Environment-friendly deoxygenation of non-edible Ceiba oil to liquid hydrocarbon biofuel: process parameters and optimization study.

Autor: Abdullah NHB; Nanotechnology and Catalysis Research Centre (NanoCat), Institute of Advances Studies, Universiti Malaya, 50603, Kuala Lumpur, Malaysia., Mijan NA; Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor Darul Ehsan, Malaysia., Taufiq-Yap YH; Catalysis Science and Technology Research Centre (PutraCAT), Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.; Chancellery Office, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia., Ong HC; Future Technology Research Center, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin, 64002, Taiwan. ong1983@yahoo.com.; Centre for Green Technology, Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW, 2007, Australia. ong1983@yahoo.com., Lee HV; Nanotechnology and Catalysis Research Centre (NanoCat), Institute of Advances Studies, Universiti Malaya, 50603, Kuala Lumpur, Malaysia. leehweivoon@um.edu.my.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2022 Jul; Vol. 29 (34), pp. 51143-51152. Date of Electronic Publication: 2022 Jan 25.
DOI: 10.1007/s11356-022-18508-4
Abstrakt: Non-edible Ceiba oil has the potential to be a sustainable biofuel resource in tropical countries that can replace a portion of today's fossil fuels. Catalytic deoxygenation of the Ceiba oil (high O/C ratio) was conducted to produce hydrocarbon biofuel (high H/C ratio) over NiO-CaO 5 /SiO 2 -Al 2 O 3 catalyst with aims of high diesel selectivity and catalyst reusability. In the present study, response surface methodology (RSM) technique with Box-Behnken experimental designs (BBD) was used to evaluate and optimize liquid hydrocarbon yield by considering the following deoxygenation parameters: catalyst loading (1-9 wt. %), reaction temperature (300-380 °C) and reaction time (30-180 min). According to the RSM results, the maximum yield for liquid hydrocarbon n-(C 8 -C 20 ) was found to be 77% at 340 °C within 105 min and 5 wt. % catalyst loading. In addition, the deoxygenation model showed that the catalyst loading-reaction time interaction has a major impact on the deoxygenation activity. Based on the product analysis, oxygenated species from Ceiba oil were successfully removed in the form of CO 2 /CO via decarboxylation/decarbonylation (deCOx) pathways. The NiO-CaO 5 /SiO 2 -Al 2 O 3 catalyst rendered stable reusability for five consecutive runs with liquid hydrocarbon yield within the range of 66-75% with n-(C 15  + C 17 ) selectivity of 64-72%. Despite this, coke deposition was observed after several times of catalyst usage, which is due to the high deoxygenation temperature (> 300 °C) that resulted in unfavourable polymerization side reaction.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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