A reactor for producing natural gas from pulverized coal pyrolysis

Abstract

The invention discloses a reactor for preparing oil and natural gas through pulverized coal pyrolysis, relates to the technology of coal gasification and pyrolysis and aims at solving the technical problems of large volume, small production capacity, low oil yield and high dust content of oil gas of existing fluidized-bed pyrolysis equipment. The reactor comprises a water-cooled wall gasifying chamber, a coal hydrogenation pyrolysis reaction chamber and a cyclone separator, wherein a hydrogen preparation raw material inlet is formed in the water-cooled wall gasifying chamber; a water-cooled wall is arranged in the water-cooled wall gasifying chamber and communicated with a slag tank, and a uniform-pressure nitrogen ring pipe is arranged at the middle, and a water bath ring is arranged above the slag tank; the water-cooled wall gasifying chamber is communicated with the coal hydrogenation pyrolysis reaction chamber through a reducing gas pipe; a pulverized coal nozzle is arranged at the top of the coal hydrogenation pyrolysis reaction chamber, a coolant nozzle is arranged at the lower part, and the bottom is communicated with the cyclone separator; and the bottom of the cyclone separator is connected with a semi-coke collection device, and the top is connected with a crude oil gas follow-up purifying treatment system. The reactor disclosed by the invention is used for preparing oil and gas from coal and has the advantages of reasonable design, compact structure, clean oil gas and high oil yield.

Description

technical field [0001] The invention belongs to the technical field of coal gasification and pyrolysis, and in particular relates to a reactor for producing oil / natural gas by pyrolysis of pulverized coal. Background technique [0002] With the rapid development of the national economy, my country's oil consumption has grown rapidly. Petroleum is a national strategic security material, and my country is relatively short of petroleum resources. In order to reduce dependence on imported petroleum, my country is implementing a diversified energy strategy. The development of clean coal technology is one of the countermeasures to implement the national energy diversification strategy. Among them, pulverized coal pyrolysis technology is a competitive clean coal technology because of its relatively simple method and low investment. [0003] Typical coal pyrolysis processes at home and abroad include external heating vertical furnace process, internal heating vertical furnace proc...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a reactor for producing natural gas by pyrolysis of pulverized coal, and to solve the problem of large size of existing fluidized bed pyrolysis equipment, small production capacity, low oil yield, and oil and gas content. Technical problems with high dust load

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