China Drying News In 2012, the development of China's coal chemical industry continued to take a big leap forward. For example, Datang International's first phase of the first phase of coal-based natural gas production reached 1.3 billion cubic meters a year, and Shenhua Ning Coal mainly used 4 million tons of domestic independent technologies. The indirect coal liquefaction project started construction, and several coal-to-olefin projects were put into operation. At the end of the year, based on the newly accumulated one-year development experience, the development of modern coal chemical industry has become a hot topic. Experts from the industry such as Academician Chen Junwu from Sinopec Luoyang Engineering Company believe that in order to become a modern country with a strong coal chemical industry, China must adhere to the development path of large-scale projects, high-end products, and the optimization of energy efficiency. Chen Junwu said that China has become the world's largest coal chemical industry country, and coal chemical technology has also reached the world's leading level. The enthusiasm of local governments for the development of coal chemical industry is high and there are many varieties. However, some local coal chemical projects still have the phenomenon of small-scale and redundant construction of low-end products. Coal chemical projects have large investment, long construction period, and high production cost of unit products. Therefore, we must firmly adhere to the principle of large-scale coal chemical projects. This is a necessary condition for coal chemical projects to reduce costs and increase efficiency and enhance economic efficiency. In view of the fact that current coal-to-oil companies are usually satisfied with the direct sales of traditional gasoline and diesel products, Chen Junwu pointed out that the replacement of crude oil for production of gasoline and diesel is the original intention of China's development of modern coal chemical industry, but now the industry should This understanding has made a breakthrough. Coal-to-oil companies should develop to higher-end products, such as aviation kerosene and high-end lubricants, to increase the added value of the coal chemical industry chain. Coal-to-oil companies can also strengthen collaboration with downstream companies and even refineries to produce high-end products, and they can also give full play to the value of modern coal chemical industry. He Yongde, Honorary Chairman of the Shaanxi Provincial Chemical Society stated that the development of China's modern coal chemical industry should be expanded downstream. If coal is used to make olefins, it should increase the development of aromatics, such as xylene and p-xylene, to achieve olefins. The coupling and cogeneration of aromatics and aromatics will greatly increase the value of the modern coal chemical industry chain. At the same time, it is also indispensable to increase the development of supporting equipment, materials, and automation systems. Wei Fei, a modern coal chemical technology expert and professor of Tsinghua University, also believes that the development prospect of modern coal chemical industry lies in the high-end product development. Fine chemical products such as diolefins, aromatics, and oxygen-containing compounds and high-end synthetic materials should become modern coal chemical industry. Direction of development. Wei Fei told reporters that during the “12th Five-Year Plan†period, China’s coal-to-xylene production is expected to be industrialized, and that it will take longer. High-end products such as aniline and acrylonitrile may become products of modern coal chemical industry. Truly out of the road to a coal chemical industry. Zhang Xiangping, general manager of Shaanxi United Energy Chemical Technology Co., Ltd. introduced that the national policy actively encourages the use of technological innovations to couple, integrate, and co-produce a variety of clean fuels, chemical raw materials, and heat, electricity, and other Products, to achieve comprehensive utilization of coal, improve coal conversion efficiency. The coal chemical industry must vigorously eliminate the traditional backward production capacity, and modern coal chemical industry should develop towards large-scale, intensified, and base-based industries. Including more than one million tons of coal-based methanol, more than 3 million tons of coal-based oil, and more than 600,000 tons of coal-to-olefins. Zhang Xiangping further pointed out that trying to improve the energy efficiency of coal resources is an inevitable way for the development of modern coal chemical industry. On the one hand, we must actively develop low-rank coal clean and efficient use of technology. China's lignite, long-flame coal, non-stick coal, weakly viscous coal and other low-alcohol coal reserves account for more than 50% of the total coal reserves. It is a pity that this part of coal is burned directly as fuel, which means that it burns 10% of the oil. . The low metamorphic coal with an oil content of 6% or more can be passed through intermediate-low temperature retorting to produce primary products such as tar, semi-coke, and coal gas, and further processed and converted. The hydrogen in coal gas can be used to hydrogenate coal tar to produce fuel oil, and the remaining gas can be used to generate electricity. Syngas and semi-coke are used as raw materials for chemical gasification or boiler fuels to achieve coal-based multi-generation cogeneration, which can also achieve the purpose of energy conservation and emission reduction. The total thermal efficiency can exceed 80%. On the other hand, it is necessary to break the traditional independent development ideas of electricity, oil refining, and chemical production, and the realization of the cogeneration of kerosene, thermal power, and electricity is an important development direction for improving coal energy efficiency. The composition of coal is very complex, and it is difficult to obtain the best results from the use of a single product. If coal production and coal chemical, coal-to-liquid, thermoelectric, etc., are integrated upstream and downstream, multi-generation, comprehensive energy efficiency will be greatly improved, and resources will be fully utilized. . Different coal types in different regions can have different polygeneration models for optimal combination. At present, coal low-temperature pyrolysis polygeneration in Yulin, Shaanxi is one of the better models. It is understood that Shaanxi Coal Chemical Industry Group Co., Ltd. has started the construction of a large-scale high-efficiency coal conversion and polygeneration project demonstration project, the comprehensive energy efficiency can reach 74.8%, much higher than other coal-based energy products, while also minimizing the Consumption of precious water resources in northern Shaanxi.
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