What is the new understanding of RH load molecular sieve catalytic ethylene hydrogenation?

The molecular sieve is widely applied to a substrate of the metal catalyst, but the silicone phosphate (SAPO) is relatively small compared to the attractiveness of the researcher, California University Davis Bruce C. Gates, Molecular Sieve International Company James T. Hughes and other reports A SAPO-37-type molecular sieve substrate is used to load atomic fraction RH metals, and the metal load SAPO-37 molecular sieve is reacted by two RH-O bonds in RH (η2-C2H4) 2 (aceTylaceTonate). The process is characterized by infrared spectroscopy and X-ray fine absorption spectrum, and compared with the case where the load is loaded on Hy, and the structure of the display metal is the same. The results of the catalytic reaction test show that the starting process of the two catalysts in the hydrogenation reaction of ethylene is similar, but Hy molecules are sieved in ethylene, and SAPO molecules sieve ethylene preferentially hydrogenated. And the stability test results show that the SAPO base catalyst is more stable in the catalytic reaction of the flow reactor.