Preliminary study on CFD simulation of multiphase flow mixing in brown coal liquefaction reactor.

Novia, Novia and Agustina, Tuty E. and Santoso, Budi and Murti, Sumbogo Preliminary study on CFD simulation of multiphase flow mixing in brown coal liquefaction reactor. In: Proceeding of Sriwijaya International Seminar on Energy Science and Technology (SISEST) 2008. Sriwijaya University, Palembang. ISBN 978-979-18845-0-1

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Abstract

Coal liquefaction is a process to convert solid coal into a liquid under high pressure and temperature. In order to obtain the fuel and to improve the efficiency of the process, hydrogen and catalyst must be added under this condition. Direct liquefaction of brown coal was carried out on 1 liter autoclave with limonite catalyst and heavy oil as a solvent. The operating condition was 450oC and 12 MPa, residence time of 0-60 minutes. Detailed investigation of the flow pattern in the reactor is very important for the process optimization. This preliminary study presents twodimensional transient multiphase flow model in Brown Coal Liquefaction (BCL) reactor using CFD. The model emonstrated the capability of commercial CFD code fluent 6.3 to describe the flow pattern in the rector. The model predicted the distribution of temperature, solid volume fraction and velocity vector in the reactor. Keywords: CFD, Brown coal liquefaction, multiphase flow

Item Type:	Book Section
Subjects:	T Technology > TP Chemical technology > TP1-1185 Chemical technology
Divisions:	03-Faculty of Engineering > 24201-Chemical Engineering (S1)
Depositing User:	Dr. Tuty Emilia Agustina
Date Deposited:	16 Oct 2019 09:14
Last Modified:	16 Oct 2019 09:14
URI:	http://repository.unsri.ac.id/id/eprint/10903

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