The coal-to-gas plant in Bintan Nanshan Industrial Park, Indonesia, uses circulating fluidized bed oxidation furnaces to ensure efficient and reliable coal-to-gas production. Five 40,000 Nm3/h circulating fluidized bed gasifiers can effectively meet the coal-to-gas demand of the alumina roaster. This integrated system can optimize the production process, maintain a stable supply of coal-to-gas, and contribute to the balanced operation of the alumina production facility.