Professor GUAN Qingqing(one of the team leaders): Doctoral Supervisor, Master’s Supervisor, Post-doctoral Cooperative Supervisor, Doctor of South China University of Technology, government-sponsored joint-training doctoral student of University of Michigan (2010-2011), Associate Professor in 2013, Doctoral Supervisor in 2014, Professor in 2015, Chief Professor of KUST Supercritical Multiphase Flow Innovation Team, one of the reserve talents of Yong and Middle-aged Academic and Technical Leaders in Yunnan Province.
Introduction to Supercritical Multiphase Flow Innovation Team (hereinafter referred to as the Team)：
It is demanded in China’s Strategic Action Plan for Energy Development (2014-2020) that clan and efficient utilization of coal and energy substitution should be promoted. Specifically, non-fossil energy should account for over 15%, natural gas over 10% and coal less than 62% in primary energy consumption. The technology of Supercritical Multiphase Flow has been adopted to develop clean and efficient lignite oil, lignite synthetic fuel gas (methane, hydrogen, etc.), biomass (algae, lignin, etc.), supercritical multiphase flow fuel gas, and to explore the efficient disposal of waste oil and the production technology of biodiesel from algae.
The Team aims to utilize supercritical multiphase fluids to realize environmental resources recycling and the synthesis of new materials. Specifically, lignite and industrious waste are synthesized into new materials, and efficient production of black phosphorous is conducted from red phosphorous. Black phosphorous, a natural semiconductor, is praised as “Fantasy Material” that can be parallel to grapheme for that the photo-detectors of it can be transferred to silicon photonic circuits. The Team values not only studies but also the application of technologies. Since its establishment, fields including scientific research, platform, function, and talents construction have been comprehensively developed, providing strong support for the ranking and development of Environmental Science and Engineering of KUST.
Projects:
High-level Talents Project in Yunnan Province: Study on Transcritical Co-gasfication Production of Fuel Gas from Liginte, Sludge and Bilmass
National Natural Science Foundation Project: Process, Kinetics and Mechanism of Supercritical Ethanol Recycling from Phenol and Wastewater Concentrate Thereof
Research Fields:
1. Lignite Liquefaction
Lignite has high liquefaction reactivity thus easy to be liquefied because there’s a relatively large quantity of carboxyl, oxygen bridges, carbonyl and methylene in its structure unit. Lignite Liquefaction, which includes direct and indirect forms, is a technology that converts solid coal into liquid products by chemical processing. Utilizing lignite to produce liquid gas is a major approach to utilize coal, increase the source of liquid fuel oil, develop coal chemical industry and control coal pollution efficiently and cleanly.
2. Study on Supercritical Water Gasification of Lignite
According to the forecast of British Petroleum, natural gas will become the world’s largest energy in 2040 and its important status will then be maintained for a long time. There are proven reserves of lignite in China of 128 billion tons. Lignite has the highest rate of moisture content among all kinds of coals, which increases its transportation cost and the heat consumption in the gasification process while the cost of drying is very high. Supercritical Water Gasification is a new technology of gasification proposed in the 20th Century. In supercritical water, organics and gas can be effectively mixed into homogeneity, and water serves as medium and reactant, facilitating the generation of energetic gas.
3. New Technologies Development for Liquefied Oil Up-gradation: Crude Oil Supercritical Ethanol Up-gradation Technology; Catalytic Self-supplying Hydrogen Crude Oil Up-gradation Technology
4. Synthesis of Supercritical Multiphase-flow New Material
Black phosphorus is praised as “Fantasy Material” for its excellent properties parallel to graphene, but graphene lacks energy gap and is incompatible with silicon while black phosphorus does not has this drawback. The compatibility with silicon is expected to promote the technology of silicon photonics and at that time chips will transmit digital signals by light rather than by electronics. Black phosphorous is a kind of high-performance materials of photoelectric detector, only a few layers of which can be enough to sense the light in waveguide. Black phosphorus can be synthesized by the catalytic crystallization of red phosphorus in supercritical fluid.
