Lipasecatalyzed Production Of Biodiesel Process Simulation And Economic Analysis 6th Edition Alsahly Et Al by Alsahly Et Al instant download after payment.

A technical and economic comparison between the alkaline and enzymatic biodiesel production
processes was evaluated based on a rate of production of ~11200 tons/year biodiesel, using Aspen Plus
and HYSYS simulation platforms. The simulations were based on the kinetics of the two processes. For
the enzymatic process, the kinetic rate was based on Ping-Pong-Bi-Bi mechanism and incorporating an
expression for the effect of enzyme loading on the rate of reaction. Two simulation options were done
for the enzymatic process: a once-through process where the glycerol is separated at the exit of the
continuous stirred tank reactors (CSTRs) and the other with an inter-reactor separation of glycerol. The
results of kinetic reactor simulation and reactor staging design may be more realistic than those based
on assumed reactor conversion in one or two stages reported by previous investigators. The economic
evaluation revealed that the enzymatic process with inter-reactor separation of glycerol may be more
economically attractive than the other two alternatives.
Key words: Biodiesel, economic evaluation, enzyme loading, kinetic reactor simulation.