Publication: The catalytic deoxygenation reaction temperature and N2 gas flow rate influence the conversion of soybean fatty acids into Green Diesel
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Date
2024
Authors
Hafriz R.S.R.M.
Habib S.H.
Raof N.A.
Razali S.Z.
Yunus R.
Razali N.M.
Salmiaton A.
Journal Title
Journal ISSN
Volume Title
Publisher
Taiwan Institute of Chemical Engineers
Abstract
Background: Green diesel is a promising alternative as a petroleum replacement given the worldwide demand for petroleum fuel. Environmental issues have drawn public attention and concerns towards advancing renewable energy development. A catalytic deoxygenation (deCOx) was carried out to produce green diesel from soybean oil (SO) using a low-cost NiO-doped calcined dolomite (NiO[sbnd]CD) catalyst. Method: The structure, chemical composition and morphology of NiO[sbnd]CD were comprehensively characterized by XRF, BET, TPD-CO2, SEM and TEM. In this study, the effect of two operating parameters, reaction temperature and flow rate of nitrogen, was discovered using a one-factor-at-a-time (OFAT) optimisation study. In addition, the life cycle cost analysis (LCCA) of stepwise catalyst preparation and green diesel production has been performed. Significant findings: An optimal reaction temperature of 420 �C was found to provide the highest yield of green diesel (47.13 wt.%) with an 83.51% hydrocarbon composition. The ideal nitrogen flow rate, however, was found to be 50 cm3/min, which produced 41.80 wt.% of green diesel with an 88.63% hydrocarbon composition. The deoxygenation reaction was significantly impacted by both reaction temperature and nitrogen flow rate. According to LCCA, NiO[sbnd]CD catalyst has potential to lower the overall cost of producing green diesel compared to commercial zeolite catalysts. ? 2024
Description
Keywords
Catalysts , Cost benefit analysis , Diesel fuels , Gasoline , Calcined dolomite , Catalytic deoxygenation , Deoxygenation reactions , Deoxygenations , Green diesels , Hydrocarbon compositions , Life cycle costs analysis , NiO-calcined dolomite , Reaction temperature , ]+ catalyst