Staging of the Fischer-Tropsch reactor with an iron based catalyst

Rafiee, Ahmad ORCID: https://orcid.org/0000-0002-4750-8536 and Hillestad, Magne 2012. Staging of the Fischer-Tropsch reactor with an iron based catalyst. Computers & Chemical Engineering 39 , pp. 75-83. 10.1016/j.compchemeng.2011.11.009

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Abstract

The Fischer–Tropsch reactor is sectioned into stages based on the systematic method given by Hillestad (2010). The design functions are optimized to maximize the concentration of C11+ at the end of reactor path. The decision variables are fluid mixing, hydrogen distribution, heat transfer area distribution, coolant temperature, and catalyst concentration. With the path temperature constrained by 250 °C, staging of the reactor will increase the concentration of C11+. For a three-stage reactor, the concentration is increased by 2.50% compared to a single-stage reactor. The optimal mixing structure is plug flow to have the maximum possible conversion. A case study is conducted to separate and distribute hydrogen along the reactor path. This will reduce H2/CO at the beginning of the path and increase chain growth probability. The results show that for a three-stage reactor, the concentration of C11+ is increased by 15.93% compared to single-stage reactor.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TJ Mechanical engineering and machinery
Uncontrolled Keywords:	Reactor path; Staging; Fischer–Tropsch synthesis; Design functions; Plug flow
Publisher:	Elsevier
ISSN:	0098-1354
Last Modified:	21 Oct 2022 07:46
URI:	https://orca.cardiff.ac.uk/id/eprint/100710

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