【Ten Years of Rapid Development in Chemical Engineering Equipment】From 2012 to 2023, circulating fluidized bed gasification projects achieved 900 days of continuous and stable operation per furnace

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Ten years of rapid development in chemical engineering technology – praising the prosperity and strength of modern China. This is just a starting point; more participation will make things even more lively. With you here, HaiChuan becomes even better. [Ten Years of Development in Chemical Engineering Equipment] – continuous updates and summaries available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html. We encourage everyone to participate more in the forum discussions to enhance quality awareness and promote high-quality development. ----------------------------------------- As of 9:00 on August 27, 2023, Unit 3 of the Xiamen Xiangsheng Indonesian circulating fluidized bed gasification project, constructed by Zhongke Hefei Gasification Technology Co., Ltd. (hereinafter referred to as “Zhonghe Gasification”), has achieved 900 days of continuous and stable operation, setting another record for the continuous operation of circulating fluidized bed gasifiers using high-moisture lignite as raw material. Furthermore, the continuous operation time of Units 1 and 4 of this project has also exceeded 600 days each, while the continuous operation time of Unit 2 is approaching 500 days, thereby ensuring the long-term safe and stable operation of the entire project. The project is located in Konawe Regency, Kendari City, South Sulawesi, Indonesia. It involves the construction of a gas station to support an integrated stainless steel smelting plant in the area, with an annual production capacity of 2.5 million tons; the industrial gas produced will be used as fuel for the rotary kilns in the nickel-iron production lines in the workshops. In view of the high moisture content (up to 40%) of the local lignite, as well as its poor mechanical strength and thermal stability, Zhonghe Gasification employed circulating fluidized bed gasification technology to build 4 powder coal gasifiers for the client, each with a capacity of 80,000 Nm3/h. This technology can handle coal with a high moisture content; it does not require drying before being fed into the gasifiers, thereby enabling the clean and efficient utilization of low-quality coal in the region. Since its official commissioning in 2021, the project has been operating smoothly with excellent performance metrics. Previously, coal injection was used to supply heat to the rotary kiln; this process had certain requirements regarding the quality of raw coal, resulting in high raw material costs. Moreover, coal powder is directly injected into the furnace for combustion, and the noise and dust generated during the powder preparation and injection processes severely pollute the local environment and pose a threat to the health of the operators. Replacing coal powder with gas has significantly reduced the cost of raw coal, while also addressing pollution issues. **It has freed up labor in the refineries, increased the level of automation in these facilities, and ensured the quality of the end products; the operational results have been praised by the owners. The long-term stable operation of the Xiamen Xiangsheng Indonesia project signifies a major success for circulating fluidized bed gasification technology in the industrial application of high-moisture lignite, further confirming its adaptability to different coal types. Previously, this technology has been tested in two projects in Xinjiang’s Yihua and Guizhou’s Hongsheng to verify its applicability to high-alkali coal and anthracite. As the industrialization platform for the CAS Hongguang special project titled \"Industrialization of Circulating Fluidized Bed Gasification Technology,\" Zhonghe Gasification has successfully implemented the commercial use of circulating fluidized bed gasification technology in industrial fields such as coal-to-syngas production and coal-to-clean-gas production. It has also established a number of high-quality demonstration projects that deliver benefits in terms of economy, society, and the environment. In the future, Zhonghe Gasification will continue to promote the application of circulating fluidized bed gasification technology in various fields, drive technological innovation in the industry, provide clean energy solutions for enterprises, and achieve high-quality development in the coal gasification and environmental protection sectors.