Citation: XIAO He, GAO Jun-hua, HU Jin-xian, ZHANG Bin, LIU Ping, ZHANG Kan. Synthesis of durene from methanol over alkali and acid modified HZSM-5[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(1): 102-109. shu

Synthesis of durene from methanol over alkali and acid modified HZSM-5

XIAO He ^1,2 ,
GAO Jun-hua ¹ ,
HU Jin-xian ^1,, ,
ZHANG Bin ¹ ,
LIU Ping ¹ ,
ZHANG Kan ¹

1.
1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;

Corresponding author: HU Jin-xian,
Received Date: 17 July 2012
Available Online: 21 September 2012

Alkali and acid modified HZSM-5 molecular sieves were prepared through treating with different alkali solutions together with nitric acid of different concentrations; four catalysts, i.e. H(0.2)-Na-ZSM-5, H(0.5)-Na-ZSM-5, H(0.2)-K-ZSM-5 and H(0.5)-K-ZSM-5 were obtained. These catalysts were characterized by means of XRD, NH₃-TPD, ICP, FT-IR and Py-IR; their performance in the synthesis of durene from methanol was investigated in a fixed-bed down-flow reactor. The results showed that the highest selectivity to durene for methanol aromatization is achieved over the H(0.2)-K-ZSM-5 catalyst, which should be ascribed to its large pore size and abundant weak B acid sites arising from the alkali and acid modification.
- HZSM-5,
- methanol,
- durene,
- alkaline treatment,
- acid treatment
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