Another breakthrough in multi-nozzle opposed gasification technology: a super-large gasification unit with a capacity of 4,000 tons is under construction

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Another breakthrough in multi-nozzle opposed gasification technology: A 4,000-ton super-large gasification unit is under construction. Author/Source: China Chemical Industry News; Date: 2018-09-28; Clicks: 4. It was learned at the 6th International Symposium on the Promotion and Application of Multi-Nozzle Opposed Gasification Technology held recently in Hefei that the 4,000-ton super-large water-coal slurry gasification unit and the 2,000-ton waste boiler-cooling type gasification unit, developed jointly by Yankuang Group and East China University of Science and Technology, have entered the stage of practical implementation. These units are at the forefront of advancements in gasification technology both domestically and internationally, offering new options for the technical selection in coal chemical projects. They can further improve gasification efficiency and contribute to energy conservation and emission reduction. According to Meng Xiangjun, the chief engineer of Yankuang Group Co., Ltd., through the joint efforts of Shandong Yankuang Guotuo Technology Engineering Co., Ltd. and the Clean Coal Research Institute at East China University of Science and Technology, the multi-nozzle gasification technology has been successfully transferred to 57 projects both domestically and internationally through technology licensing. A total of 158 gasification units have been built as a result, and this technology has become one of the preferred options for coal chemical enterprises. Professor Guang Suo from East China University of Science and Technology mentioned that, following the construction and operation of industrial demonstration units for water-coal slurry gasification with capacities of 1,000 tons, 2,000 tons, and 3,000 tons, during the 13th Five-Year Plan period, Yankuang Group and East China University of Science and Technology jointly undertook a key research and development project titled “Industrial demonstration of ultra-large-scale water-coal slurry gasification units capable of processing 4,000 tons of coal per day per furnace.” This is currently the water-coal slurry gasification furnace with the highest processing capacity planned to be built in the world, and its construction is underway at Yankuang Inner Mongolia Rongxin Chemical Co., Ltd. and Inner Mongolia HuiNeng Coal Chemical Co., Ltd. Xie Kechang, former vice president and academician of the Chinese Academy of Engineering, said at the meeting that he hopes for further innovation in this technology; for example, considering direct gasification of coal at the mine site, combined with the construction of gasification islands, to transport the synthesized gas to enterprises in order to improve gasification efficiency. At the same time, it is hoped that the coal gasification industry will move toward modernization, larger scale operations, combined production processes, the use of multiple feedstocks, and standardization. By integrating technologies such as big data, artificial intelligence, and blockchain, intelligent and green coal chemical industries can be developed. Li Yongwu, former president of the China Petroleum and Chemical Industry Federation, emphasized that the various parameters of the multi-nozzle opposed water-coal slurry gasification technology are at the world’s leading level. It is hoped that in the future, China’s coal gasification technology will see further progress in terms of larger-scale installations, with increased investment in fundamental research, as well as a better understanding of the mechanisms by which pollutants are transported and transformed during the coal gasification process. Gu Zongqin, director of the Petroleum and Chemical Industry Planning Institute, stated that the coal chemical industry should make significant efforts to improve its capabilities in terms of technical equipment. In the field of coal gasification, key breakthroughs should be made in technologies and equipment such as 8.7 MPa large-scale water-coal slurry gasification, large-scale dry coal powder gasification, and gasifier waste heat recovery systems. Wang Shoujian, former chief engineer of China National Chemical Engineering Corporation, said that in the current market applications of mainstream coal gasification technologies, the multi-nozzle opposed water-coal slurry gasification technology accounts for 13.44% of the market share, ranking first among all types of gasification technologies; it also has the highest daily coal gasification capacity. Ranked by daily gasification capacity, the four main wet gasification processes show that the multi-nozzle (four-nozzle) type also comes first. This conference was hosted by the China Petroleum and Chemical Industry Federation, organized by Yankuang Group and East China University of Science and Technology, with over 230 experts and representatives from the coal chemical industry in attendance.