【Major Equipment in the Chemical Engineering Sector】315 – The first set of multi-nozzle opposed semi-waste-boiler water-coal slurry gasification industrial demonstration unit completed on-site testing
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Comply with the Work Safety Law! Take on the role of primary responsible person! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which in turn has contributed to the swift development of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and increased use of domestic equipment. We invite everyone to share, discuss, and exchange ideas – let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ From May 27 to 29, 2022, the China Petroleum and Chemical Industry Federation organized an on-site evaluation team to conduct a 72-hour continuous operation test at Yulin Energy & Chemical Co., Ltd. of Yanzhou Coal Industry, regarding the water-coal slurry gasification technology based on the multi-nozzle opposed waste boiler-cooling process (semi-waste boiler process), which is capable of processing over 2,000 tons of coal per day per boiler. This gasification technology was jointly developed by East China University of Science and Technology, Yankuang Group Co., Ltd. (now Shandong Energy Group Co., Ltd.) and other institutions, and it received support from the key research and development program of the 13th Five-Year Plan titled “Development and Demonstration of Large-Scale Water-Coal Slurry Gasification Technology”. The successful completion of this on-site assessment represents another significant milestone achieved by East China University of Science and Technology in the field of gasification technology, in terms of advancing toward the **dual-carbon goals and improving the efficiency of coal energy utilization; it holds great importance in the development history of gasification technology in China.
During the evaluation period, all systems of the gasification unit operated smoothly, and the technical performance indicators of the unit far exceeded the specified evaluation criteria. Among them, the steam yield from the radiation waste boiler is 799 kg/1000 Nm3 (CO+H2), and the efficiency of the hot gas is 84%. The evaluation expert group unanimously agreed that this industrial demonstration unit features a high degree of automation, flexible operation control, and safe and reliable performance ； This industrial demonstration unit utilizes a radiant waste boiler gasification furnace with a water-cooled wall structure equipped with radiation shields; by integrating and optimizing the combined process of the radiant waste boiler and the quenching chamber, it recovers the high-grade energy contained in the syngas and slag effectively, generating high-pressure saturated steam to achieve efficient heat recovery ； The 2000-ton class multi-nozzle opposed waste boiler-cooling water-coal slurry gasification furnace has been used for industrial demonstration for the first time, holding significant symbolic importance for the development of coal chemical technology. It is reported that this gasification unit is currently the largest semi-blast furnace water-coal slurry gasification unit in the world. The gasification furnace began to be lifted on May 31, 2020, and successful trial operation with feedstock was achieved on December 10 of the same year. Since its first feeding, the gasification furnace has operated for a total of approximately 6,500 hours. During stable operation, in addition to maintaining its original advantages such as high carbon conversion rate, low raw material consumption, and advanced process parameters, the gasifier can also produce ~100 tons of high-pressure saturated steam per hour, resulting in high energy efficiency. This demonstration unit successfully passed the on-site evaluation, fully demonstrating the outstanding advantages of the multi-nozzle opposed water-coal slurry gasification technology in terms of high efficiency, large-scale operation, and long-term safe and stable performance. It further strengthens China’s leading position in the field of fluidized bed coal gasification technology, providing technical support for the construction of large-scale coal-based energy and chemical industrial bases in the country.
【Major Equipment in the Chemical Engineering Sector】316 - Deyang Dongguo joins forces with Xi’an Xinhai Equipment Manufacturing to develop China’s first multi-nozzle opposed water-coal slurry radiation waste boiler gasifier https://bbs.hcbbs.com/thread-3351264-1-1.html (Source: Hua Hai Chuan Liu – Haichuan Chemical Industry Forum Website)
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