Abstract
Various CuO/HZSM-5 catalysts were studied in a fixed bed reactor for the conversion of methanol to gasoline range hydrocarbons at 673 K and at one atmospheric pressure. The catalysts were prepared by wet impregnation technique. Copper oxide loading over HZSM-5 (Si/Al=45) catalyst was studied in the range of 0 to 9 wt%. XRD, BET surface area, metal oxide content, scanning electron microscopy (SEM) and thermogravimetric (TGA) techniques were used to characterize the catalysts. Higher yield of gasoline range hydrocarbons (C5-C12) was obtained with increased weight % of CuO over HZSM. Effect of run time on the hydrocarbon yields and methanol conversion was also investigated. The activity of the catalyst decreased progressively with time on-stream. Hydrocarbon products’ yield also decreased with the increase in wt% of CuO. Relatively lower coke deposition over HZSM-5 catalysts was observed compared to CuO impregnated HZSM-5 catalyst.
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Abbreviations
- FA0 :
-
molar flowrate of methanol [g mol/hr]
- W:
-
weight of catalyst [gm]
- T:
-
temperature [K]
- id:
-
internal diameter [mm]
- HZ (9):
-
9 wt% CuO/HZSM-5
- HZ (7):
-
7 wt% CuO/HZSM-5
- HZ (5):
-
5 wt% CuO/HZSM-5
- HZ (3):
-
3 % CuO/HZSM-5
- HZ (0):
-
HZSM-5
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Zaidi, H.A., Pant, K.K. Transformation of methanol to gasoline range hydrocarbons using HZSM-5 catalysts impregnated with copper oxide. Korean J. Chem. Eng. 22, 353–357 (2005). https://doi.org/10.1007/BF02719410
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DOI: https://doi.org/10.1007/BF02719410