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Technical method for preparing menthol synthetic gas by coke oven gas conversion without catalytic oxidation

A methanol synthesis gas and catalytic oxidation technology, applied in chemical instruments and methods, inorganic chemistry, chemical industry, etc., can solve the problems of gas volume fluctuation and low air pressure, reduce consumption, increase conversion operation temperature and pressure, and save investment Effect

Inactive Publication Date: 2008-01-30
SHANXI CLEAR CATALYSIS & PURIFICATION TECH DEV
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Problems solved by technology

[0029] 2) There are a large number of risers in the coke oven, the gas volume fluctuates, and the air pressure is very low. It is difficult to transform them one by one or in groups into reformers at very high working temperatures, both technically and economically. is difficult

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  • Technical method for preparing menthol synthetic gas by coke oven gas conversion without catalytic oxidation
  • Technical method for preparing menthol synthetic gas by coke oven gas conversion without catalytic oxidation

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Embodiment Construction

[0055] The clean coke oven gas provided by coke oven chemical industry without tar and other substances is stored in the gas cabinet. Net coke oven gas from the gas holder (pressure 300mmH 2 O, temperature 25°C) first enters the coke oven gas compressor to compress the gas and obtain energy. Considering that the coke oven gas is relatively dirty, the coke oven gas compressor can be a screw compressor or a piston compressor. The compressed coke oven gas has a pressure of 5.8MPa and a temperature of 120°C, and then it is sent to the coke oven gas non-catalytic oxidation conversion and desulfurization section.

[0056] The process flow of coke oven gas non-catalytic oxidation conversion to produce methanol synthesis gas is shown in Figure 4. The coke oven gas fed into the coke oven gas preheater first enters the coke oven gas preheater, exchanges heat with the reformed gas at the outlet of the waste heat boiler, and is heated The temperature was raised to 450°C. Then it is mix...

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Abstract

The invention relates to a process method of coke oven gas no-catalyst oxidation conversion making the carbinol synthesis gas without catalyst oxidation conversion. The invention compresses the pre-proposed coke oven gas to 3.0 MPa through 6.0 MPa and the gas is mixed with the steam with the temperature ranging from 400 DEG C to 450 DEG C, entering into the conversion furnace; the outlet of the burning nozzle of the conversion furnace is combusted by contacting with the oxygen for providing enough heat for conversion reaction. The conversion gas after reaction is discharged out of the conversion furnace; after the heat is recycled, the carbinol synthesis gas is got by desulphurization. By improving the conversion operation temperature and pressure, the invention shortens the process flow, reduces the desulphurization difficulty, obtains the synthesis gas composition beneficial for the carbinol production and reaches the purpose of energy saving and consumption reduction.

Description

technical field [0001] The invention relates to a method for preparing methanol synthesis gas, in particular to a method for preparing methanol synthesis gas by using coke oven gas as a raw material. The invention adopts a non-catalytic oxidation conversion method to produce methanol synthesis gas from coke oven gas. Background technique [0002] The core and difficulty of producing methanol from coke oven gas is to solve the conversion and reformation of alkane components in coke oven gas, so that it can meet the requirements of the hydrogen-carbon ratio of methanol synthesis gas, and at the same time reduce the content of inert gas components. [0003] At present, the coke oven gas partial oxidation catalytic conversion process is commonly used to prepare methanol synthesis gas. This process is similar to the second-stage conversion process of the natural gas two-stage conversion method. The block diagram of the process flow is shown in Figure 1. The net gas pressure prov...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/36
CPCY02P20/10
Inventor 乔海星苗茂谦黄学智
Owner SHANXI CLEAR CATALYSIS & PURIFICATION TECH DEV
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