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A kind of full distillate fuel for internal combustion engine and its application

A full-fraction, internal combustion engine technology, applied in the direction of fuel, liquid carbon-containing fuel, hydrocarbon distillation, etc., can solve the problems of no clear technical approach, no full-fraction fuel patent, high harmful emissions, etc., to achieve the storage and transportation refueling process Effects of simplification, cost reduction, and fuel consumption reduction

Active Publication Date: 2016-01-13
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gasoline engine adopts spark ignition and flame propagating combustion method, which has low thermal efficiency, but the emission of harmful substances is easy to control; diesel engine adopts self-ignition ignition and spray diffusion combustion method, with high thermal efficiency, but high emission of harmful substances
Researchers at home and abroad have imagined combining the advantages of gasoline engines and diesel engines, that is, developing a unified internal combustion engine, but there is no clear technical way to realize it.
At the same time, since gasoline and diesel fuel are produced separately in the refining process, and other components are added according to the national standards of the two fuels, gas stations must be stored and refilled according to the two types of fuel, and internal combustion engines must be designed and manufactured separately for gasoline engines and diesel engines. , increasing the cost of oil refining and the manufacture of internal combustion engines
[0003] By consulting some relevant foreign patents and scientific literature, no patents for full distillate fuels were found

Method used

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  • A kind of full distillate fuel for internal combustion engine and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Distillation process: take Saudi medium crude oil, place it in a still, control the temperature of the still at 100-350°C, and take the fraction at 40-360°C. The yield of product was obtained in 46%.

[0024] Product inspection: The detection method of carbon atom number is PONA / PIONA analysis method, and the analysis result shows that the number of C atoms is C5-C23. Cetane number determination method GB / T386-2010 Diesel cetane number determination method, the result is 47.4. Determination of distillation range: according to SH / T0121-92 (2004) "Technical Conditions for Distillation Range Determination Devices for Petroleum Products", the results are as follows figure 1 . It can be seen from the figure that the distillation range temperature is from 40°C to 360°C, covering the range of general gasoline and diesel distillation range (dashed line in the figure).

[0025] As another embodiment of the present invention, the whole distillate fuel can also be prepared by u...

Embodiment 2

[0026] Embodiment 2: combustion test

[0027] The whole distillate fuel of Example 1 was tested on a diesel engine with a cylinder diameter of 83 mm. Compared with the indicated thermal efficiency data when the average indicated pressure is 8bar, the spray diffusion mixing and spontaneous ignition combustion methods are adopted. The combustion control parameters are: the injection pressure is 80MPa, the injection time is 10 degrees crankshaft angle before the combustion top dead center, and a single injection is performed. The engine parameters are listed in Table 1. The indicated thermal efficiency of a typical ignition engine at a given operating point is about 33%. The indicated thermal efficiency of diesel in this test is 47%. If the mass yield of gasoline and diesel is the same, the combined thermal efficiency of the two is 40%. ; And the thermal efficiency of the full distillate fuel oil in the test reached 50%. Therefore, from the point of view of the comprehensive e...

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Abstract

The invention provides a full-fraction fuel for an internal combustion engine. The full-fraction fuel comprises the following main components: alkane, cycloalkane, olefin and arene, wherein in the molecular structure of the fuel, the atomic number of C is C5-C23, the value of hexadecane is 47-55, and the boiling range of the full-fraction fuel is 40-360 DEG C. The invention provides an application of the full-fraction fuel. According to the full-fraction fuel provided by the invention, the atomic number of a molecular formula C and the boiling range of the fuel cover the range of currently common gasoline, kerosene and diesel oil, the volatilization property is higher than that of diesel oil, and the spontaneous ignitability is higher than that of gasoline and close to that of diesel oil. The internal combustion engine can adopt a combustion mode of spray diffusion spontaneous ignition when using the fuel, emission of soot and particles of the flue is far lower than that of diesel oil, the heat efficiency of the fuel is far higher than that of a gasoline engine, so that the total fuel consumption of the internal combustion engine, in particular an automobile engine is remarkably reduced, and the cost for controlling harmful emission can be reduced. Furthermore, the oil refining process is simplified, an oil storage, transportation and feeding system is simplified, the design and manufacture of the internal combustion engine are simplified, and the cost is remarkably reduced.

Description

technical field [0001] The invention belongs to the field of fuels, and in particular relates to a full fraction liquid carbon-containing fuel, a preparation method and application thereof. Background technique [0002] Gasoline and diesel are the two most commonly used fuels for internal combustion engines and automobile engines. There are two main differences in their physical and chemical indicators. First, the number of carbon (C) atoms in the molecular formula is different. Gasoline is C5-C11, diesel is C16-C23, and kerosene is C11-C19 if subdivided. Second, the distillation range is different, gasoline is 40°C-180°C, Diesel is 180°C-360°C. Due to the different physical and chemical properties of gasoline and diesel, internal combustion engines using petroleum-based fuels are divided into two categories, namely gasoline engines and diesel engines. Gasoline engines adopt spark ignition and flame propagation combustion methods, which have low thermal efficiency, but the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/04C10L1/10C10L1/23C10L1/18C10G7/00
Inventor 王建昕王志刘浩业帅金石肖建华何鑫
Owner TSINGHUA UNIV
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