professor fei weiyang graduated from the dept. of engineering chemistry, tsinghua university in 1963. he was promoted as a full professor in tsinghua university in 1988 and elected as a member of chinese academy of science (cas) in 2003. his main research areas are separation science and technology, especially solvent extraction. based on systematic studies of transport phenomena, modeling and scale-up of separation equipments, he concentrated himself on bridging the gap between fundamental research and industrial application and gained several theoretical and practical achievements. he probed mathematic models of complex separation processes and their intensification approaches, resulting in innovation of several high efficiency packing and devices for solvent extraction and absorption. his creative research works solved many engineering problems and produced significant economic and social benefits. as a results, he awarded 2 national and 15 provincial or ministerial awards of science and technical progresses and 8 patents. he published more than 200 papers. he is very active on the study of process intensification, greenhouse gas co2 capture and technical foundation of circular economy recent years. he participated in collaborative research at the schools of chem. eng., university of bradford, uk during sept. 1981 to sept. 1983. he participated in collaborative research for 3 months at the university of melbourne, australia in 1993 and at the university of kaiserslautern, germany in 1997. he is the vice director of chinese ecological economics society, the fellow of the chemical industry & engineering society of china (ciesc), the fellow of royal society of chemistry uk, the editor-in–chief of chinese journal of chemical engineering (cjche), associate editor-in–chief of chemical engineering journal (china) and frontiers of chemical science and engineering.