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AssigneesChina Petroleum & Chemical Corporation, Sinopec Beijing Research Institute of Chemical Industry
InventorsGuobin WEI, Hui PENG, Kai TIE, Liyan ZHANG, Wei MU, Chenxi YANG, Shuisheng YI, Hongliang LU
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A supported palladium catalyst, and preparation and use thereof are provided. The catalyst contains a support, and palladium and a modified component supported on the support. The support is selected from refractory metal oxides, silicon oxide, activated carbon, or combinations thereof, and the modified component is selected from Bi, Sb, Pb, Sn, Zn, W, Mn, Si, Re, Group VIII elements other than palladium, alkali metal elements, alkaline earth metal elements, Group IIIA elements, Group IB elements, rare earth elements, halogen elements, or combinations thereof. According to an analysis on in-situ infrared spectroscopy of pyrrole adsorption carried out at 40° C., the catalyst exhibits absorption peak(s) in the range of 3251-3410 cm−1. The supported palladium catalyst features an overall weakly acidic surface environment with specific weakly basic sites.
A supported palladium catalyst, comprising a support, and palladium and a modifying component supported on the support, wherein the support is selected from refractory metal oxides, silicon oxide, activated carbon, or combinations thereof, and the modifying component is selected from Bi, Sb, Pb, Sn, Zn, W, Mn, Si, Re, Group VIII elements other than palladium, alkali metal elements, alkaline earth metal elements, Group IIIA elements, Group IB elements, rare earth elements, halogen elements, or combinations thereof, wherein according to an analysis on in-situ infrared spectroscopy of pyrrole adsorption carried out at 40° C., the catalyst exhibits absorption peak(s) in the range of 3251-3410 cm−1, preferably in the range of 3350-3400 cm−1.
Dependencies are inferred from the claim text.