Coke Oven Gas Purification Technology

The raw coke oven gas generated during the coking process is a complex mixture containing methane, carbon monoxide, hydrogen, hydrocarbons, carbon dioxide, ammonia, tar, naphthalene, benzene, and other chemical byproducts. After undergoing condensation and recovery to remove tar, benzene, and ammonia, the gas still retains toxic contaminants like naphthalene, benzene, sulfides, and cyanides. Once further purified, the coke oven gas can be safely utilized as urban fuel gas, power generation fuel, or feedstock for hydrogen production. This technology is primarily employed in the metallurgical, steel, and power generation sectors. As a leading player in the gas purification industry, Shanghai Tongtong Chemical Technology Co., Ltd. has designed, built, and operated dozens of coke oven gas purification plants across China. Notably, we have delivered the country’s largest facility of its kind, capable of processing 500,000 cubic meters of gas per hour.

Technical Features:

Short process flow, high degree of automation, and easy operationAdopts an all-dry purification process, representing leading-edge technology

Implements tailored purification depth for impurities in coke oven gas based on end-use requirements, reducing purification costs

Process Overview:

According to the quality specifications of the purified gas product, a tower-type all-dry purification process is employed to remove impurities such as naphthalene, benzene, tar, hydrogen sulfide, and hydrogen cyanide (HCN) from coke oven gas, yielding purified gas that meets quality standards.