CO2 reforming of glycerol over La-Ni/Al2O3 catalyst: A longevity evaluative study

Kah Weng Siew; Hua Chyn Lee; Maksudur R. Khan; Jolius Gimbun; Chin Kui Cheng

doi:10.1016/S2095-4956(15)60324-2

CO₂ reforming of glycerol over La-Ni/Al₂O₃ catalyst: A longevity evaluative study

Kah Weng Siew, Hua Chyn Lee, Maksudur R. Khan, Jolius Gimbun, Chin Kui Cheng

Chemical and Petroleum Engineering

Universiti Malaysia Pahang

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

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).

Original language	British English
Pages (from-to)	366-373
Number of pages	8
Journal	Journal of Energy Chemistry
Volume	24
Issue number	3
DOIs	https://doi.org/10.1016/S2095-4956(15)60324-2
State	Published - 1 May 2015

Keywords

CO reforming
glycerol
lanthanum
longevity
syngas

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title = "CO2 reforming of glycerol over La-Ni/Al2O3 catalyst: A longevity evaluative study",

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).",

keywords = "CO reforming, glycerol, lanthanum, longevity, syngas",

author = "Siew, {Kah Weng} and Lee, {Hua Chyn} and Khan, {Maksudur R.} and Jolius Gimbun and Cheng, {Chin Kui}",

note = "Funding Information: This work was supported by the Ministry of Education, Malaysia through MTUN-CoE Research Grant ( RDU121216 ) and FRGS Research Grant ( RDU140112 ). Publisher Copyright: {\textcopyright} 2015 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences. Published by Elsevier B.V.",

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doi = "10.1016/S2095-4956(15)60324-2",

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AU - Siew, Kah Weng

AU - Lee, Hua Chyn

AU - Khan, Maksudur R.

AU - Gimbun, Jolius

AU - Cheng, Chin Kui

N1 - Funding Information: This work was supported by the Ministry of Education, Malaysia through MTUN-CoE Research Grant ( RDU121216 ) and FRGS Research Grant ( RDU140112 ). Publisher Copyright: © 2015 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences. Published by Elsevier B.V.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - 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).

AB - 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).

KW - CO reforming

KW - glycerol

KW - lanthanum

KW - longevity

KW - syngas

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JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

IS - 3

ER -

CO₂ reforming of glycerol over La-Ni/Al₂O₃ catalyst: A longevity evaluative study

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