【Ten Years of Rapid Development in Chemical Equipment】Development of Key Materials for VOC Oxidation Catalysis in Coal Chemical Industry and Engineering Demonstrations from 2017 to 2022
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Witnessing the decade-long rapid development of chemical processing equipment, we celebrate the prosperity and strength of modern China. Greater participation by everyone makes things even more exciting; with you here, Haichuan becomes even better. This is just a preliminary effort to encourage further engagement in forum discussions – replies will be rewarded, and discussions are welcome. ------------------------------------------------- On December 14, 2022, the coal chemical volatile organic compounds (VOCs) oxidation catalyst developed independently by the Beijing Low-Carbon Clean Energy Research Institute of **Energy Group (referred to as “Low-Carbon Institute”) completed 600 hours of stable operation tests on the VOCs exhaust side-stream pilot platform at Ningxia Coal Industry’s coal-to-oil facility, achieving the desired results. This marks significant progress in the development of VOCs control technologies for coal chemical industry by the Low-Carbon Institute. **The energy group’s scientific and technological innovation project, \"Development of Key Materials for the Catalytic Oxidation of VOCs in Coal Chemicals and Related Engineering Demonstrations,\" is carried out jointly by the Low-Carbon Research Institute and Ningxia Coal Industry under a production-research integration model. The Environmental Protection Technology Research Center of the Low-Carbon Research Institute (hereinafter referred to as the Environmental Protection Center) is responsible for analyzing VOCs emission patterns, developing core catalysts, and creating essential equipment; meanwhile, Ningxia Coal Industry’s Coal-to-Oil Division is in charge of building pilot-scale testing platforms, conducting long-term evaluations of catalysts, and managing the construction and operation of VOCs treatment facilities.
This pilot-scale test addressed the issue of VOC emissions in the decarboxylation off-gases from coal-to-oil Fischer-Tropsch synthesis. By using a highly hydrothermally stable oxidation catalyst developed by the Environmental Catalysis Team at the Environmental Protection Center of the Low-Carbon Research Institute, it was possible to reduce the concentration of non-methane total hydrocarbons in the exhaust gas to less than 60 milligrams per cubic meter, under conditions where the design space velocity was exceeded by 30%, the humidity was high (with a water vapor concentration of 6–11%), and the concentration of non-methane total hydrocarbons in the inlet gas ranged from 680 to 960 milligrams per cubic meter. This figure is significantly lower than the current allowable limit for VOC emissions in coal chemical industries, which is 120 milligrams per cubic meter. VOCs are a key focus for air pollution control in China during the 14th Five-Year Plan period, with a requirement to reduce emissions by 10% by 2025 compared to 2020. The VOCs emitted organizedly by coal chemical enterprises have a large volume, low concentration, and complex composition; they are also accompanied by substances such as hydrogen sulfide and carbon monoxide, posing significant challenges for their comprehensive treatment. Focusing on the needs of the group company in terms of VOCs control in its coal chemical industry, the Environmental Protection Center of the Low-Carbon Institute has been working on the development of relevant treatment technologies since 2018. It has developed catalytic oxidation destruction processes that are more low-carbon, efficient, and safe, taking into account the VOCs emission characteristics of different industrial processes. A series of oxidation catalysts have been created, with their key performance indicators reaching international advanced levels; these catalysts are now available for industrial-scale production. The success of this pilot test has laid a technical foundation for the application of the VOCs oxidation catalysts, owned as intellectual property by **Energy Group, in two catalytic oxidation treatment projects for coal-to-oil production at Ningxia Coal Industry, each with a capacity of 100,000 cubic meters per hour. The Low-Carbon Research Institute will continue to work closely with Ningxia Coal Industry and Chemical Company to promote the application of this technology in VOCs treatment projects such as those in gasification and purification low-temperature methanol washing units, polyolefin silo exhaust gases, and tank farm units, thereby contributing to the \"high-end, diversified, and low-carbon\" development of the group company’s coal chemical industry.
【Ten Years of Great Development in Chemical Equipment】Ongoing updates to the summary post; feel free to join the discussion: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Network – Chemical Industry Forum)
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Currently, for general projects, the requirement is that the VOCs (total hydrocarbons other than methane) removal rate exceed 95%, and this target has not yet been achieved.
VOCs are a key focus for air pollution control in China during the 14th Five-Year Plan period, with a requirement to reduce emissions by 10% by 2025 compared to 2020. Promote the application of this technology in VOCs treatment projects such as low-temperature methanol washing units for coal gasification purification, exhaust gases from polyolefin silos, and tank farm units, to support the \"high-end, diversified, and low-carbon\" development of the group company’s coal chemical industry.