How is the gray pyrolysis gasification technology performing at Fengxi Group?

I’ll also pay attention to the domestic technology; it’s really worrying

As far as I know, the ash fusion furnace of Toyoki is performing quite well. As China’s first set of 1.0MPa gasification furnaces, it is normal for there to be problems, and some time is needed to figure things out. The main constraint at present is the lack of oxygen; Toyohashi is building an oxygen production plant with a capacity of 28,000, and it is expected to come online soon.

Fengxi’s ash fusion technology is a method promoted in Shaanxi and Shanxi provinces, right? Could you tell me about its operating parameters, gas production volume, and coal input amount? There is also a 0.0 MPa semi-industrial testing setup from the Shanxi Coal Chemistry Institute that was successfully tested at Jinmei Group. How are they?

On December 18, reporters learned from the Gasification Engineering Research Center of the Shanxi Coal Chemistry Institute of the Chinese Academy of Sciences that the ash polymerization gasification technology, which possesses complete independent intellectual property rights in China, completed 72 hours of pressurized gasification tests using a semi-industrial test facility in Taiyuan, indicating that this technology is now ready for industrial demonstration. This is another challenge that China’s coal gasification technology has overcome on the path of independent innovation. 　　 Gray fusion gasification technology is a new type of gasification technology developed in China in the early 1990s, with no precedents either domestically or internationally. This technology features strong adaptability to different coal types and low investment costs, and a pilot industrial plant under atmospheric pressure was successfully developed in 2001. To meet the demands of large-scale coal gasification technology and accelerate the development of larger-scale pressurized systems for this technology, in April 2005, with the approval of the Shanxi Provincial Development and Reform Commission, the Shanxi Jincheng Anthracite Coal Industry Group and the Shanxi Institute of Coal Chemistry of the Chinese Academy of Sciences jointly established the Shanxi Powder Coal Gasification Engineering Research Center. With an investment of 35 million yuan, the center built a semi-industrial pressurized ash pyrolysis technology platform by the end of 2006. Ignition took place on December 11, 2007, followed by a 72-hour test period, which was completed on the afternoon of the 15th. During the operation, leaders and experts from the Shanxi Provincial Development and Reform Commission, the Economic Commission, the Chemical Industry Office, as well as the Second Chemical Industry Design Institute and Sinopec Engineering Construction Company were on site to observe and provide guidance. It is understood that the operating conditions of the semi-industrial pressurized ash pyrolysis gasification technology platform are identical to those of industrial production units, and the process data obtained from the tests can serve as a basis for the engineering design of industrial gasification plants. The designed operating pressure for this technology platform is 1–3 MPa, and gasification tests at higher pressures will be carried out gradually in 2008. At the test site, the reporter interviewed Ma Xiaoyun, chief engineer of the Gasification Engineering Research Center at the Shanxi Coal Chemistry Institute of the Chinese Academy of Sciences. He said that during this pressurized gasification test, the entire process operated stably for 76 hours, with a daily coal processing capacity of 60 tons; the key technical parameters met the design requirements, and the pressure amplification design for the gasification furnace as well as the engineering validation of the associated critical equipment were completed. Based on the test results, the daily processing capacity of an industrial-scale gasifier at 1 MPa will increase from 100 tons at atmospheric pressure to 500–600 tons, with a single unit being capable of producing 100,000–120,000 tons per year of ammonia (methanol). Furthermore, pressurizing the gasification system can reduce the energy consumption for compressing syngas by 50%, and it can provide complete gasification process technologies and equipment to help numerous small and medium-sized fertilizer enterprises in China carry out energy-saving and consumption-reduction upgrades.