Zhonghua Chemical Saiding Coking has newly obtained a patent for \"pressurized purification of coke oven gas\"

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According to information from the Intellectual Property Office as of August 7, 2025, **Zhonghua Chemiciang Sailing Coking (Shanxi) Engineering Technology Co., Ltd. has obtained a patent titled “A Pressurized Purification System for Coke Oven Gas,” with the approval announcement number CN223189159U; the application was filed in September 2024. According to the patent abstract, the present utility model relates to the technical field of coke oven gas purification. It proposes a pressurized purification system for coke oven gas, which includes an initial cooler, a blower, and a compressor. This utility model incorporates a blower to raise the pressure of coke oven gas to 4000–6000 Pa(G), thereby facilitating control of the suction force ahead of the machine and stabilizing the pressure in the gas collection ducts. It also provides an appropriate operating pressure for subsequent benzene washing processes. A benzene washing tower is placed after the blower, which helps to remove substances such as benzene and naphthalene from the coke oven gas, thus ensuring a high yield of benzene. Moreover, the precipitation of naphthalene does not affect the stable operation of the subsequent equipment. The use of a first mist catcher and a second mist catcher enables the complete removal of tar from the gas ； This utility model features a compressor installed after the benzene washing process; the compressor pressurizes the coke oven gas to 0.6–0.8 MPa(G) for subsequent ammonia washing and desulfurization. Under this pressurized condition, the efficiency of ammonia washing and desulfurization is enhanced, while the size of the equipment and pipelines is reduced, thereby enabling the miniaturization of equipment for the pressurized purification of coke oven gas. Zhonghua Sai Ding Coking (Shanxi) Engineering Technology Co., Ltd., established in 2020 and located in Changzhi City, is a company that is primarily engaged in building decoration, renovation, and other construction-related activities. The registered capital of the company is 30 million RMB. According to the big data analysis provided by Tianyancha, Zhonghua Chem Caiding Coking (Shanxi) Engineering Technology Co., Ltd. has participated in 275 bidding projects and holds 47 patent records; in addition, the company possesses 7 administrative licenses.