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Low-molecular weight polyisobutyl-substituted amines as detergent boosters

A technology of polyisobutyl monoamine and polyisobutyl, which is applied in the field of polyisobutylphenol, Mannich adducts of aldehydes and polyamines, gasoline fuel composition, and can solve the problem of low completeness and gasoline consumption increase, content increase, etc.

Inactive Publication Date: 2015-06-17
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These residues alter the air / fuel ratio at idle and in the lower part load region, making the mixture richer and less complete in combustion, leading to an increased content of unburned or partially burned hydrocarbons in the exhaust and gasoline increased consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2

[0125] Examples 1 and 2: Detection of Inlet Valve Deposits ("IVD")

[0126] Inlet valve deposits were determined according to test procedure CEC F-05-A-93 (Examples 1a and 1b) in a gasoline-operated internal combustion engine of the Mercedes Benz M102E type and in a Mercedes Benz M111 internal combustion engine according to the test procedure CEC F-20- A-98 (Examples 2a and 2b) detected. Regular Eurosuper petrol according to EN228 was used as base fuel. The deposits on the four valves of the engine were detected and the average value was calculated.

[0127] Use the following additives:

[0128] A1: Polyisobutyl monoamine based on having a methylvinylidene content of 80 mol% and M N =1000 highly reactive polyisobutene, subjected to hydroformylation and subsequent reductive amination with ammonia

[0129] B1: polyether carrier oil obtained from tridecane and 22 moles of butylene oxide

[0130] C1: polyisobutyl monoamine based on having a methylvinylidene content of 80 mol%...

Embodiment 1a

[0131] Embodiment 1a (comparison):

[0132] A Mercedes Benz M102E engine was operated for 60 hours according to CEC F-05-A-93 on Eurosuper gasoline fuel containing 300 ppm by weight Al and 75 ppm by weight B1. As a result, the following IVD values ​​were obtained: 12 mg, 20 mg, 67 mg, 8 mg; average value: 21 mg. The same test was carried out without any additives and an average IVD value of 153 mg was obtained.

Embodiment 1b

[0133] Embodiment 1b (according to the present invention):

[0134] The same Mercedes Benz M102E engine was operated for 60 hours according to CEC F-05-A-93 with Eurosuper gasoline fuel containing 300 ppm by weight Al, 75 ppm by weight B1 and 50 mg Cl. As a result, the following IVD values ​​were obtained: 3 mg, 0 mg, 12 mg, 10 mg; average value: 6 mg.

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Abstract

A fuel additive composition comprising (A) polyisobutyl-based nitrogen-containing dispersants with MN of the polyisobutyl group of from 650 to 1800 Dalton, (B) carrier oils substantially free of nitrogen and (C) polyisobutyl-based dispersant boosters with MN of the polyisobutyl group of from 200 to 650 Dalton, with the proviso that the difference between the MN of the polyisobutyl group of component (A) and the MN of the polyisobutyl group of component (C) is more than 100 Dalton. Said component (C) is especially useful as an intake valve clean-up booster in gasoline-operated port fuel injection internal combustion engines.

Description

[0001] describe [0002] The present invention relates to a novel fuel additive composition comprising: (A) a nitrogen-containing dispersant selected from the group consisting of polyisobutyl monoamines, polyisobutyl polyamines, polyisobutylphenols, aldehydes and monoamines and Mannich adducts of polyisobutylphenol, aldehydes, and polyamines; (B) a substantially nitrogen-free carrier oil selected from the group consisting of synthetic carrier oils and mineral carrier oils; and (C) A dispersant accelerator selected from low molecular weight polyisobutyl monoamines, polyisobutyl polyamines, polyisobutylphenols, Mannich adducts of aldehydes and monoamines, and polyisobutyl Mannich adducts of phenols, aldehydes and polyamines. Furthermore, the present invention relates to gasoline fuel compositions containing minor amounts of said fuel additive compositions. Furthermore, the invention relates to the use of these low molecular weight polyisobutyl-substituted amines as dispersant ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/222C10L1/238
CPCC10L1/1985C10L1/221C10L1/2222C10L1/238C10L1/2383C10L1/222
Inventor A·郎格P·施赖尔R·S·格蕾丝
Owner BASF SE