Mesoporous Acidic Catalysts Synthesis from Dual-Stage and Rising Co-Current Gasification Char: Application for FAME Production from Waste Cooking Oil
Open Access
- 15 February 2020
- Vol. 13 (4), 871
- https://doi.org/10.3390/ma13040871
Abstract
The main purpose of this work is to investigate the application options of the char produced from gasification plants. Two promising mesoporous acidic catalysts were synthesized using char as a support material. Two char samples were collected from either a dual-stage or a rising co-current biomass gasification plant. The catalysts produced from both gasification char samples were characterized for their physiochemical and morphological properties using N2 physorption measurement, total acidity evaluation through TPD-NH3, functional groups analysis by FT-IR, and morphology determination via FESEM. Results revealed that the dual-stage char-derived mesoporous catalyst (DSC-SO4) with higher specific surface area and acidic properties provided higher catalytic activity for fatty acid methyl esters (FAME) production from waste cooking oil (WCO) than the mesoporous catalyst obtained from char produced by rising co-current gasification (RCC-SO4). Furthermore, the effects of methanol/oil molar ratio (3:1–15:1), catalyst concentration (1–5 wt.% of oil), and reaction time (30–150 min) were studied while keeping the transesterification temperature constant at 65 °C. The optimal reaction conditions for the transesterification of WCO were 4 wt.% catalyst concentration, 12:1 methanol/oil molar ratio, and 90 min operating time. The optimized reaction conditions resulted in FAME conversions of 97% and 83% over DSC-SO4 and RCC-SO4 catalysts, respectively. The char-based catalysts show excellent reusability, since they could be reused six times without any modification.Funding Information
- Pusat Transformasi Komuniti Universiti , Universiti Putra Malaysia (GP-IPB/2016/9490400)
- King Saud University (RSP-2019/80)
This publication has 28 references indexed in Scilit:
- Transesterification of waste cooking oil for biodiesel production catalyzed by Zn substituted waste egg shell derived CaO nanocatalystFuel, 2019
- Synthesis of tetragonal sulfated zirconia via a novel route for biodiesel productionJournal of Fuel Chemistry and Technology, 2017
- Post-functionalization of polymeric mesoporous C@Zn core–shell spheres used for methyl ester productionRenewable Energy, 2016
- Biodiesel production in the presence of sulfonated mesoporous ZnAl2O4 catalyst via esterification of palm fatty acid distillate (PFAD)Fuel, 2016
- Biochar-based nano-composites for the decontamination of wastewater: A reviewBioresource Technology, 2016
- Effects of binders on the properties of bio-char pelletsApplied Energy, 2015
- A calcium oxide-based catalyst derived from palm kernel shell gasification residues for biodiesel productionFuel, 2015
- In-situ catalytic conversion of tar using rice husk char-supported nickel-iron catalysts for biomass pyrolysis/gasificationApplied Catalysis B: Environmental, 2014
- Effective conversion of non-edible oil with high free fatty acid into biodiesel by sulphonated carbon catalystApplied Energy, 2014
- Muskmelon (Cucumis melo) seed oil: A potential non-food oil source for biodiesel productionEnergy, 2011