Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst
Diesel-like hydrocarbons were produced by the catalytic deoxygenation (DO) of Jatropha curcas oil (JCO) over novel Agx/AC and Niy-Agx/AC catalysts under an H2-free atmosphere. The AC was synthesized from coconut fibre residues (CFR), where CFR is the by-product from coconut milk extraction and is pa...
| 發表在: | Journal of Cleaner Production |
|---|---|
| 主要作者: | |
| 格式: | Article |
| 語言: | English |
| 出版: |
Elsevier Ltd
2020
|
| 在線閱讀: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075869354&doi=10.1016%2fj.jclepro.2019.119381&partnerID=40&md5=477ab550265b5a1c98b9c0e738deea40 |
| id |
Asikin-Mijan N.; Ooi J.M.; AbdulKareem-Alsultan G.; Lee H.V.; Mastuli M.S.; Mansir N.; Alharthi F.A.; Alghamdi A.A.; Taufiq-Yap Y.H. |
|---|---|
| spelling |
Asikin-Mijan N.; Ooi J.M.; AbdulKareem-Alsultan G.; Lee H.V.; Mastuli M.S.; Mansir N.; Alharthi F.A.; Alghamdi A.A.; Taufiq-Yap Y.H. 2-s2.0-85075869354 Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst 2020 Journal of Cleaner Production 249 10.1016/j.jclepro.2019.119381 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075869354&doi=10.1016%2fj.jclepro.2019.119381&partnerID=40&md5=477ab550265b5a1c98b9c0e738deea40 Diesel-like hydrocarbons were produced by the catalytic deoxygenation (DO) of Jatropha curcas oil (JCO) over novel Agx/AC and Niy-Agx/AC catalysts under an H2-free atmosphere. The AC was synthesized from coconut fibre residues (CFR), where CFR is the by-product from coconut milk extraction and is particularly rich in soft fibres with high mineral content. The Niy-Agx/AC catalyst afforded higher DO activity via the decarboxylation/decarbonylation (deCOx) route than Agx/AC due to the properties of Ni, synergistic interaction of Ni and Ag species, adequate amount of strong acid sites and large number of weak acid sites, which cause extensive C-O cleavage and lead to rich formation of n-(C15+C17) hydrocarbons. The effect of Ag and Ni content were studied within the 5 to 15 wt% range. An optimum Ni and Ag metal content (5 wt%) for deCOx reaction was observed. Excess Ni is not preferable due to a tendency for cracking and Ag-rich containing catalyst weakly enforced triglycerides breaking. The Ni5-Ag5/AC govern exclusively decarbonylation reaction, which corroborates the presence of Ni2+ species and a high amount of strong acid sites. Ultimately, Ni5-Ag5/AC in the present study shows excellent chemical stability with consistent five reusability without drastic reduction of hydrocarbon yield (78–95%) and n-(C15+C17) selectivity (82–83%), which indicate favourable application in JCO DO. © 2019 Elsevier Ltd 9596526 English Article All Open Access; Green Open Access |
| author |
2-s2.0-85075869354 |
| spellingShingle |
2-s2.0-85075869354 Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| author_facet |
2-s2.0-85075869354 |
| author_sort |
2-s2.0-85075869354 |
| title |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| title_short |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| title_full |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| title_fullStr |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| title_full_unstemmed |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| title_sort |
Free-H2 deoxygenation of Jatropha curcas oil into cleaner diesel-grade biofuel over coconut residue-derived activated carbon catalyst |
| publishDate |
2020 |
| container_title |
Journal of Cleaner Production |
| container_volume |
249 |
| container_issue |
|
| doi_str_mv |
10.1016/j.jclepro.2019.119381 |
| url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075869354&doi=10.1016%2fj.jclepro.2019.119381&partnerID=40&md5=477ab550265b5a1c98b9c0e738deea40 |
| description |
Diesel-like hydrocarbons were produced by the catalytic deoxygenation (DO) of Jatropha curcas oil (JCO) over novel Agx/AC and Niy-Agx/AC catalysts under an H2-free atmosphere. The AC was synthesized from coconut fibre residues (CFR), where CFR is the by-product from coconut milk extraction and is particularly rich in soft fibres with high mineral content. The Niy-Agx/AC catalyst afforded higher DO activity via the decarboxylation/decarbonylation (deCOx) route than Agx/AC due to the properties of Ni, synergistic interaction of Ni and Ag species, adequate amount of strong acid sites and large number of weak acid sites, which cause extensive C-O cleavage and lead to rich formation of n-(C15+C17) hydrocarbons. The effect of Ag and Ni content were studied within the 5 to 15 wt% range. An optimum Ni and Ag metal content (5 wt%) for deCOx reaction was observed. Excess Ni is not preferable due to a tendency for cracking and Ag-rich containing catalyst weakly enforced triglycerides breaking. The Ni5-Ag5/AC govern exclusively decarbonylation reaction, which corroborates the presence of Ni2+ species and a high amount of strong acid sites. Ultimately, Ni5-Ag5/AC in the present study shows excellent chemical stability with consistent five reusability without drastic reduction of hydrocarbon yield (78–95%) and n-(C15+C17) selectivity (82–83%), which indicate favourable application in JCO DO. © 2019 |
| publisher |
Elsevier Ltd |
| issn |
9596526 |
| language |
English |
| format |
Article |
| accesstype |
All Open Access; Green Open Access |
| record_format |
scopus |
| collection |
Scopus |
| _version_ |
1828987874016493568 |