Supercritical biodiesel production and power cogeneration: technical and economic feasibilities

Bioresource Technology
A DeshpandeL L Tavlarides

Abstract

An integrated supercritical fluid technology with power cogeneration to produce biodiesel fuels, with no need for the costly separations involved with the conventional technology, is proposed, documented for technical and economic feasibility, and preliminarily designed. The core of the integrated system consists of the transesterification of various triglyceride sources (e.g., vegetable oils and animal fats) with supercritical methanol/ethanol. Part of the reaction products can be combusted by a diesel power generator integrated in the system which, in turn, provides the power needed to pressurize the system and the heat of the exhaust gases necessary in the transesterification step. The latter energy demand can also be satisfied by a fired heater, especially for higher plant capacities. Different versions of this system can be implemented based on the main target of the technology: biodiesel production or diesel engine applications, including power generation. The process options considered for biodiesel fuel production estimate break-even processing costs of biodiesel as low as $0.26/gal ($0.07/L) with a diesel power generator and $0.35/gal ($0.09/L) with a fired heater for a plant capacity of 15,000 gal/day (56,775 L/day). ...Continue Reading

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Citations

Nov 8, 2012·Bioresource Technology·Pranjali D Muley, Dorin Boldor
Jul 11, 2012·Bioresource Technology·Ruengwit SawangkeawSomkiat Ngamprasertsith
Aug 6, 2015·The Journal of Physical Chemistry. a·Evandro L Dall'OglioCarlos Alberto Kuhnen
Apr 10, 2013·Bioresource Technology·Robert B LevinePhillip E Savage
Apr 23, 2010·Chemistry, an Asian Journal·Tahseen Razzaq, C Oliver Kappe
Jun 3, 2021·Biotechnology for Biofuels·Mustafa Kamal PashaWei Du

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