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Details for article 6 of 9 found articles
| Title: |
Highly Active W-H2SO4/HZSM-5 Catalyst for Direct Conversion of Methane into Aromatic |
| Author: |
Kusmiyati Nor Aishah Saidina Amin W.A. Siswanto |
| Appeared in: |
Bulletin of chemical reaction engineering & catalysis |
| Paging: | Volume 2 (2007) nr. 2-3 pages 32-36 |
| Year: |
2007 |
| Contents: |
Dehydroaromatization of methane (DHAM) under non oxidative condition was studied over tungstenloaded HZSM-5 catalysts to produce aromatic hydrocarbons. The catalysts were prepared by impregnationmethod using different conditions : in neutral and acidified solution. The activity of W/HZSM-5 prepared byneutral solution and W-H2SO4/HZSM-5 prepared in acidified condition were compared. The results showedthat the optimum activity of W-H2SO4/HZSM-5 catalyst exceeded that of W/HZSM-5 catalyst. The effect ofSi/Al ratio of W-H2SO4/HZSM-5 catalyst was also studied. The W-H2SO4/HZSM-5 catalyst with Si/Al ratio =30 was found to be the most promising for the DHAM reaction. The remarkable activity of the catalyst isattributed to the presence of dual effects: suitable content of octahedral polymeric and tetrahedral monomerictungstate species accompanied by proper amount and strength of acid sites in the catalyst |
| Publisher: |
Department of Chemical Engineering, Diponegoro University (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 6 of 9 found articles
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