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Multiple projects for Yulin Chemical Company’s 1.8 million tons per year ethylene glycol production facility have commenced! Author/Source: Coal Chemical Engineering 114 Forum Date: 2020-04-13 Clicks: 8 On April 10, a grand ceremony was held to mark the start of construction of the central control building, the main substation, and the plant’s pipeline corridors for Yulin Chemical Company’s 1.8 million tons per year ethylene glycol production project. At 9:58 a.m., upon the order given by the person in charge of the auxiliary project department, salutes were fired throughout the site, marking the official start of construction on the three main components of the 1.8 million tons per year ethylene glycol auxiliary project. It is understood that the Public Utility and Auxiliary Engineering Project Department is responsible for the construction of 42 major items related to the plant’s public utilities, auxiliary facilities, and storage and transportation systems for the company’s 1.8 million tons per year ethylene glycol production project. The general contracting work for the design, procurement, and construction of 39 of these major items is carried out by China Global Engineering Co., Ltd., with the goal of completing the intermediate handover of all these major items by May 30, 2021. Since resuming work, the project team has focused on the key deadlines for project construction, seized opportunities and worked diligently. With the full cooperation of various relevant departments, design institutes, and the contracting party, the EPCm bidding process for the auxiliary projects was completed by the end of February ； The general contractor arrived on March 5th ； The pile foundation design was completed at the end of March ； On April 10, the conditions for on-site construction were met, securing a favorable timing for the project to commence as scheduled. On April 7, the Yulin Chemical Qingshui Industrial Park held a ceremony to start the construction of the dimethyl oxalate and ethylene glycol production units as part of Phase 1 of the demonstration project for the use of coal in various ways to produce new chemical materials, with an annual production capacity of 1.8 million tons of ethylene glycol. This marked the entry of the project into the phase of on-site civil engineering work. On April 10, the first batch of pipeline materials for the dimethyl oxalate and ethylene glycol units of Yulin Chemical’s 1.8 million tons/year ethylene glycol project arrived on site ahead of schedule, marking the official start of construction work for this project. The total length of the pipelines for the dimethyl oxalate and ethylene glycol plants is approximately 33 kilometers, with completion of construction scheduled for July 10, 2020. The device was designed, purchased, and constructed by Donghua Engineering Technology Co., Ltd., with the intermediate handover for Series III scheduled to be completed on June 30, 2021. The first phase of the Yulin Chemical “Demonstration Project for the Utilization of Coal in Different Ways to Produce New Chemical Materials” – an facility with an annual production capacity of 1.8 million tons of ethylene glycol – includes units for the production of dimethyl oxalate and ethylene glycol, as well as related supporting facilities. This facility utilizes the process technology for producing ethylene glycol from dimethyl oxalate through hydrogenation, a technology developed through collaboration between High Chemical Co., Ltd., Donghua Engineering Technology Co., Ltd., and other companies. The entire facility is divided into three series: there are 9 sets for the synthesis of dimethyl oxalate, with each set capable of producing 420,000 tons of DMO per year ； 3 sets for dimethyl oxalate distillation, with 1.26 million tons of DMO per set per year ； 3 sets for ethylene glycol production, with 600,000 tons of EG per set per year ； 3 sets of ethylene glycol distillation units, with each unit capable of producing 600,000 tons of EG per year. The “Demonstration Project for the Production of New Chemical Materials through the Differential Utilization of Coal” carried out by Yulin Chemical of Shaanxi Coal Group is currently the largest coal chemical project under construction in the world. The project covers an area of approximately 13 square kilometers, with an estimated total investment of 125 billion yuan. As a coal conversion demonstration project with the highest coal processing capacity, the greatest degree of industrial integration, the most complex technology integration, and a supply chain that is closest to the end market, this project represents, to a certain extent, the highest level of development in the coal chemical industry. It will have a profound impact on the further development and direction of China’s coal chemical industry, as well as determine the extent to which China’s coal chemical supply chain will be able to expand in the future. The project will be constructed in two phases and four stages, comprising a total of 27 process units along with associated utility systems. These mainly include the medium- and low-temperature pyrolysis of 15 million tons of coal, the production of 5.6 million tons of methanol, 1.8 million tons of ethylene glycol, 2 million tons of MTO, as well as downstream products derived from these intermediates. The first phase of the project requires an investment of around 70 billion yuan; it will involve the construction of facilities for producing 1.8 million tons per year of ethylene glycol, 5.6 million tons per year of methanol, and 2 million tons per year of olefins, as well as a large amount of fine chemical products derived from these olefins. The 1.8 million tons per year ethylene glycol plant is the first phase of this project, and it is also the largest coal-based ethylene glycol production facility under construction worldwide. The project utilizes Collin’s patented dry powder gasification technology as well as Japanese Takahashi’s patented technology for producing ethylene glycol from syngas. The estimated total investment for this project is around 26.5 billion yuan. The first phase of the project is scheduled to come online in June 2021, with the entire project to be completed and operational by the end of 2025.