Device and method for producing acetylene by hydrogen direct current arc plasma cracking coal

Abstract

The invention relates to a device and a method for producing acetylene by hydrogen direct current arc plasma cracking coal. The method comprises the following steps: the hydrogen coal dust is fed into a plasma reactor, enters a quenching machine for quenching after the reaction, then enters a cyclone separator for preseparation between gas and solid; the gas part enters a rinsing dust removing tower for dedusting, is sent to a compressor for compression by a booster fan, then enters a pressure swing adsorption tower for adsorption and concentration, and simultaneously, the gas out of the pressure swing adsorption tower enters the compressor again and is sent to an adsorption tower for extracting hydrogen; the solid dust separated by the cyclone separator and the rinsing dust removing tower forms solution with water; a ceramic membrane device is utilized to carry out liquid and solid separation; the solid dust is sent to a power plant to be served as raw materials; and water enters therinsing tower for recycling. The invention has reasonable process design and high economic efficiency, can be used in combination or separately, and can be directly used in the processes for producing hydrogen chloride, acetylene ethane derivative, methanol and the derivatives and the like.

Description

technical field [0001] The invention relates to a coal cracking process, in particular to a device and method for cracking coal to produce acetylene by using hydrogen DC arc plasma. Background technique [0002] At present, the industrial production methods of acetylene mainly include: calcium carbide hydrolysis and natural gas partial oxidation; calcium carbide hydrolysis technology has been very mature after years of development, but due to long process flow, harsh working environment, large waste of water resources, serious environmental pollution, etc. The reason is that this process has been eliminated abroad; compared with it, the natural gas partial oxidation method has economic advantages over the calcium carbide method, but it must be equipped with synthetic ammonia or methanol devices, and the process equipment is complicated, the capital investment is large, and a large amount of catalysts are required. Due to the uneven distribution of natural gas resources in my c...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high energy consumption, low utilization efficiency, complicated process, serious pollution, unstable and discontinuous operation of the plasma coal-to-acetylene technology, serious coking in the reactor, and long working hours in the acetylene production process in the prior art. Short, serious equipment damage, low safety factor, etc., and then proposed a method for acetylene production efficiency, low energy consumption, less environmental pollution, stable and reliable operation of the plasma coal-to-acetylene process, no pollution, short process flow, high safety, A device and method for producing acetylene by hydrogen DC arc plasma cracking coal with high automation and high energy utilization efficiency and promotion value

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