On May 21, 2020, Shaanxi Coal Group Yulin Chemical Co., Ltd. undertaken by Donghua Technology held a 15 million tons / year coal quality clean and efficient conversion demonstration project. The internal design of the olefins, aromatics and deep processing project was successfully held. Donghua Technology Party committee member and deputy general manager Zhu Dinghua, deputy general manager Chen Zhirong and senior expert Wu Danong attended the meeting.

Shaanxi Coal Yulin Chemical Coal Quality Clean and Efficient Conversion Demonstration Project Among them, 15 million tons / year coal quality clean and efficient conversion demonstration project construction content includes 13.5 million tons / year pulverized coal medium and low temperature pyrolysis, 5.6 million tons / year methanol, 2 million tons / year methanol-to-olefins and downstream deep-processing projects and supporting equipment such as downstream polyethylene, polypropylene, butadiene, acrylic acid and esters. The project covers an area of 11,782 acres. The project has obtained the Shaanxi Provincial Development and Reform Commission road, and has handled the site selection and Qingshui Industrial Park access agreement.

Continuous experiment finally succeeded

From May 13th to 14th, 2020, Yulin Chemical's 15 million ton / year coal quality clean and efficient conversion demonstration project olefins, aromatics, and deep processing engineering general design opening union was successfully held in Chengdu. The meeting discussed and adopted the overall design schedule plan, design scope and division of labor, project coordination procedures and other matters. At the same time, the in-depth discussion on the relevant plant-wide plans, design ideas and principle issues laid the foundation for the overall design.

From May 19th to the 20th of the same year, Shaanxi Coal Yulin Chemical Phase I 1.8 million tons / year ethylene glycol project gasification unit gasification frame Ⅰ-2.500m foundation platform and slag water treatment Ⅰ foundation platform completed concrete pouring, marking The second progress control point of the gasification frame construction of the gasification unit was successfully completed, which laid a solid foundation for the next step of the construction of the gasification concrete frame structure and the slag water treatment concrete frame structure.

China Tianchen Engineering Co., Ltd. is the general contractor of the project, and is responsible for all construction tasks in the plant including design and procurement. It is planned to be completed and put into production on June 10, 2021. The gasification plant includes two gasification frames, I and II, each frame The main body has ten floors, of which the first to eighth floors are reinforced concrete structures, the ninth to tenth floors are steel structures, and the total height of the frame is 77 meters. It is one of the main frame structures of the Yulin Chemical Glycol Project. The slag water treatment of the gasification unit includes two frames, I and II, each frame has a total of four layers, and the total height of the frame is +30.500 meters. The gasification device adopts the German Colin CCG overhead multi-nozzle dry powder coal gasification process technology, a total of 5 gasification furnaces, and the device produces more than 700,000 standard cubic meters of synthesis gas per hour. It is the world's largest Colin dry powder coal gasification demonstration device. Editor / Chai Yue