%0 Conference Paper
%A Masiran, N.
%A Vo, D.-V.N.
%A Salam, M.A.
%A Abdullah, B.
%D 2016
%F scholars:7429
%I Elsevier Ltd
%K Alumina; Catalysts; Chemical reactors; Coke; Dehydration; Ethanol; Ethylene; Nickel; Process engineering, Bimetallic catalysts; CaO-Ni/Al2O3; Coke formation; Ethanol dehydration; Ethylene production, Catalyst supports
%P 1289-1294
%R 10.1016/j.proeng.2016.06.529
%T Improvement on Coke Formation of CaO-Ni/Al2O3 Catalysts in Ethylene Production via Dehydration of Ethanol
%U https://khub.utp.edu.my/scholars/7429/
%V 148
%X Carbon deposition during ethanol dehydration remains an issue that needs a conceivable solution as ethylene is coke-precursor for acidic-type catalysts. This research is focused on bimetallic CaO-Ni/Al2O3 catalyst to increase the resistance of coke formation on catalyst which mainly due to decomposition of carbon. Using wet impregnation procedure, various metal loadings of CaO and Ni (2-10wt) were introduced onto γ-alumina support. The prepared catalysts then were subjected to in-situ activation in a fixed-bed reactor using H2/N2 gas mixture before underwent the ethanol dehydration process in the same reactor. Catalysts were characterized using TEM, FTIR and FESEM. While CHNS Elemental Analyzer was used to observe coke formation before and after reaction. Based on the results obtained, the catalyst composition 6wtCaO-10wtNi/Al2O3 shows the best conversion of ethylene (87.89) at 450oC of reaction temperature. It also suppressed the carbon formation only 13.28 carbon content after the reaction. © 2016 The Authors.
%Z cited By 12; Conference of 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:131138