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At 2:48 p.m. on May 1, the individual test run of the raw material air compressor for China Chemical Engineering’s Jimin Kexin Industrial Gas Central Supply Project (referred to as the Ga’an Project) was successful, marking a successful start for the project’s testing phase. It is reported that the compressor undergoing testing this time is the No. 1 raw air compressor of the project’s air separation unit, representing the first major testing milestone within the scope of the general contract awarded to China Five Rings for this project. The successful trial run of the raw material air compressor marks the completion of an important milestone for the project, as well as the beginning of more significant trial run stages. The successful trial run has created the necessary conditions for the purging of all pipelines in the plant, and it also marks the beginning of the trial run phase for the Wuhuan EPC main unit.
The Gao’an project is implemented by Jimin Kexin Gao’an Clean Energy Co., Ltd., while China Wuhuan serves as the overall project designer and the EPC contractor for the main facilities. The project is designed to produce 9 billion standard cubic meters of gas with a calorific value of 1500 kcal/Nm3 per year. It features two air separation units with a capacity of 32,000 Nm3/h each, as well as one air separation unit with a capacity of 6,000 Nm3/h. These three air separation units share two electrically driven isothermal centrifugal air compressors with a capacity of 16,000 KW each. The Ga’an Clean Industrial Gas Central Supply Project, managed by Wuhuan Company under China National Chemical Engineering Corporation, is located in Ga’an City, Jiangxi Province, which is known as the “China’s Building Ceramics Industry Base”. The project is implemented 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 utilizing 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 plant. The gasification unit uses CXL6000I circulating fluidized bed oxygen-enriched gasifiers, which were 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 plant includes 3 130T boilers, 3 N45 turbines, and 1 C25 turbine ; The air separation unit uses 2×32000 air separation systems.
Wuhuan Engineering Company, a subsidiary of China Chemical Engineering, serves as the EPC contractor for the project’s overall design and main facilities. The construction of this project began on November 16, 2018, and it is carried out in two phases: the first phase aims to produce 9 billion Nm3/a of industrial gas, while the second phase aims to produce 4 billion Nm3/a of industrial gas, which will be supplied to over 40 enterprises in the ceramics industry as clean coal-based industrial gas.
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