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Ethoxylated surfactants for water in oil emulsions

a technology of oil emulsion and surfactants, which is applied in the petroleum industry, liquid carbonaceous fuels, explosives, etc., can solve the problems of difficult to reach and maintain stable water in fuel emulsions of a small particle size, methods are typically expensive or complicated to be readily commercially available, and the emulsion is generally unstabl

Inactive Publication Date: 2007-05-31
THE LUBRIZOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0026] The water in oil emulsion provides good emulsion stability. The additive package allows for the water in oil emulsion to be processed more easily. Further the emulsion has increased storage stability. The water in oil composition is useful as a fuel for stationary and / or combustion engines and / or open flame burning apparatus.

Problems solved by technology

Internal combustion engines, especially diesel engines, using water fuel blends results in the combustion chamber producing lower nitrogen oxides (NOx), hydrocarbons and particulate matter emissions.
NOx emissions have become an important environmental issue because it contributes to smog and air pollution.
These methods are typically expensive or complicated to be readily commercially available.
When water is added to the fuel it forms an emulsion and these emulsions are generally unstable.
Stable water in fuel emulsions of a small particle size are difficult to reach and maintain.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific embodiments

Example 1

[0075] A fuel emulsion is prepared by mixing about 13 g of de-ionised water, about 84.5 g of a commercially available diesel containing less than 50 ppm of sulphur, about 0.523 g of 2300 MW polyisobutylene succinic acid, about 0.06 g of diethyl ethanolamine, about 0.562 g of tallow amine 7 mole ethoxylate, about 0.305 g of 2-ethylhexylnitrate and about 1 g of diluent oil. The mixture is sheared by mixing in an Ultra Turrax T25B rotor-stator mixer for about 3 minutes.

example 2

[0076] The emulsion is the same as Example 1 except the emulsion additionally contains about 0.12 g of aqueous ammonium nitrate with about 54% actives in solution.

example 3

[0077] The emulsion is the same as Example 1 except the amounts of the following components in the emulsion are different, about 0.293 g of 2300 MW polyisobutylene succinic acid, about 0.0349 of diethyl ethanolamine and about 0.943 g of tallow amine 7 mole ethoxylate and about 0.04 g of ammonium nitrate is added and the emulsion is sheared for about 30 seconds.

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PUM

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Abstract

The invention relates to an emulsified water in oil composition using a novel additive surfactant package containing a PIBSA-derived surfactant with a molecular weight in the ranged about 300 to 3000 and in the range of about 0.01% to about 10% by weight of the composition and an alkylamine ethoxylated surfactant in the range of about 0.01% to about 10% by weight of the composition.

Description

RELATED APPLICATION [0001] This is a continuation in part of U.S. Ser. No. 18 / 319668 filed on Dec. 13, 2002 entitled “An Emulsified Water Blended Fuels Produced By Using A Low Energy Process And Novel Surfactant.”FIELD OF INVENTION [0002] The invention relates to a novel additive package to produce a water in oil emulsion, in particular water blended fuels with good emulsion stability. BACKGROUND OF THE INVENTION [0003] Internal combustion engines, especially diesel engines, using water fuel blends results in the combustion chamber producing lower nitrogen oxides (NOx), hydrocarbons and particulate matter emissions. NOx emissions have become an important environmental issue because it contributes to smog and air pollution. Governmental regulations and environmental concerns have driven the need to reduce NOx emissions from engines. In particular, the U.S. Clean Air Act will require about 90% to 95% reduction of the current level of internal combustion engines emissions by the year 2...

Claims

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Application Information

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IPC IPC(8): C06B47/00C10L1/10C10L1/12C10L1/14C10L1/18C10L1/22C10L1/32
CPCC10L1/10C10L1/125C10L1/1266C10L1/143C10L1/1802C10L1/1824C10L1/1826C10L1/1881C10L1/198C10L1/1985C10L1/2222C10L1/2225C10L1/231C10L1/238C10L1/2383C10L1/328
Inventor HOBSON, DAVIDPSAILA, ALEXDI BIASE, STEPHEN A.
Owner THE LUBRIZOL CORP
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