| 个人简介 | |
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 Prof. Hui Jin Xi'an Jiaotong University, China |
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| 标题： Resistance Analogy Analyze for Coal Gasification in Supercritical Water for Hydrogen Production | |
| 摘要： The traditional coal utilization way has a series of disadvantages such as high pollution, high emission and high energy consumption. Supercritical water gasification technology, based on the concept of ordered energy conversion, provides a clean, low-carbon and efficient way of coal utilization owing to the unique physical and chemical properties of supercritical water. For technical application, mild gasification temperature can effectively reduce investment and energy consumption, but it also causes lower reaction driving force. Therefore, the method of resistance analogy analyze was used in this paper to find reasonable regulation methods to achieve the optimal matching of heat transfer, mass transfer and chemical reaction, so as to realize comprehensive resistance reduction. The research was carried out from three aspects: the enhancement of main reaction, the inhibition of side reaction and the coordination of multiple reactions. Firstly, the rate-determining step of gasification process was found, and the method of liquid residual recycle was proposed to increase the free radical concentration at the reactor bottom to promote the gasification of polycyclic aromatic hydrocarbons. Then, based on the obtained drag, heat transfer and diffusion equations, the methods of controlling the nozzle heat flow boundary, adjusting the injection angle and designing the swirl distributor were proposed, which effectively restrain the side reaction in the nozzle and the reactor bottom. Finally, the heat match was conducted for the whole reactor based on the accurate kinetic model, which avoided overheating and reduced the heat transfer resistance. Based on the above optimization methods, a demonstration plant was constructed, where more than ten typical coals in China were completely gasified under mild temperature. Key words: Supercritical water gasification; Ordered energy conversion; Resistance analogy analyze; Hydrogen production | |
| 简介： Jin Hui received the bachelor degree and Ph.D degree in Power Engineering and Engineering Thermal Physics in Harbin Institute of Technology in 2005 and Xi’an Jiaotong University in 2011 respectively. In 2011, Lecturer, Dept. of Energy and Power Engineering, Xi'an Jiaotong University, China. In 2018, full professor of Xi'an Jiaotong University. Director of Multiphase Flow in New Energy Institute in Xi’an Jiaotong University, 2018 In 2011, awarded by the “Wu Chung-hua outstanding student award” issued by Chinese Society of Engineering Thermophysics. In 2014, awarded by first prize in Science and Technology of Shaanxi province (2014, ranking 3), Winner of the National Science Fund for Distinguished Young Scholars in National Natural Science Foundation of China. Serve as Council member of China Society of Electrical Engineering, Deputy leader of multiphase flow professional group in the Chinese Society of Theoretical and Applied Mechanics His research fields focus on a poly-generation technology based on coal gasification for hydrogen production, power generation and heat supply. He has published more than 160 paper with more than 3000 citations with an h-index 32. 7 papers have been selected into ESI top papers (1 hot paper). He also has public or authorized 15 patents, 12 invited talks. | |
