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Gasoline blending method

A preparation method and gasoline technology, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problem of high fuel dilution rate and achieve the effect of changing the high fuel dilution rate

Active Publication Date: 2015-12-23
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a gasoline modulation method to overcome the current problem of high fuel dilution rate (higher than 10%) when the gasoline direct injection gasoline engine is running at full load or in a low temperature environment

Method used

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Embodiment 1

[0037] Take the market to buy 97 No Gasoline, naphtha (a mixture of No. 6 naphtha and No. 120 naphtha of Nanjing Lianmei Chemical Co., Ltd. at a ratio of 1:1), aromatic oil (xylene and toluene of Nanjing Lianmei Chemical Co., Ltd. at a ratio of 1 : 1 configuration mixture), according to the GB / T6536-2010 standard, that is, the determination method of the atmospheric distillation characteristics of petroleum products, measured by a distillation apparatus such as figure 1 The actual distillation curve of the fuel oil shown and the figure 2 As shown in the distillation curves of naphtha and aromatic oil, in this embodiment, attention is paid to the temperature of gasoline T90 (to evaporate more than 90% by mass of gasoline). Set the ideal T90 range to 100-120°C. According to the ideal T90 range set with figure 1 Calculate the temperature that needs to be increased or decreased under each volumetric evaporation rate based on the numerical difference of T90, as shown in the ta...

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Abstract

The invention relates to a gasoline blending method. The method comprises the following steps: 1, testing the practical fuel oil distillation curves of gasoline, naphtha and aromatic oil; 2, setting the expected temperature value or range corresponding to a certain volume evaporation rate; 3, calculating the temperature to be increased or decreased under the certain volume evaporation rate according to the practical fuel oil distillation curve of gasoline on the market, and pre-estimating the required mass percentage of naphtha or aromatic oil according to the temperatures of the naphtha and the aromatic oil corresponding to the volume evaporation rate; 4, adding naphtha or the aromatic oil to the gasoline on the market according to the required mass percentage of the naphtha or the aromatic oil; and 5, testing the fuel oil distillation curve of blended gasoline obtained in step 4, and ending blending if the temperature corresponding to the certain volume evaporation rate approaches the preset expected temperature value or is in the preset expected temperature range. The method can change the problem of higher fuel oil dilution rate of present gasoline on the market.

Description

technical field [0001] The invention belongs to the field of petrochemical new energy. In particular, the present invention relates to a gasoline modulation method. Background technique [0002] With the increasingly stringent environmental protection requirements, low fuel consumption, high-efficiency supercharged gasoline engines and in-cylinder direct injection engines are the current development trend of gasoline engines, and various automobile companies have launched in-cylinder direct injection engines one after another. [0003] At present, the in-cylinder direct injection engine is in the development and testing stage, facing the problem of high fuel dilution rate (incompletely combusted fuel components escape into the crankcase oil along with the combustion gas through the piston ring, which reduces the oil concentration and the fuel dilution rate is too high. High refers to low oil concentration), especially in the thermal shock test or deep thermal shock test for...

Claims

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Application Information

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IPC IPC(8): C10L1/16C10L1/10
Inventor 宋义忠孙卫清丰琳琳彭勇张晓泓戴嘉谦张素秋
Owner SAIC GENERAL MOTORS
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