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On April 13, with the pouring of the final batch of concrete completed, the main structure of the slag and water handling system for the 500,000 tons per year coal-based ethanol production facility operated by Shaanxi Yanchang Petroleum Yushen Energy Chemical Company was successfully finished, 37 days ahead of the original schedule. This capping has secured valuable time for the subsequent installation work of the gasification unit. It is understood that the slag water framework mainly includes systems such as black water flash evaporation, flocculants, and dispersants, as well as an external syngas washing system ； The framework building has a construction area of 4,460㎡ and a land area of 892㎡. The main building has 4 floors and a height of 28m; it is constructed of reinforced concrete. After the construction of the main framework is completed, secondary works such as bricklaying and plastering will be carried out. The 500,000 tons per year coal-based ethanol project of Yanchang Petroleum in Yushen utilizes the dimethyl ether carbonylation technology for ethanol production, which was developed jointly by Yanchang Petroleum and the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, to generate 500,000 tons of ethanol annually. The project involves an investment of 6.98 billion yuan and is located in the South Area of Qingshui Industrial Park, Yushen Industrial Park, Yulin City, Shaanxi Province, covering an area of 1,365 mu. Construction of this project officially began on November 6, 2018. It is planned to be completed by mid-2021, with full operation and compliance achieved by 2022. The construction scope includes a methanol complex (units such as coal unloading and storage, gasification unit, shift converter unit, purification unit, gas separation unit, methanol production unit, sulfur treatment unit, etc.), an ethanol plant (units such as dimethyl ether production, carbonylation, hydrogenation, separation, compression, heating furnaces, refrigeration stations, etc.), as well as new construction for utility systems and auxiliary facilities, with a designed capacity to convert 1.22 million tons of coal per year. Source: Refining and Petrochemical News