As the investment boom in the coal chemical industry has started in China, where coal is rich and oil is low, the market has demonstrated strong demand for various coal chemical technologies and equipment. Chen Shihai, deputy inspector of the Industrial Development Department of the National Development and Reform Commission, pointed out in an interview with reporters that from 2006 to 2020, China's investment in coal chemical industry will exceed trillions of yuan, of which 50% will be invested in equipment and 10% will be invested in technical software. on. In other words, the future investment in coal chemical industry will mainly focus on new technologies and new equipment.
According to a survey conducted recently by the Industrial Development Department of the National Development and Reform Commission on the coal chemical industry, at present, the total investment in China's coal chemical construction projects has reached more than 80 billion yuan, and these projects under construction will add 8.5 million tons of methanol capacity and 900,000 tons of dimethyl ether. , 1 million tons of olefins and 1.24 million tons of coal oil. In addition, among the projects that have been filed in various places, methanol production capacity is 34 million tons, olefins are 3 million tons, and coal oil is 3 million tons.
At the seminar, many experts believed that the coal chemical industry has the characteristics of technology-intensive and capital-intensive. It is impossible to solve the problem of technical equipment for the development of China's coal chemical industry. The first is that the financial resources of the enterprise are not allowed, and the second is that China’s coal chemical industry Eat "coarse grains" - using low-quality coal and high-sulfur coal as raw materials, which requires that technological development should take me as the mainstay and independent innovation.
Looking at various coal chemical industry nowadays, including various coal-based chemicals, coal-based liquid fuels, coal polygeneration systems, hydrogen production, integrated gasification combined cycle power generation (IGCC), etc., it is not difficult to see the coal chemical technology Equipment has the characteristics of large investment and technical difficulty.
The so-called large investment is due to the high temperature and high pressure conditions required in the production process of coal chemical industry, and the large and over-heavy equipment and the high cost of production. A set of imported equipment is frequently used for hundreds of millions and one billion yuan. In addition, China's development of coal chemical technology equipment also has a problem of adapting to coal raw materials: that is, China has more “three high†coals, ie, high sulfur content, high ash content, and high ash melting point. In recent years, the sulfur content of the deep coal in the main coal mine in China is gradually increasing. Generally, the sulfur content reaches more than 2%, and the high-sulfur coal reserves account for about 40% of the total reserves. In order to reduce the emission of sulfur dioxide gas, these coals are currently prohibited from being mined and prohibited from being used for boiler fuel. In addition, Chinese coal has a high ash content, with an average fly ash content of 25%. The average ash content of commercial coal even reaches 28%; the ash melting point of Chinese coal is also high, and coal reserves with high ash melting temperatures exceeding 1400°C account for 50% of total reserves.
As China's "three-high" coal resources are numerous, some of the major coal mines in the east have become a burden for coal companies. The forthcoming coal chemical industry policy requires that China's coal chemical industry must base itself on "three-high" coal as raw material, which is also in line with Coal chemical industry must have a large number of cheap, stable, long-lasting coal resources requirements.
Coal chemical technology in foreign countries does not have the problem of "three highs" coals. After introducing it into China, it often encounters various problems. Therefore, it is not easy to find the perfect coal chemical technology and equipment suitable for all kinds of coal resources in China. This problem will not be recognized unless it is immersed in people who do not come out of coal chemical engineering.
It is understood that according to the development level of domestic coal chemical technology, the Chinese government will focus on supporting the independent development and promotion of coal chemical technology in the following areas:
——In the field of coal coking, we will focus on the promotion of dry coke quenching technology, gas desulphurization technology, comprehensive gas utilization technology, coking wastewater treatment and other clean production technologies, coal tar comprehensive utilization and deep processing technologies, and new coking technology research and development.
——In the field of coal gasification, the focus will be on the popularization of coal-water slurry gasification technology, pressure gasification technology of crushed coal, atmospheric pressure ash fusion fluidized bed gasification technology, Ender pulverized coal gasification technology, and the study of dry pulverized coal gasification , Pressurized ash fusion fluidized bed gasification technology, pressured coal slag gasification technology and gas purification technology, the construction of second-generation gas domestic gasifier such as pressurized pulverized coal gasification.
——In the field of coal liquefaction, accelerate the development of coal direct liquefaction and indirect liquefaction technologies, and continuously improve the direct liquefaction oil production technology of Shenhua Group, the indirect liquefaction and oil production technologies of the Shanxi Coal Chemical Institute of the Chinese Academy of Sciences and the Yankuang Group to build a million-tonnage The coal liquefaction demonstration project.
——In the field of coal chemical synthesis, improve synthetic ammonia, methanol, two-step dimethyl ether synthesis technology, push forward further dimethyl ether synthesis technology, research and development of methanol to olefin industrialization technology, build million ton-tons of coal to methanol, two steps Domestic dimethyl ether and methanol to olefins industrialization base.
——In the field of chemical equipment, China will vigorously promote the localization of coal chemical equipment, focusing on the development of key coal gasifiers, large-size air compressors, large-scale synthesis reactors, and other key equipment with a daily coal output of 2,000 tons or more to form large-scale ammonia and methanol. The domestically produced complete sets of equipment manufacturing system for dimethyl ether, olefins, and coal-to-oil are used to ensure the sustainable development of the coal chemical industry.
Ventilation Hose
Ventilation Hose,Breather Hose,Tube Breather Hose,Crankcase Breather Hose
Wenzhou Hengyi Auto Parts Co.,Ltd , https://www.autoparts-hy.com