During the 10th Five-Year Plan period, China’s chemical industry continued to suffer from the red light of tight oil supply and high prices. For this reason, China began to replace ice with coal. Among them, the world's blank and cutting-edge projects in this area—coal direct liquefaction oil production, pulverized coal gasification, coal to olefins and other industrial projects have all started in China.
It is expected that during the “Eleventh Five-Year Plan” period, a number of large-scale and technologically advanced coal chemical projects will be successively built and put into production.
Coal-based oil steadily promoted Shenhua Group Co., Ltd.'s coal-based liquefaction and oil-making project, which is the world's first industrialization project and has been listed as a key project of China's 'Tenth Five-Year Plan'. In order to provide technical support and protection for the project, Shenhua Group has established a set of 6 tons of coal liquefaction plant with daily intellectual property rights in Shanghai. On December 16, 2004, the device was put into operation for the first time to open up the entire process. After optimization and reform, in October this year, the device was refueled and driven, and the device was continuously operated for 18 days. All the indicators met the design requirements and achieved long-term and stable operation. It directly verified the direct liquefaction and oil production of coal independently developed in China. The advanced and reliable technology. The success of this research signifies that Shenhua and even China have acquired an independent intellectual property with significant technological and economic benefits.
On August 25, 2004, the first domestic coal-to-liquid project was started in Wulanmulun Town, Ejin Holo Banner, Ordos City, Inner Mongolia. On March 30, 2005, Shenhua Coal Oil Factory was formally incorporated.
The total construction scale of the project is to produce 5 million tons of oil products per year, which will be constructed in two phases. The construction scale of the first phase of the project will be 3.2 million tons of oil products annually. It will consist of three main production lines, including coal liquefaction, coal hydrogen, and solvent addition. 14 sets of main production devices, such as hydrogen, hydrogenation, and catalyst preparation. The total investment of the first-phase project is 24.5 billion yuan. After completion and production, it can produce 3.2 million tons of various oil products, including 500,000 tons of gasoline, 2.15 million tons of diesel, 310,000 tons of liquefied gas, and 240,000 tons of benzene and mixed xylene. . In order to effectively avoid and reduce risks, the project adopts a step-by-step implementation plan. First, it builds a production line with an annual output of 1.08 million tons. After the equipment is running smoothly, it will build another production line. The first phase of the project will be completed in 2007 and the second line will be completed around 2010.
At present, the project is stepping up construction. By the end of 2005, 30% of the project volume has been completed, and an investment of about 2.7 billion yuan has been completed. This year, equipment installation will begin and commissioning will start next year.
Pulverized coal gasification technology has achieved breakthrough in coal gasification. Coal gasification has high conversion rate and wide adaptability of coal types. This technology is a key technology for the transformation of traditional coal-synthetic ammonia and methanol industries. It is also a development of coal-to-olefin, indirect coal liquefaction and coal gasification. The foundations of emerging industries such as steam combined cycle power generation, polygeneration systems, hydrogen production, and fuel cells are common technologies, leading technologies, and cutting-edge technologies in these industries.
Since the 1980s, China began to introduce foreign pulverized coal gasification technologies. Since most of these technologies were introduced for industrial production for the first time, China has, to some extent, become a testing ground for foreign gasification technologies. Many companies have introduced companies. The cost of experimentation and high costs have been paid for.
During the Ninth Five-Year Plan period, East China University of Science and Technology, Yannan Lunan Fertilizer Plant, and China Tianchen Chemical Engineering Co., Ltd. jointly undertook the national key scientific and technological research topic—“New coal-water slurry coal gasifier development” and carried out independent knowledge. Pilot Study of Pulverized Coal Gasification Technology with Property Rights .
During the tenth five-year plan period, the first large-scale nitrogenous fertilizer localization project of Shandong Hualu Hengsheng Chemical Co., Ltd., which was the first project to use pulverized coal gasification technology independently developed by China, was started. In early June 2005, the project was successful. The structure of the gasifier used in the project is multi-nozzle facing type, with coal water slurry feeding, operating pressure of 6.5 MPa, and a single furnace daily processing 750 tons of raw coal.
Another project using this technology was built at Shandong Yantai Guotai Chemical Co., Ltd. The total investment of the project is 2.7 billion yuan. The leader is 2 sets of multi-nozzle opposed coal-water slurry gasifiers that process 1,150 tons of coal per day. The coal gas-fired steam combined cycle power generation technology is used, and the annual production of 240,000 tons of methanol is matched. 71 .8MW power generation. On July 21, 2005, the gasifier was successfully fed once. On October 17, we opened up all production processes and produced methanol and electricity. At present, the plant has been operating for more than 700 hours, and its technical indicators have reached the international advanced level. Among them, the gasifier's effective gas CO+H2 is ≥82%, and the carbon conversion rate is ≥98%.
The successful construction of these projects indicates that China has completely independent intellectual property rights of pulverized coal gasification technology, and bid farewell to the era of relying entirely on imports and being controlled by people. It is expected that by the end of the “Eleventh Five-Year Plan” in China, the scale of pulverized coal gasification is approximately 100 million tons of raw coal per year. The success of these projects is of landmark significance for safeguarding China’s energy security and developing the coal chemical industry.
Coal-to-olefins have already started to be a coal-to-olefins project, and it is recognized as a pearl in the chemical industry. Perhaps it is thought to be unattainable. Until now, ten years after the successful development of its technology, no industrial device has been built in the world. However, in China, the coal-to-olefins (MTO) industrialization project jointly constructed by Shenhua Group, Kerry Chemicals Co., Ltd. and Shanghai Huayi (Group) Co., Ltd. started on October 28 this year in Baotou.
The project is located in the newly planned industrial base in Haringer Town, Jiuyuan District, Baotou City. The overall project includes 1.8 million tons/year coal-to-methanol plant, 600,000 tons/year methanol to ethylene, and propylene (MTO) process unit, 31 Million/year polypropylene plant, 300,000 tons/year polyethylene plant, 224,000 standard cubic meters (oxygen)/hour air separation unit. It is estimated that the total investment of the project will be 12.4 billion yuan
At the end of last year, the project passed the environmental assessment of the State Environmental Protection Administration. In May this year, it was approved by the National Development and Reform Commission before the final assessment. On May 19th, Shenhua Group and the design institute signed a project design contract. On October 28, the coal-to-olefins project was completed. The groundbreaking ceremony was held in Baotou City, Inner Mongolia. As the first coal-to-olefins project to be put into operation in the world, the project adopted the plan of “one overall planning, design, and step-by-step implementation” and started the coal-to-methanol section as a first-phase project. After the conditions are ripe, the second phase of the methanol-to-olefins section will be started in due course. At present, the 1.8 million tons/year coal-to-methanol project is under construction.
The key technology of this project will adopt the coal-to-olefins (MTO) technology of the U.S. Global Oil Company, and the technology import negotiations between Shenhua and U.S. Global Oil Products Company have come to an end. At present, Global Oil Products Company is in accordance with the requirements of relevant government departments in China, according to Shenhua's production site conditions, the final technology verification of the transferred technology.
In view of the limited nature of global oil resources, the coal chemical industry is called 'Tomorrow's Industry'. Due to the 'rich coal and less oil' national conditions, China has taken the lead in opening up a new road for the sustainable development of China's chemical industry, and also demonstrated the upcoming global large-scale oil substitution project. .