Detailed Engineering Design Review for the Methanol Complex of the Yushen Nenghua 500,000 tons/year Coal-based Ethanol Project

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Review of the Detailed Engineering Design for the Methanol Complex of Yushen Nenghua’s 500,000 tons/year coal-based ethanol project / Author/Source: Huahua Network – Coal Chemical Industry / Date: 2021-01-13 / Clicks: 4. A meeting to review 90% of the detailed engineering design for the methanol complex of Yushen Nenghua’s 500,000 tons/year coal-based ethanol project, which was undertaken by Beijing Petrochemical Engineering Co., Ltd., was held in Xi’an a few days ago. At the meeting, the designers provided a detailed explanation of the design plan. Youshen Energy & Chemicals effectively communicated regarding the operability and ease of maintenance of equipment, pipelines, valves, and instruments. Suggestions were put forward in terms of operation and maintenance, thereby making the piping design of the facility more complete and reasonable. The 90% model review has been successfully completed, marking the entry of the device design process into its final stages and laying a solid foundation for the full-scale on-site construction work. On January 6, the 500,000 tons per year coal-based ethanol project of Yushen Energy Chemicals reached another milestone, with the installation of the 8 tank bodies in the finished product tank area and Pump Station (II) of the auxiliary systems completed. It is understood that the 8 tanks are respectively oil sludge tanks, heavy fraction tanks, ethyl acetate tanks, and mixed alcohol tanks, with two tanks of each type. The tanks for oil sludge and heavy fractions are made of stainless steel, while those for ethyl acetate and mixed alcohol are made of carbon steel. The thickness of the stainless steel tank body is 6 millimeters, consisting of 6 layers of plate ； The carbon steel tank shells have thicknesses of 8 millimeters and 6 millimeters, and are assembled by fitting together plates of the 5th generation. The construction of each generation of plates requires tasks such as coil rolling, alignment, welding, flaw detection, and inspection. The completion of the installation of these 8 tank bodies lays a solid foundation for the subsequent construction of the entire tank area. The 500,000-ton/year coal-based ethanol project by Yushen Energy Chemical is currently the largest project in the industrialization process of coal-based ethanol technology. With a total investment of 6.98 billion yuan, the project covers an area of 1,365 mu. It utilizes coal-to-ethanol technology developed jointly by Yanchang Petroleum and the Dalian Institute of Chemical Physics; this technology is owned by them and features independent intellectual property rights. The project will be fully handed over on May 30, 2022. Beijing Petrochemical Engineering Co., Ltd. (BPCE) has been awarded an EPC contract worth 3.78 billion yuan. The scope of work includes utility facilities and plant-wide system engineering, as well as process units and water treatment systems. BPCE is also responsible for overall project management services. 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.