Method for directly preparing coal gas from industrial high temperature CO2 waste gas

A waste gas, high temperature technology, which is applied in the field of directly producing gas from industrial high temperature CO2 waste gas, can solve the problems of high gas production cost, large energy consumption, large method investment, etc., and achieves a simple and practical process, saves energy and investment, and reduces costs. Effects of air pollution

Inactive Publication Date: 2008-03-19
张成顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high gasification conditions and low gasification intensity (2 /h.m 2 ), so the gas production cost is higher
Large-scale production of CO is the method of using coal-water slurry gasification to produce syngas, which requires large investment and complicated technology, and requires a large amount of fuel coal to produce CO raw material gas
[0004] In "CO 2 In the patent application (Application No. 99110011.5) of Reduction CO Ga

Method used

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  • Method for directly preparing coal gas from industrial high temperature CO2 waste gas
  • Method for directly preparing coal gas from industrial high temperature CO2 waste gas

Examples

Experimental program
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Effect test

Embodiment 1

[0016] The high-temperature CO, a by-product obtained in industrial production, 2 The exhaust gas is sent into the temperature control tank 1 through the delivery pipeline to control and adjust the CO 2 Exhaust gas output temperature. The controlled temperature is about 1200°C (by controlling the temperature to adjust the reaction temperature in the charcoal reaction bed 5) CO 2 The exhaust gas is sent to the primary dedusting device 2 to remove the solid particles in the gas and then sent to the closed reactor 6 through the flow meter 3 . Set CO 2 The reaction temperature of the exhaust gas passing through the charcoal reaction bed 5 and the charcoal reaction is 1100° C., and the reaction time is 10 seconds. The reaction temperature is monitored by the thermometer 4 . If the reaction temperature is lower than 1100 °C, it is necessary to properly control the increase of CO 2 The temperature of the exhaust gas output from the temperature control tank 1; if the reaction temp...

Embodiment 2

[0018] CO at 1200°C 2 After passing through the primary dedusting device 2, the exhaust gas passes through the flow meter 3 and then is sent into the closed reactor 6. Set CO 2 The reaction temperature of the exhaust gas passing through the carbon reaction bed 5 to react with the coke is 1100°C, and the reaction time is 20 seconds. The crude gas obtained can be sent out through the crude gas outlet 7 or through the heat exchange tube 8, the dust removal heat exchange device 9 and the washing and cooling device 10 The obtained high-purity CO is sent into the high-purity CO storage tank 11.

[0019] Other embodiment parameters are listed by the following table:

[0020] Temperature control tank temperature ℃

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Abstract

The invention relates to a method directly using industrial waste heat and industrial high temperature CO2 waste gas to directly prepare coal gas, which uses carbon as raw material, and uses waste heat from industrial high temperature CO2 waste gas to heat the carbon reaction bed, so as to directly convert the high temperature CO2 waste gas passing through the carbon reaction bed into coal gas CO. Because of using the heat energy form high temperature CO2 waste gas, the large number of energy consumption is saved, and the purity of produced CO is high, and the production cost is low, and the purpose of decreasing CO2 discharge in industrial production is achieved.

Description

technical field [0001] The present invention utilizes industrial production waste heat and CO 2 The method of producing CO, especially belongs to the use of high temperature CO 2 A method of directly producing CO from waste gas. Background technique [0002] With the increasing scale of industrial production, some high energy-consuming industries CO 2 Emissions are increasing, causing global warming and seriously damaging the living environment of human beings, thereby reducing CO 2 Emissions have become an important issue in industrial production worldwide. [0003] Coal gas (CO) is an important clean fuel for industrial production and daily life. High-purity CO is also an important basic raw material for organic synthesis, and its purity is >90%. To produce this gas source, most organic synthesis plants use the method of producing air gas and then separating to obtain high-purity gas (CO). This method has high gasification conditions and low gasification intensity ...

Claims

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Application Information

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IPC IPC(8): C10J1/20
CPCY02P20/129
Inventor 张成顺
Owner 张成顺
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