Abstract:The development of new catalytic materials that could be applied in the industrial production of aromatics was reviewed in this paper, including composite molecular sieve, nano-sized zeolites with large channels, core-shell molecular sieve and ZSM-12, etc. BEA/MOR co-crystallized molecular sieve, mesoporous mordenite, nano-sized zeolite, and MFI/BEA or MOR/BEA core-shell molecular sieve had good performance for conversion of heavy aromatics. MFI/MFI core-shell zeolite, especially the SRZ-1 with b-oriented silicalite-1 shell, exhibited good shape-selective performance in the methylation of toluene with methanol. Based on nano-sized ZSM-5 with high ratio of Si to Al, MTX-1000 toluene methylation catalyst was successfully applied in the 200 000 tons per year MTX industrial demonstration unit at Yangzi petrochemical company and exhibited excellent catalytic performance.
Kong Dejing,Qi Xiaolan,Zheng Junlin et al. Novel Catalytic Materials towards Industrial Production of Aromatics[J]. Chemical Reaction Engineering and Technology, 2013, 29(5): 449-455.