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The installation of three evaporators in the zero-discharge system for the wastewater treatment plant of the 500,000 tons per year coal-based ethanol project at Yushen was successfully completed. Author/Source: Shaanxi Yanchang Petroleum Yulin Coal Chemical Co., Ltd. Date: May 12, 2022. Views: 18. On the morning of May 10, good news came from the site of the ethanol project at Yushen Energy & Chemical Company: the three evaporators, numbered 2305-V-502/525/526, part of the zero-discharge system, were successfully installed, marking the official start of the equipment installation phase for this system. It is reported that the evaporation and crystallization facility of the Yushen ethanol project’s zero-emission system is equipped with 45 containers, 18 heat exchangers, and 95 pumping units. The evaporation and crystallization technology relies on multi-effect evaporators and forced-circulation crystallizers as its key equipment; these devices enable complete separation of solids from liquids in wastewater, thereby allowing for the recycling of water resources and meeting the requirements for zero emissions. The successful lifting of the evaporator this time has laid a solid foundation for the successful construction and commissioning of the zero-emission system. The Yushen 500,000 tons per year coal-based ethanol project is currently the largest project in the industrialization of coal-based ethanol technology. With a total investment of 6.98 billion yuan, it is located in the South Area of Qingshui Industrial Park within the Yushen Industrial Park in Yulin City, Shaanxi Province. The project covers an area of 1,365 mu, and it utilizes coal-to-ethanol technology that was jointly developed by Yanchang Petroleum and the Dalian Institute of Chemical Physics, and for which independent intellectual property rights exist. The project is scheduled to be fully handed over on May 30, 2022. The construction scope includes a methanol complex (units such as coal unloading and storage facilities, gasification units, shift conversion units, purification units, gas separation units, methanol production units, and sulfur treatment units), an ethanol plant (units including dimethyl ether production, carbonylation processes, hydrogenation units, separation systems, compression equipment, heating furnaces, and refrigeration stations), as well as new construction for utility systems and auxiliary facilities; the design capacity is 1.22 million tons of coal to be converted per year. Beijing Petrochemical Engineering Co., Ltd. (Beiyou Engineering) has been assigned a total EPC contract value of 3.78 billion yuan, covering auxiliary facilities and plant-wide system projects, as well as process units and water treatment systems; it is also responsible for providing overall project management services for this initiative. As the EPC general contractor for the gasification unit of this project, Aerospace Engineering Company signed a general contract with Yushen Energy Chemical Company worth 590 million yuan; the project utilizes two 2,000-ton-class aerospace furnaces.