On the morning of November 19, in order to solidly promote the 1.8 million tons/year ethylene glycol project and create a national high-quality project, Shaanxi Coal Group Yulin Chemical Company invited relevant leaders and experts from the China Construction Enterprise Management Association and the China Chemical Construction Enterprise Association to come At the project construction site, the first consultation was conducted on the quality control management of the entire project.
According to the meeting arrangement, Zhang Guoyi, director of the Office of the Chief Engineer Working Committee of the China Construction Enterprise Management Association, discussed the importance and history of carrying out “whole-process quality control management consulting services” in the field of national engineering construction. The role was explained, and based on the actual situation of this project, the core ideas, consulting work content, methods and essential characteristics of the “Quality Control Management Regulations for the Whole Process of Construction Projects” and the “Guidelines for Quality Behavior for the Whole Process of Construction Projects” were analyzed and explained. Subsequently, the Quality Management Department reported on the basic situation of the 1.8 million tons/year ethylene glycol project, the deployment of excellence and the progress of quality control throughout the project. Tang Zhiqiang, leader of the expert group, introduced the division of labor of the expert group and the specific arrangements for on-site consulting services.
On November 17, in order to ensure the successful start-up of the 1.8 million tons/year ethylene glycol project after its completion, Shaanxi Coal Group Yulin Chemical Company held a special discussion at the project site Ability to face existing problems head-on, predict and assess risks, and formulate countermeasures.
At the meeting, the Production and Production Preparation Department reported on the problems existing in the personnel reserve, technical preparation, test run plan preparation and other aspects of the project’s one-time successful start-up, and proposed the personnel recruitment, practical training and specific test run process. Guarantee measures for feeding, safety, vehicle tripping, stable operation of public works, and linked commissioning.
The person in charge of each project department and relevant personnel discussed the equipment technical and process problems, existing risks and solutions, such as coal type determination, equipment antifreeze, nitrogen preparation, pipeline purging, sewage treatment and zero discharge. reported.
After listening to the report, the company’s chief engineer Liu Wansheng answered the existing problems one by one, combining interlocking debugging before material input, optimization of the isolation plan, “three checks and four determinations” work, and the quality of the construction process, etc. Suggestions were given, specific requirements were made, and work responsibilities were clarified.
Wang Huimin, deputy secretary of the party committee and general manager of the company, pointed out in his speech that the civil engineering work of the project has been basically completed, and each device has entered the comprehensive installation stage. It will enter production and operation next year. Can it be successfully started at one time? It is very important and is also a key indicator to test the success of project construction.
Yulin Chemical 1.8 million tons of ethylene glycol project
Yulin Chemical is in Yushen Industrial Zone Qingshui Industrial Park implements the construction of a demonstration project for the separation and utilization of coal to produce new chemical materials. As the largest coal chemical project currently under construction in the world, this project covers a total area of approximately 13 square kilometers, has a total planned investment of 126.2 billion yuan, and can convert more than 24 million tons of coal per year.
The project is divided into two phases and four phases of construction, including a total of 27 process devices and supporting public works, mainly including 15 million tons of medium and low temperature pyrolysis of coal, 5.6 million tons of methanol, and 1.8 million tons of ethylene dioxide. Alcohol, 2 million tons of MTO and downstream products using these as intermediate raw materials.
The first phase of the project invests approximately 70 billion yuan to build 1.8 million tons/year of ethylene glycol, 5.6 million tons/year of methanol, and 2 million tons/year of olefins. It will also produce a large number of olefin downstream fine chemical products.
The 1.8 million tons/year ethylene glycol project is the first phase of the project. It is also the largest coal-to-ethylene glycol project currently under construction in the world, with an estimated investment of 26.5 billion yuan. The project adopts Kelin’s patented dry pulverized coal gasification technology and Japan’s patented technology for producing ethylene glycol from high-chemical synthesis gas. Shaanxi Coal Group Yulin Chemical Co., Ltd. and Japan High Chemical Technology Co., Ltd. jointly invested in the establishment of Shaanxi Coal Group Yulin Chemical Yugao Chemical Co., Ltd. to build and operate oxalate ester production and oxalate ester hydrogenation to ethylene glycol units.
One of the overall goals set by the project construction work is that on June 30, 2021, the project will have a 1.8 million tons/year ethylene glycol project in the first phase and a 1.2 million tons/year powder project in the second phase. The coal pyrolysis and 500,000 tons/year coal tar deep processing industrial demonstration units have both reached mechanical completion.
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