Device and technique of producing liquid ammonia by coke oven gas and methanol relief gas

Abstract

The invention relates to a device and a technique of producing liquid ammonia by coke oven gas and methanol relief gas. A methanol relief gas material pipe is connected with a relief gas hydrogen extraction system; the relief gas hydrogen extraction system is connected with a desorption gas compressor and a hydrogen-nitrogen combination compressor; the hydrogen-nitrogen combination compressor is connected with a deoxidizing drying device, a nitrogen material pipe and an ammonia synthesis system; the ammonia synthesis system is respectively connected with an ammonia synthesis circulator, an ice machine system and a liquid ammonia spherical-tank; the coke oven gas material pipe is connected with the combination compressor; the combination compressor is connected with an active carbon rough-distillate device; the active carbon rough-distillate device is connected with a temperature change absorption system; the temperature change absorption system is connected with the coke oven gas hydrogen extraction system; the coke oven gas hydrogen extraction system is connected with a hydrolysis fine-desulfurization system; the hydrolysis fine-desulfurization system is connected with the deoxidizing drying device; the deoxidizing drying device is further connected with the combination compressor; and the combination compressor is further connected with the hydrogen-nitrogen combination compressor.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a device and a process for producing liquefied ammonia, in particular to a device and a process for producing liquefied ammonia by using coke oven gas and methanol purge gas. Background technique [0002] The main raw materials for ammonia synthesis are natural gas, naphtha, heavy oil, and coal. At present, my country has mastered a variety of gas-solid-liquid raw materials such as coke, anthracite, lignite, coke oven gas, natural gas, oilfield associated gas, and liquid hydrocarbons. Technology for the production of synthetic ammonia. The traditional synthetic ammonia production method consumes high energy, outdated equipment, cumbersome process and low output. [0003] The traditional method of producing synthetic ammonia cannot meet people's demand for the utilization of synthetic ammonia. Therefore, the development of an equipment and process for producing liquid ammonia with...

AI Technical Summary

Problems solved by technology

The traditional synthetic ammonia production method consumes high energy, outdated equipment, cumbersome process and low output

[0003] The traditional method of producing synthetic ammonia cannot meet people's demand for the utilization of synthetic ammonia. Therefore, the development of an equipment and process for producing liquid ammonia with coke oven gas and methanol purge gas has broad market prospects.

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