Scholarly record
BIOETHANOL TRANSFORMATION INTO FUEL RANGE HYDROCARBONS OVER METHAL MODIFIED H-ZSM-5 ZEOLITE
Abstract
Global trend to renewable and green energy application instead of fossil fuel results in grows of bioethanol production and its application in transport and industry. Typically, bioethanol can be used as motor fuel purely and in blends with hydrocarbons, however bioethanol fuel containing less energy compared to traditional gasoline. A possible solution to this disadvantage can be catalytic transformation of bioethanol into hydrocarbons. Bioethanol can be transformed into hydrocarbons over different zeolites including H-ZSM-5, and intense work was provided by scientific community to improve process efficiency. However, there are some drawbacks that can be improved to make this technology more attractive for industrial application. The research is devoted to study of Cu, Zn and Cu/Zn modified H-ZSM-5 in ethanol to hydrocarbon transformation process to increase formation rate of saturated hydrocarbons and to improve H-ZSM-5 deactivation process, due to formation of carbon deposits over catalyst surface. Monometallic samples containing 0.12 wt. % of Cu and 0.34 wt. % of Zn and bimetallic sample containing 0.11 wt. % of Cu and 0.32 wt. % of Zn were synthesized by wet impregnation methods using Cu and Zn acetates. The catalyst sample were tested in ethanol to hydrocarbon transformation process at 350?C and 0.3 kg(Et)/(kg(Cat)?h) weight hourly space velocity (WHSV). Considerable change in hydrocarbons formation rates and catalysts stability was found.
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