Fatty acid composition, its production and use

a technology of fatty acid composition and composition, which is applied in the direction of lubricant composition, liquid carbonaceous fuel, fuel, etc., can solve the problems of reduced lubricating properties of fuel, increased wear on engine components, and difficulty in finding fuel additives, etc., to improve the over-all performance of formulated fuel, improve the lubricating properties, and reduce the effect of temperature stability

Inactive Publication Date: 2005-12-08
ARIZONA CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015] The present invention relates to a fatty acid composition which fatty acid composition provides low temperature stability to the product that it is added to. The fatty acid composition is preferably used as a fuel additive since it also provides excellent lubricating properties and thus improves the over-all performance of the formulated fuel. As a lubricity improver the composi

Problems solved by technology

The removal of sulfur compounds at the refinery has resulted in the lubricating properties of the fuel being reduced.
This in turn has caused increased wear on engine components.
During the wintertime insufficient low temperature stability of the fuel causes problems in cold climates.
Despite the use it has been difficult to find fuel additives which improve lubricating propert

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0088] Crude tall oil was selected and analyzed by the ASTM standard method D 5974. The contents of different fatty acids were

C 16:00.8C 17:00.4C 18:00.2C 18:19.3C 18:215.2C 18:35.4C 20:00.4resin acids34

[0089] The crude tall oil was distilled in accordance with the present invention to provide a fatty acid composition. The fatty acid composition obtained was analyzed and the content of the fatty acids was:

C 16:00.1C 17:00.2C 18:00.7C 18:129.7C 18:245C 18:314C 20:00.3resin acids

[0090] The cloud point of the fatty acid composition was analyzed with the ASTM standard method D5771. The cloud point was −11° C. The composition was also analyzed by DSC and the first thermal event on second cooling was −21 C. The cloud point factor calculated by equation I was 0.14.

[0091] The lubricity performance of the fatty acid composition was good and the composition was useful for being added to a fuel as a low temperature stable additive.

example 2

[0092] The crude tall oil of Example 1 was distilled also in a second trial.

[0093] The fatty acid composition obtained was analyzed and the content of the fatty acids was:

C 16:00.2C 17:00.2C 18:00.8C 18:130.2C 18:247.8C 18:312.6C 20:01.0resin acids

[0094] The cloud point of the fatty acid composition was analyzed with the ASTM standard method D5771. The cloud point of the fatty acid composition was −15° C. and it was useful as a low temperature stable additive. The cloud point factor calculated according to equation I was 0.25.

example 3

REFERENCE EXAMPLE

[0095] Crude tall oil from American sources was fractionated into a tall oil fatty acid composition with a resin acid content of about 2%.

[0096] The fatty acid composition obtained was analyzed and the the fatty acids comprised:

C 16:01C 17:00.3C 18:02.3C 18:148.4C 18:238C 18:34.8C 20:00.1resin acids

[0097] The cloud point of the fatty acid composition obtained from the American crude tall oil was 7° C. The content of the C18;3 fatty acid content in oil fatty acid composition was only (4.8%). The cloud point factor of the composition was found to be 1.48.

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PUM

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Abstract

The present invention relates to a fatty acid composition which contains an effective amount of fatty acids providing improved low temperature stability of the composition. The present invention also relates to a process for producing a fatty acid composition wherein the process comprises the steps of selecting a crude tall oil having a fatty acid concentration and type capabld of providing low temperature stability, distilling said crude tall oil to provide a fatty acid composition containing an effective amount of tall oil fatty acids providing low temperature stability. The fatty acid composition of the present invention is used as a fuel additive.

Description

[0001] The present invention relates to a fatty acid composition and to a process for production thereof, and to the use thereof. The fatty acid composition has excellent lubricity performance and good low temperature stability and it is used e.g. as a fuel additive in various types of fuel. Its low temperature properties make it useful also for other uses, such as ore flotation compositions and surfactant compositions. The present invention also relates to a fuel additive and a fuel having good low temperature properties. The preferred fatty acid composition is derived from tall oil. BACKGROUND [0002] Crude tall oil is recovered from black liquors produced in the kraft pulping process. The composition of crude tall oil is not constant, it varies depending on factors such as cooking, washing, skimming, storage and most of all, the source of wood chips used in the pulping. The tall oil fatty acids are contained in the black liquor in the form of soaps. When the soaps are acidified fr...

Claims

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Application Information

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IPC IPC(8): C10L1/18C10L1/188C10L1/19C10L10/04C10M129/38C10M129/74
CPCC10L1/1881C10L1/1888C10L1/191C10L10/08C10M2207/283C10M129/74C10M2207/126C10M2207/18C10M129/38C10M129/60C10L1/188C07C51/44C10L1/18C10L10/14
Inventor BREWER, MARKKAUTTO, TORBJORNRAVASKA, MATTI
Owner ARIZONA CHEM CO
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