Quick coal pyrolysis reactor

Abstract

The invention relates to a quick coal pyrolysis reactor which comprises a reactor body, a cyclone separator built in the upper portion of the reactor body, and a particle moving bed. The particle moving bed comprises side panels and two wallboards fixed to the side wall of the reactor body. A cavity of the particle moving bed is defined by the side panels, the two wallboards and the side wall. The cyclone separator is communicated with a gas inlet of the particle moving bed. A pyrolysis oil gas outlet is formed in the portion, between fixing parts of the wallboards, of the side wall. By arranging the cyclone separator and the particle moving bed on the upper portion of the reactor body, heat preservation and coking of the cyclone separator are effectively avoided. Meanwhile, the particle moving bed is arranged on the pyrolysis oil gas outlet and can make contact with high-temperature coal pyrolysis oil gas through a refrigerant, temperature of the high-temperature coal pyrolysis oil gas is reduced, part of condensed heavy tar is adsorbed, and quality of tar is improved.

Description

technical field [0001] The invention belongs to the technical field of step-by-step utilization of coal, and in particular relates to a coal rapid pyrolysis reactor for medium and low-rank coal such as long-flame coal and lignite. Background technique [0002] China is in the stage of rapid industrialization and urbanization. During this process, the public puts forward higher and higher standards for the quality of life, living environment, and urban conditions, and the lifestyle and consumption patterns undergo more and more significant changes. The continuous growth of car ownership, the expansion of housing area, and the derived demand formed on this basis will become the most important driving force for the sustainable development of economy and society. This will lead to a series of changes in the economic structure, and will also bring about continuous growth in total energy consumption, especially the growth in consumption of oil and natural gas. The essence of Chi...

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Problems solved by technology

[0005] The pyrolysis oil and gas produced in the process of pyrolyzing pulverized coal with the above-mentioned pyrolysis furnace has complex components, many heavy tar components, large dust content, irregular dust shape, and high gas temperature, resulting in online pyrolysis of fine coke and pyrolysis oil and gas. The separation effect is not ideal, resulting in unstable operation of the pyrolysis system and high ash content in the tar, which hinders the industrialization process of pulverized coal pyrolysis technology

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