**Visit of Professor Liang-Shih Fan to the Department of Chemical Engineering at Tsinghua University** On the afternoon of June 9, Professor Liang-Shih Fan, a distinguished academic from Ohio State University, visited the Department of Chemical Engineering at Tsinghua University in Beijing, China. Professor Fan, who is a member of the U.S. National Academy of Engineering and a foreign member of the Chinese Academy of Engineering, is renowned for his significant contributions to the fields of fluidization, multiphase flow, powder reaction engineering, and powder technology. His research has had a profound impact on various industrial sectors, particularly in energy, environment, chemistry, and petrochemicals. During his visit, Professor Fan delivered an engaging academic presentation titled "Chemical Looping Processes and Applications," which was chaired by Professor Guangsheng Luo, the head of the Department of Chemical Engineering at Tsinghua University. The lecture focused on the latest advancements in chemical looping processes from his research team, along with practical industrial applications of these theoretical findings. Chemical looping is a technology that involves the use of a metal oxide to transfer oxygen from one reaction to another, which is particularly useful in the production of hydrogen, carbon capture, and the reduction of emissions in industrial processes. Professor Fan engaged actively with the audience, which included faculty members, students from the Department of Chemical Engineering, and experts from other departments and external institutions. He responded to a series of questions with detailed and insightful answers, fostering a rich academic exchange. Following the presentation, Professor Fan toured the new building of the Department of Chemical Engineering, the Yingshi Building, accompanied by departmental leaders and faculty. This visit provided an opportunity for further discussions and reflections on the facilities and research environments at Tsinghua University. Professor Fan’s visit was not just a professional exchange but also a personal one, as he has a deep connection with Tsinghua University. He expressed his willingness to contribute to the development of the Department of Chemical Engineering and emphasized his desire to strengthen the collaboration between Ohio State University and Tsinghua University. This sentiment underscores the importance of international academic cooperation in advancing scientific knowledge and technological innovation. The visit by Professor Liang-Shih Fan was highly valued by the Tsinghua community, as it not only highlighted cutting-edge research in chemical looping processes but also strengthened the ties between two leading institutions in the field of chemical engineering.