CN111484881A - Energy-saving emission-reducing agent in compression-ignition engine - Google Patents
Energy-saving emission-reducing agent in compression-ignition engine Download PDFInfo
- Publication number
- CN111484881A CN111484881A CN202010304377.1A CN202010304377A CN111484881A CN 111484881 A CN111484881 A CN 111484881A CN 202010304377 A CN202010304377 A CN 202010304377A CN 111484881 A CN111484881 A CN 111484881A
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- compression
- saving emission
- ignition engine
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 38
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 103
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 20
- 239000006184 cosolvent Substances 0.000 claims abstract description 14
- 229910017464 nitrogen compound Inorganic materials 0.000 claims abstract description 14
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims abstract description 14
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims abstract description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004202 carbamide Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003112 inhibitor Substances 0.000 claims abstract description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 11
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 10
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 5
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005886 esterification reaction Methods 0.000 claims abstract description 5
- 239000011780 sodium chloride Substances 0.000 claims abstract description 5
- 238000006193 diazotization reaction Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 239000012267 brine Substances 0.000 claims description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 23
- 230000009467 reduction Effects 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 20
- 239000000446 fuel Substances 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000006722 reduction reaction Methods 0.000 description 12
- 238000011160 research Methods 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 238000010531 catalytic reduction reaction Methods 0.000 description 9
- 239000004215 Carbon black (E152) Substances 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 241000282414 Homo sapiens Species 0.000 description 7
- 238000013329 compounding Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- -1 heterocyclic organic compound Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 5
- 239000003502 gasoline Substances 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000002283 diesel fuel Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 150000007974 melamines Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000000859 sublimation Methods 0.000 description 3
- 230000008022 sublimation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical compound [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- WNVQBUHCOYRLPA-UHFFFAOYSA-N triuret Chemical compound NC(=O)NC(=O)NC(N)=O WNVQBUHCOYRLPA-UHFFFAOYSA-N 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/1811—Organic compounds containing oxygen peroxides; ozonides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
- C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
- C10L1/1826—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms poly-hydroxy
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/192—Macromolecular compounds
- C10L1/198—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid
- C10L1/1985—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid polyethers, e.g. di- polygylcols and derivatives; ethers - esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/226—Organic compounds containing nitrogen containing at least one nitrogen-to-nitrogen bond, e.g. azo compounds, azides, hydrazines
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention provides an energy-saving emission-reducing agent in a compression-ignition engine, which comprises the following components in percentage by weight: 50% -30% of polymethoxy dimethyl ether; 20% -30% of a polyoxide; 20% -30% of nitrogen oxide inhibitor; cosolvent A10%; wherein the nitrogen oxide inhibitor comprises the following components: 40-30% of a multi-nitrogen compound; 30-40% of urea or melamine; 20% of ethylene glycol; 10% of cosolvent B; the multi-nitrogen compound is o-phenylenediamine and sodium nitrite under the acidic conditionThe product obtained by the diazotization and esterification reaction; the polyoxide is 98% tert-butyl peroxide prepared by taking 70% tert-butyl hydroperoxide and benzoyl chloride as raw materials and reacting under the condition of adding saline water and sodium hydroxide. The energy-saving emission-reducing agent provided by the invention can efficiently realize NO in engine tail gasxAnd HC and CO emission reduction, and has the characteristics of cleanness and environmental protection.
Description
Technical Field
The invention belongs to an energy-saving emission-reducing agent, and particularly relates to an energy-saving emission-reducing agent in a compression ignition engine.
Background
In the world, energy and environment are confirmed to be main factors influencing the sustainable development of the global economy and society, the energy is a material basis of human survival and economic development, and the discovery and utilization of fossil energy can make people stand out agricultural culture civilization and enter industrial culture civilization. The practice of industrial civilization for more than 200 years shows that the use of fossil energy brings great social progress and also brings severe environmental problems and climate problems, and the sustainable development of China and even the world in the future calls for the human to change from the industrial civilization to the ecological civilization.
Human life activities (combustion of fuels such as gasoline and diesel) result in severe atmospheric pollution and produce large amounts of emissions such as carbon emissions (CO, HC) and Nitrogen Oxides (NO)x) These emissions threaten the environment and health of human beings. The current industrial situation and energy structure in China determine that the emission of carbon monoxide, hydrocarbon and nitrogen oxide is always high, and the manufacturing industry, the electric power industry and the transportation industry are main emission sources of the three waste gases, wherein the emission of tail gas in the transportation industry is on the trend of increasing year by year, and the electric power industry such as a thermal power plant and the like are used as coal-fired households in China and generate the majority of the emission of the waste gases in China through the direct combustion of coal. At present, the production activities of human beings cause great damage to the ecological environment, carbon monoxide, hydrocarbon and nitrogen oxide pollutants in the atmosphere have serious threats to the health of human beings, and China is facing a severe emission reduction situation at present.
26.10.2018, the latest revised air pollution prevention and control law of the people's republic of China is issued by China, wherein the emission control of nitrogen oxides is emphasized, and a clean production process, a matched denitration device or other measures for controlling the emission of air pollutants such as technical transformation and the like are required to be adopted by a coal-fired power plant and other coal-fired units. In the production process of enterprises such as steel, building materials, nonferrous metals, petroleum, chemical engineering and the like, nitrogen oxides are discharged, a clean production process is adopted, a denitration device is constructed in a matching way, or other measures for controlling the discharge of atmospheric pollutants such as technical transformation and the like are adopted. The state encourages the above units to adopt advanced denitration cooperative control technology and device, reducing the emission of atmospheric pollutants.
With the stricter emission regulations of compression ignition engine in China, the Nitrogen Oxide (NO) of medium-pressure combustion engine is regulatedx) Emission limits for Hydrocarbon (HC) and CO are becoming lower and lower. A great deal of research has been conducted to reduce the emission of these exhaust gases from motor vehicle exhausts. For example, in the research on the catalytic reduction of nitrogen oxides, the three-way exhaust gas catalyst containing noble metals of Pt, Rh and Pd is used, and the research proves that 76 percent of NO in the automobile exhaust gas can be effectively reducedxConversion, but not the ability to convert NO under oxygen-rich conditionsxReduction to N2Limiting its use. Until 1990, the catalytic process of reducing NO with hydrocarbon on Cu-ZSM-5 molecular sieve catalyst in the presence of oxygen was independently reported by Iwamoto group and Held group, and NO was developedxA new route to catalytic reduction. Catalytic reduction of NO using ethanol in recent yearsxIs also a research subject with great development prospect, and China also has a plurality of scholars in NOxThere have been many significant studies in the field of catalytic conversion, such as research on the use of silver catalysts for the reduction and decomposition of nitrogen oxides by the envelopment and academician groups, and research on Ag/Al by the Hehong group2O3、Ag-Pd/Al2O3Selective catalytic reduction of NO by a catalystxThe Licheng subject group searched for NH for Cr-Mn composite oxide catalysts3Catalytic reduction of NOxThe Poplar topic group explored the use of In/metal sulfate/TiO2NH for catalyst3Catalytic reduction of NOx. Although the research on the catalyst has been completed with abundant research results, the catalyst still has the problems of poor stability, narrow temperature range of catalytic activity, easy influence of other components such as oxygen and water on the activity, high price and the like. For example, in the research on emission reduction of motor vehicle exhaust, people develop ethanol gasoline and clean gasoline and diesel, and the development of clean fuel oil is greatly promoted.
The development of clean fuel oil production process and the addition of clean co-combustion fuel in automobile fuel oil are feasible methods for greatly improving the quality of fuel oil and reducing the emission of harmful gases in motor vehicle tail gas. Alcohol fuels and ether fuels are frequently used, and the alcohol fuels comprise methanol, ethanol and the like, but the alcohol fuels have the defects of low-temperature delamination, water delamination and the like, and have great difficulty in transportation, storage and use; ether fuels comprise dimethyl ether and the like, have low octane number, are gaseous at normal temperature and normal pressure, and are greatly limited in application; and the oil quality is difficult to control by replacing the petroleum fuel with the alcohol fuel and the ether fuel, and the problems of high harmful gas emission, serious environmental pollution and the like in tail gas emission cannot be efficiently solved.
How to more efficiently and stably remove the exhaust emission of the exhaust gas in the automobile exhaust, how to effectively reduce the atmospheric pollution, and how to realize the high-efficiency operation and energy conservation in the production activities of enterprises such as electric coal and the like become a serious test in the aspect of environmental management in China, and a great deal of research is still carried out at present.
Disclosure of Invention
The invention aims to solve the problem of pollutant emission in tail gas of a motor vehicle, and provides an energy-saving emission-reducing agent in a compression ignition enginexAnd HC and CO are reduced, the pollution of the emission of waste gas in the tail gas of the motor vehicle to the atmosphere is greatly reduced, the energy-saving emission-reducing agent has low components, the energy conservation and emission reduction of coal mine production enterprises are realized, and the energy-saving emission-reducing agent has the characteristics of cleanness and environmental protection.
In order to achieve the aim, the invention provides an energy-saving emission-reducing agent in a compression-ignition engine, which comprises the following components in percentage by weight:
50% -30% of polymethoxy dimethyl ether;
20% -30% of a polyoxide;
20% -30% of nitrogen oxide inhibitor;
cosolvent A10%;
wherein the nitrogen oxide inhibitor comprises the following components:
40-30% of a multi-nitrogen compound;
30-40% of urea or melamine;
20% of ethylene glycol;
cosolvent B10%;
the multi-nitrogen compound is a product obtained by diazotization and esterification reaction of o-phenylenediamine and sodium nitrite under an acidic condition;
the polyoxide is 98% tert-butyl peroxide prepared by taking 70% tert-butyl hydroperoxide and benzoyl chloride as raw materials and reacting under the condition of adding saline water and sodium hydroxide.
According to the energy-saving emission-reducing agent provided by the invention, the nitrogen oxide inhibitor is formed by compounding urea or melamine with a multi-nitrogen compound, and the energy-saving emission-reducing agent can play a good denitration role when being applied to an engine, so that the emission of nitrogen oxides in tail gas of a motor vehicle is greatly reduced. Meanwhile, a combustion promoting system consisting of polyoxide and polymethoxy dimethyl ether is adopted, so that the fuel oil can be fully combusted in the engine more efficiently, and comprehensive energy conservation and emission reduction are realized.
The urea is used as a main substance of a catalytic reduction system and can provide ammonia as a reducing agent to remove NO in the exhaust gas of the diesel engine on the surface of an SCR (selective catalytic reduction) catalystxReduction to N2And water, but which also has NO presentxLow-temperature conversion efficiency, sediment generation in an exhaust pipeline, ammonia leakage and the like. And the defect can be well solved by adopting the multi-nitrogen compound for compounding.
Urea as one of the high nitrogen-containing compositions has the formula CO (NH)2)2Relative molecular weight: 60.5, the molecular structure is as follows:
the urea is colorless or white needle-like or rod-like crystal, white slightly reddish solid granule, odorless and tasteless, has nitrogen content of about 46.67%, and density of 1.335g/cm3Melting point 132.7 ℃ and is soluble in water and alcohol. The chemical property of the product is alkalescent, and the product can react with acid to generate salt and has hydrolysis effect; condensation reaction can be carried out at high temperature to generate biuret, triuret and cyanuric acid; when heated to 160 ℃ it decomposes, producing ammonia and at the same time isocyanic acid. Since human urine contains such substances, urea is the highest nitrogen content in the solid nitrogen fertilizer. In the SCR system, urea is utilized and can release ammonia after being pyrolyzed and hydrolyzedApplication of NO in diesel engine exhaust gas on SCR catalyst surface as reducing agentxReduction to N2And water, but at present conversion efficiencies are low.
In addition, the high-nitrogen-containing composition melamine is a nitrogen-containing heterocyclic organic matter with the molecular formula of C3H6N6Relative molecular weight: 126.15, the molecular structure is as follows:
the melamine is pure white monoclinic crystal, is non-flammable, odorless and low-toxic, and has a density of 1.573g/cm3(16 ℃), oxygen content 68%, melting point 354 ℃ under normal pressure, rapid heating for sublimation, sublimation temperature 300 ℃, solubility in water increasing with temperature, at 20 ℃, about 3.3 g/L, solubility in hot water, solubility in polyhydric alcohol and the like, chemical property of the melamine salt being alkalescent (pH 8), and the melamine salt being able to form melamine salt with hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid and the like, condensation with formaldehyde under neutral or slightly alkaline condition to form various methylol melamine, condensation reaction with methylol derivatives under slightly acidic condition (pH 5.5-6.5) to generate resin product, the melamine being heterocyclic organic compound containing the highest nitrogen, and urea having the same molecular functional group-NH2The physical properties of the two are similar, and NH can be provided in the combustion process3And the source realizes the reductive conversion of the nitrogen oxides.
Under the condition that urea or melamine exists in a system, the invention creatively uses a multi-nitrogen compound for compounding, and the multi-nitrogen compound is a product obtained by diazotization and esterification of o-phenylenediamine and sodium nitrite under an acidic condition. The nitrogen content of the multi-nitrogen compound is high, the catalytic reduction process can be promoted, and meanwhile, the oxidation can be inhibited. After the two are compounded, the composite can play a good role in preventing the generation of nitrogen oxides in the combustion process and simultaneously promote the reduction of the generated nitrogen oxides. The compounding of the system not only can not oxidize itself, but also has the inhibition effect on the oxidation, in particularThe nitrogen and oxygen in the intermediate combustion state have higher oxidation resistance in the rapid heating sublimation state. During the combustion process of the urea or the melamine, the urea or the melamine is quickly and efficiently decomposed into ammonia gas, water and carbon dioxide, wherein the ammonia gas (NH)3) As a reducing agent, Nitrogen Oxides (NO) can be promoted by the action of an exhaust gas catalytic reducerx) Changed to nitrogen (N)2) With water (H)2O)。
Polymethoxy dimethyl ether CH3O(CH2O)nCH3(DMMnN is more than or equal to 1 and less than or equal to 8) has the same atomic functional group with normal alkane molecules and is very similar to the normal alkane molecules in physical and chemical properties, and the polymethoxy dimethyl ether respectively replaces one carbon atom and two hydrogen atoms with oxygen atoms to form a structure similar to the normal alkane. The carbon-hydrogen molecular bond is pi bond, so the chemical energy is high, oxygen atom is easy to release, and the method belongs to the action principle of non-free radical. The diesel oil can be fully combusted under the action of promoting the cetane number of the diesel oil, so that the aim of emission reduction is fulfilled. However, since polymethoxy dimethyl ether is a mixture containing DMM as a component1And DMM2The two components have low flash points and low oxygen content compared with other components, but the two components are difficult to remove independently, so the defects exist when the polymethoxy dimethyl ether is used as a fuel oil blending material. The invention compounds polyoxy compound and polymethoxy dimethyl ether, wherein the polyoxy compound takes 70 percent of tert-butyl hydroperoxide and benzoyl chloride as raw materials, 98 percent of tert-butyl peroxide is prepared by reaction under the condition of adding saline and sodium hydroxide, the oxygen content of the polyoxy compound is high, and the polyoxy compound can well solve the problem that the component DMM in the polymethoxy dimethyl ether is good1And DMM2The two are compounded, so that sufficient oxygen can be provided for fuel oil to burn, the mutual promotion and synergistic effect are achieved, and the emission reduction effect on the tail emission of the motor vehicle is obvious.
Since harmful gases generated in exhaust emissions of automobiles are components in the combustion process rather than the fuel itself, the solution of the exhaust emission problem of combustion systems represented by engines is mainly focused on the treatment after combustion. The formula of the energy-saving emission-reducing agent is based on the modification process of fuel, and the liquid emission-reducing agent is mixed into the liquid fuel, so that the aim of reducing the emission of waste gas in tail gas is fulfilled through the coal burning process in a burner. And the selected solvent and the solubilizer both have higher flash points and can be used for adding gasoline and diesel oil. The addition of the solubilizer has the affinity function of high-efficiency oil, alcohol and ether, so that the inhibitor can be completely mutually dissolved with the gasoline component and the diesel component, and the difficulty in application is overcome.
Further, the polymethoxy dimethyl ether is DMMnWherein n is 1-8.
Further, the molar ratio of the tert-butyl hydroperoxide to the benzoyl chloride is 1: 1.
Further, the concentration of the brine was 2 g/L, and the concentration of sodium hydroxide was 5 mol/L.
Furthermore, the purity of the o-phenylenediamine is more than 99.5%, and the purity of the sodium nitrite is more than 99%.
Further, the molar ratio of the o-phenylenediamine to the sodium nitrite is 1.2-1.5: 1.
Further, the acid is concentrated sulfuric acid, the mass fraction of the acid is 98%, and the using amount of the concentrated sulfuric acid is 2.5 times of the molar amount of the o-phenylenediamine.
Further, the reaction temperature of the multi-nitrogen compound is 75-82 ℃, and the reaction temperature of the multi-oxygen compound is 50-60 ℃.
Further, the cosolvent B is a mixture of ethanolamine and n-butanol according to a volume ratio of 1: 1.
Further, the cosolvent A is a mixture of fatty alcohol-polyoxyethylene ether and n-amyl alcohol according to a volume ratio of 2: 1.
Compared with the prior art, the invention has the following beneficial effects:
according to the energy-saving emission-reducing agent provided by the invention, through compounding of various high-nitrogen-containing components and compounding of high-oxygen-containing components, the combustion characteristic of fuel in an engine is fully considered, the defect that a large amount of harmful gas is generated due to insufficient combustion process of the fuel is fundamentally changed, the compounding of various components can play a role in supplementing the oxygen environment required by combustion in the combustion process, and can efficiently prevent nitrogen oxidation and efficiently catalyze nitrogen reduction, the two components are mutually promoted, the functions of each other are increased, and the problem of harmful gas emission in motor vehicle exhaust gas caused by insufficient combustion is more effectively reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments, and it should be noted that the following embodiments are only for explaining and illustrating the present invention and are not intended to limit the present invention. The invention is not limited to the embodiments described above, but rather, may be modified within the scope of the invention.
Example 1
The nitrogen oxide inhibitor was composed of the following raw material formulation in table 1:
TABLE 1
Wherein the cosolvent B is a mixture of ethanolamine and n-butanol according to the volume ratio of 1: 1.
The preparation method of the polynitrogen compound comprises the following steps:
adding a suspension prepared from o-phenylenediamine (99.5%) and 98% concentrated sulfuric acid (the molar ratio of the o-phenylenediamine to the concentrated sulfuric acid is 1:2.5) into a reaction kettle, uniformly stirring, controlling the temperature in a bottle to be 75-82 ℃, then slowly dropwise adding a solution prepared from sodium nitrite (99%) and water through a funnel, violently and mechanically stirring, wherein the dropwise adding time is 1.5h (the dosage of the o-phenylenediamine is 1.2-1.5 times of the molar quantity of the sodium nitrite), continuously stirring and reacting for 20min after the dropwise adding is finished, carrying out cold suction filtration on the obtained precipitate, washing with industrial ethanol and ether in sequence, and carrying out vacuum drying for a period of time to obtain a product, wherein the yield is more than 90%.
The main reaction formula involved in the preparation process is as follows (esterification is a side reaction, the product is few and can be ignored):
the formula of the raw materials of the energy-saving emission-reducing agent is as follows in table 2:
TABLE 2
Wherein the polyoxy compound is 98% of tert-butyl peroxide prepared by taking 70% of tert-butyl hydroperoxide and benzoyl chloride as raw materials (the molar ratio is 1:1) and reacting with 80-90 ℃ under the condition of adding saline (the concentration is 2 g/L) and sodium hydroxide (the concentration is 5 mol/L), and the cosolvent A is a mixture of fatty alcohol polyoxyethylene ether and n-amyl alcohol according to the volume ratio of 2: 1.
Comparative example 1
An energy-saving emission-reducing agent removes multi-nitrogen compounds in a component nitrogen oxide inhibitor, wherein the proportion of melamine, glycol and cosolvent in the inhibitor is 70: 20: 10.
comparative example 2
An energy-saving emission-reducing agent is used for removing a component polyoxide, wherein the ratio of polymethoxy dimethyl ether, a nitrogen oxide inhibitor and a cosolvent in the energy-saving emission-reducing agent is 70: 20: 10.
experimental example 1
The energy-saving emission-reducing agents (1-3) in the table 2 and the comparative examples 1-2 are used for combustion tests of the engine, the agents are respectively added into a combustion chamber of the engine for combustion, the emission performance of the engine at a working condition point corresponding to 2400r/min load characteristics is tested, and the model of the engine is DK4A type diesel engine for scientific research. The dosage of the energy-saving emission-reducing agent accounts for 3 per mill of the total weight of the vehicle fuel, the vehicle fuel adopts 0# diesel oil and NO of an engine tail gas discharge portxAnd HC and CO emission are monitored in real time and compared with a test without adding an energy-saving emission-reducing agent. The change of the emission of each emission after the energy-saving emission-reducing agent is added is measured by the test and is shown in table 3:
TABLE 3
As can be seen from Table 3, the emission of each waste gas in the tail gas of the diesel vehicle is greatly reduced after the energy-saving emission-reducing agent is added.
Claims (10)
1. The energy-saving emission-reducing agent in the compression-ignition engine is characterized by comprising the following components in percentage by weight:
50% -30% of polymethoxy dimethyl ether;
20% -30% of a polyoxide;
20% -30% of nitrogen oxide inhibitor;
cosolvent A10%;
wherein the nitrogen oxide inhibitor comprises the following components:
40-30% of a multi-nitrogen compound;
30-40% of urea or melamine;
20% of ethylene glycol;
cosolvent B10%;
the multi-nitrogen compound is a product obtained by diazotization and esterification reaction of o-phenylenediamine and sodium nitrite under an acidic condition;
the polyoxide is 98% tert-butyl peroxide prepared by taking 70% tert-butyl hydroperoxide and benzoyl chloride as raw materials and reacting under the condition of adding saline water and sodium hydroxide.
2. The internal energy-saving emission-reducing agent for the compression-ignition engine as claimed in claim 1, wherein the polymethoxy dimethyl ether is DMMnWherein n is 1-8.
3. The internal energy-saving emission-reducing agent for the compression-ignition engine according to claim 1, wherein the molar ratio of the tert-butyl hydroperoxide to the benzoyl chloride is 1: 1.
4. The energy-saving emission-reducing agent in a compression ignition engine as claimed in claim 1, wherein the concentration of the brine is 2 g/L, and the concentration of the sodium hydroxide is 5 mol/L.
5. The internal energy-saving emission-reducing agent for a compression ignition engine according to claim 1, wherein the purity of the o-phenylenediamine is 99.5% or more, and the purity of the sodium nitrite is 99% or more.
6. The internal energy-saving emission-reducing agent for the compression ignition engine according to claim 1, wherein the molar ratio of the o-phenylenediamine to the sodium nitrite is 1.2-1.5: 1.
7. The internal energy-saving emission-reducing agent for the compression-ignition engine according to claim 1, wherein the acid is concentrated sulfuric acid, the mass fraction of the acid is 98%, and the using amount of the concentrated sulfuric acid is 2.5 times of the molar amount of o-phenylenediamine.
8. The internal energy-saving emission-reducing agent for the compression-ignition engine according to claim 1, wherein the reaction temperature of the multi-nitrogen compound is 75-82 ℃, and the reaction temperature of the multi-oxygen compound is 50-60 ℃.
9. The internal energy-saving emission-reducing agent for the compression-ignition engine according to claim 1, wherein the cosolvent B is a mixture of ethanolamine and n-butanol in a volume ratio of 1: 1.
10. The internal energy-saving emission-reducing agent for the compression-ignition engine as claimed in claim 1, wherein the cosolvent A is a mixture of fatty alcohol-polyoxyethylene ether and n-amyl alcohol in a volume ratio of 2: 1.
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