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On July 23, the C-105/107 tower of the 300,000 tons/year gas separation and refining device of the Shandong Qinghe Chemical Residual Oil Cracking to Chemical Raw Materials Project constructed by the Shandong Branch of China Chemical Engineering Sixth Construction Co., Ltd. was successfully hoisted. The project is located in Maqiao Chemical Industrial Park, Huantai County, Zibo City, Shandong Province, with a total investment of 624.68 million yuan. The project device uses rich gas from the residual oil cracking unit and liquefied gas from the delayed coking unit in the plant as raw materials to produce purified dry gas and purified liquefied gas, and stabilizes crude light aromatics into light aromatics as ethylene feed, which is of positive significance for accelerating the conversion of old and new kinetic energy in the local area. Since the launch of the "Anti-epidemic, Guaranteed Harvest, Double Hundred Campaign" campaign, the project has been strictly implemented in accordance with the hoisting plan to ensure that the hoisting operation is safe, efficient and controllable. The light aromatics absorption tower hoisted this time weighs 62 tons and is 40 meters high. The heavy aromatics absorption tower weighs 51 tons and is 32 meters high. They are both core towers of the project. A 500-ton truck crane was used as the main crane for the hoisting, and a 180-ton truck crane was used as the tail crane. The high-quality and high-efficiency crane was successfully put in place, marking a phased victory in the project's large-scale hoisting. Content source: Petrochemical hot spots