In today's era of increasing environmental awareness, air quality has become a focal point of concern for citizens. Among the six basic controlled pollutants listed in China's "Environmental Quality Standards for Air," carbon monoxide (CO) has quietly become the new hotspot the field of environmental protection. Carbon monoxide has a wide range of sources and emits in large quantities, mainly from the combustion of fossil fuels in industries such asurgy, chemical industry, etc., waste incineration, and vehicle exhaust. In recent years, with the continuous deepening of China's atmospheric pollution prevention and control work the emission of conventional atmospheric pollutants has been effectively controlled, and the environmental quality has been significantly improved. However, the emission problems of some unconventional pollutants have gradually come to surface, and carbon monoxide is one of them. It poses a significant threat to both human health and the ecological environment, thus becoming the focus of attention in environmental protection work. The steel industry is one of the important pillar industries of China's economy and is also one of the main sources of carbon monoxide emissions. According to relevant data, a part of the carbon monoxide emitted by China's industry comes from the steel industry, with the emission from the sintering process accounting for as high as 40% Against the backdrop of the dual carbon strategy, the governance of carbon monoxide has become the key breakthrough for the steel industry to save energy and reduce carbon. At present, are more than 500 sintering machines of more than 90㎡ in size in China, and it is expected that the average consumption of CO catalysts for sintering machine will reach 70 cubic meters. According to calculations, the demand for CO catalysts for sintering machines of more than 90㎡ in size expected to reach about 40,000 cubic meters, and the market size is around 20 billion yuan. The market prospects of the product are relatively optimistic and it is expected to become a new blue ocean in the environmental protection industry. Source of carbon monoxide For steel enterprises, carbon monoxide is produced in large and has many sources of emission, mainly from three aspects: First, the emission produced by the incomplete combustion of coal, coke, blast furnace gas, converter gas, coke oven gas during the combustion process of sintering machines, blast furnace hot blast furnaces, rolling heating furnaces, lime kilns, and self-owned power plants Second, the production process emissions from top gas pressure equalization and shutdown discharge of blast furnaces, primary smoke from steelmaking, reverse blowing gas from rolling heating furnaces and emissions from coke ovens and dry quenching; Third, the emission from the discharge of surplus gas. Among them, the concentration of carbon monoxide in flue gas at the head of the sintering machine can reach several thousand milligrams per cubic meter. Related policy requirements On the policy level, the of carbon monoxide governance has already begun. In 2018, Tangshan took the lead in issuing the "Notice on the Implementation of Production Restrictions on Enterprises with Excessive Carbon Monoxide Emission at the Head of Sintering Machines," requiring that the concentration of carbon monoxide emission at the head of sinter machines in steel enterprises in the city should not exceed 6,000 milligrams per cubic meter, marking the official start of steel carbon monoxide governance work.sequently, Handan, Linfen, and other places also followed suit, issuing a series of related policies. In August 2018, the "Handan City Steel Sintering Machine Head Carbon Monoxide Governance and Blast Furnace, Converter Discharge Control Management Plan" was officially issued; in July 2020,infen issued the "Linfen City 2020 Steel Industry CO Comprehensive Governance Implementation Plan (Trial)." By 2024, according to the incomplete statistics of Polar Star, cities such as Tangshan, Handan, Xingtai in Hebei; Jiaozuo, Anyang in Hen; Linfen, Jincheng in Shanxi have issued policies involving carbon monoxide governance.
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