Citation: ZHU Hui, HUANG Hui-wen, ZHANG Shan-he, ZHANG Qiang, LI Chun-yi. Catalytic performance of La-modified HZSM-5 catalysts for methanol to gasoline reaction[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(5): 564-568. shu

Catalytic performance of La-modified HZSM-5 catalysts for methanol to gasoline reaction

State Key Laboratory of Heavy Oil Processing, China University of Petroleum(East China), Qingdao 266580, China

Corresponding author: LI Chun-yi, chyli@upc.edu.cn
Received Date: 29 November 2017
Revised Date: 28 February 2018

Fund Project: the National Natural Science Foundation of China 21406270The project was supported by the National Natural Science Foundation of China (21406270)

Figures(7)

La-modified HZSM-5 catalysts were prepared by impregnation method, and characterized by XRD, NH₃-TPD, Py-FTIR and N₂ adsorption/desorption techniques. Their catalytic performance in methanol to gasoline (MTG) reaction was evaluated in a fixed-bed tubular reactor at 350℃ and WHSV of 4.74 h^-1 under ambient pressure. The results show that the introduction of La decreased the amount of acid sites, specific surface area and pore volume of HZSM-5 catalyst. The catalyst with La loading of 4% exhibited the best catalytic performance in MTG reaction, over which the lifetime and gasoline yield increased from 12 h and 52.69% to 16 h and 59.28%, respectively. In addition, the selectivity to aromatics in gasoline decreased markedly by 18% with increasing La content.
- methanol to gasoline,
- HZSM-5 zeolite,
- La
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