Coal mine methane preheating catalytic oxidation device with multiple reaction chambers

A catalytic oxidizer, multi-reaction chamber technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problems of large TFRR resistance loss, high maintenance cost, large TFRR footprint, etc., and reduce the volume. And the effect of reducing the floor space, improving operating economy, and reducing maintenance costs
CN102205207AInactive Publication Date: 2011-10-05SHANDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV OF TECH
Publication Date
2011-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a coal mine methane preheating catalytic oxidation device with multiple reaction chambers and belongs to technical field of ultralow-concentration methane oxidation. The device comprises a coal mine methane supply system, a pre-heater, even reaction chambers, a suction system, an exhaust system, an exhaust heating system and a measuring and controlling system, wherein an electric heater, a temperature-equalizing and flow-equalizing bed and a catalytic oxidation bed are arranged in each reaction chamber. After starting to heat, the coal mine methane is heated after entering into the pre-heater through the coal mine methane supply system; and then the coal mine methane is supplied to each reaction chamber through the suction system; carbon dioxide and water are oxidized in the catalytic oxidation bed of the reaction chamber; after the reacted heat gas is converged by the exhaust system, one part of the heat gas is used for utilizing the heat; and the residual heat gas enters into the pre-heater and transfers the heat to the fresh coal mine methane, and the residual heat gas is lastly discharged into the atmosphere after being cooled. The coal mine methane preheating catalytic oxidation device with multiple reaction chambers has the advantages of compact structure, low power consumption, simpleness in running, high reliability, and the like.
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Description

technical field

[0001] The invention relates to a multi-reaction chamber coal mine exhaust air preheating catalytic oxidizer, which belongs to the technical field of ultra-low concentration methane oxidation. Background technique

[0002] The main component of coal mine gas is methane, a greenhouse gas whose greenhouse effect is 21 times that of carbon dioxide. In recent years, my country's annual methane emission through coal mine ventilation is more than 15 billion Nm 3 . If this exhaust gas is utilized, it is equivalent to about 23 million tons of standard coal, which can reduce 200 million tons of carbon dioxide equivalent. The concentration of exhaust gas in coal mines is very low, and it is difficult to use traditional burners for direct combustion. The current effective utilization methods are Thermal Flow Reversal Reactor (TFRR for short) and Catalytic Flow Reversal (CFRR for short). . The basic working principle and structure of these two countercurrent oxidatio...

Claims

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