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T. D. Kusworo
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Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Materials Science & Nanotechnology

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AUTOTHERMAL REFORMING OF OF METHANE TO HYDROGEN PRODUCTION OVER Ni/Al2O3, Co/Al2O3 AND NiO-Co/MgO T. D. Kusworo; A. R. Songip; N. A. S. Amir
Reaktor Volume 08 No.2 Desember 2004
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4799.483 KB) | DOI: 10.14710/reaktor.8.2.63-68

Abstract

Autotherman reforming of methane to hydrogen gas was examined over Co/Al2O3, Ni/Al2O3 and NiO CoO/MgO catalyst. Among the catalyst examined NiO-CoO/MgO catalysts with 24 % metal loading exhibits not only the highest catalyst and selectivity but also remarkable stability. In addition the catalysts ware characterized by nitrogen adsorption (NA) , TPR, and XRD. The catalyst charecteristics is strongly influenced by interaction between support and metal exist. The excellent performance of NiO-CO/MgO resulted from the formation of an ideal solution between NiO, CoO and MgO Keywords : Autothermal reforming of methane, hydrogen production
Fabrication and characterization of polyimide/ polyethersulfone-fumed silica mixed matrix membrane for gas separation A. F. Ismail; T. D. Kusworo
Reaktor Volume 11, Nomor 1, Juni 2007
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5912.568 KB) | DOI: 10.14710/reaktor.11.1.30-37

Abstract

This study is performed primarily to investigate the feasibility of fumed silica as inorganic material towards gas separation performance of mixed matrix membrane. In this study, polyimide/ polyethersulfone (PES)-fumed silica mixed matrix membrane were casted using dry/wet technique. The result from the FESEM, DSC and FTIR analysis confirmed that the structure and physical properties of membrane is influenced by inorganic filler. FESEM`s cross-section view indicated good compatibility  between polymer and fumed silica for all of range fumed silica used in this study. The gas separation performance of the mixed matrix membrane with fumed silica were relatively higher compared to that of the neat PI/PES membrane. PI/PES-fumed silica 5 wt% yielded significant selectivity enhancement of 7.21 and 40.47 for O2/N2, and CO2/CH4, respectively.Keywords:  gas separation membrane, mixed matrix membrane, silica
Co-Authors A. F. Ismail A. R. Songip N. A. S. Amir