On January 29, Yankuang Luxi Power Generation Project 2 & times; 600,000 kW underground coal gasification power generation project officially started construction. This is the first large-scale underground coal gasification power generation project in Shandong Province, and it is also the renewal of green coal mining and utilization.
Yankuang Luxi Power Generation Project has a total investment of about 5.6 billion yuan, with a construction scale of 2-times; 600,000 kilowatt-class high-efficiency ultra-supercritical coal-fired condensation pumping generating units; at the same time, special railway lines for coal transportation, underground coal gasification power generation blending projects, simultaneous construction of desulfurization, denitrification facilities and related production, auxiliary production and ancillary projects. Unit 1 is scheduled to go into operation in February of 2021 and Unit 2 is scheduled to go into operation in May of 2021.
Industry experts said that the underground coal gasification technology has good economic and environmental benefits, realizing “ physical coal mining ” to “ chemical coal mining ” transformation will greatly improve the utilization rate and utilization level of coal resources, is an important research and development direction of clean coal technology in China.
It is understood that coal gasification is one of the important forms of coal conversion, which plays a connecting role in various production processes. Underground coal gasification technology is about to control the combustion and gasification of underground coal. Through the thermal and chemical action of coal, it can produce gas energy that can be used, remove useful components, and leave pollutants such as coal gangue and carbon dioxide in underground. It can not only reduce carbon emissions, prevent safety accidents, but also produce hydrogen, methane, methanol and other chemicals. Products. Coal underground gasification power generation is a new technology which integrates well construction, coal mining, gasification and power generation technology to develop clean energy and chemical raw materials. It has the advantages of good safety, less investment, high efficiency and less pollution. It is known as the second generation coal mining method.
Underground coal gasification technology can not only recover abandoned coal resources, but also be used to mine thin seams, deep seams, & ldquo, & rdquo, high pressure coal and high sulfur, high ash and high gas seams, which are difficult for miners to exploit or have poor economy and safety. It can multiply the amount of coal resources exploited. According to the gas composition and application conditions, underground gasification gas can be used for combined cycle power generation, extraction of pure hydrogen, as well as chemical raw gas, industrial fuel gas, urban civil gas and so on.
Especially after underground coal gasification, combustible hydrogen-rich gas can be produced. After various purification processes and separation on the ground, the gas can be divided into two parts: one is compressed hydrogen, the other is pure carbon dioxide. Hydrogen can be used to generate electricity from energy fuel cells, while carbon dioxide can be captured and stored underground. Earlier, Yanzhou Mining Group, Shandong Heavy Industry and National Hui Investment co-sponsored the establishment of Shandong Hydrogen Energy and Fuel Cell Industry Alliance, focusing on the hydrogen energy industry. This project has also become the best interpretation of Shandong's hydrogen energy development.
Li Xiyong, secretary and chairman of the Party Committee of Yanzhou Mining Group, said: & ldquo; Speeding up coal-electricity joint venture and coordinated development is an important measure to promote clean and efficient development of coal-electricity. & It is reported that Yanzhou Mining Group began to invest in the electric power industry in the 1980s, with a total installed capacity of 784,000 kilowatt-hours and an annual generating capacity of 4.5 billion kilowatt-hours. In the early stage, Yanzhou Mining Group and Shandong Prison Administration signed the Framework Agreement on Transfer of Power Generation Projects in Luxi Prison, gaining the controlling right of power generation projects in Luxi Prison.
It is understood that Luxi Power Generation Co., Ltd. 2 & times; 600,000 kW underground coal gasification power generation project is located in Zoucheng Taiping Town Industrial Park, approved and approved by Shandong Development and Reform Commission in 2016. After the project is completed and put into operation, it can generate 6 billion kilowatt-hours of electricity annually. The steam and heat load of the cogeneration industry is 100 tons/hour, and the heating area of the eastern urban area of Jining is 23 million square meters. It has become the heat source of central heating in the key cities of Jining. Yanzhou Mining Group said that it would strive to build Luxi Power Generation Project into a world-class, technologically advanced, environmentally friendly and efficient garden-style factory, and become a model project, demonstration project and high-quality project for the conversion of new and old kinetic energy in our province.
Underground coal gasification process