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Cetane number increasing component for diesel and diesel fuel containing the same

A fuel and diesel technology, applied in the field of diesel fuel, can solve problems such as poor performance, high oxidation sensitivity, and endangering the satisfactory operation of commercial engines, achieve good fluidity and filterability, and improve the effect of cetane number

Inactive Publication Date: 2015-09-23
TOTAL PUTEAUX FR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the very poor performance of this component in cold environments and its high susceptibility to oxidation have long constituted factors limiting its use in high concentrations in diesel fuel due to the presence of physical and chemical properties that would be detrimental to commercial engines risk of satisfactory operation of
Given these engines, it is currently very difficult to use these derivatives at levels above 5% in diesel fuel and obtain optimum efficiency

Method used

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  • Cetane number increasing component for diesel and diesel fuel containing the same
  • Cetane number increasing component for diesel and diesel fuel containing the same
  • Cetane number increasing component for diesel and diesel fuel containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This example is used to illustrate the feasibility of introducing ester mixtures of two vegetable oils of different types selected from the methyl esters of rapeseed (EMC), soybean (EMS), palm (EMP), and the addition of these mixtures at different concentrations The influence of the introduction of EN590 (GO1) diesel oil and heating oil (FOD1), the characteristics of which are given in Table I below.

[0043] Table I

[0044]

go

FOD

FLT(°C)

-4

-5

Cloud point (°C)

-12

-18

Transition point (°C)

-4

-6

IP 387

1.01

MV15

0.8327

0.8388

Sulfur contentppm

39.8

1740

Viscosity mm / s at 40°C

2.725

2.451

Calculated cetane

50.1

48.5

Monoaromatic %

22.7

21.2

Diaromatic %

6.2

6.9

Polyaromatic %

0.6

0.6

D86 fraction initial boiling point

167.6

168

5％

190.1

188.5

10％

...

Embodiment 2

[0057] In this example, in addition to the cetane number and filterability characteristics of the blend in EN590 diesel fuel, the oxidation stability characteristics of the blend were measured by the iodine number (IN) using the EN14214 standard. The description of these compositions is as follows (mass %):

[0058] A=5SE+95EMC

[0059] B=40EMC+60EMP

[0060] C=30EMC+70EMP

[0061] D=70EMC+30EMP

[0062] E=8SE+92(EMC+EMS+EMP)

[0063] F=100EMC

[0064] These components A, B, C, D, E, F were added to the diesel in a proportion of 20% by weight of the components to 80% of the diesel. The physicochemical properties of these compositions are summarized in Table IV below.

[0065] Table IV

[0066]

[0067] *) Iodine value of diesel oil containing esters

[0068] a) Add 100ppm of EVA

[0069] b) Add 400ppm of EVA

[0070] Inventive Examples A-D meet the stearate / unsaturated ester ratio criteria and oxidative stability, and also result in compositions with good performa...

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Abstract

Component improving cetane in diesel fuels, comprises a stearic acid ester: comprised in a vegetable / animal oil ester in crude / partially hydrogenated form; in a pure state added with a mixture of vegetable / animal oil ester in crude / partially hydrogenated form; or in a mixture of esters of vegetable and / or animal oil in crude or partially hydrogenated form, where the mixtures of saturated and unsaturated esters being such as the mass ratio of the stearic ester content over the total sum of the unsaturated ester contents present in vegetable or animal oil esters is 1-12%. An independent claim is included for a diesel fuel comprising a hydrocarbon resulting from distillates of 180-350[deg]C boiling point and the component comprising at least a saturated ester of more than than 16 carbon atoms, preferably the stearic ester (>=0.5 wt.%).

Description

technical field [0001] The present invention relates to a cetane-enhancing component which does not degrade the performance of the diesel fuel in cold conditions and the oxidation stability, and diesel fuel containing the same. More specifically, the present invention relates to the incorporation of components derived from products of vegetable and animal origin to diesel fuel. Background technique [0002] Fuels containing vegetable oil derivatives have lower emission levels and higher biodegradability, but they generally show very high oxidation sensitivity and show very poor performance in cold environments. Despite these disadvantages, sales of fuels containing these derivatives have increased significantly in recent years as their production has become more competitive with conventional fuels derived from crude oil. In particular, future production of this fuel will receive more positive affirmations as oil reserves dwindle. However, the very poor performance of this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/12C10L1/02C10L1/19C10L1/12
CPCC10L1/19C10L10/12Y02E50/13C10L10/14C10L1/026C10L1/1973Y02E50/10
Inventor 哲·古田弗雷德里克·托尔达尼埃尔·梅耶特
Owner TOTAL PUTEAUX FR
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