China has become the world's largest coal gasifier market
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At present, China's rising coal-oil, methanol, synthetic ammonia, coal-to-olefin and other coal chemical industries require a large number of large coal gasification furnaces. In addition, China also has about 20% of the country's total coal reserves of high-sulfur coal. Ni Weidou said that these coals must be led by gasification technology for efficient and clean use. If coal-based Fischer-Tropsch synthesis ethanol fuels are used instead of 50 million tons of gasoline and diesel equivalent before 2020, it will require 220-360 million tons of coal; if one-third of coal is coal gasification, combined cycle steam power generation The power generation is about 250 million kilowatts. Calculated with an efficiency of 42%, it needs 600 million tons of coal, which totals about 900 million tons. It is predicted that if a large-scale gasifier with a capacity of 2,000 tons/day is used to treat 600,000 tons of coal per furnace per year, a total of 1500 large-scale gasifiers will be required by 2020 before, adding “two to one In general, the total demand for large gasifiers amounts to 2,250 units. Ni Weidou emphasized that the scale of this demand is staggering, but it is indeed necessary for future development. Otherwise, China's energy, resources, and environment will not be able to achieve sustainable development.
It should be said that coal gasification technology will have a broad market prospect in China. However, due to the inability to master the core technology, the design and manufacture of advanced coal gasifiers in the country is still a short board, and long-term relies entirely on imports. This has paid a heavy price. The cost of coal gasification technology and equipment imported from China is very expensive. According to incomplete statistics, only one license fee for the implementation of coal gasification technology patents has been introduced. China has already spent more than 200 million yuan, not counting hundreds of millions of dollars of proprietary equipment for processing and manufacturing. Expenditures for technical services and other expenses. According to experts, in recent years, some companies in China have introduced a large blindness to the introduction of pulverized coal gasification technology to the waste pan process. In fact, this technology has many drawbacks. For example, gasifiers and waste heat boilers are too complex and difficult to process. Large, all major equipment depends on imports. However, foreign companies have bundled the waste pan process coal gasification technology with the technology and sold them. Based on 13 sets of equipment currently introduced in China, the cost of bundling the imported waste pan process technology is at least 1.3 billion yuan. Experts believe that in fact this pulverized coal gasification technology in the waste pan process can be completely replaced by other process technologies, which can save a lot of unnecessary introduction costs.
Recently, a large-scale multi-nozzle opposed coal-water slurry gasifier with proprietary intellectual property rights developed by Shandong Yankuang Group Co., Ltd. and East China University of Science and Technology has undergone two years of development on Yantai Guotai Chemical Co., Ltd. demonstration plant. Cycle operation, technology has been fully mature, more than 10 companies have begun to use. According to Professor Yu Zunhong, an East China University of Science and Technology professor who is the leader in technology research and development, the patent fee for multi-jet coal-water slurry gasifier technology is only 1/3 of that for foreign technology, and the degree of localization is more than 90%, and it can be processed and manufactured entirely in China. . The maturity and continuous improvement of this autonomous technology has forced foreign related technologies to drastically reduce patent licensing fees.
Faced with the huge market in China, many coal gasification technologies of foreign companies have begun a new round of competition in China. Some experts pointed out that in the face of a coal gasifier market with such a huge demand, it is necessary for China to formulate a clear strategic plan for the development of coal gasifiers, encourage and support enterprises to use domestic technologies with independent intellectual property rights, and establish loans, funds, and bank loans. Discounts on interest discounts, tax reductions, and other policies provide preferential conditions for the promotion of coal gasification technologies with independent intellectual property rights. On the one hand, they can accelerate the large-scale application of domestic coal gasification technologies, reduce the huge introduction costs, and also accelerate China's The development of chemical equipment manufacturing industry will enhance the level of processing and manufacturing in the machinery industry.
It is understood that coal gasification technology is a key technology, basic technology and common technology for the development of coal-based chemicals, coal-based liquid fuels, advanced IGCC power generation, polygeneration systems, hydrogen production, fuel cells and other process industries. Coal gasification technology includes preparation of coal technology, gasification furnace technology, gasification process technology in three parts, the core is the gasifier.