A method and device for producing gasoline blending components

Abstract

The invention discloses a method and device for producing gasoline blending components, relating to the technical field of gasoline blending component production. The method comprises the step of carrying out isomerization reaction on a C4 component, wherein a mixture of 1-butylene, cis-2-butene and trans-2-butene in the C4 component accounts for 60-80% of the total C4 component by mass. The method is characterized by carrying out etherification reaction between all the reaction products and methanol, separating out 1-butylene, cis-2-butene and trans-2-butene, which are not isomerized, to further participate in isomerization reaction circularly and liquefying other components, thus obtaining the gasoline blending components. The method and the device have the beneficial effects that the method is simple and reasonable and has high efficiency; the obtained gasoline blending components have high quality; the device is simple in process and low in energy consumption and has the effect of saving the equipment investment; the obtained gasoline blending components have high quality, lower chemical oxygen contents and higher octane numbers and stability; the gasoline blending components are used for gasoline blending and are beneficial to reducing the cost and increasing the octane number and stability of gasoline.

Description

technical field [0001] The invention relates to the technical field of production of gasoline blending components. Background technique [0002] With the continuous development of the coal chemical industry towards clean energy, coal-to-gas, coal-to-methanol, and derivatives such as MTP (methanol-to-propylene), MTO (methanol-to-olefins) and other devices have been launched continuously, and a large amount of carbon has been produced in the market. Three, carbon four and other clean raw materials. Among them, carbon tetraolefin raw materials are mainly used for direct or indirect production of gasoline blending components. Among them, the most popular is the use of the carbon tetraolefin raw materials of the above-mentioned coal chemical industry to select 1-butene, cis-2-butene and trans-2-butene skeletal isomerization technology to produce methyl tert-butyl ether (MTBE for short). The indirect production of gasoline components by this method has become an important part o...

AI Technical Summary

Problems solved by technology

[0007] 3 The de-weighting tower separates the components above C5 and C4 components. Although the C4 components are fed in the gas phase, a reflux ratio of 0.6-1.0 is required during operation, and steam consumption is required

[0008] 4 Consumption of air cooler of de-weighting tower, circulating water, power consumption of reflux pump

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