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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • 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
  • C10L1/224—Amides; Imides carboxylic acid amides, imides
• • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
  • C10L1/2462—Organic compounds containing sulfur, selenium and/or tellurium macromolecular compounds
  • C10L1/2475—Organic compounds containing sulfur, selenium and/or tellurium macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon to carbon bonds
  • C10L1/2487—Organic compounds containing sulfur, selenium and/or tellurium macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon to carbon bonds polyoxyalkylene thioethers (O + S 3=)
• • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/26—Organic compounds containing phosphorus
  • C10L1/2633—Organic compounds containing phosphorus phosphorus bond to oxygen (no P. C. bond)
  • C10L1/2641—Organic compounds containing phosphorus phosphorus bond to oxygen (no P. C. bond) oxygen bonds only
• • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal

Definitions

• the invention relates to a method for preventing or reducing deposits in mixture preparation systems of engines, in which alcohol fuels are used in conjunction with lubricants that are suitable for engines operated with hydrocarbon fuels, by adding polyol ether (s) to the alcohol fuels.
• Alcohols especially methanol and ethanol, have been intensively investigated as alternative fuels or fuel components for several years (see, for example, EP-A-0 166 096).
• the effect according to the invention was surprising and unpredictable in particular because the polyol ether is only contained in the fuel in a small amount and is mixed with air in a very fine distribution inside, for example a carburetor or an injection device.
• the polyol ethers are used in amounts of 15 ppm to 1% by weight, based on the total fuel, preferably from 15 ppm to ⁇ 2000 ppm and particularly preferably from 30 ppm to ⁇ 2000 ppm.
• the substituents R1 and R2 are preferably H and / or CH3, but can also be higher alkyl groups from C2 to C8 and aryl groups.
• the groups R and R3 were mentioned above.
• the groups H, alkyl, aryl and carboxy groups are preferred for R.
• the polyol ether groups are selected so that the polyol ethers are soluble in the respective alcohol or mixture.
• Preferred fuels for the use mentioned above are fuels which contain 0.1 to 25 vol.%, Preferably 1 to 25 vol.% And particularly preferably 2 to 25 vol.% Hydrocarbons and 75 to 99.9 vol.%, Preferably 75 to 99 % By volume and particularly preferably 75 to 98% by volume of methanol and / or ethanol and / or any mixtures of methanol and ethanol, the hydrocarbons added preferably being C4 to C x hydrocarbons, where x is the number of carbon atoms in the hydrocarbons corresponds to the upper limit of petrol-hydrocarbons.
• the alcohols can also be hydrocarbon-free.
• the lubricating oils used are generally in a separate lubricating oil circuit, but can also be added to the fuels. Very good results are obtained, for example, with fuels based on methanol or ethanol or mixtures thereof which contain 0.1 to 15% by weight, preferably 2 to 15% by weight, of C4 / C5 or C4 to C6 hydrocarbons , in the case of methanol up to 15% by weight of water and in the case of ethanol up to 25% by weight of water in the fuel and the C4 / C5 or the C4: C5 / C6 ratio 1: 500 parts by weight to 3: 1 parts by weight, preferably 1: 1 to 1:20.
• hydrocarbon additives that contain, for example, little or no C Trust-hydrocarbons, such as summer gasoline, light gasoline cuts, platform cuts, pyrolysis gasoline cuts, Merox gasoline cuts, alkylation and polymer gasoline cuts, etc.
• the alcohols can be pure or raw alcohols.
• pure as well as raw methanol or topped methanol can be used, as well as distilled, anhydrous or azeotropic ethanol or ethanol, which can contain even more water and impurities, e.g. arises in the production of bioethanol.
• the fuels used can also contain additional aromatics, for example C6-C8 aromatics or so-called platformat and additives on ethers such as dimethyl ether, tert-alkyl ether, for example methyl tert-butyl or amyl ether, and also ketones, for example acetone and other oxygen-containing compounds.
• Additional alcohols such as all isomers of C3-C10 alcohols, especially C3 and C4 alcohols, may also be included. Refinery cuts in the corresponding boiling range are very suitable as added hydrocarbons, so C4, C5, C6, C7 hydrocarbons as well as gasolines and their combinations can be used.
• Corrosion inhibitors can be, for example, the following compounds and their derivatives or mixtures thereof or mixtures which contain the following compounds, their derivatives or mixtures thereof, the compounds mentioned being to be understood as examples without the naming of them being a limitation: Imidazoline derivatives, glycylamides, aliphatic mono-, di- and polyamines and their N-substituted derivatives, ethylenediamine, succinic acid, alkenylsuccinic acid and polymers thereof, alkanolamines, monomers and polymers of unsaturated aliphatic carboxylic acids, such as, for example, of oleic acid and linoleic acid, aliphatic dicarboxylic acids 2, oxalic acids 0 -Dicarboxylic acids, polyalkylene polyamines, triazoles, aminotriazoles, triazolines, aminotri
• a VW Jetta with a 90 HP engine was operated with a fuel in normal driving as well as in extreme driving with very high summer and very low winter temperatures (approx. 35 ° C + or - 30 ° C) as well as in cold and short distance operation , which contained 90% by weight of methanol and 10% by weight of C4-hydrocarbons + light petrol and a corrosion inhibitor which contained an amphoteric nitrogen-containing condensation product and, according to the invention, 200 ppm and 500 ppm of the polyol ether.
• a commercial product of class SAE 15 W 40 was used as the lubricant.
• the carburetor was checked for deposits every 2500 km. Even after a total of 25,000 km, the carburetor was completely clean. No deposits were found.
• the same fuel without polyol ether was used for comparison. Deposits in the throttle valve area were found in the carburetor after the test was completed.
• the present invention represents an important improvement in the field of alcohol fuels.
• the experiments show that the addition of the polyol ethers according to the invention means that conventional, commercially available lubricants can be used in engines operated with alcohol fuels instead of lubricants specially produced for such engines.

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)
• Emergency Medicine (AREA)
• Health & Medical Sciences (AREA)
• Liquid Carbonaceous Fuels (AREA)
• Lubricants (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Detergent Compositions (AREA)
• Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
• Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
• Accessories For Mixers (AREA)
• Combustion Methods Of Internal-Combustion Engines (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Superconductive Dynamoelectric Machines (AREA)
• Cephalosporin Compounds (AREA)
• Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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ID=6325221

Family Applications (1)

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• 1987
  • 1987-04-09 DE DE19873711985 patent/DE3711985A1/de active Granted
• 1988
  • 1988-03-29 ZA ZA882249A patent/ZA882249B/xx unknown
  • 1988-03-31 EP EP88105287A patent/EP0289785B1/de not_active Expired - Lifetime
  • 1988-03-31 AT AT88105287T patent/ATE64948T1/de not_active IP Right Cessation
  • 1988-03-31 ES ES88105287T patent/ES2004848B3/es not_active Expired - Lifetime
  • 1988-03-31 DE DE8888105287T patent/DE3863477D1/de not_active Expired - Lifetime
  • 1988-04-05 US US07/177,623 patent/US5024678A/en not_active Expired - Fee Related
  • 1988-04-07 NO NO881505A patent/NO881505L/no unknown
  • 1988-04-08 FI FI881637A patent/FI881637L/fi not_active IP Right Cessation
  • 1988-04-08 PL PL27172088A patent/PL271720A1/xx unknown
  • 1988-04-08 DD DD88314559A patent/DD284687A5/de not_active IP Right Cessation
  • 1988-04-08 JP JP63085562A patent/JPS649294A/ja active Pending
  • 1988-04-09 CN CN88102090A patent/CN1030253A/zh active Pending
  • 1988-04-11 AU AU14543/88A patent/AU602569B2/en not_active Ceased
• 1989
  • 1989-06-22 GR GR88300184T patent/GR880300184T1/el unknown

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