On the morning of April 17, Xinzhou Xinyu Coal Gasification Co., Ltd.'s 1 million tons 4.3-meter coking project was completely shut down, and replaced by a technical transformation project representing new technology and new technology, so as to achieve energy saving and consumption reduction , Comprehensive utilization of clean production, promoting economic benefits, social benefits and ecological benefits.
Relying on abundant high-quality coking coal resources, our province has long been the largest coke production and supply base in the country and even in the world. Due to the early start of development, the 4.3m coke oven accounts for a relatively large proportion, and the energy consumption level has always been at a high level. In this regard, the provincial party committee and the provincial government thoroughly implemented the spirit of the important instructions of General Secretary Xi Jinping's inspection and investigation of Shanxi's important speech, thoroughly studied and implemented the spirit of the 20th National Congress of the Communist Party of China, and took the promotion of high-quality green development of the coking industry as our province's implementation of the "double carbon" strategy , a major measure to deepen the comprehensive reform pilot of the energy revolution and promote the revitalization of the manufacturing industry, and strive to promote the coking industry to move towards the goal of high-quality development. Especially since the beginning of this year, departments at all levels in the province have firmly established the awareness of the overall situation and the concept of the overall situation, taking the complete shutdown of the 4.3-meter coke oven and the full realization of dry coke quenching as breakthroughs, deepening supply-side structural reforms, and promoting energy conservation and reduction in the entire industry. consumption, extend the industrial chain, and build a national green coking industrial base in an all-round way.
In the process of promoting the transformation and upgrading of the coking industry, our province attaches great importance to the foresight and feasibility of the top-level design, and scientifically builds relevant policy systems. Promote the improvement of technical equipment and industrial concentration. Among them, CDQ transformation and 4.3m coke oven shutdown and withdrawal work were included in the list of 180 key tasks, and a "coking and other traditional advantageous industry transformation and upgrading work promotion mechanism" was established. Goals were set at the beginning of the year, progress was asked every month, and the general account was calculated at the end of the year , Clarify the division of responsibilities, highlight daily scheduling, strengthen supervision and supervision, establish and implement "red and black lists", and fully promote the high-quality completion of various tasks.
At the same time, our province resolutely guarded the bottom line of risk during the shutdown and exit of the 4.3-meter coke oven and the transformation of CDQ, and did a good job in preventing and defusing major risks. The first is to adhere to the principle of "building first and breaking later" to ensure the stable operation of the industrial and supply chains. The coking industry is an important large-scale basic industry of the national economy and an important link in the coal-coke-steel industry chain. Our province has always adhered to the capacity replacement and construction of large-scale cokes. The annual built-up production capacity and year-end The overall production capacity of the 4.3-meter coke oven will be balanced to ensure the orderly replacement of old and new production capacity, and to ensure that there will be no major fluctuations in the coking coal, coke and steel markets. The second is to fully guarantee people's livelihood needs. In the shutdown of the 4.3-meter coke oven, the shutdown of coke ovens involving heating and gas supply for residents has always been taken as the focus. The shutdown deadline shall be put in place before the shutdown deadline, and the cities shall be urged to complete the shutdown tasks on schedule without affecting people's livelihood security. The third is to actively and steadily manage risks such as safety and environmental protection. Efforts should be made to prevent coke oven enterprises that plan to shut down from being lax about safety and environmental protection, coordinate emergency response and ecological environment departments to strengthen law enforcement supervision before shutdown and technical guidance during the shutdown process, coordinate human resources and social security departments to guide cities to do a good job in employee diversion and resettlement, Ensure that the shutdown work is safely and smoothly implemented in place.
A series of powerful and effective measures have brought about wonderful changes in the coking industry. By the end of 2022, the production capacity of large-scale coke ovens with a carbonization chamber height of 5.5 meters and above in the province will reach 90.697 million tons, accounting for 77.6%, an increase of 51 percentage points from 2017. Since 2018, our province has accelerated the shutdown and elimination of 4.3-meter coke ovens. The production capacity of 4.3-meter coke ovens in production has dropped from more than 90 million tons in 146 companies to 22.59 million tons in 28 companies at the beginning of this year, accounting for 4.3-meter coke ovens. From 62% to 16%.
CDQ is the most important energy-saving and consumption-reducing technology in the coking industry. By the end of 2022, 42 enterprises in the province with a production capacity of 80.247 million tons have completed CDQ. CDQ of 9.35 million tons of production capacity of 7 enterprises is under construction. In 2022, the average energy consumption per unit of product in the coking process of the coking industry in the province will be 124.9 kg standard coal/ton, a decrease of 14.6 kg standard coal/ton compared with 139.5 kg standard coal/ton in 2020, and the effect of energy saving and consumption reduction is obvious.
The hydrogen energy industry chain was identified as the first batch of ten key industrial chains. Four high-purity hydrogen production projects from coke oven gas were built in the province, with a production capacity of 26,500 tons per year; 10 hydrogen refueling stations and hydrogen fuel cell demonstration operation projects were built in the province. 5, and the national "hydrogen price depression" and "largest heavy truck application base" are gradually taking shape.
By October 2019, coking enterprises in the province will reach the national standard special emission limit. In 2021, our province will start the ultra-low emission transformation. By the end of 2022, 28 enterprises in the province will have completed the construction of the main project of the ultra-low emission transformation, accounting for 55% of the large coke enterprises with a stock of 5.5 meters and above. Currently, projects are under construction and proposed All are designed and constructed in accordance with ultra-low emission standards. It is expected that by the end of 2023, after all 4.3-meter coke ovens are shut down, all coking enterprises in the province will reach ultra-low emission standards.
At the same time, the deep processing of chemical production has gradually shifted from primary coke oven gas to methanol and synthetic ammonia to high-end polyester materials with higher technical content and added value, coke oven gas to ethylene glycol, carbon fiber, nylon fiber, etc. direction development.
"In the next step, we will continue to improve the level of technical equipment and intelligence in the coking industry, establish and improve a comprehensive evaluation system for coking enterprises, promote the high-end extension of the industrial chain of chemical production and deep processing, and improve the market-oriented development level of the coking industry in our province. Strengthen the training of innovative talents and team building in the coking industry." The relevant person in charge of the Provincial Department of Industry and Information Technology said.
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