Successful initial operation of the 1# gasification furnace in Jimin Kexin’s industrial gas centralized supply project

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Successful commissioning of the 1# gasifier in Jimin Kexin’s industrial gas centralized supply project – first feed operation completed. Author/Source: Huahua Network, Coal Chemicals. Date: July 22, 2020. Clicks: 319. At 3:58 p.m. on July 18, the 1# gasifier in Jimin Kexin’s industrial gas centralized supply project (also known as the Ga’an project), which was constructed by Wuhuan Engineering Company, was successfully commissioned after its first feed operation. This represents another major critical milestone for the project, following the initiation of the high-temperature drying process for Reactor No. 1 on June 5. To date, the gasification unit has been operating stably. Once the furnace system has accumulated sufficient heat, the gasifier will gradually switch to coal combustion mode and gasification mode, taking a solid step forward toward enabling the full operation of the unit. The gasification unit of the Ga’an project utilizes Huangtai furnace gasification technology (oxygen-enriched atmospheric pressure circulating fluidized bed gasification technology). There are a total of 16 atmospheric pressure circulating fluidized bed gasifiers (CXL6000I); four of them form one series, and each gasifier produces 67,900 Nm3/h of industrial gas on a dry basis. All components of this device are domestically produced, and it can recover as much usable energy as possible while meeting the total demand for fuel gas, thereby achieving high efficiency, energy savings, and environmental protection. The Ga’an Clean Industrial Gas Central Supply Project is located in Ga’an City, Jiangxi Province, which is known as the \"China’s Building Ceramic Industry Base.\" The project is carried out by Jimin Kexin (Ga’an) Clean Energy Co., Ltd., with a total investment of around 6.5 billion yuan. It covers an area of over 1,600 mu, and aims to build a complete coal-based clean industrial gas plant capable of producing 13 billion Nm3 of clean industrial gas per year, with a heat value of 1,500 kcal/Nm3; meanwhile, a power generation facility that makes use of waste heat and energy will also be established. The project will be constructed in phases to supply clean industrial gas to enterprises in the ceramic industry base. The project consists of a gasification unit, waste heat and energy recovery power generation units, air separation units, utility systems and auxiliary facilities, as well as a gas pipeline network within the park. The gasification unit uses the CXL6000I circulating fluidized bed oxygen-enriched gasifier, which was jointly developed by the Institute of Engineering Thermophysics of the Chinese Academy of Sciences and Huangtai Gas Furnace Co., Ltd.; there are a total of 16 such gasifiers with a capacity of 72,000 Nm3/h each ； The waste heat and waste energy power generation unit includes 3 130T boilers, 3 N45 turbines, and 1 C25 turbine ； The air separation unit uses 2×32000 air separation. Wuhuan Engineering Company, a subsidiary of China Chemical Engineering, serves as the EPC contractor for the project’s overall design and main facilities. Construction of the project began on November 16, 2018, and it is carried out in two phases: the first phase aims to produce 9 billion Nm3/year of industrial gas, while the second phase aims to produce 4 billion Nm3/year of industrial gas, which will be supplied to over 40 enterprises in the ceramics industry as clean coal-based industrial gas.