EP1196515B1 - Engine fuels consisting of an emulsion comprising mineral and/or natural oils, their preparation and use in internal combustion engine - Google Patents
Engine fuels consisting of an emulsion comprising mineral and/or natural oils, their preparation and use in internal combustion engine Download PDFInfo
- Publication number
- EP1196515B1 EP1196515B1 EP99936473A EP99936473A EP1196515B1 EP 1196515 B1 EP1196515 B1 EP 1196515B1 EP 99936473 A EP99936473 A EP 99936473A EP 99936473 A EP99936473 A EP 99936473A EP 1196515 B1 EP1196515 B1 EP 1196515B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- mineral
- fuel according
- natural
- biooil
- 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.)
- Expired - Lifetime
Links
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
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/328—Oil emulsions containing water or any other hydrophilic phase
Definitions
- the present invention refers to new fuels representing an interesting alternative to the common fossil fuels being constituted of pyrolysis liquid emulsified with natural and/or mineral oils in the presence of emulsifiers and possibly co-emulsifiers.
- the invention refers also to the use of the above said fuels in internal combustion engines.
- Possible substitutes of the common fossil fuels are in principle the liquids obtained by pyrolysis of biomass since they have a very low content of sulphur and therefore can be burnt without problem for the environment.
- oils obtained by pyrolysis contain a large amount of water (and also of acidic derivatives), are hard to ignite and present a low calorific value when compared to the fossil oils; therefore their use as such is practically impossible.
- EP-A-893 488 describes fuels in the form of pyrolysis liquid-in-diesel oil microemulsions consisting of diesel oil, pyrolysis liquid and at least an emulsifier with HLB between 4 and 18 derived from fatty acids and polyoxyethylene glycol, or fatty acids, sorbitol and polyoxyethylene or polyethoxylated alcohols with long aliphatic chains.
- the pyrolysis oil suitable for the preparation of the claimed microemulsions must have a limited content of water, they require the formation of microemulsions and their stability strongly depends on temperature.
- the present invention allows one to overcome the above said problems through the use of fuels consisting of emulsions of pyrolysis liquids, natural and/or mineral oils with emulsifiers and possibly co-emulsifiers capable of forming oil-in-water, water-in-oil emulsions or bicontinuous emulsions, wherein the definition emulsion does not include microemulsions.
- a pyrolysis liquid (or biooil) according to the invention is the oil obtained by burning organic materials deriving from different sources and technologies according to the known techniques.
- oils normally have a content of water comprised between 20 - 45% by weight and a pH of 2,3 - 3,4.
- Mineral oils are the normal oils of fossil origin like, for example, gasoline, diesel, kerosene etc.
- Natural oils are the oils normally deriving as by-products from the treatment of vegetables and other oil containing natural products.
- the emulsifiers play the essential role for the preparation of the fuels according to the invention.
- Preferred emulsifiers of the fist group mentioned here above are:
- Preferred emulsifiers of the second group mentioned here above are:
- Quaternary ammonium compounds as defined here above are preferably monoalkyl or di-alkyl ammonium chloride surfactants wherein the alkyl chains have from C8 to C22.
- the surfactants are normally added in a quantity up to 3% by weight, calculated on the total of the emulsion.
- the use of the above said emulsifier allows to emulsify oils having a water content of 20- 50%, moreover they allow the manufacture of fuels containing biooil in a range of 5 - 95% by weight calculated on the total fuel.
- the fuel according to the invention present an exceptionally high stability (more than one month), their stability can even be improved by adding suitable co-surfactants.
- non ionic surfactants can be used according to the known techniques in order to adjust the emulsifier HLB value, and to improve the time stability of the resulting emulsion.
- the co-surfactants are normally added in quantity comprised between 0,05 - 1,0% by weight calculated on the total weight of the fuel.
- the fuels can be prepared in three different kind of emulsion:
- the water-in-oil emulsions are prepared by adding a surfactant of the first group indicated above to hot mineral or natural oil and thereafter adding the biooil to the resulting mixture.
- Bicontinuous emulsions were formulated by adding a surfactant of the first group to the mineral or natural oil, and to the biooil and then mixing together the resulting mixtures.
- Oil-in-water emulsions were formulated by adding to the biooil a surfactant (which can be chosen both in the first or the second of the above-described groups) and thereafter adding to the resulting mixture the natural or mineral oil during emulsification.
- a surfactant which can be chosen both in the first or the second of the above-described groups
- the emulsification process was carried out by using a homogeniser.
- the temperature during mixing was preferably maintained between 60 - 65°C and the emulsification was continued until a homogeneous single phase was obtained.
- the emulsions are obtained at room temperature, too.
- Pyrolysis oils was obtained from DynaMotive Technologies Corporation (Canada) and ENEL (Italy). In table 1 are showed the characteristics of two different employed biooils. Moisture content (%) 24.5 44.0 Ash (%) 0.03 0.28 Density (kg/l) 1.199 1.165 Viscosity (mPa s) @20°C 55 10 @50°C 11 4 Elemental Carbon 43.52 34.96 Hydrogen 6.31 5.94 Nitrogen 0.07 0.11 Sulphur 0.0 0.0 Oxygen (diff.) 50.07 58.71 HHV (MJ/kg) 16.9 16.5 Ph 2.4 3.0
- Table 2 shows some formulations (one of each case) of prepared emulsions.
- the surfactant Atlox 4912 is a polyester/ether/ester block copolymer available from UNIQEMA.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Lubricants (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Description
- non-ionic block-copolymers (or homopolymers) surfactants having HLB from 4 to
18 possibly in combination with non ionic surfactants (co-surfactants) with HLB
from 4 to 18
and - anionic block-copolymers (or homopolymers) surfactants having HLB 4 to 18 possibly in combination with cationic quaternary ammonium compounds.
bicontinuous emulsion presenting a biooil/mineral or natural oil ratio of 45 - 55% (w/w)
oil-in-water emulsion presenting a biooil/mineral or natural oil ratio of 55 - 99% w/w.
Moisture content (%) | 24.5 | 44.0 |
Ash (%) | 0.03 | 0.28 |
Density (kg/l) | 1.199 | 1.165 |
Viscosity (mPa s) | ||
@20°C | 55 | 10 |
@50°C | 11 | 4 |
Elemental | ||
Carbon | 43.52 | 34.96 |
Hydrogen | 6.31 | 5.94 |
Nitrogen | 0.07 | 0.11 |
Sulphur | 0.0 | 0.0 |
Oxygen (diff.) | 50.07 | 58.71 |
HHV (MJ/kg) | 16.9 | 16.5 |
Ph | 2.4 | 3.0 |
Bio-Fuel (wt%) | Diesel (wt%) | Atlox 4912 (wt%) |
25 | 74 | 1 |
49.5 | 49.5 | 1 |
75 | 24 | 1 |
Claims (13)
- Pyrolysis oil containing fuel consisting of an emulsions of pyrolysis liquids and natural and/or mineral oils with emulsifiers and possibly co-emulsifiers capable of forming oil-in-water, bicontinuous or water-in-oil emulsions, wherein the definition emulsion does not include microemulsions.
- Pyrolysis oil containing fuels according to Claim 1 wherein the emulsifiers are chosen in the group consisting of:non-ionic block-copolymers (or homopolymers) surfactants having HLB from 4 to 18 possibly in combination with non ionic surfactants with HLB from 4 to 18
andanionic block-copolymers (or homopolymers) surfactants having HLB 4 to 18. - Pyrolysis oil containing fuel according to Claim 2 wherein the content in surfactant is up to 3% by weight calculated on the total of the emulsion.
- Pyrolysis oil containing fuels according to Claim 2 wherein the fuels is represented by a water-in-oil emulsion presenting a biooil/mineral or natural oil ratio of 1 - 45% (w/w).
- Process for preparing a fuel according to claim 4 wherein a surfactant of the first group indicated in Claim 2 is added to mineral or natural oil and thereafter the biooil is added to the resulting mixture using a homogeniser.
- Pyrolysis oil containing fuel according to Claim 2 wherein the fuel is represented by a bicontinuous emulsion presenting a biooil/mineral or natural oil ratio of 45 - 55%(w/w).
- Process for preparing a fuel according to claim 6 wherein a surfactant of the first group indicated in Claim 2 is added to mineral or natural oil and to the biooil and then mixing the resulting mixtures together using an homogeniser.
- Pyrolysis oil containing fuel according to Claim 2 wherein the fuel is represented by an oil-in-water emulsion presenting a biooil/mineral or natural oil ratio of 55 - 99% w/w.
- Process for preparing fuel according to claim 8 wherein an emulsifier (which can be chosen both in the first or the second of the above-described groups) is added to the biooil and thereafter the natural or mineral oil is added to the resulting mixture during emulsification.
- Pyrolysis oil containing fuel according to claim 1 containing also a co-emulsifier chosen between non ionic surfactants having HLB from 4 to 18.
- Pyrolysis oil containing fuel according to claim 10 wherein the co-emulsifier is contained in quantity comprised between 0,05 and 0,5% w/w.
- Pyrolysis oil containing fuel according to Claim 1 wherein the pyrolysis oil content is comprised between 55 and 99% (by weight).
- Use of a fuel according to Claim 2 in internal combustion engines.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP1999/004607 WO2001002516A1 (en) | 1999-07-02 | 1999-07-02 | Engine fuels consisting of an emulsion comprising mineral and/or natural oils, their preparation and use in internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196515A1 EP1196515A1 (en) | 2002-04-17 |
EP1196515B1 true EP1196515B1 (en) | 2003-02-19 |
Family
ID=8167354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936473A Expired - Lifetime EP1196515B1 (en) | 1999-07-02 | 1999-07-02 | Engine fuels consisting of an emulsion comprising mineral and/or natural oils, their preparation and use in internal combustion engine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1196515B1 (en) |
CN (1) | CN1357031A (en) |
AT (1) | ATE232899T1 (en) |
AU (1) | AU5156299A (en) |
DE (1) | DE69905504T2 (en) |
WO (1) | WO2001002516A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011120542A1 (en) | 2010-04-01 | 2011-10-06 | Caterpillar Motoren Gmbh & Co. Kg | Pyrolysis oil containing fuel, method for preparing the fuel and use thereof an internal combustion engine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004090080A1 (en) * | 2003-04-09 | 2004-10-21 | Aquafuel Research Limited | Fuel emulsion compositions |
DE10334897A1 (en) * | 2003-07-29 | 2005-03-10 | Univ Koeln | Microemulsions and their use as fuel |
GB0616298D0 (en) | 2006-08-16 | 2006-09-27 | Univ Aston | Biomass pyrolysis |
EP2253692A1 (en) * | 2009-05-19 | 2010-11-24 | Universität zu Köln | Bio-hydrofuel compounds |
CN107353949A (en) * | 2017-09-12 | 2017-11-17 | 农业部规划设计研究院 | A kind of compound method of bio oil/diesel emulsion liquid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6302929B1 (en) * | 1994-04-04 | 2001-10-16 | Rudolf W. Gunnerman | Aqueous fuel for internal combustion engine and method of preparing |
US5820640A (en) * | 1997-07-09 | 1998-10-13 | Natural Resources Canada | Pyrolysis liquid-in-diesel oil microemulsions |
-
1999
- 1999-07-02 WO PCT/EP1999/004607 patent/WO2001002516A1/en active IP Right Grant
- 1999-07-02 AT AT99936473T patent/ATE232899T1/en not_active IP Right Cessation
- 1999-07-02 EP EP99936473A patent/EP1196515B1/en not_active Expired - Lifetime
- 1999-07-02 DE DE69905504T patent/DE69905504T2/en not_active Expired - Fee Related
- 1999-07-02 CN CN99816779.7A patent/CN1357031A/en active Pending
- 1999-07-02 AU AU51562/99A patent/AU5156299A/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011120542A1 (en) | 2010-04-01 | 2011-10-06 | Caterpillar Motoren Gmbh & Co. Kg | Pyrolysis oil containing fuel, method for preparing the fuel and use thereof an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
AU5156299A (en) | 2001-01-22 |
DE69905504T2 (en) | 2003-12-11 |
EP1196515A1 (en) | 2002-04-17 |
DE69905504D1 (en) | 2003-03-27 |
WO2001002516A1 (en) | 2001-01-11 |
ATE232899T1 (en) | 2003-03-15 |
CN1357031A (en) | 2002-07-03 |
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