /
H I
Formula 6C Formula 6D
N
H a, N N
0 N)¨
Formula 6E Formula 6F
H
N N R
Y' NH
JLN-------r-OH * N
Formula 6G Formula 6H
0 NH2 00) N N
H
Formula 61 lmidazoles
NH I
Ny N
I I
Formula 6A Formula 6B
N
N
\ NLN /
\ NLN /
H I
Formula 6C Formula 6D
N
H a, N N
0 N)¨
Formula 6E Formula 6F
H
N N R
Y' NH
JLN-------r-OH * N
Formula 6G Formula 6H
0 NH2 00) N N
H
Formula 61 lmidazoles
[037] The fuel additive or lubricating oil additive of this disclosure may be an imidazole, a substituted imidazole, or a derivative thereof, or an acceptable salt thereof. Suitable imidazoles include imidazole (Formula 7A), 1-methylimidazole (Formula 7B), 1-ethylimidazole (Formula 7D), 1-propylimidazole (Formula 7E), 1-n-butylimidazole (Formula 7F), 1-decylimidazole, 1-dodecylimidazole, 2-methylimidazole (Formula 7G), 2-ethylimidazole, 2-isopropylimidazole (Formula 7H), 4-methylimidazole (Formula 71), 1,2-dimethylimidazole (Formula 7J), 2-ethyl-4(5)-methylimidazole (Formula 7K), and 1-vinylimidazole (Formula 7L).
Representative structures are shown below.
(-3 N Nl N
N=i H
Formula 7A Formula 7B Formula 7C
Nl N/ Nl Formula 7D Formula 7E Formula 7F
H
µX zN N¨JN N
.-õ-=:- \
N H HN
Formula 7G Formula 7H Formula 71 H
zN
, (51,1 ) ____________________________ 11 N/
N
Formula 7J Formula 7K Formula 7L
3. Triazole Additives
Representative structures are shown below.
(-3 N Nl N
N=i H
Formula 7A Formula 7B Formula 7C
Nl N/ Nl Formula 7D Formula 7E Formula 7F
H
µX zN N¨JN N
.-õ-=:- \
N H HN
Formula 7G Formula 7H Formula 71 H
zN
, (51,1 ) ____________________________ 11 N/
N
Formula 7J Formula 7K Formula 7L
3. Triazole Additives
[038] The fuel additive or lubricating oil additive of this disclosure may be a triazole, a substituted triazole, or a derivative thereof, or an acceptable salt thereof.
Suitable triazoles include 1, 2, 3-triazole (Formula 8A), 5,6-dimethylbenzotriazole (Formula 88), 1, 2, 4-triazole (Formula 8C), piperidine-substituted triazole (Formula 8D) and benzotriazole analog, for example, an alkyl-substituted benzotriazole, such as a methyl substituted benzotriazole (Formula 8E). Representative structures are shown below.
inNiFi \IA ,N
N
N H
Formula 8A Formula 8B
HN(..._ NH NH
1\1 NN,N
N
Formula 8C Formula 8D
N
Formula 8E
4. Benzamidinium Additives
Suitable triazoles include 1, 2, 3-triazole (Formula 8A), 5,6-dimethylbenzotriazole (Formula 88), 1, 2, 4-triazole (Formula 8C), piperidine-substituted triazole (Formula 8D) and benzotriazole analog, for example, an alkyl-substituted benzotriazole, such as a methyl substituted benzotriazole (Formula 8E). Representative structures are shown below.
inNiFi \IA ,N
N
N H
Formula 8A Formula 8B
HN(..._ NH NH
1\1 NN,N
N
Formula 8C Formula 8D
N
Formula 8E
4. Benzamidinium Additives
[039] The fuel additive or lubricating oil additive of this disclosure may be a benzamidinium, a substituted benzamidinium, or a derivative thereof, or an acceptable salt thereof. Useful benzamidinium additives include those that can be represented by the following general formula 9, wherein Ri, R2, and R3 are independently Ci-C20 alkyl groups.
a R
µ1\1( 2 Formula 9
a R
µ1\1( 2 Formula 9
[040] Suitable benzamidiniums include N,N-dimethyl-N-octylbenzamidium-2-oxide (Formula 9A). Representative structures are shown below.
= I
Formula 9A
e e N N
. =
Formula 9B Formula 9C
5. Benzoxazole Additives
= I
Formula 9A
e e N N
. =
Formula 9B Formula 9C
5. Benzoxazole Additives
[041] The fuel additive or lubricating oil additive of this disclosure may be a benzoxazole, a substituted benzoxazole, or a derivative thereof, or an acceptable salt thereof. Suitable benzoxazoles include benzoxazole (Formula 10A) and 2-aminobenzoxazole (Formula 10B). Representative structures are shown below.
ON( NH2 Formula 10A Formula 10B
6. Amine Additives Aromatic amine
ON( NH2 Formula 10A Formula 10B
6. Amine Additives Aromatic amine
[042] The fuel additive or lubricating oil additive of this disclosure may be an aromatic amine, a substituted aromatic amine, or a derivative thereof, or an acceptable salt thereof. Aromatic amine additives can have the generalized structure shown in Formula 11-1 or 11-2, R
rN N
X
X
Formula 11-1 Formula 11-2 wherein R is independently one or more H or Ci-C20 alkyl group and X is N
(e.g., R-N-R) or 0 .
rN N
X
X
Formula 11-1 Formula 11-2 wherein R is independently one or more H or Ci-C20 alkyl group and X is N
(e.g., R-N-R) or 0 .
[043] Suitable aromatic amines include 2-methylquinolin-8-amine (Formula 11A). Representative structures are shown below.
NFi2 /
N
Formula 1 lA Formula 11B
N
Formula 11C
Aliphatic amine
NFi2 /
N
Formula 1 lA Formula 11B
N
Formula 11C
Aliphatic amine
[044] Suitable aliphatic amines are shown below.
HN
Formula 12A Formula 12B
HN/*/
[10 N*
Formula 12C Formula 12D
Secondary LSPI-Reducing Additives
HN
Formula 12A Formula 12B
HN/*/
[10 N*
Formula 12C Formula 12D
Secondary LSPI-Reducing Additives
[045] The following are descriptions of secondary LSPI-reducing additives that can be utilized as fuel or lubricating additives to reduce LSPI activity. In general, a secondary LSPI-reducing additive, a substituted secondary LSPI-reducing additive, or a derivative thereof will be used in their salt form and in combination with a primary additive to reduce LSPI activity. For example, 8-amino alkanol (primary additive) and aliphatic acid (secondary additive) can be combined and utilized as an LSPI
additive.
Table 2 lists the secondary additive types. Some additives can act as a primary additive and/or secondary additive.
Table 2 Secondary Additive Types 7. Acid Additives Aliphatic acid Unsaturated acid Alkylaromatic acid Aromatic acid Hydroxy acid Amino acid 8. Phenol Additives 9. 1, 3 Dicarbonyl Additives 1,3 Diketone 1,3 Ketoester 10. Hydroxamide Additives 11. Antioxidant Additives 12. Salicylate Additives 7. Acid Additives Aliphatic Acid
additive.
Table 2 lists the secondary additive types. Some additives can act as a primary additive and/or secondary additive.
Table 2 Secondary Additive Types 7. Acid Additives Aliphatic acid Unsaturated acid Alkylaromatic acid Aromatic acid Hydroxy acid Amino acid 8. Phenol Additives 9. 1, 3 Dicarbonyl Additives 1,3 Diketone 1,3 Ketoester 10. Hydroxamide Additives 11. Antioxidant Additives 12. Salicylate Additives 7. Acid Additives Aliphatic Acid
[046] Aliphatic acids are non-aromatic carboxylic acids. Suitable aliphatic acids include mono-carboxylic acids having the following structure R)LOH
Formula 13 wherein R is an aliphatic group having between 2 to 20 carbon atoms. The aliphatic group may be linear or branched and may contain heteroatoms.
Formula 13 wherein R is an aliphatic group having between 2 to 20 carbon atoms. The aliphatic group may be linear or branched and may contain heteroatoms.
[047] Suitable aliphatic acids include hexanoic acid (Formula 13A), heptanoic acid (Formula 13B), octanoic acid (Formula 13C), nonanoic acid (Formula 13D), decanoic acid (Formula 13E), undecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid (C20), behenic acid (C22), 2-ethylbutyric acid (Formula 13F), 3,3-dimethylbutyric acid, 2-methylpentanoic acid (C6), 2-methylhexanoic acid (C7), 4-methylhexanoic acid (C7), 5-methylhexanoic acid (C7), 2,2-dimethylpentanoic acid (C7), 2-propylpentanoic acid (Cs), 2-ethylhexanoic acid (Formula 13G), 2-methylheptanoic acid (Cs), isooctanoic acid (Cs), 3,5,5-trimethylhexanoic acid (C9), 4-methyloctanoic acid (C9), 4-methylnonanoic acid, (C10), isodecanoic acid (C10), 2-butyloctanoic acid (C12), isotridecanoic acid (C13), 2-hexyldecanoic acid (C16), isopalmitic acid (C16), isostearic acid (Formula 13H), 3-cyclohexylpropionic acid, 4-cyclohexylbutyric acid (Formula 131), and cyclohexanepentanoic acid. Representative structures are shown below.
OH )(OH
Formula 13A Formula 13B
LOH OH
Formula 13C Formula 13D
OH
Formula 13E Formula 13F
OH
Formula 13G
OH
Formula 13H
a.):( OH C))LOH
Formula 131 Formula 13J
Unsaturated Acid
OH )(OH
Formula 13A Formula 13B
LOH OH
Formula 13C Formula 13D
OH
Formula 13E Formula 13F
OH
Formula 13G
OH
Formula 13H
a.):( OH C))LOH
Formula 131 Formula 13J
Unsaturated Acid
[048] Suitable unsaturated acids include any organic acids that contain double or triple carbon-carbon bond. Representative unsaturated acids include maleic acid (Formula 14A), fumaric acid (Formula 14B), as well as unsaturated fatty acids such as palmitoleic acid (Formula 14C) and oleic acid (Formula 14D). Representative structures are shown below.
)-)L OH
Formula 14A Formula 14B
_ OH
Formula 14C
¨
OH
Formula 14D
Allwlaromatic Acid
)-)L OH
Formula 14A Formula 14B
_ OH
Formula 14C
¨
OH
Formula 14D
Allwlaromatic Acid
[049] Suitable alkylaromatic acids include both mono-carboxylic acids and dicarboxylic acids. The alkyl carboxylic acid may have 6 or more carbon atoms (e.g., 6 to 24 carbon atoms, 6 to 20 carbon atoms, 8 to 24 carbon atoms, 8 to 20 carbon atoms, or even 8 to 18 carbon atoms). The alkyl moiety may be optionally substituted with one or more substituents such as hydroxy, alkoxy and carbonyl (e.g., aldehydic or ketonic) groups. Suitable examples of alkylaromatic acid include methylbenzoic acid (Formula 15A) and ethylbenzoic acid (Formula 15B). Representative structures are shown below.
OH
Formula 15A Formula 15B Formula 15C
Aromatic Acid
OH
Formula 15A Formula 15B Formula 15C
Aromatic Acid
[050] Suitable aromatic acids include both mono-carboxylic acids and dicarboxylic acids. The alkyl carboxylic acid may have 6 or more carbon atoms (e.g., 6 to 24 carbon atoms, 6 to 20 carbon atoms, 8 to 24 carbon atoms, 8 to 20 carbon atoms, or even 8 to 18 carbon atoms). The alkyl moiety may be optionally substituted with one or more substituents such as hydroxy, alkoxy and carbonyl (e.g., aldehydic or ketonic) groups. Suitable aromatic acids include benzoic acid (Formula 16A), hydroxybenzoic acid (Formula 166), and tetralin carboxylic acid (Formula 16C).
Representative structures are shown below.
OH
* OH
Formula 16A Formula 16B Formula 16C
Hydroxy Acid
Representative structures are shown below.
OH
* OH
Formula 16A Formula 16B Formula 16C
Hydroxy Acid
[051] Suitable hydroxy acids include those that can be represented by the following general formula:
Formula 17 wherein n = 1 to 3. Suitable examples of hydroxy acid include glycolic acid (Formula 17A), lactic acid (Formula 176), malic acid (Formula 17C), tartaric acid (Formula 17D), and citric acid (Formula 17E). Representative structures are shown below.
0 * HO1 L OH
HO OH JL
Formula 17A Formula 17B Formula 17C
o oOH 0 HO( OH
HO)LOH
Formula 17D Formula 17E
Amino Acid
Formula 17 wherein n = 1 to 3. Suitable examples of hydroxy acid include glycolic acid (Formula 17A), lactic acid (Formula 176), malic acid (Formula 17C), tartaric acid (Formula 17D), and citric acid (Formula 17E). Representative structures are shown below.
0 * HO1 L OH
HO OH JL
Formula 17A Formula 17B Formula 17C
o oOH 0 HO( OH
HO)LOH
Formula 17D Formula 17E
Amino Acid
[052] Amino acids can be utilized as primary and/or secondary additives.
Suitable amino acids were previously described above.
8. Phenol Additives Phenol
Suitable amino acids were previously described above.
8. Phenol Additives Phenol
[053] Suitable phenols include, thymol (Formula 18A), eugenol (Formula 188), hydroquinone (Formula 18C), resorcinol (Formula 18D), cresol (Formula 18E) and 2-methylquinolin-8-ol (Formula 18G). Representative structures are shown below.
HO . OH
Formula 18A Formula 18B Formula 18C
OH
HO * OH 0 *
OH
Formula 18D Formula 18E Formula 18F
/
N
OH
Formula 18G
9. 1,3 Dicarbonyl Additives 1, 3 Diketone
HO . OH
Formula 18A Formula 18B Formula 18C
OH
HO * OH 0 *
OH
Formula 18D Formula 18E Formula 18F
/
N
OH
Formula 18G
9. 1,3 Dicarbonyl Additives 1, 3 Diketone
[054] Suitable examples of 1,3 diketone compounds include acetylacetone (Formula 19A)õ and curcumin (Formula 19B). Representative structures are shown below.
))0 0 Formula 19A
o o/
HOI OH
I I
Formula 19B
1,3 Ketoester
))0 0 Formula 19A
o o/
HOI OH
I I
Formula 19B
1,3 Ketoester
[055] Suitable 1,3 ketoesters are shown below.
1::
c;1)) Formula 20A Formula 20B
10. Hydroxamide Additives
1::
c;1)) Formula 20A Formula 20B
10. Hydroxamide Additives
[056] A hydroxamide is a hydroxy derivative of an amide. Useful hydroxamides include those that can be represented by the following general formula:
R1--...N..--1--- R2 I
OH
Formula 21 wherein Ri and R2 are each independently selected from hydrogen or Ci-C20 (e.g., C3-C12) alkyl group. Suitable hydroxamide includes hydroxy methylacetamide (Formula 21A). Representative structures are shown below.
N N )LN=
OH OH OH
Formula 21A Formula 21B Formula 21C
11. Antioxidant Additives
R1--...N..--1--- R2 I
OH
Formula 21 wherein Ri and R2 are each independently selected from hydrogen or Ci-C20 (e.g., C3-C12) alkyl group. Suitable hydroxamide includes hydroxy methylacetamide (Formula 21A). Representative structures are shown below.
N N )LN=
OH OH OH
Formula 21A Formula 21B Formula 21C
11. Antioxidant Additives
[057] Suitable antioxidants include both mono-carboxylic acids and dicarboxylic acids. The alkyl carboxylic acid may have 6 or more carbon atoms (e.g., 6 to 24 carbon atoms, 6 to 20 carbon atoms, 8 to 24 carbon atoms, 8 to 20 carbon atoms, or even 8 to 18 carbon atoms). The alkyl moiety may be optionally substituted with one or more substituents such as hydroxy, alkoxy and carbonyl (e.g., aldehydic or ketonic) groups. Suitable antioxidants include the following.
OH
Formula 22A
12. Salicylate Additives Salicylate
OH
Formula 22A
12. Salicylate Additives Salicylate
[058] Suitable salicylates include 2-hydroxy-5-(tetracosa-1,3,5,7,9,11,13,15,17,19,21,23-dodecayn-1-yl)benzoic acid--dihydrogen (Formula 23E). Suitable salicylates are shown below.
0 0 0H o 101 C) OH OH OH
Formula 23A Formula 23B Formula 23C
* OH
* OH
Formula 23D Formula 23E
Salts
0 0 0H o 101 C) OH OH OH
Formula 23A Formula 23B Formula 23C
* OH
* OH
Formula 23D Formula 23E
Salts
[059] The salts of this disclosure may be prepared by conventional means, for example, by mixing the primary additive with a suitable secondary additive in an aprotic solvent. The order in which one additive is added to the other is not important.
The primary additive and secondary additive are usually mixed together in an approximately equimolar ratio. An excess of the primary or secondary additive component may be used. For example, the molar ratio of base relative to the alkyl carboxylic acid may be about 1.05:1 to 2:1 (e.g., 1.1:1 to 1.5:1).
Representative salts are shown below.
CN (7) Formula 24A
Formula 24B
H H
IN
;) (H3C)2N N(CH3)2 Formula 24C
I
õ
0 iso-,1735 Formula 24D
(+
/Nh oH
H H
Formula 24E
o C, Formula 24F
. 73 0 Me /
N
- -5- +
, Formula 24G
H
I. 0 Formula 24H
o VOH -OH
Formula 241 H
'1 ...,...,....,õN
Formula 24J
Formula 24K
N
Formula 24L
I
Formula 24M
* I
Formula 24N
Formula 240 OH
H
NZD
-0 o Formula 24P
I .
OH
N.,...õ,.......
Formula 24Q
H
. 1 Formula 24R
1 .
CN
N.õ,.....õ.õ"..., H.
Formula 24S
H
aNF
I
H ........,........õ0 Formula 24T
\
'H2N1,,,,N-----.
NN
Formula 24U
+1 0 N%0 N
* _ Formula 24V
1+
101 0_ CrN
N
Formula 24W
OH
H H
\ =/
N
)L
(H3 0)2 N N (CH3)2 Formula 24X
OH
e () OH
Formula 24Y
Y+ 0 N
_ Formula 24Z
H OH
1+
c N CO2 (,) Formula 24AA
Fuel Compositions
The primary additive and secondary additive are usually mixed together in an approximately equimolar ratio. An excess of the primary or secondary additive component may be used. For example, the molar ratio of base relative to the alkyl carboxylic acid may be about 1.05:1 to 2:1 (e.g., 1.1:1 to 1.5:1).
Representative salts are shown below.
CN (7) Formula 24A
Formula 24B
H H
IN
;) (H3C)2N N(CH3)2 Formula 24C
I
õ
0 iso-,1735 Formula 24D
(+
/Nh oH
H H
Formula 24E
o C, Formula 24F
. 73 0 Me /
N
- -5- +
, Formula 24G
H
I. 0 Formula 24H
o VOH -OH
Formula 241 H
'1 ...,...,....,õN
Formula 24J
Formula 24K
N
Formula 24L
I
Formula 24M
* I
Formula 24N
Formula 240 OH
H
NZD
-0 o Formula 24P
I .
OH
N.,...õ,.......
Formula 24Q
H
. 1 Formula 24R
1 .
CN
N.õ,.....õ.õ"..., H.
Formula 24S
H
aNF
I
H ........,........õ0 Formula 24T
\
'H2N1,,,,N-----.
NN
Formula 24U
+1 0 N%0 N
* _ Formula 24V
1+
101 0_ CrN
N
Formula 24W
OH
H H
\ =/
N
)L
(H3 0)2 N N (CH3)2 Formula 24X
OH
e () OH
Formula 24Y
Y+ 0 N
_ Formula 24Z
H OH
1+
c N CO2 (,) Formula 24AA
Fuel Compositions
[060] The compounds of the present disclosure may be useful as additives in hydrocarbon fuels to prevent or reduce engine knock or pre-ignition events in spark-ignited internal combustion engines.
[061] The concentration of the compounds of the present disclosure in hydrocarbon fuel may range from 25 to 5000 parts per million (ppm) by weight (e.g., 50 to 1000 ppm).
[062] The compounds of the present disclosure may be formulated as a concentrate using an inert stable oleophilic (i.e., soluble in hydrocarbon fuel) organic solvent boiling in a range of 65 C to 205 C. An aliphatic or an aromatic hydrocarbon solvent may be used, such as benzene, toluene, xylene, or higher-boiling aromatics or aromatic thinners. Aliphatic alcohols containing 2 to 8 carbon atoms, such as ethanol, isopropanol, methyl isobutyl carbinol, n-butanol and the like, in combination with the hydrocarbon solvents are also suitable for use with the present additives. In the concentrate, the amount of the additive may range from 10 to 70 wt % (e.g., 20 to 40 wt %).
[063] In gasoline fuels, other well-known additives can be employed including oxygenates (e.g., ethanol, methyl tert-butyl ether), other anti-knock agents, and detergents/dispersants (e.g., hydrocarbyl amines, hydrocarbyl poly(oxyalkylene) amines, succinimides, Mannich reaction products, aromatic esters of polyalkylphenoxyalkanols, or polyalkylphenoxyaminoalkanes). Additionally, friction modifiers, antioxidants, metal deactivators and demulsifiers may be present.
[064] In diesel fuels, other well-known additives can be employed, such as pour point depressants, flow improvers, cetane improvers, and the like.
[065] A fuel-soluble, non-volatile carrier fluid or oil may also be used with compounds of this disclosure. The carrier fluid is a chemically inert hydrocarbon-soluble liquid vehicle which substantially increases the non-volatile residue (NVR), or solvent-free liquid fraction of the fuel additive composition while not overwhelmingly contributing to octane requirement increase. The carrier fluid may be a natural or synthetic oil, such as mineral oil, refined petroleum oils, synthetic polyalkanes and alkenes, including hydrogenated and unhydrogenated polyalphaolefins, synthetic polyoxyallwlene-derived oils, such as those described in U.S. Patent Nos.
3,756,793;
4,191,537; and 5,004,478; and in European Patent Appl. Pub. Nos. 356,726 and 382,159.
3,756,793;
4,191,537; and 5,004,478; and in European Patent Appl. Pub. Nos. 356,726 and 382,159.
[066] The carrier fluids may be employed in amounts ranging from 35 to 5000 ppm by weight of the hydrocarbon fuel (e.g., 50 to 3000 ppm of the fuel). When employed in a fuel concentrate, carrier fluids may be present in amounts ranging from 20 to 60 wt % (e.g., 30 to 50 wt %).
Lubricating Oil Compositions
Lubricating Oil Compositions
[067] The compounds of the present disclosure may be useful as additives in lubricating oils to prevent or reduce engine knock or pre-ignition events in spark-ignited internal combustion engines.
[068] The concentration of the compounds of the present disclosure in the lubricating oil composition may range from 0.01 to 15 wt % (e.g., 0.5 to 5 wt %), based on the total weight of the lubricating oil composition.
[069] The oil of lubricating viscosity (sometimes referred to as "base stock"
or "base oil") is the primary liquid constituent of a lubricant, into which additives and possibly other oils are blended, for example to produce a final lubricant (or lubricant composition). A base oil, which is useful for making concentrates as well as for making lubricating oil compositions therefrom, may be selected from natural (vegetable, animal or mineral) and synthetic lubricating oils and mixtures thereof.
or "base oil") is the primary liquid constituent of a lubricant, into which additives and possibly other oils are blended, for example to produce a final lubricant (or lubricant composition). A base oil, which is useful for making concentrates as well as for making lubricating oil compositions therefrom, may be selected from natural (vegetable, animal or mineral) and synthetic lubricating oils and mixtures thereof.
[070] Definitions for the base stocks and base oils in this disclosure are the same as those found in American Petroleum Institute (API) Publication 1509 Annex E
("API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils," December 2016). Group I base stocks contain less than 90%
saturates and/or greater than 0.03% sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1. Group II
base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03%
sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1. Group III base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03% sulfur and have a viscosity index greater than or equal to 120 using the test methods specified in Table E-1. Group IV
base stocks are polyalphaolefins (PAO). Group V base stocks include all other base stocks not included in Group I, II, Ill, or IV.
("API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils," December 2016). Group I base stocks contain less than 90%
saturates and/or greater than 0.03% sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1. Group II
base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03%
sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1. Group III base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03% sulfur and have a viscosity index greater than or equal to 120 using the test methods specified in Table E-1. Group IV
base stocks are polyalphaolefins (PAO). Group V base stocks include all other base stocks not included in Group I, II, Ill, or IV.
[071] Natural oils include animal oils, vegetable oils (e.g., castor oil and lard oil), and mineral oils. Animal and vegetable oils possessing favorable thermal oxidative stability can be used. Of the natural oils, mineral oils are preferred.
Mineral oils vary widely as to their crude source, for example, as to whether they are paraffinic, naphthenic, or mixed paraffinic-naphthenic. Oils derived from coal or shale are also useful. Natural oils vary also as to the method used for their production and purification, for example, their distillation range and whether they are straight run or cracked, hydrorefined, or solvent extracted.
Mineral oils vary widely as to their crude source, for example, as to whether they are paraffinic, naphthenic, or mixed paraffinic-naphthenic. Oils derived from coal or shale are also useful. Natural oils vary also as to the method used for their production and purification, for example, their distillation range and whether they are straight run or cracked, hydrorefined, or solvent extracted.
[072] Synthetic oils include hydrocarbon oil. Hydrocarbon oils include oils such as polymerized and interpolymerized olefins (e.g., polybutylenes, polypropylenes, propylene isobutylene copolymers, ethylene-olefin copolymers, and ethylene-alphaolefin copolymers). Polyalphaolefin (PAO) oil base stocks are commonly used synthetic hydrocarbon oil. By way of example, PAOs derived from C8 to C14 olefins, e.g., C8, C10, C12, C14 olefins or mixtures thereof, may be utilized.
[073] Other useful fluids for use as base oils include non-conventional or unconventional base stocks that have been processed, preferably catalytically, or synthesized to provide high performance characteristics.
[074] Non-conventional or unconventional base stocks/base oils include one or more of a mixture of base stock(s) derived from one or more Gas-to-Liquids (GTL) materials, as well as isomerate/isodewaxate base stock(s) derived from natural wax or waxy feeds, mineral and or non-mineral oil waxy feed stocks such as slack waxes, natural waxes, and waxy stocks such as gas oils, waxy fuels hydrocracker bottoms, waxy raffinate, hydrocrackate, thermal crackates, or other mineral, mineral oil, or even non-petroleum oil derived waxy materials such as waxy materials received from coal liquefaction or shale oil, and mixtures of such base stocks.
[075] Base oils for use in the lubricating oil compositions of present disclosure are any of the variety of oils corresponding to API Group I, Group II, Group III, Group IV, and Group V oils, and mixtures thereof, preferably API Group II, Group III, Group IV, and Group V oils, and mixtures thereof, more preferably the Group III to Group V base oils due to their exceptional volatility, stability, viscometric and cleanliness features.
[076] Typically, the base oil will have a kinematic viscosity at 100 C (ASTM
D445) in a range of 2.5 to 20 mm2/s (e.g., 3 to 12 mm2/s, 4 to 10 mm2/s, or 4.5 to 8 mm2/s).
D445) in a range of 2.5 to 20 mm2/s (e.g., 3 to 12 mm2/s, 4 to 10 mm2/s, or 4.5 to 8 mm2/s).
[077] The present lubricating oil compositions may also contain conventional lubricant additives for imparting auxiliary functions to give a finished lubricating oil composition in which these additives are dispersed or dissolved. For example, the lubricating oil compositions can be blended with antioxidants, ashless dispersants, anti-wear agents, detergents such as metal detergents, rust inhibitors, dehazing agents, demulsifying agents, friction modifiers, metal deactivating agents, pour point depressants, viscosity modifiers, antifoaming agents, co-solvents, package compatibilizers, corrosion-inhibitors, dyes, extreme pressure agents and the like and mixtures thereof. A variety of the additives are known and commercially available.
These additives, or their analogous compounds, can be employed for the preparation of the lubricating oil compositions of the invention by the usual blending procedures.
These additives, or their analogous compounds, can be employed for the preparation of the lubricating oil compositions of the invention by the usual blending procedures.
[078] Each of the foregoing additives, when used, is used at a functionally effective amount to impart the desired properties to the lubricant. Thus, for example, if an additive is an ashless dispersant, a functionally effective amount of this ashless dispersant would be an amount sufficient to impart the desired dispersancy characteristics to the lubricant. Generally, the concentration of each of these additives, when used, may range, unless otherwise specified, from about 0.001 to about 20 wt %, such as about 0.01 to about 10 wt %.
EXAMPLES
EXAMPLES
[079] The following illustrative examples are intended to be non-limiting.
[080] The test compounds were blended in gasoline or lube oil and their capacity for reducing LSPI events were determined using the test method described below.
[081] A GM 2.0 L LHU 4-cylinder gasoline turbocharged direct-injected engine was used for LSPI testing. Each cylinder was equipped with a combustion pressure sensor.
[082] A six-segment test procedure was used to determine the number of LSPI
events that occurred under conditions of an engine speed of 2000 rpm and a load of 275 Nm. The LSPI test condition is run for 28 minutes with each segment separated by an idle period. The first segment is used to condition the oil and the number of LSPI
events are not counted. Each segment is slightly truncated to eliminate the transient portion. Each truncated segment typically has approximately 100,000 combustion cycles (25,000 combustion cycles per cylinder). In total, the five truncated segments where LSPI events are counted have approximately 500,000 combustion cycles (125,000 combustion cycles per cylinder). There may be instances of shortened tests in the event the engine cannot complete all six segments.
events that occurred under conditions of an engine speed of 2000 rpm and a load of 275 Nm. The LSPI test condition is run for 28 minutes with each segment separated by an idle period. The first segment is used to condition the oil and the number of LSPI
events are not counted. Each segment is slightly truncated to eliminate the transient portion. Each truncated segment typically has approximately 100,000 combustion cycles (25,000 combustion cycles per cylinder). In total, the five truncated segments where LSPI events are counted have approximately 500,000 combustion cycles (125,000 combustion cycles per cylinder). There may be instances of shortened tests in the event the engine cannot complete all six segments.
[083] LSPI-impacted combustion cycles were determined by monitoring peak cylinder pressure (PP) and crank angle at 5% total heat release (A15). LSPI-impacted combustion cycles are defined as having both (1) a PP greater than five standard deviations than the average PP for a given cylinder and truncated segment and (2) an A15 greater than five standard deviations less than the average for a given cylinder and truncated segment.
[084] The LSPI frequency is reported as the number of LSPI-impacted combustion cycles per million combustion cycles and is calculated as follows:
LSPI Frequency = [(Total Number of LSPI Impacted Combustion Cycles in five Truncated Segments)/(Total Number of Combustion Cycles in five Truncated Segments)] x 1,000,000
LSPI Frequency = [(Total Number of LSPI Impacted Combustion Cycles in five Truncated Segments)/(Total Number of Combustion Cycles in five Truncated Segments)] x 1,000,000
[085] An additive associated with a test fuel and/or test lubricant that reduces the LSPI frequency, when compared to the corresponding baseline fuel and/or baseline lubricant, is considered an additive that mitigates LSPI frequency. The test results are set forth in Table 2.
o t..) o LSPI Activity t..) o Additive Reference Drop in Ex. Base Base (events/million o Additive Component Concentr (events/million LSPI Formula o No. Fluid combustion o u, ation combustion cycles) Activity (...) cycles) 1 Prolinol Fuel 108 268 60% 10 PPmw 2 Prolinol Fuel 155 268 42% 10 PPmw 3 DBU/2-ethylhexanoate Fuel 14 250 94% 24A
PPmw P
500 .
4 DBU/2-ethylhexanoate Fuel 28 225 87% 24A , , PPmw "
DBU/2-ethylhexanoate Fuel 65 255 75% 24A 10;
"
PPmw , , Tributylammonium/2- 1114 , 6 Fuel 166 265 37% 24B , ethylhexanoate PPmw 7 TMG/2-ethylhexanoate Fuel 52 217 76% 24C
PPmw 8 DBU/isostearate Fuel 48 240 80% 24D
PPmw Lube 9 DBU/isostearate 1.9 wt % 113 285 60% 24D 1-d Oil n 1-i Prolino1/2-ethylhexanoate Fuel 193 316 39% 24E t..) PPmw =
,-, Lube o O-11 Prolino1/2-ethylhexanoate 1.1 wt % 131 316 59% 24E u, Oil cee o u, Monosubstituted amine/2- 1114 12 Fuel 213 300 29% 24F t..) ethylhexanoate PPmw o 13 Aliquat/2-ethylhexanoate High Fuel 243 350 31% 24G O-o o 14 DBU/Proline Fuel 50 350 86% 24H o u, PPmw (...) 15 DBU/diketone Fuel 62 374 83% 24J
PPmw 16 DBU/oleate Fuel 38 520 93% 24K
PPmw 17 DBU/Toluene Fuel 74 531 86% 24L
PPmw 18 DBU/Tetralin Carboxylate Fuel 106 540 80% 24M 2 PPmw , , 1020 rõ
cio 19 DBU/Phenoxide Fuel 36 600 94% 24N
rõ
PPmw 2 , 514 , -20 DBU Fuel 78 419 81% 5E
, , PPmw 21 TMG Fuel 154 463 67% 6A
PPmw 22 DBU/Phenol Fuel 218 462 53% 24W
PPmw 23 DBU/SA analog Fuel 152 396 62% 240 1-d PPmw n 1-i 2421 t..) 24 DBU Antioxidant Fuel 24 416 94% 24P
,-, PPmw o O-u, cio o u, 25 DBU/Hydroxy acid Fuel 159 367 57% 24Q t..) o PPmw t..) o O-o 1577 o 26 DBU/Ketoester Fuel 10 510 98% 24R o u, PPmw (...) 27 DBU/Hydroxamide Fuel 123 536 77% 24S
PPmw 28 MorphGuam Fuel 119 478 75% 6F
PPmw 29 TMG/antioxidant Fuel 24 498 95% 24X P
PPmw 2 , , .6. 676 o 30 Benzamidine Fuel 59 444 87% 5F
PPmw "
'7 5', 31 MorphGuam/2- ethylhexanoate Fuel 26 352 93% 241 PPmw 32 Benzamidazole Fuel 151 353 57% 5G
PPmw 33 lmidazole Fuel 112 330 66% 7A
PPmw 34 2-aminobenzimidazole Fuel 16 281 94% 6E 1-d n PPmw 35 TMG/Ketoester Fuel 99 381 74% 24U t..) =
PPmw o O-u, cio o u, 36 DBU/Ethyl Salicylate Fuel 34 472 93% 24V t..) PPmw t..) o N-(2,3-dihydroxypropyl)heptan-O-1000 o 37 2-aminium (AHPD)/2- Fuel 84 312 73% 24Y o o PPmw u, ethylhexanoate (...) 401.5 38 benzoxazole Fuel 197 344 43% 10A
PPmw 805.4 39 2-aminobenzoxazole Fuel 239 338 29% 10B
PPmw N,N-dimethyl-N- 1665.7 40 Fuel 10 246 96% 9A
octylbenzamidinium-2-oxide ppmw 991.9 P
41 5,6-dimethylbenzotriazole Fuel 109 235 54% 8B PPmw , , u, 1869.9 .
"
o 42 DBU/phenoxide Fuel 0 215 100% 24Z
IV
, 4162.2 , .
43 DBU/salicylate Fuel 46 197 77% 24AA
, , PPmw 1166.1 44 2-phenyl-1H-benzo[d]imidazole Fuel 121 192 37% 5M
PPmw 1725.5 45 1,3-diphenylguanidine Fuel 12 134 91% 61 PPmw 3-(heptan-2-ylamino)propane- 1126 46 Fuel 14 197 93% 1T
1,2-diol (AHPD) PPmw 1-d n 47 Prolinol Fuel 35 159 78% 10 5 PPmw ,.., =
o 48 Prolinol Fuel 43 158 73% 10 O-PPmw u, cio o u, 49 Prolinol Fuel 43 137 69% 10 t..) PPmw t..) o 50 Prolinol Fuel 108 163 35% 10 O-o PPmw o o u, 3-(methyl(octyl)amino)propane- 1345 (...) 51 Fuel 157 292 46% 1U
1,2-diol PPmw 2-(methyl(dodecyl)amino)ethan- 1506 52 Fuel 141 318 56% 1V
1-ol PPmw 53 DBU 2-methylquinolin-8-olate Fuel 0 215 100% 24Z
PPmw 54 DBU C24-salicylate Fuel 46 197 77% 24AA
PPmw P
.
, , ,, ,, .
,, '7 .
u, , , IV
n 1-i ,.., =
,z -a u, c, =
u,
o t..) o LSPI Activity t..) o Additive Reference Drop in Ex. Base Base (events/million o Additive Component Concentr (events/million LSPI Formula o No. Fluid combustion o u, ation combustion cycles) Activity (...) cycles) 1 Prolinol Fuel 108 268 60% 10 PPmw 2 Prolinol Fuel 155 268 42% 10 PPmw 3 DBU/2-ethylhexanoate Fuel 14 250 94% 24A
PPmw P
500 .
4 DBU/2-ethylhexanoate Fuel 28 225 87% 24A , , PPmw "
DBU/2-ethylhexanoate Fuel 65 255 75% 24A 10;
"
PPmw , , Tributylammonium/2- 1114 , 6 Fuel 166 265 37% 24B , ethylhexanoate PPmw 7 TMG/2-ethylhexanoate Fuel 52 217 76% 24C
PPmw 8 DBU/isostearate Fuel 48 240 80% 24D
PPmw Lube 9 DBU/isostearate 1.9 wt % 113 285 60% 24D 1-d Oil n 1-i Prolino1/2-ethylhexanoate Fuel 193 316 39% 24E t..) PPmw =
,-, Lube o O-11 Prolino1/2-ethylhexanoate 1.1 wt % 131 316 59% 24E u, Oil cee o u, Monosubstituted amine/2- 1114 12 Fuel 213 300 29% 24F t..) ethylhexanoate PPmw o 13 Aliquat/2-ethylhexanoate High Fuel 243 350 31% 24G O-o o 14 DBU/Proline Fuel 50 350 86% 24H o u, PPmw (...) 15 DBU/diketone Fuel 62 374 83% 24J
PPmw 16 DBU/oleate Fuel 38 520 93% 24K
PPmw 17 DBU/Toluene Fuel 74 531 86% 24L
PPmw 18 DBU/Tetralin Carboxylate Fuel 106 540 80% 24M 2 PPmw , , 1020 rõ
cio 19 DBU/Phenoxide Fuel 36 600 94% 24N
rõ
PPmw 2 , 514 , -20 DBU Fuel 78 419 81% 5E
, , PPmw 21 TMG Fuel 154 463 67% 6A
PPmw 22 DBU/Phenol Fuel 218 462 53% 24W
PPmw 23 DBU/SA analog Fuel 152 396 62% 240 1-d PPmw n 1-i 2421 t..) 24 DBU Antioxidant Fuel 24 416 94% 24P
,-, PPmw o O-u, cio o u, 25 DBU/Hydroxy acid Fuel 159 367 57% 24Q t..) o PPmw t..) o O-o 1577 o 26 DBU/Ketoester Fuel 10 510 98% 24R o u, PPmw (...) 27 DBU/Hydroxamide Fuel 123 536 77% 24S
PPmw 28 MorphGuam Fuel 119 478 75% 6F
PPmw 29 TMG/antioxidant Fuel 24 498 95% 24X P
PPmw 2 , , .6. 676 o 30 Benzamidine Fuel 59 444 87% 5F
PPmw "
'7 5', 31 MorphGuam/2- ethylhexanoate Fuel 26 352 93% 241 PPmw 32 Benzamidazole Fuel 151 353 57% 5G
PPmw 33 lmidazole Fuel 112 330 66% 7A
PPmw 34 2-aminobenzimidazole Fuel 16 281 94% 6E 1-d n PPmw 35 TMG/Ketoester Fuel 99 381 74% 24U t..) =
PPmw o O-u, cio o u, 36 DBU/Ethyl Salicylate Fuel 34 472 93% 24V t..) PPmw t..) o N-(2,3-dihydroxypropyl)heptan-O-1000 o 37 2-aminium (AHPD)/2- Fuel 84 312 73% 24Y o o PPmw u, ethylhexanoate (...) 401.5 38 benzoxazole Fuel 197 344 43% 10A
PPmw 805.4 39 2-aminobenzoxazole Fuel 239 338 29% 10B
PPmw N,N-dimethyl-N- 1665.7 40 Fuel 10 246 96% 9A
octylbenzamidinium-2-oxide ppmw 991.9 P
41 5,6-dimethylbenzotriazole Fuel 109 235 54% 8B PPmw , , u, 1869.9 .
"
o 42 DBU/phenoxide Fuel 0 215 100% 24Z
IV
, 4162.2 , .
43 DBU/salicylate Fuel 46 197 77% 24AA
, , PPmw 1166.1 44 2-phenyl-1H-benzo[d]imidazole Fuel 121 192 37% 5M
PPmw 1725.5 45 1,3-diphenylguanidine Fuel 12 134 91% 61 PPmw 3-(heptan-2-ylamino)propane- 1126 46 Fuel 14 197 93% 1T
1,2-diol (AHPD) PPmw 1-d n 47 Prolinol Fuel 35 159 78% 10 5 PPmw ,.., =
o 48 Prolinol Fuel 43 158 73% 10 O-PPmw u, cio o u, 49 Prolinol Fuel 43 137 69% 10 t..) PPmw t..) o 50 Prolinol Fuel 108 163 35% 10 O-o PPmw o o u, 3-(methyl(octyl)amino)propane- 1345 (...) 51 Fuel 157 292 46% 1U
1,2-diol PPmw 2-(methyl(dodecyl)amino)ethan- 1506 52 Fuel 141 318 56% 1V
1-ol PPmw 53 DBU 2-methylquinolin-8-olate Fuel 0 215 100% 24Z
PPmw 54 DBU C24-salicylate Fuel 46 197 77% 24AA
PPmw P
.
, , ,, ,, .
,, '7 .
u, , , IV
n 1-i ,.., =
,z -a u, c, =
u,
Claims (20)
1. A fuel composition comprising (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of:
a low-speed pre-ignition (LSPI)-reducing additive comprising one or more of an amidine, or a beta-amino alkanol having the structure wherein R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)Ro-OH wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
a low-speed pre-ignition (LSPI)-reducing additive comprising one or more of an amidine, or a beta-amino alkanol having the structure wherein R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)Ro-OH wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
2. The fuel composition of claim 1, wherein two or more of Ri , R2, R3, and R4 form a ring structure.
3. The fuel composition of claim 1, wherein at least one of Ri , R2, R3, and R4 is an aromatic rings.
4. The fuel composition of claim 1, wherein the LSPI-reducing additive is an amino alcohol.
5. The fuel composition of claim 4, wherein the amino alcohol is an aminoheptyl propanediol, an aminooctyl propanediol, or an aminododecyl ethanol,
6. The fuel composition of claim 1, wherein the LSPI-reducing additive is 3-(heptan-2-ylamino)propane-1,2-diol, 3-(methyl(octyl)amino)propane-1,2-diol, or (methyl(dodecyl)amino)etha n-1 -ol.
7. The fuel composition of claim 1, wherein the LSPI-reducing additive is methylquinolin-8-olate, or DBU C24-salicylate.
8. The fuel composition of claim 1, wherein the salt thereof comprises a secondary additive comprising one or more of: acid additive, phenol additive, 1,3 dicarbonyl additive, hydroxamide additive, antioxidant additive or a salicylate additive.
9. A fuel concentrate comprising (1) from 90 to 30 wt % of an organic solvent boiling in a range of from 65 C to 205 C and (2) from 10 to 70 wt % of an additive component selected from one or more of an amidine, or a beta-amino alkanol having the structure wherein R1, R2, R3, and R4 are each independently selected from hydrogen, aromatic ring, and a Ci-C20 alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
10. The fuel concentrate of claim 9, wherein two or more of Ri, R2, R3, and R4 form a ring structure.
11. The fuel concentrate of claim 9, wherein at least one of Ri , R2, R3, and R4 is an aromatic rings.
12. The fuel concentrate of claim 9, wherein the LSPI-reducing additive is an amino alcohol.
13. The fuel concentrate of claim 12, wherein the amino alcohol is an aminoheptyl propanediol, an aminooctyl propanediol, or an aminododecyl ethanol,
14. The fuel concentrate of claim 9, wherein the LSPI-reducing additive is (heptan-2-ylamino)propane-1,2-diol, 3-(methyl(octyl)amino)propane-1,2-diol, or (methyl(dodecyl)a m i no)etha n-1-ol.
15. The fuel concentrate of claim 9, wherein the LSPI-reducing additive is methylquinolin-8-olate, or DBU C24-salicylate.
16. A method of reducing low-speed pre-ignition events in an engine comprising (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of a low-speed pre-ignition (LSPI)-reducing additive comprising one or more of:
a triazole, an amidine, a beta-amino alkanol having the structure wherein Ri, R2, R3, and R4 are each independently selected from hydrogen and a Ci-C2o alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H
wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
a triazole, an amidine, a beta-amino alkanol having the structure wherein Ri, R2, R3, and R4 are each independently selected from hydrogen and a Ci-C2o alkyl group and R5 is hydrogen or an alcohol having the structure ¨(CH)R6-0H
wherein R6 is hydrogen, a Ci-Cio alkyl group, or a Ci-Cio alkenyl group, or a salt thereof.
17. The method of claim 16, wherein the triazole is a benzotriazole.
18. The method of claim 16, wherein LSPI-reducing additive is an amino alcohol.
19. The method of claim 16, wherein the amino alcohol is an aminoheptyl propanediol, an aminooctyl propanediol, or an aminododecyl ethanol,
20. The method of claim 16, wherein the LSPI-reducing additive is 3-(heptan-2-ylamino)propane-1,2-diol, 3-(methyl(octyl)amino)propane-1,2-diol, or 2-(methyl(dodecyl)amino)ethan-1-ol.
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US201862767686P | 2018-11-15 | 2018-11-15 | |
US62/767,686 | 2018-11-15 | ||
US16/362,157 | 2019-03-22 | ||
US16/362,157 US20190292473A1 (en) | 2018-03-23 | 2019-03-22 | Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines |
US16/578,819 US20200017789A1 (en) | 2018-03-23 | 2019-09-23 | Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines |
PCT/IB2019/058057 WO2020099953A1 (en) | 2018-11-15 | 2019-09-23 | Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines |
US16/578,819 | 2019-09-23 |
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JP (1) | JP7544700B2 (en) |
KR (1) | KR20210092786A (en) |
AU (1) | AU2019380726A1 (en) |
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CO (1) | CO2021007774A2 (en) |
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DE3826797A1 (en) | 1988-08-06 | 1990-02-08 | Basf Ag | FUEL COMPOSITIONS CONTAINING POLYCARBONIC ACIDIC LOW-CHAIN ALCOHOLS |
DE3838918A1 (en) | 1988-11-17 | 1990-05-23 | Basf Ag | FUELS FOR COMBUSTION ENGINES |
EP0382159A1 (en) | 1989-02-06 | 1990-08-16 | E.I. Du Pont De Nemours And Company | Defouling of fuel systems |
CN102443448B (en) * | 2010-10-11 | 2014-07-30 | 中国石油化工股份有限公司 | Diesel composition and method for increasing oxidation stability of biodiesel |
WO2015059206A1 (en) * | 2013-10-24 | 2015-04-30 | Shell Internationale Research Maatschappij B.V. | Liquid fuel compositions |
US9873849B2 (en) * | 2015-12-10 | 2018-01-23 | Afton Chemical Corporation | Dialkyaminoalkanol friction modifiers for fuels and lubricants |
DE102016116348A1 (en) * | 2016-09-01 | 2018-03-01 | Tunap Gmbh & Co. Kg | FUEL ADDITIVES FOR CLEANING A COMBUSTION ENGINE |
CN107686754A (en) * | 2017-09-11 | 2018-02-13 | 滕晓明 | A kind of compound fuel oil additive |
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- 2019-09-23 KR KR1020217018465A patent/KR20210092786A/en unknown
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- 2019-09-23 CA CA3119923A patent/CA3119923A1/en active Pending
- 2019-09-23 AU AU2019380726A patent/AU2019380726A1/en active Pending
- 2019-09-23 MX MX2021005629A patent/MX2021005629A/en unknown
- 2019-09-23 WO PCT/IB2019/058057 patent/WO2020099953A1/en unknown
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2021
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JP7544700B2 (en) | 2024-09-03 |
KR20210092786A (en) | 2021-07-26 |
AU2019380726A1 (en) | 2021-06-03 |
WO2020099953A1 (en) | 2020-05-22 |
JP2022507597A (en) | 2022-01-18 |
CO2021007774A2 (en) | 2021-07-19 |
SG11202105033SA (en) | 2021-06-29 |
MX2021005629A (en) | 2021-07-06 |
ZA202103403B (en) | 2022-10-26 |
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