Enhancement of stability of Pd/AC deoxygenation catalyst for hydrothermal production of green diesel fuel from waste cooking oil
CHEMICAL ENGINEERING SCIENCE, vol.251, 2022 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 251
- Publication Date: 2022
- Doi Number: 10.1016/j.ces.2022.117489
- Journal Name: CHEMICAL ENGINEERING SCIENCE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aqualine, Biotechnology Research Abstracts, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Pollution Abstracts, zbMATH, DIALNET, Civil Engineering Abstracts
- Keywords: Green diesel fuel, Activated carbon, Deoxygenation catalyst, Waste cooking oil, Stability, BIODIESEL PRODUCTION, ACTIVATED CARBON, FATTY-ACIDS, VEGETABLE-OILS, SURFACE-AREA, GAS OIL, CONVERSION, BIOMASS, HYDRODEOXYGENATION, HYDROCARBONS
- Ondokuz Mayıs University Affiliated: Yes
Abstract
Nowadays, one of the most challenging problems in the production of green diesel fuel from fats sources is the deactivation of the deoxygenation catalyst after a certain period of time. The structure of the catalyst is damaged due to several problems and the performance is degrading over time. In this work, a high stability deoxygenation catalyst was prepared from agricultural waste and used for hydrothermal production of green diesel fuel from waste cooking oil. The support of the catalyst was prepared using apricot seeds. Palladium (Pd) was loaded by the incipient wetness impregnation method. The Pd/AC substrate was coated by a nanofilm aluminum protective layer using the sol-gel method to prevent rapid deactivation of the catalyst, prolong the catalyst lifetime and enhance the stability. The characterization tests showed good thermal stability, a uniform coating around the Pd/AC substrate, and a high surface area of 726.9 m(2)/g of the coated catalyst.