Coal-bed gas non-catalytic deoxygenation process by utilizing dual-barrel moving-bed reactor

Abstract

The invention relates to a coal-bed gas non-catalytic deoxygenation process by utilizing a dual-barrel moving-bed reactor. The deoxygenation process is characterized in that the coal-bed gas is pressurized and heated and enters a reaction section from the bottom of the reactor to be reacted with a deoyxgenation agent; the reacted gas is cooled down through a heat storage section of the reactor and enters a cooler from the upper part of the reactor to be cooled; then the coal-bed gas enters the reaction section to be reacted with the pressurized deoxygenation agent after being preheated by theheat storage section from the upper part of the reactor, the product gas enters the heat storage section to be cooled down and enters the cooler to be cooled through the upper part of the reactor; the flow direction of the gas is changed by switching a valve, the pressurized gas enters the heat storage section to be preheated via the upper part of the reactor, then the preheated gas enters the reaction section to be reacted with the deoxygenation agent and then to enter the heat storage section to be cooled down, and the product gas is cooled and outputted through the cooler. Due to the adoption of the coal-bed gas non-catalytic deoxygenation process, the heat exchanging efficiency is improved, the problem of the high deoxygenation temperature in the coke burning process can be solved, the oxygen content of the raw material gas at an inlet of the reactor is free from being adjusted, the process flow is simple, and economical efficiency can be realized.

Description

technical field [0001] The invention relates to a coal bed gas deoxidation process, in particular to a technical scheme of a coal bed gas non-catalytic deoxidation process using a double cylinder moving bed reactor. Background technique [0002] Coal bed gas, also known as gas, is mainly composed of CH 4 , is a high-quality clean energy with high calorific value, and direct emission causes waste of resources; and CH 4 is a greenhouse gas with a greenhouse effect of approximately CO 2 21 times that of coal-bed methane emissions will aggravate the greenhouse effect. Therefore, increasing the development and utilization of coalbed methane has good economic and environmental benefits. [0003] Oxygen in oxygen-containing coalbed methane causes explosion hazards during the utilization of coalbed methane. Therefore, the key technology for the utilization of oxygen-containing coalbed methane is deoxidation. There are two main deoxidation methods at present: one is physical deo...

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Problems solved by technology

[0006] The present invention aims at the deficiencies in the existing deoxidation process, and provides a non-catalytic deoxidation process for coalbed methane using a double-cylinder moving bed reactor to solve the problems of high deoxidation reaction temperature and insufficient deoxidation reaction in the prior art. The problem of low deoxygenation rate

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