Composite furnace device for converting carbon dioxide and use method of composite furnace device

Abstract

The invention discloses a composite furnace device for converting carbon dioxide, which comprises a furnace body, the top and the bottom of the furnace body are respectively provided with a carbon raw material feeding port and a carbon raw material discharging device, the furnace body is internally provided with a preheating section, a dry distillation section, a reaction section and a cooling section from top to bottom in sequence, and the side walls of the furnace body corresponding to the dry distillation section and the reaction section are respectively connected with an air inlet device; and the bottom of the side wall of the furnace body corresponding to the cooling section is connected with a carbon dioxide feeding device, the side wall of the furnace body corresponding to the dry distillation section and the reaction section is connected with a reaction section gas exhaust pipe, the top of the furnace body is further provided with a tail gas exhaust pipe, and the reaction section gas exhaust pipe is connected with the tail gas exhaust pipe through a pipeline. Thermocouples are arranged on the side walls of the furnace body corresponding to the dry distillation section, the reaction section and the cooling section. According to the invention, carbon dioxide conversion is carried out by using the waste heat of the semi-coke furnace, so that the problems of a large amount of heat loss and high heat consumption in the carbon dioxide conversion process in the industrial coal-to-coke or semi-coke process in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of carbon emission reduction and coal coking equipment, and relates to a compound furnace device for converting carbon dioxide, and also relates to a method for using the compound furnace device. Background technique [0002] The research and development of carbon dioxide emission reduction technology at home and abroad is mainly in two aspects. One is to control from the source to reduce the generation of carbon dioxide. However, due to the distribution of raw materials and fuels, it is difficult to achieve full coverage. The second is to capture the carbon dioxide in the tail gas and store it or make it into dry ice and other products. However, the biggest problem with this technology is that the physical form of carbon dioxide has changed, and carbon dioxide emission reduction has not been fundamentally realized. [0003] The reaction of carbon dioxide and carbon to generate carbon monoxide is feasible in...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a compound furnace device for converting carbon dioxide, which utilizes the waste heat of the semi-coke furnace to convert carbon dioxide, and solves the problems in the prior art that cause a large amount of heat loss and carbon dioxide conversion during the industrial coal-to-coke or semi-coke process The problem of high heat consumption in the process

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