XU Xiaoying1, HU Wenxia1,2, HAN Zhihua1, ZHANG Yulong1*
(1 National Institute of Clean-and-Low Carbon Energy, Coal Chemical Technology Center, Beijing 102211, China;2 Beijing Institute of Technology, School of Aerospace Engineering, Beijing 100081, China)
Abstract:
Catalyst materials are widely used in industry and nearly 90% of the chemical products were produced via catalysis. Among heterogeneous catalysis, catalysts must have strong mechanical strength in order to stand for the dynamic changes of mechanical stress that might occur during reactions. Thus, to optimize the forming technology and processing parameters, the ways to characterize mechanical strength of each particle are very important for large-scale catalyst preparation. Herein, this paper clarified the type of catalysts, the way for powder forming, characterization methods for the formed catalyst and the methods to detect the strength and defects of formed catalysts. Meanwhile, it also demonstrated a novel defect detection tool (MicroCT) with recorded pictures.
KeyWords:
catalyst; catalyst forming; mechanical property; strength testing; MicroCT
