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CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study

Kah, Weng Siew and Hua, Chyn Lee and Khan, Maksudur R. and Jolius, Gimbun and Cheng, C. K. (2015) CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study. Journal of Energy Chemistry, 24 (3). pp. 366-373. ISSN 2095-4956

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Abstract

This paper reports on the longevity of glycerol-dry (CO2) reforming over the lanthanum (La) promoted Ni/Al2O3 catalysts. The XRD results showed that the Ni particle was well-dispersed in the presence of La promoter. In addition, via the NH3-TPD analysis, it was found that the La promoter has reduced the acidity of Ni catalyst which may have explained the mitigation of carbon laydown. It was determined that the 3.0 wt% La-promoted Ni/Al2O3 catalyst possessed the largest BET specific surface area of 97 m2·g−1. Consequently, it yielded the best catalytic longevity performance with conversion attained more than 90%, even after 72 h of reaction duration. Significantly, it can be confirmed that the presence of CO2 during the glycerol dry reforming was essential in reducing carbon deposition, most likely via gasification pathway. This has ensured a stability of catalytic activity for a long reaction period (72 h).

Item Type: Article
Uncontrolled Keywords: CO2 reforming; glycerol; lanthanum; longevity; syngas
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 02 Jul 2015 04:42
Last Modified: 11 Jan 2018 02:50
URI: http://umpir.ump.edu.my/id/eprint/9265
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