A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Kinetics and simulation of biodiesel production using a geopolymer heterogenous catalyst
This work aims to develop a comprehensive kinetic and simulation study of biodiesel production using waste cooking oil (WCO) catalyzed by blast furnace slag geopolymer (BFSG) as a heterogeneous catalyst. The kinetic investigation was established following the pseudo-first and second-order model using three reaction parameters, namely, the reaction temperature (40–60 °C), reaction time (4–8 h) and catalyst ratio (6–14 wt.%), while maintaining a constant methanol-to-oil composition of 40 wt.%. The geopolymer-catalyzed transesterification process was simulated using ChemCAD version 8.1.0, which incorporates the four major triglycerides (triolein, tripalmitin, tristearin and triolein) of WCO. The results of the transesterification reaction of WCO in a kinetic plug flow reactor (PFR) demonstrated a good fit of the data, with an R 2 above 0.96 in both cases. The pseudo-first-order (PFO) model revealed a more favorable reaction pathway, with an activation energy of 58.876 kJ.mol−1, as opposed to the value of 131.369 kJ.mol−1 obtained from the pseudo-second-order (PSO) analysis. The catalytic activity of BFSG yielded a maximum conversion of 99.18% at a 12 wt.% catalyst ratio. The study results demonstrated the effectiveness of the transesterification process catalyzed by BFSG as a promising low-cost technology for the biodiesel industry.
Kinetics and simulation of biodiesel production using a geopolymer heterogenous catalyst
This work aims to develop a comprehensive kinetic and simulation study of biodiesel production using waste cooking oil (WCO) catalyzed by blast furnace slag geopolymer (BFSG) as a heterogeneous catalyst. The kinetic investigation was established following the pseudo-first and second-order model using three reaction parameters, namely, the reaction temperature (40–60 °C), reaction time (4–8 h) and catalyst ratio (6–14 wt.%), while maintaining a constant methanol-to-oil composition of 40 wt.%. The geopolymer-catalyzed transesterification process was simulated using ChemCAD version 8.1.0, which incorporates the four major triglycerides (triolein, tripalmitin, tristearin and triolein) of WCO. The results of the transesterification reaction of WCO in a kinetic plug flow reactor (PFR) demonstrated a good fit of the data, with an R 2 above 0.96 in both cases. The pseudo-first-order (PFO) model revealed a more favorable reaction pathway, with an activation energy of 58.876 kJ.mol−1, as opposed to the value of 131.369 kJ.mol−1 obtained from the pseudo-second-order (PSO) analysis. The catalytic activity of BFSG yielded a maximum conversion of 99.18% at a 12 wt.% catalyst ratio. The study results demonstrated the effectiveness of the transesterification process catalyzed by BFSG as a promising low-cost technology for the biodiesel industry.
Kinetics and simulation of biodiesel production using a geopolymer heterogenous catalyst
Mwenge, Pascal (author) / Djemima, Bulanga (author) / Zwane, Simphiwe (author) / Muthubi, Salvation (author) / Rutto, Hilary (author) / Seodigeng, Tumisang (author)
Journal of Environmental Science and Health, Part A ; 59 ; 499-511
2024-07-28
13 pages
Article (Journal)
Electronic Resource
English
Production of biodiesel from acid oil using sulfuric acid as catalyst: kinetics study
| Oxford University Press | 2011
GEOPOLYMER PRODUCTION APPARATUS AND GEOPOLYMER PRODUCTION METHOD
| European Patent Office | 2019
| European Patent Office | 2022
Geopolymer molding production method and geopolymer molding production system
| European Patent Office | 2023