Abstract: 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.

Abstract: Control device, method, machine-readable storage medium, and computer program product for a reactor are provided. The automatic control method for the reactor includes the steps of obtaining the multi-level relevant parameters of the reactor; controlling the values of the parameters of each level according to the transfer functions between the multi-level relevant parameters from level to level, so that the specified parameters are within the preset range. The automatic control method for the reactor can achieve the dynamic process adjustment and optimization of the multi-level variables of the reactor and, at the same time, maintain the stable operation of the reactor.