Catalytic conversion of dimethyl ether to toluene over the molecular sieves modified with tungsten oxide
作者： Bo WANG , Hui WANG , Guang-bo LIU , Zhuo LI , Xue-min LI
DOI: 10.1016/S1872-5813(14)60041-4
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摘要: Abstract The catalytic performance of various zeolites modified with tungsten oxide in the conversion dimethyl ether (DME) to toluene presence oxygen was investigated a continuous flow fixed-bed reactor. results indicated that WO 3 /HZSM-5 as catalyst is highly selective DME toluene; under optimized conditions, i.e. atmospheric pressure, 290°C, and DME/O 2 mol ratio 2:1, 98.97%, selectivity 39.71% toluene. characterization about structure acidity illustrate porous ZSM-5 suitable for formation from DME. doping adjusts distribution surface acid sites then inhibits side-products oxygen, which able enhance
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