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fuel composition

一种组合物、燃料的技术，应用在燃料、生物燃料、燃料添加剂等方向，能够解决潜力限制、十六烷值增进效果降低、燃料过滤器堵塞等问题

Inactive Publication Date: 2016-12-14
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to incomplete esterification of the oil (triglycerides) during production, FAME will contain traces of glycerides which, on cooling, will crystallize out before the FAME itself, causing clogging of fuel filters and hazards containing them Cold Weather Operability of Fuel Compositions
[0006] In fact, from the viewpoint of cetane number improvement, it is known that the cetane number improvement effect of FAME decreases as the mixing ratio of FAME to base fuel increases.
Therefore, the potential of FAME as a cetane boosting component is limited for a number of reasons, at least in some applications requiring additional cetane boosting additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1 (comparative example)

[0084] Diesel fuel compositions are prepared by mixing a diesel base fuel with an ether component consisting of dipentyl ether (DPE).

[0085] The base fuel was zero sulfur diesel fuel (available from Shell) which complied with the European diesel fuel specification EN590. It does not include any detergent or lubricity additives or any oxygenates such as FAME. Its characteristics are summarized in Table 1 below.

[0086] Table 1

[0087]

[0088] The ether component tested consisted of 97% pure (by GC) dipentyl ether from Sigma Aldrich. The relevant properties (literature values) for the ether component are as follows: boiling point = 188°C; flash point = 57°C; vapor pressure at 25°C = 1.0 Torr; density = 0.791 g / cm 3 .

[0089] The ether component was mixed with the base fuel at 2, 5, 10, 15, 30 and 50% v / v. For cetane number, the resulting mixture was tested using the IQT method specified in Table 1. Table 2 presents the ...

Embodiment 2

[0100] Embodiment 2 (comparative example)

[0101] Diesel fuel compositions were prepared for comparison with those of Example 1 by mixing a diesel base fuel with a fatty acid methyl ester (FAME) component.

[0102] The diesel base fuel was the same as in Example 1.

[0103] The FAME component consisted of 100% refined grade palm oil methyl ester (POME).

[0104] The relevant properties for the FAME component are as follows: flash point = 156°C (IP34); viscosity at 40°C = 4.45mm 2 / s(IP71); density=0.877g / cm 3 (IP365).

[0105] The FAME components were mixed with the base fuel at 2, 5, 10, 15, 30 and 50% v / v. For cetane number, the resulting mixture was tested using the IQT method specified in Table 1. Table 3 presents the results.

[0106] From the measured cetane numbers of the blend and the diesel base fuel, the blended cetane values ​​for the FAME components were calculated as follows.

[0107] Hybrid CN FAME =(CN comp -(1-x)*CN diesel ) / x

[0108] in,

[0109]...

Embodiment 3

[0117] According to the present invention, a diesel fuel composition is prepared by mixing a diesel base fuel with an ether component consisting of a dipamyl ether and a fatty acid methyl ester (FAME) component.

[0118] Diesel base fuel and dipentyl ether components were the same as in Example 1. The FAME components were the same as in Example 2.

[0119] The ether and FAME components were mixed with the base fuel in the amounts given in Table 4. For cetane number, the resulting mixture was tested using the IQT method specified in Table 1. Table 4 presents the results.

[0120] From the measured cetane numbers of the blend and the diesel base fuel, the values ​​for the blended cetane number for the combined ether and FAME components were calculated as follows.

[0121] Hybrid CN DPE+FAME =(CN comp -(1-x)*CN diesel ) / x

[0122] in,

[0123] - Hybrid CN DPE+FAME is the mixed cetane number of the combined ether and FAME components when used as a total volume fraction x;...

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Abstract

A fuel composition comprising: diesel base fuel; 1-10% v / v fatty acid alkyl esters; and greater than 10% v / v ether component comprising or consisting of one or more Composition of ether compounds having 8-12 carbon atoms and compounds selected from formula I, wherein R1 and R2 are independently C2-C24 primary or secondary alkyl groups.

Description

technical field [0001] The present invention relates to diesel fuel compositions comprising certain ethers, their preparation and their use and use of certain ethers in fuel compositions for novel purposes. Background technique [0002] Many diesel fuel compositions contain cetane boosting components, also known as ignition promoters. The cetane number of a fuel or fuel composition / formulation is a measure of its tendency to ignite. With lower cetane fuels, compression ignition (diesel) engines tend to be harder to start and possibly noisier to run when very cold. Therefore, it is generally preferred that diesel fuel compositions have a high cetane number, and therefore automotive diesel specifications usually specify a minimum cetane number. [0003] For the benefit of the environment, it is also desirable to increase the amount of biofuel or biocomponent used in automotive diesel fuel. Biofuels are combustible fuels (derived from biological sources) that reduce "well-to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02C10L10/12C10L1/185
CPCC10L1/026C10L10/12C10L2200/0446C10L2200/04C10L1/02C10L2200/0476C10L1/1852Y02E50/10
Inventor A·赛阿左L·克拉克T·K·高G·R·李D·A·帕克R·J·普莱斯
Owner SHELL INT RES MAATSCHAPPIJ BV
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