Tianye Huihe New Materials Company makes a breakthrough in water-coal slurry gasification technology

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Breakthrough achieved in water-coal slurry gasification technology by Tianye Huihe New Materials Company. Author/Source: Gasification World. Date: May 8, 2023. Clicks: 16. Recently, good news came from Xinjiang Tianye Huihe New Materials Co., Ltd. (hereinafter referred to as “Tianye Huihe New Materials Company”). The research team working on this company’s “turning ordinary materials into valuable resources” project succeeded in optimizing the ratio of ingredients used in water-coal slurry gasification, enabling 30% substitution of high-quality coal with cheaper Almost East open-pit coal. It is expected that this will reduce production costs by 253 million yuan in 2023. This is a milestone in the field of large-scale water-coal slurry gasification technology in China, marking another significant step forward for the \"Jinhua Furnace 3.0\" gasification technology on its path to becoming internationally leading. In the context of optimizing the raw material composition for water-coal slurry gasification, the “Turn Stone into Gold” technology development team at Tianye Huihe New Materials Company collected samples from 53 mining sites in northern Xinjiang. Focusing on the relatively inexpensive open-pit coal from Zhundong, after more than 1,500 experiments and 95 rounds of production optimization adjustments, they determined the range of 28 physical properties for the coal to be used in water-coal slurry gasification as well as 12 different coal mixture ratios. This approach overcame the technical challenges associated with coking of open-pit coal, allowing the proportion of Zhundong open-pit coal to be increased gradually from 5% to 30%. It provided a new way to make use of this low-cost open-pit coal in the Zhundong region of Xinjiang, while also reducing the companies’ procurement costs for raw coal and expanding their sources of raw material supply. “Jinhua Furnace’s 3.0” gasification technology has been recognized as a key innovation in the coal chemical industry. The patented designs of its key components, such as the circular single-tube structure, the radial double-film water wall radiation heating surface, and the combined outlet for syngas and black water, enable an efficient combination of \"coal slurry + water wall + radiation steam generator.\" This approach resolves the issues related to stable heat transfer in the radiation-type boiler and ash clogging, resulting in a gasification furnace technology with independent intellectual property rights. Li Hui, head of Tianye Huihe New Materials Company’s research team focused on developing technologies to turn ordinary materials into valuable ones, said that they will continue to conduct in-depth research to improve energy conversion efficiency, promote the low-carbon and high-value development of modern coal chemical industry, and contribute to China’s efforts to achieve its \"dual carbon\" goals.