Device and method for increasing yield of tar by using coke oven gas as raw material through catalytic reforming

Abstract

The invention discloses a device and method for increasing yield of tar by using a coke oven gas as a raw material through catalytic reforming. A carbonization chamber is formed inside a coke oven of the device; a reforming reaction device is arranged inside the carbonization chamber; an annular combustion chamber is formed on the outer side of the carbonization chamber. The method comprises the following steps: firstly, introducing the coke oven gas and carbon dioxide and vapor generated from the coke oven combustion chamber into a catalyst layer, performing a catalytic reforming reaction, after the reaction, introducing gas flow into coal, and performing pyrolysis on the coal in the atmosphere. According to the device and the method, carbon dioxide has a reforming reaction with methane, carbon monoxide has a water-gas reaction with water, a generated H intermediate can be acted with large-molecule free radicals generated in the pyrolysis process, and the yield of tar can be increased. By adopting the device and the method, the hydrogenation cost can be lowered, the greenhouse effect can be alleviated, and the environment can be improved; by adjusting the contact mode of the catalyst inside the coke oven and the coal, the reaction contact area can be increased, the utilization rate can be increased, and the reaction time can be shortened; in addition, as the catalyst and the coal can be layered, the catalyst can be easily recycled and reused, and the yield of coal tar can be high.

Description

technical field [0001] The invention relates to a device and method for increasing tar yield through catalytic reforming using coke oven gas as raw material, belonging to the technical field of energy. Background technique [0002] In today's society, the country advocates the development of new energy sources, such as tidal energy, solar energy, etc., but the technology is still immature and cannot completely replace the existing energy structure, so primary energy is still the main energy used in our country. However, as the main energy source, while meeting people's needs, there are also problems such as energy depletion and environmental pollution. Coal already has a fairly mature technical basis in replacing petroleum, so coal-to-oil production has become an important technical solution. Coal pyrolysis is a simple thermal processing process, and the coal pyrolysis process is a process that improves the utilization rate of coal. There are problems such as low tar y...

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Problems solved by technology

However, the production cost of carbon dioxide is relatively high

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