Recently, CAS Hefei Coal Gasification Technology Co., Ltd. (ZHGAS) signed an EPC contract with Guangxi Longzhou Xinxing Eco-Aluminum Co., Ltd. for the construction of a circulating fluidized bed (CFB) coal gasifier unit. The partnership focuses on developing a gas supply station to support alumina calcination.

Located in Longzhou County, Chongzuo City, Guangxi Province, Longzhou Xinxing operates a 1-million-ton-per-year alumina production facility. To reduce fuel gas costs, ZHGAS has designed a solution using a blended feedstock of low-cost Indonesian lignite and domestic bituminous coal. The project will deploy two CFB pulverized coal gasifiers, each with a capacity of 50,000 Nm³/h, to supply fuel gas for the calcination process. Once operational, the project is expected to significantly reduce fuel costs and improve overall production efficiency.

Fuel gas is a key energy source for industrial kilns and is widely used in sectors such as building materials, non-ferrous metallurgy, ceramics, and glass. Lowering gas production costs is essential to controlling final product pricing, and raw coal accounts for over 80% of those costs. CFB gasification technology enables the use of low-rank coal, high-ash and high-sulfur coal, and mixed coals, resulting in substantial cost savings.

ZHGAS' proprietary CGAS CFB gasification technology features strong coal adaptability, low energy consumption, high overall efficiency, minimal emissions, and proven operational reliability. It has been included in the National Environmental Technology Transformation Platform for its economic, energy-saving, and environmentally friendly advantages, and is officially recognized as a key clean coal utilization technology.

As the industrialization platform for the “CFB Gasification Technology Industrialization” project under the Chinese Academy of Sciences' Hongguang Special Program, ZHGAS has successfully demonstrated the commercial application of CFB technology in coal-to-syngas and coal-to-clean gas projects. The company has delivered a series of high-quality demonstration projects with strong economic, social, and environmental benefits.

Moving forward, ZHGAS will continue to expand the application of CFB gasification across various industries, drive innovation in clean energy technologies, and provide integrated energy solutions to support the high-quality development of the coal and environmental sectors.