Qingjie Guo Full Professor and DirectorState Key Laboratory of Coal High-Efficiency Utilization and Green Chemical Engineering, Ningxia UniversityProfessor Guo, full professor, is a director of State key laboratory of coal high-efficiency utilization and green chemical engineering, Ningxia University. He received the engineering bachelor degree (1989) for Chemical Engineering in East University of Science and Technology. In 1999, he was awarded Ph. D. in Chemical Engineering from Chinese Academy of Sciences. From 1999 to 2001, he spent two years in Department of Thermal Engineering, Tsinghua University as a postdoctral fellow. In July, 2001, he was granted a research fellowship from Alexander von Humboldt Foundation, Germany, who worked in Technical University of Hamburg with Professor Werther Joachim. At present, his interest focus on fluidization engineering, chemical looping combustion and gasification, and biomass energy. Up to now, he has published 260 papers in international and Chinese journals. Meanwhile, he has over 65 Chinese patents and a US patent. He served as a editorial member of Chinese J. Chem. Engineering, Carbon Resource Conversion, Int. Review Chem. Review, Chinese powder technology, etc.