Commissioning of the treatment project for Harbin Petrochemical’s 4,000-ton/year sulfur recovery unit

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On December 1, the first commissioning of Harbin Petrochemical Company’s key environmental protection project for 2022 – the 4,000-ton/year sulfur recovery unit – was successful, with qualified liquid sulfur being produced. Throughout the commissioning process, sulfur emissions remained within acceptable levels and were under stable control. 　　It is reported that the project to upgrade the 4,000 tons/year sulfur recovery facility began on July 13; after 122 days, the project was completed and handed over on November 16, achieving the set goals five months ahead of schedule. After the project was handed over, Harbin Petrochemical Company carried out the preparations for putting the project into operation in strict accordance with the \"Management Specifications for Production Preparation and Commissioning of Refining and Chemical Engineering Projects (Trial)\“. The relevant departments performed their respective duties, working together to facilitate the start of the project. Despite the sudden drop in temperatures and a shortage of staff, the local workshop overcame difficulties and worked hard, using the site where the new sulfur production facility was set up as a venue for organized self-study in order to carry out all the necessary preparations for starting up the operation. 　　At 9:03 on December 1, Ren Lidong, a technician with extensive experience in operating sulfur production facilities, carefully checked the key operational parameters once again. Li Xuelei, the operator who was involved in the entire project setup, worked together with technician Li Peng to adjust the volume of acidic gas and the air supply ratio for the sulfur production furnace. At the facility site, dedicated personnel were responsible for adjusting 8 key control points, including those related to the exhaust gas separation tank and the fans used in the sulfur production furnace. At 9:15, as the overall commander of the workshop gave the order to start feeding materials, operations were carried out immediately on site. After each step was completed, feedback was provided via walkie-talkie, and both internal and external operators strictly followed the operational procedures and all relevant requirements. At 9:17, the acidic gas was fed into the sulfur production furnace for adjustment of operations. At 10:27, the aminoacid-containing gas was fed into the sulfur production furnace, where the process remained stable and under control. At 11:37, liquid sulfur was produced by the liquid sulfur line; throughout the startup process, the sulfur emissions met the required standards, resulting in a successful first startup.