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Fuel composition and its use

A composition and mixture technology, which is applied in the direction of fuel, fuel additive, liquid carbon-containing fuel, etc., can solve the problems of reducing power output and fuel efficiency

Inactive Publication Date: 2013-09-25
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Retarding ignition timing reduces the propensity of the fuel-air mixture to knock, but also reduces power output and fuel efficiency

Method used

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  • Fuel composition and its use
  • Fuel composition and its use
  • Fuel composition and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1-2

[0059] Alpha-terpinene and comparative gamma-terpinene or 1,4-cyclohexadiene were added to 1 gallon of 87 octane base fuel at a treat rate of 0.4 moles per liter of fuel according to Table IV. Three RON and MON tests were performed on various additives.

[0060] Table IV

[0061] Examples#

Additives

Amount added (mol / liter fuel)

Comparative example 1

γ-terpinene

0.4

Comparative example 2

1,4-cyclohexadiene

0.4

1

alpha-terpinene

0.4

[0062] The RON change, MON change and sensitivity change (RON-MON) of the base fuel are as follows:

[0063] Table V

[0064]

ΔRON

ΔMON

Sensitivity Δ(RON-MON)

OI

alpha-terpinene

1.1

-1.3

2.4

86.5

γ-terpinene

0

-3.5

3.5

85.0

1,4-cyclohexadiene

0.6

-0.9

1.5

86.5

[0065]where ΔRON is defined as the difference in RON values ​​obtained for base fuel and base fuel + additive. The...

Embodiment 2-5

[0069] Alpha-terpinene was added to 1 gallon of 83 octane base fuel according to the treatment ratio in Table VI. Three RON and MON tests were performed on various additives.

[0070] Table VI

[0071] Examples#

Additives

Additive amount (wt%)

2

alpha-terpinene

0.0

3

alpha-terpinene

0.5

4

alpha-terpinene

1.0

5

alpha-terpinene

2.0

[0072] figure 1 and 2 The graphs for the base fuel give the change in octane number increase (octane index) and the change in sensitivity (RON-MON) (expressed in dRON-dMON). Particularly, figure 1 The graph in details the effect of alpha-terpinene addition on fuel octane increase. figure 2 The graph in details the effect of alpha-terpinene addition on fuel sensitivity.

[0073] figure 1 The results indicated that the ability of α-terpinene to increase fuel sensitivity increases with concentration. This effect is not unexpected since increasing the amount of ...

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PUM

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Abstract

A fuel composition is provided that contains (a) a major amount of a mixture of hydrocarbons in the gasoline boiling range and a minor amount of and (b) a minor amount of alpha-terpinene.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 613,517, filed March 21, 2012. technical field [0003] Embodiments of the present invention relate to gasoline compositions and their use, particularly in combustion engines. Background technique [0004] This section is intended to introduce various aspects of prior art that may be relevant to exemplary embodiments of the present invention. It is believed that this discussion will help to provide a framework for better understanding certain aspects of the invention. Accordingly, it should be understood that this section should be read in this context, and not necessarily as an admission of any prior art. [0005] The minimum octane rating of the fuel required by a spark ignition internal combustion gasoline engine depends on the design of the engine. Refiners are constantly challenged to improve their products to meet increasingly stringe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/04C10L1/06C10L1/16C10L1/10
CPCC10L1/06C10L1/1608C10L10/10C10L2200/0423C10L2200/0469C10L2270/023
Inventor T·谢伊
Owner SHELL INT RES MAATSCHAPPIJ BV
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