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Progress in the construction of the first-phase project of Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project Author/Source: Coal Chemical Engineering 114 Forum Date: 12-16-2019 Clicks: 45 On December 11, the 35kV circuit of the plant’s power supply system, which is part of the first-phase project of this initiative, was successfully brought online. The length of the connection line is 2,360 meters, with 3 intermediate joints; the two ends are KP plug-and-play terminals that are connected to the 35 kV Schneider switchgear at the Weihé Substation and the Juxi Substation. The energization of the tie line is a key milestone in the whole plant power supply for the system project, and it also indicates that Juxi Substation is ready to supply power to various 35kV installations. It is reported that the EPC general contractor for the design, procurement, and construction of the entire plant system for the Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project (Phase 1) is Donghua Engineering Technology Co., Ltd. The first-phase project of the Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project is a preliminary phase of this project (the CTC Project). It also serves as a facility for producing methanol raw materials to support the already completed Shenhua Shaanxi Methanol Downstream Processing Project (SSMTO). The construction scope includes an annual production capacity of 1.8 million tons of methanol along with 400,000 tons of ethylene glycol per year. The facility comprises various process units such as air separation, gasification, shift reaction, acidic gas removal, methanol synthesis, sulfur recovery, and ethylene glycol production, along with the associated utility systems and auxiliary facilities. Once completed, it will enable integrated production and management together with the SSMTO project. It is reported that General Electric (GE)’s high-efficiency water-cooled coal slurry gasification technology was selected for the project in order to promote the clean, comprehensive, and efficient utilization of coal. The project utilizes 5 gasification furnaces of the single-series type, with a coal feeding rate of 3,100 tons per day on a dry basis, operating in a slurry-cooled process; the pressure level is 6.5 MPa. These furnaces are equipped to produce 1.8 million tons of methanol per year (for olefin production), as well as 400,000 tons of ethylene glycol and other high-value downstream products. Methanol synthesis uses the David technology, while ethylene glycol employs the Shanghai Pujing technology. The Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project (referred to as the CTC Project) was officially approved by the National Development and Reform Commission on March 16, 2015 (Document No. FGNY [2015] 508). It is, to date, the coal chemical project with the largest total investment in the world; the total investment for the project amounts to 120 billion yuan.