Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO
Calcination; Catalyst selectivity; Diesel engines; Potassium compounds; Pyrolysis; Silicon; Silicon compounds; Calcined dolomite; Deoxygenation reactions; Deoxygenations; Green diesels; K2O/SiO2 catalyst; Performance; Reusability & regeneration; Waste cooking oil; ]+ catalyst; Reusability
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2023
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my.uniten.dspace-272752023-05-29T17:42:00Z Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO Hafriz R.S.R.M. Nor Shafizah I. Arifin N.A. Maisarah A.H. Salmiaton A. Shamsuddin A.H. 57204588040 57219439251 57195493347 57651557900 57193906995 35779071900 Calcination; Catalyst selectivity; Diesel engines; Potassium compounds; Pyrolysis; Silicon; Silicon compounds; Calcined dolomite; Deoxygenation reactions; Deoxygenations; Green diesels; K2O/SiO2 catalyst; Performance; Reusability & regeneration; Waste cooking oil; ]+ catalyst; Reusability In this work, the comparative study on the performance of K2O/SiO2 and calcined dolomite catalysts was conducted via deoxygenation of waste cooking oil (WCO). KSi catalyst has the potential as a deoxygenation catalyst due to mesoporous structure catalyst with high base properties which enhance oxygen removal. The result found that K2O/SiO2 catalyst could be used in the deoxygenation of WCO generating a high yield of pyrolysis oil as compared to thermal deoxygenation and calcined dolomite catalyst. Besides that, the reusability and regeneration of the K2O/SiO2 catalyst were evaluated in the deoxygenation reaction using WCO as a feedstock. Five consecutive runs of reusability test and three successive cycles with two regenerations were performed. The reusability and followed by regeneration tests were conducted at conditions: 30 min of reaction time, 390 � 5 �C reaction temperature and 150 cm3/min of N2 flow rate. The liquid products obtained from each cycle were analyzed by GC�MS. The deoxygenation of WCO using K2O/SiO2 catalyst rendered higher selectivity towards diesel products (C13-C24). The K2O/SiO2 catalyst presented a good performance in reusability and regenerability test with only ?19.3�22.4% dropped in pyrolysis oil yield after 5 consecutive runs and only ?11.20�13.23% drop in diesel yield after regeneration. The results showed that K2O/SiO2 catalyst has tremendous stability in the deoxygenation of WCO into green diesel and could be the alternative deoxygenation base catalyst for the deoxygenation process. � 2022 The Authors Final 2023-05-29T09:42:00Z 2023-05-29T09:42:00Z 2022 Article 10.1016/j.ecmx.2021.100173 2-s2.0-85122636796 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122636796&doi=10.1016%2fj.ecmx.2021.100173&partnerID=40&md5=ba12f67e5ec8d9394310d972db800ed5 https://irepository.uniten.edu.my/handle/123456789/27275 13 100173 All Open Access, Gold Elsevier Ltd Scopus |
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Calcination; Catalyst selectivity; Diesel engines; Potassium compounds; Pyrolysis; Silicon; Silicon compounds; Calcined dolomite; Deoxygenation reactions; Deoxygenations; Green diesels; K2O/SiO2 catalyst; Performance; Reusability & regeneration; Waste cooking oil; ]+ catalyst; Reusability |
| author2 |
57204588040 |
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57204588040 Hafriz R.S.R.M. Nor Shafizah I. Arifin N.A. Maisarah A.H. Salmiaton A. Shamsuddin A.H. |
| format |
Article |
| author |
Hafriz R.S.R.M. Nor Shafizah I. Arifin N.A. Maisarah A.H. Salmiaton A. Shamsuddin A.H. |
| spellingShingle |
Hafriz R.S.R.M. Nor Shafizah I. Arifin N.A. Maisarah A.H. Salmiaton A. Shamsuddin A.H. Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| author_sort |
Hafriz R.S.R.M. |
| title |
Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| title_short |
Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| title_full |
Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| title_fullStr |
Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| title_full_unstemmed |
Comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of WCO |
| title_sort |
comparative, reusability and regeneration study of potassium oxide-based catalyst in deoxygenation reaction of wco |
| publisher |
Elsevier Ltd |
| publishDate |
2023 |
| _version_ |
1806427987421167616 |
| score |
13.222552 |