Coke with coal as raw material is the main emitter of carbon and "three wastes" According to experts, every time 1 ton of coke is produced, carbon dioxide 1 70,200 kg is emitted, and 0.55 kg of particulate matter escapes, resulting in coking wastewater1ton and waste gas 1300 1900 cubic meters. Coke has always been a key household in industrial and product structure adjustment. Under the goal of double carbon, under the premise of striving to meet the emission standards, the more effective way for coking industry to achieve the goal of double carbon is to compress production capacity. Then, what is the current situation of coking capacity reduction in various provinces?
Shanxi: only decrease, not increase, not break through the bottom line
According to the public information of Shanxi Provincial Department of Industry and Information Technology, by the end of last year, the total coking capacity in Shanxi was14.66 million tons.
By the end of last year, Shanxi had completed the three-year plan to reduce production by 510.4 million tons with a capacity of 57.87 million tons. By February of this year, the coke oven with the carbonization chamber height less than 4.3 meters in Shanxi still accounted for 45% of the total production capacity. Although this figure is far lower than 59% at the end of 20 18, it is still far higher than the national average of less than 30%.
In April, the Central First Ecological Environmental Protection Inspector Group was stationed in Shanxi. Five coking projects in this province were named: 6.5438+0.34 million tons/year coking project of Pingyao Coal Chemical Industry Group of Shanxi Province, 6.5438+0.8 million tons/year coking project of Changsheng Coal Gasification Company of Jiexiu City, 2.65438+0.6 million tons/year coking capacity replacement technical renovation project of Sheng Mao Coal Chemical Industry Group of Shanxi Province, and 3 million tons/year comprehensive utilization and renovation project of coal coke of Shanxi Juyuan Coal Chemical Industry Co., Ltd., Among them, Shanxi Hongyuan Fukang New Energy Co., Ltd. 265438+100000 tons/year coking project started construction illegally at the beginning of 20 19, and was partially completed and put into operation in June this year. The calculation shows that after all the above five projects are completed and put into operation, the actual coking capacity will increase by 6.92 million tons compared with 2065438+2009, which will bring severe challenges to the adjustment of local industrial structure and energy structure and the peak of carbon dioxide emission.
13 In May, the Action Plan for Consolidating and Improving Air Quality in Shanxi Province (202 1) issued by the Shanxi provincial government proposed that the coking industry should vigorously promote enterprises to build large-scale advanced projects with high energy-saving and environmental protection level by implementing capacity replacement on the basis of reducing the existing capacity. Specifically, accelerate the elimination of coke ovens with a carbonization chamber height of more than 4.3 meters and accelerate the construction of large-scale coking projects that have been filed. The shutdown time of the original coke oven should be implemented in accordance with the "up and down" policy defined by the provincial government; If the height of the coke oven in the coking chamber of the "going up to the next level and going down to the next level" large-scale coking project is not recorded as 4.3m, we will speed up the construction of the mainframe coke project through capacity reduction and replacement, and shut it down and eliminate it in a safe and orderly manner. At the same time, our province started the ultra-low emission transformation of independent coking enterprises (excluding coking enterprises that are shut down under the plan of "going to the top and closing the small"). Among them, the ultra-low emission transformation of coking enterprises will be completed by the end of 2023. This year, Taiyuan, Jinzhong, Lvliang, Changzhi, Linfen, Yuncheng and other cities have completed the ultra-low emission transformation of 12 coking enterprises. Before the end of 10 next year, Lvliang, Jinzhong and other areas around Taiyuan will take the lead in completing the coke oven withdrawal with a carbonization chamber height of 4.3 meters, ultra-low emission transformation of key industries, loose coal cleaning and other work.