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Four new breakthroughs have been made in the development of the coking industry

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Four new breakthroughs have been made in the development of the coking industry

  • Categories:Industry news
  • Author:
  • Origin:钢联资讯
  • Time of issue:2012-12-05
  • Views:0

(Summary description)In the new century, the development of China's coking industry has made a qualitative leap. It has basically formed the production of metallurgical coke for blast furnace ironmaking with conventional machine coke ovens,

Four new breakthroughs have been made in the development of the coking industry

(Summary description)In the new century, the development of China's coking industry has made a qualitative leap. It has basically formed the production of metallurgical coke for blast furnace ironmaking with conventional machine coke ovens,

  • Categories:Industry news
  • Author:
  • Origin:钢联资讯
  • Time of issue:2012-12-05
  • Views:0
Information

In the new century, the development of China's coking industry has made a qualitative leap. It has basically formed the production of metallurgical coke for blast furnace ironmaking with conventional machine coke ovens, the production of foundry coke for machine casting with heat recovery coke ovens, and the processing of low-deterioration with vertical furnaces. Coal production of calcium carbide, ferroalloys, chemical fertilizers and other cokes is the most complete in the world, with the most extensive development and utilization of coal resources, and the most fully exploited value potential of coking coal chemical products. It is a unique coking industrial system with Chinese characteristics.
In the new century, the development of China's coking industry has made a qualitative leap. It has basically formed the production of metallurgical coke for blast furnace ironmaking with conventional machine coke ovens, the production of foundry coke for machine casting with heat recovery coke ovens, and the processing of low-deterioration with vertical furnaces. Coal production of calcium carbide, ferroalloys, chemical fertilizers and other cokes is the most complete in the world, with the most extensive development and utilization of coal resources, and the most fully exploited value potential of coking coal chemical products. It is a unique coking industrial system with Chinese characteristics.
Since the "Eleventh Five-Year Plan", the coking industry has vigorously carried out technological progress and innovation, and enterprises have become the main force in promoting the development of coking technology. Among them, some powerful coking enterprise groups, combined with their own development needs, adopted various forms such as "external introduction and internal education", and established enterprise research institutions with different forms and different research directions, and became the main body of scientific research in the coking industry. It has promoted the development process of China's coking industry from a large coke producing country to a world coking technology power, and promoted the sustainable development of China's coking industry. Specifically in the following aspects:
First, the large-scale coking process is coordinated with the development of supporting technologies.
On the basis of fully integrating the development achievements of coking technology in the world, combined with China's rich experience in coke oven construction and management, we have developed a conventional coke oven with a coking chamber height of 6.98 meters and a tamping coke oven with the world's largest coking chamber height of 6.25 meters. With its supporting coke oven machinery, etc., it has built coal humidity control projects with a processing capacity of 300 tons and 400 tons per hour, and jointly developed the world's largest 260 tons/hour CDQ unit. At the same time, we have also made substantial progress in the large-scale and automation of coke oven production.
Second, breakthroughs have been made in the resource utilization of coking coal gas and the processing of coking coal chemical products.
The coking industry is an important energy conversion industry for the processing and utilization of coal resources. In recent years, we have developed a circular economy and extended the industrial chain. While doing a good job in the recovery and processing of coal chemical products, we have paid more and more attention to the transformation and utilization of resource products such as coal gas. Since the world's first set of coke oven gas to methanol and equipment was put into operation in Yunnan Qujing Dawei Coking and Gas Co., Ltd. in 2004, my country has overcome a series of problems such as deep purification and conversion of synthetic gas, synthesis technology and equipment, and automatic control. , the production of methanol from coke oven gas has reached a scale of more than 10 million tons, and the utilization of coke oven gas resources is on the track of sound development. At present, we are developing and practicing technologies such as coke oven gas to natural gas and ethylene glycol. The introduction of technologies such as coke oven gas to methanol, dimethyl ether, ethylene glycol, natural gas, and methanol to olefins has built a new industrial development chain for my country's coking industry.
Coal tar processing is developing towards the high end. Along with the large-scale development of coal tar processing units, breakthroughs have been made in coal tar hydrogenation technology. At present, the first high-temperature coal tar hydrogenation unit with an annual output of 100,000 tons has successfully produced oil; a breakthrough has been made in the medium and low temperature coal tar hydrogenation technology, and a 500,000-ton medium-temperature coal tar processing project in Shaanxi has been completed; There are also new breakthroughs in the development of coke. The 4 sets of production units put into operation successively by Anshan Thermal Energy Research Institute and Baosteel Coal Chemical Industry indicate that my country has built the world's largest industrialized production unit of coal-measure needle coke, realizing the appreciation of the value of coal tar resources.
A new breakthrough has been made in the clean coking benzene processing technology. The rich resources of coking chemical products and the needs of my country's economic development provide development opportunities and broad markets for the recovery and deep processing of coking chemical products, and promote the development of coking benzene processing technology. Clean benzene processing technologies represented by benzene hydrogenation and benzene extraction have developed rapidly. Currently, there are more than 50 units in operation, with a total processing capacity of nearly 5 million tons. Crude benzene hydrogenation and other clean benzene refining technologies have laid a good foundation for replacing the seriously polluting sulfuric acid process, which not only greatly improves the production environment, saves energy, but also improves the quality and market competitiveness of coking benzene products.
The third is to develop a circular economy and make new progress in energy conservation and emission reduction.
In 2011, the level of efficient utilization of coke oven gas was further improved; the production capacity of methanol from coke oven gas exceeded 9 million tons, and the maximum single unit capacity reached 300,000 tons per year. At the same time, progress has been made in the application of coal gas methanation technology. It is expected that coke oven gas-to-natural gas projects in Qujing in Yunnan, Ordos in Inner Mongolia, Pingdingshan in Henan, and Tangshan in Hebei will be put into operation this year.
In addition, the number of CDQ units increased from 21 in 2005 to 119 at the end of 2011. If it is estimated that 40 kg of standard coal can be recovered per ton of coke, it can recover heat energy equivalent to 5.2 million tons of standard coal and reduce carbon dioxide emissions by 19 million. Ton. Coupled with the recovery and utilization of waste heat and waste energy in the coking production process, CDQ technology has played an important role in optimizing the industrial structure, energy saving and emission reduction, clean production, environmental protection, turning losses and increasing profits, and improving economic benefits for my country's coking industry.
Fourth, the combination and reorganization of enterprises has expanded the space for industrial development.
In recent years, a number of coking enterprises have merged, reorganized and strategically cooperated, and continuously strengthened the construction of the coal-coke-steel-chemical industrial chain, which has promoted the joint reorganization and industrial structure optimization of coking enterprises. By the end of 2011, the coke output of Anben Group has exceeded 10 million tons. Baosteel Coking, Pingmei Wuhan Iron and Steel Co., Ltd., and Shougang Coking Group have become super-large coking groups, speeding up the self-sufficiency of coke for iron and steel production and the construction of large-scale coking parks. At the same time, some independent commercial coke production enterprises have developed into large-scale coking enterprise groups with an annual output of more than 5 million tons, and have built high-level coal coke chemical recycling economy parks, which have enhanced the market competitiveness of enterprises.

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