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
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
• • 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
• • 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
  • C10L1/12—Inorganic compounds
  • C10L1/1291—Silicon and boron containing 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
  • 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
  • C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-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
  • C10L1/22—Organic compounds containing nitrogen
  • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
  • C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
• • 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
  • C10L1/232—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring

Definitions

• gasoline / alcohol mixtures as fuels for gasoline engines, in particular automobiles.
• Such fuels can e.g. B. from 8o - 99 parts by volume of gasoline (hydrocarbons) and 2o - 1 parts by volume of alcohol, such as methanol and / or ethanol.
• alcohol or a mixture consisting predominantly of alcohol e.g. B. methanol, or the z. B. up to 40 parts by volume of hydrocarbons are added to use as fuels.
• Such mixtures generally contain only a little water (1.5 - 4%). Nevertheless, such alcohols or their mixtures with hydrocarbons cause corrosion problems, e.g. B.
• the invention relates to phosphorus-free corrosion inhibitors for fuels containing a mixture of benzotriazole and / or derivatives of benzotriazole and tolyltriazole and / or derivatives of tolyltriazole, sodium boroheptonate and an alkylene oxide addition product of primary or secondary Aminen.Aethylenglycol and / or methanol and / or ethanol, may preferably also be included, but also other mono-, di- and polyalcohols such as C1 - C20 - alcohols, propylene glycol, butylene glycols, glycerol and others. Very suitable alkene oxides are ethylene oxide, propene oxide and their mixtures.
• Talgaminopropylamine is preferably used as the amine and reacted with 25-30 mol of ethylene oxide, but other primary and secondary amines are also very suitable according to the invention, in particular longer-chain amines, di- and polyamines, also with branches.
• a typical corrosion inhibitor according to the invention contains, for example, benzotriazole and tolyltriazole, sodium boroheptonate, an ethylene oxide addition product of primary and / or secondary amines, ethylene glycol and methanol and / or ethanol as a solvent.
• These corrosion inhibitors can be easily dissolved in fuels and have a corrosion-preventing effect that is comparable to and partially superior to that of the phosphorus-containing inhibitors. They can be used in particular for automotive fuels with catalytic converters. Such fuels can contain, for example, 80% by volume of hydrocarbons, 1-10% by volume of ethanol, 1 to 10% by volume of methanol and 1 to 10% by volume of tert-butanol, and they can also be, for example, fuels which about 80-99% by volume of methanol and / or ethanol, and about 1-20% by volume of hydrocarbons, and 50-500 ppm (based on the alcohol content) of a corrosion inhibitor according to claims 1-8 or containing about 80- 99 vol .-% of an alcohol mixture consisting of at least 2 alcohols from the group of aliphatic C1 - C18 - alcohols, and about 1 - 20 vol .-% hydrocarbons and 50 - 500 ppm (based on the alcohol content) of a corrosion inhibitor according to the claims
• the corrosion inhibitors are used in amounts of 50-500 ppm (based on the alcohol content), preferably in amounts of 50-300 ppm and particularly preferably 60-120 ppm.
• the corrosion inhibitors preferably contain the various synergistic active ingredients in the following proportions: a mixture of benzotriazole or derivative and tolyltriazole or derivative in an amount of 10-15% by weight, sodium boroheptonate in an amount of 5-6% by weight, an adduct of ethylene oxide with tallow aminopropylamine (25-30 moles of ethylene oxide per Mol of amine), which also has a dispersing action, in an amount of 3 to 12% by weight and ethylene glycol, which also serves as a solvent, in an amount of 35 to 45% by weight. All in z.
• Active ingredients dissolved in methanol or ethanol together make up, for example, an amount of 60 to 65% by weight.
• weight ratios are also suitable according to the invention.
• the various components of the corrosion inhibitors can simply be mixed together. In order to obtain a clear solution of the active ingredients in as little methanol or ethanol as possible, it is advisable, for example, without this process being necessary, first of all only a part of the mixture of benzotriazole and tolyltriazole (e.g. 8 parts and 2 parts), sodium boroheptonate ( 4 parts) and ethylene glycol (30 parts) in anhydrous methanol or ethanol (3o parts) to dissolve the ethylene oxide addition product of Add tallow aminopropylamine to this basic mixture and add further portions of the previously mentioned active ingredients, as well as methanol or ethanol, to the desired concentration.
• the basic mixture consists of 30 g ethylene glycol, 4 g sodium boroheptonate, 30 g raw methanol, 8 g benzotriazole and 2 g tolyltriazole.
• the basic mixture consists of 35g propylene glycol, 5g sodium boroheptonate, 3og ethanol, 8g 5-aminobenzotriazole and 3g tolyltriazole. 2 g of an ethylene propylene mixed oxide adduct of tallow aminopropylamine (25 moles of alkene oxide) are added to 8 g of this basic mixture.
• a corrosion inhibitor contains: 22% by weight of the mixture contained 11 wt% benzotriazole 4% by weight sodium boroheptonate 32% by weight propylene glycol 31% by weight ethanol
• the corrosion inhibitor corresponds to Example 4, but the adduct consists of octadecylamine and 26 moles of propylene oxide.

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)
• Preventing Corrosion Or Incrustation Of Metals (AREA)
• Liquid Carbonaceous Fuels (AREA)
• Anti-Oxidant Or Stabilizer Compositions (AREA)
• Lubricants (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6305718

Family Applications (1)

Country Status (12)

Cited By (1)

Families Citing this family (2)

Citations (10)

Family Cites Families (1)

• 1986
  • 1986-07-22 DE DE19863624767 patent/DE3624767A1/de not_active Withdrawn
• 1987
  • 1987-07-15 ES ES87110212T patent/ES2002250A4/es active Pending
  • 1987-07-15 EP EP87110212A patent/EP0263925A1/fr not_active Withdrawn
  • 1987-07-17 ZA ZA875282A patent/ZA875282B/xx unknown
  • 1987-07-20 NO NO873027A patent/NO873027L/no unknown
  • 1987-07-21 DK DK380987A patent/DK380987A/da unknown
  • 1987-07-21 AU AU75988/87A patent/AU7598887A/en not_active Abandoned
  • 1987-07-21 NZ NZ221139A patent/NZ221139A/xx unknown
  • 1987-07-21 DD DD87305196A patent/DD261371A5/de not_active IP Right Cessation
  • 1987-07-22 CN CN198787104997A patent/CN87104997A/zh active Pending
  • 1987-07-22 JP JP62181271A patent/JPS6366291A/ja active Pending
• 1988
  • 1988-05-20 GR GR88300061T patent/GR880300061T1/el unknown

Patent Citations (10)

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