CFD Simulation of Microchannel Reactor Block for Fischer-Tropsch Synthesis: Effect of Coolant Type and Wall Boiling Condition on Reactor Temperature
- Authors
- Kshetrimayum, Krishnadash S.; Jung, Ikhwan; Na, Jonggeol; Park, Seongho; Lee, Yongkyu; Park, Seongeon; Lee, Chul-Jin; Han, Chonghun
- Issue Date
- Jan-2016
- Publisher
- AMER CHEMICAL SOC
- Citation
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.55, no.3, pp 543 - 554
- Pages
- 12
- Journal Title
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- Volume
- 55
- Number
- 3
- Start Page
- 543
- End Page
- 554
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/48809
- DOI
- 10.1021/acs.iecr.5b03283
- ISSN
- 0888-5885
1520-5045
- Abstract
- Computational fluid dynamic (CFD) simulation of heat transfer in a microchannel reactor block for low temperature Fischer-Tropsch (FT) synthesis was considered. Heat generation profiles for different operating conditions (GHSV 5000 h(-1); catalyst loading 60%-120%, where 100% loading equals 1060 kg/m(3) of cobalt based catalyst from Oxford Catalyst Ltd.) were obtained from a single channel model. Simulations on a reactor block quantified the effects of three coolant types: cooling oil (Merlotherm SH), subcooled water and saturated water, on reactor temperature, and also evaluated the effect of wall boiling conditions. At process conditions of GHSV 5000 h(-1) and catalyst loading of 120%, predicted temperature gradients along channel length were 32, 17 and 12 K for cooling oil, subcooled water and saturated water, respectively. A modified reactor block showed improved thermal performance as well as heat transfer enhancement due to wall boiling conditions.
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