3D printing microchannel reactor for production of natural gas by coal gas and printing process thereof

Abstract

The embodiment of the invention discloses a 3D printing microchannel reactor for production of natural gas by coal gas. The 3D printing microchannel reactor is formed by a plurality of same modular units which are connected in series and / or in parallel in array arrangement. Each module unit comprises a protecting shell made from steel and a reaction catalytic inner core made from nickel. A plurality of catalytic channels are arranged in the reaction catalytic inner core. Microporous reaction interfaces are formed by high-temperature induction on the inner surfaces of the catalytic channels andpickling and alkali dissolution. The invention also discloses a 3D printing process which is characterized by comprising a printing process of a 3D model and a post-processing process of the D3 printing model. The microchannel reactor can be prepared quickly and stably, can be formed primarily without assembling and secondary processing, and the microchannel reactor can be accumulated modularly.Meanwhile, catalysts formed in the microchannel pores are wear-resistant without carbon deposition and pulverization to block the channels, so that the reaction speed is high and the production efficiency can be improved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of chemical equipment, in particular to a 3D printing microchannel reactor for gas to natural gas and its printing process. Background technique [0002] With the development of the economy, the problem of air pollution is becoming more and more serious. Coke oven gas is a by-product of the coking process. However, because most coking enterprises in my country fail to recover coke oven gas economically and effectively, a large amount of coke oven gas is directly discharged and burned, which not only causes great economic losses, but also causes a great waste of resources, and also increases the burden on the surrounding areas. environmental pollution in the area. Recycling coke oven gas to produce natural gas can reduce the economic loss of coking enterprises, save energy, reduce pollutant emissions, realize the green development of industrial enterprises, and produce good economic,...

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Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a 3D printing microchannel reactor for producing natural gas from coal gas and its printing process, so as to solve the problems in the prior art that the processing of the microchannel reactor remains unchanged, requires later modification and assembly, and has unsatisfactory catalytic effects

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