Design of a radio frequency heated isothermal micro-trickle bed reactor

Aiouache, Farid (2014) Design of a radio frequency heated isothermal micro-trickle bed reactor. Chemical Engineering Journal, 243. pp. 225-233. ISSN 1385-8947

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Abstract

Abstract A near-isothermal micro-trickle bed reactor operated under radio frequency heating was developed. The reactor bed was packed with nickel ferrite micro-particles of 110 mu m diameter, generating heat by the application of RF field at 180 kHz. Hydrodynamics in a co-current configuration was analysed and heat transfer rates were determined at temperature ranging from 55 to 100 degrees C. A multi-zone reactor bed of several heating and catalytic zones was proposed in order to achieve near-isothermal operations. Exact positioning, number of the heating zones and length of the heating zones composed of a mixture of nickel ferrite and a catalyst were determined by solving a one dimensional model of heat transfer by conduction and convection. The conductive losses contributed up to 30% in the total thermal losses from the reactor. Three heating zones were required to obtain an isothermal length of 50 mm with a temperature non-uniformity of 2 K. A good agreement between the modelling and experimental results was obtained for temperature profiles of the reactor. (C) 2013 Elsevier B.V. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Chemical Engineering Journal
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2209
Subjects:
ID Code:
70792
Deposited By:
Deposited On:
15 Sep 2014 10:08
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Jan 2020 02:22