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Technique method for producing gasoline by using methanol through one-step method

A process method, methanol technology, applied in the field of one-step methanol production of gasoline, which can solve the problems of high operating costs, large investment, and a large number of reactors

Inactive Publication Date: 2014-06-25
洛阳市科创石化科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing MTG technology has the disadvantages of long process flow, large number of reactors, large investment and high operating cost.

Method used

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  • Technique method for producing gasoline by using methanol through one-step method
  • Technique method for producing gasoline by using methanol through one-step method
  • Technique method for producing gasoline by using methanol through one-step method

Examples

Experimental program
Comparison scheme
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Embodiment 1-9

[0041] In the fixed-bed stainless steel reactor that 500 milliliters of special catalyzers are housed, experiment is carried out according to the method provided by the present invention and condition, see Table 1 for experimental operation condition, be equipped with high-pressure separator, stabilizer, absorber, product collection device.

[0042] Table 1 Experimental operating conditions

[0043]

[0044] Through the implementation of the technical solution of the present invention, please refer to Table 2 for the finally obtained experimental results of the examples.

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Abstract

The invention relates to a technique method for producing gasoline by using methanol through a one-step method. The technique method comprises the following steps: (1) heating methanol and water and then feeding in a reactor, wherein the methanol is converted into C1-C12 hydrocarbon products under proper conditions; (2) carrying out heat exchange to the C1-C12 hydrocarbon products and then feeding in a separator, to obtain generation water, non-condensable gas and a liquid product containing C3-C12, wherein the liquid product is pumped into a stabilizing tower through a pump; (3) separating out gasoline fraction and liquefied gas in the stabilizing tower, discharging non-condensable gas from the tower top, wherein the gasoline fraction serves as a gasoline product and a gasoline absorbent; (4) feeding the non-condensable gas in an absorption tower, recovering C<3+> by using the gasoline absorbent, separating out dry gas from the tower top, and returning the gasoline absorbent to the stabilizing tower. According to the technical scheme, the technique method has the advantages of short technique flow, small equipment investment, low operation cost, high methanol conversion rate, high gasoline productivity being more than 36%, and greatly improved product distribution.

Description

Technical field [0001] The present invention relates to a process for producing gasoline from methanol, in particular to a one-step process for producing gasoline from methanol. Background technique [0002] As my country's oil resources become increasingly scarce, my country's dependence on imported crude oil has already exceeded 50%, causing the price of product oil to continue to rise; at the same time, vehicle exhaust emissions have also caused serious environmental pollution. my country's energy structure is characterized by being rich in coal, low in gas, and short of oil. Therefore, from the perspective of energy security, it is more important to develop alternative energy sources to oil. Converting coal into methanol and then producing gasoline and other petrochemical products from methanol is one of the effective ways to solve my country's oil shortage. [0003] Mobil Company of the United States first invented the methanol-to-gasoline (MTG) technology, applied for...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02P20/52Y02P30/20
Inventor 龚旭辉
Owner 洛阳市科创石化科技开发有限公司
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