Cover Image

Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel

Untreated waste cooking oil (WCO) with significant levels of water and fatty acids (FFAs) was deoxygenated over Co3O4–La2O3/ACnano catalysts under an inert flow of N2 in a micro-batch closed system for the production of green diesel. The primary reaction mechanism was found to be the decarbonylation...

Full description

Saved in:
Bibliographic Details
Main Authors: Alsultan, Abdulkareem Ghassan, Mijan, Nurul Asikin, Alsultan, Mustafa G., Lee, Hwei Voon, Wilson, Karen, Yap, Taufiq Yun Hin
Format: Article
Language:English
Published: Royal Society of Chemistry 2020
Online Access:http://psasir.upm.edu.my/id/eprint/88754/1/DIESEL.pdf
http://psasir.upm.edu.my/id/eprint/88754/
https://pubs.rsc.org/en/content/articlelanding/2020/ra/c9ra09516k
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.upm.eprints.88754
record_format eprints
spelling my.upm.eprints.887542021-10-06T08:46:36Z http://psasir.upm.edu.my/id/eprint/88754/ Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel Alsultan, Abdulkareem Ghassan Mijan, Nurul Asikin Alsultan, Mustafa G. Lee, Hwei Voon Wilson, Karen Yap, Taufiq Yun Hin Untreated waste cooking oil (WCO) with significant levels of water and fatty acids (FFAs) was deoxygenated over Co3O4–La2O3/ACnano catalysts under an inert flow of N2 in a micro-batch closed system for the production of green diesel. The primary reaction mechanism was found to be the decarbonylation/decarboxylation (deCOx) pathway in the Co3O4–La2O3/ACnano-catalyzed reaction. The effect of cobalt doping, catalyst loading, different deoxygenation (DO) systems, temperature and time were investigated. The results indicated that among the various cobalt doping levels (between 5 and 25 wt%), the maximum catalytic activity was exhibited with the Co : La ratio of 20 : 20 wt/wt% DO under N2 flow, which yielded 58% hydrocarbons with majority diesel-range (n-(C15 + C17)) selectivity (∼63%), using 3 wt% catalyst loading at a temperature of 350 °C within 180 min. Interestingly, 1 wt% of catalyst in the micro-batch closed system yielded 96% hydrocarbons with 93% n-(C15 + C17) selectivity within 60 min at 330 °C, 38.4 wt% FFA and 5% water content. An examination of the WCO under a series of FFA (0–20%) and water contents (0.5–20 wt%) indicated an enhanced yield of green diesel, and increased involvement of the deCOx mechanism. A high water content was found to increase the decomposition of triglycerides into FFAs and promote the DO reaction. The present work demonstrates that WCO with significant levels of water and FFAs generated by the food industry can provide an economical and naturally replenished raw material for the production of diesel. Royal Society of Chemistry 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88754/1/DIESEL.pdf Alsultan, Abdulkareem Ghassan and Mijan, Nurul Asikin and Alsultan, Mustafa G. and Lee, Hwei Voon and Wilson, Karen and Yap, Taufiq Yun Hin (2020) Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel. RSC Advances, 10 (9). 4996 - 5009. ISSN 2046-2069 https://pubs.rsc.org/en/content/articlelanding/2020/ra/c9ra09516k 10.1039/c9ra09516k
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Untreated waste cooking oil (WCO) with significant levels of water and fatty acids (FFAs) was deoxygenated over Co3O4–La2O3/ACnano catalysts under an inert flow of N2 in a micro-batch closed system for the production of green diesel. The primary reaction mechanism was found to be the decarbonylation/decarboxylation (deCOx) pathway in the Co3O4–La2O3/ACnano-catalyzed reaction. The effect of cobalt doping, catalyst loading, different deoxygenation (DO) systems, temperature and time were investigated. The results indicated that among the various cobalt doping levels (between 5 and 25 wt%), the maximum catalytic activity was exhibited with the Co : La ratio of 20 : 20 wt/wt% DO under N2 flow, which yielded 58% hydrocarbons with majority diesel-range (n-(C15 + C17)) selectivity (∼63%), using 3 wt% catalyst loading at a temperature of 350 °C within 180 min. Interestingly, 1 wt% of catalyst in the micro-batch closed system yielded 96% hydrocarbons with 93% n-(C15 + C17) selectivity within 60 min at 330 °C, 38.4 wt% FFA and 5% water content. An examination of the WCO under a series of FFA (0–20%) and water contents (0.5–20 wt%) indicated an enhanced yield of green diesel, and increased involvement of the deCOx mechanism. A high water content was found to increase the decomposition of triglycerides into FFAs and promote the DO reaction. The present work demonstrates that WCO with significant levels of water and FFAs generated by the food industry can provide an economical and naturally replenished raw material for the production of diesel.
format Article
author Alsultan, Abdulkareem Ghassan
Mijan, Nurul Asikin
Alsultan, Mustafa G.
Lee, Hwei Voon
Wilson, Karen
Yap, Taufiq Yun Hin
spellingShingle Alsultan, Abdulkareem Ghassan
Mijan, Nurul Asikin
Alsultan, Mustafa G.
Lee, Hwei Voon
Wilson, Karen
Yap, Taufiq Yun Hin
Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
author_facet Alsultan, Abdulkareem Ghassan
Mijan, Nurul Asikin
Alsultan, Mustafa G.
Lee, Hwei Voon
Wilson, Karen
Yap, Taufiq Yun Hin
author_sort Alsultan, Abdulkareem Ghassan
title Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
title_short Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
title_full Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
title_fullStr Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
title_full_unstemmed Efficient deoxygenation of waste cooking oil over Co3O4–La2O3-doped activated carbon for the production of diesel-like fuel
title_sort efficient deoxygenation of waste cooking oil over co3o4–la2o3-doped activated carbon for the production of diesel-like fuel
publisher Royal Society of Chemistry
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/88754/1/DIESEL.pdf
http://psasir.upm.edu.my/id/eprint/88754/
https://pubs.rsc.org/en/content/articlelanding/2020/ra/c9ra09516k
_version_ 1713201302368944128
score 13.211869

Similar Items