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Chemical and Biochemical Engineering Quarterly, Vol. 33 No. 2, 2019.

Original scientific paper

https://doi.org/10.15255/CABEQ.2019.1623

Effects of Raschig Ring Packing Patterns on Pressure Drop, Heat Transfer, Methane Conversion, and Coke Deposition on a Semi-pilot-scale Packed Bed Reformer

N. Chutichairattanaphum ; a)Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand; b)Research and Development Center for Chemical Engineering Unit Operation and Catalyst Design (RCC), King Mongku
P. Narataruksa ; a)Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand; b)Research and Development Center for Chemical Engineering Unit Operation and Catalyst Design (RCC), King Mongku
K. Pana-suppamassadu ; a)Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand; b)Research and Development Center for Chemical Engineering Unit Operation and Catalyst Design (RCC), King Mongku
S. Tungkamani ; b)Research and Development Center for Chemical Engineering Unit Operation and Catalyst Design (RCC), King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand; c)Department of Industrial Chemistry, Faculty of Applied Science, King Mo
C. Prapainainar ; a)Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand; b)Research and Development Center for Chemical Engineering Unit Operation and Catalyst Design (RCC), King Mongku
S. Chotiwan ; Department of Chemistry, Faculty of Science, Kasetsart University, Ladyao, Chatuchak, Bangkok 10900, Thailand
W. Wattanathana ; Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Ladyao, Chatuchak, Bangkok 10900, Thailand

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Abstract

The effects of Raschig ring packing patterns on the efficiency of dry methane reforming reactions were investigated using computational fluid dynamics (CFD). The present study aims to understand the behavior of fluid flow in packed bed reactors, especially under low reactor-to-ring ratios between 4 and 8. Three packing patterns were
studied: vertical staggered (VS), chessboard staggered (CS), and reciprocal staggered (RS). It was determined that packing pattern notably affected pressure drop across the reactor length. The VS pattern produced the lowest pressure drop of 223 mPa, while the
CS and RS patterns produced pressure drops of 228 mPa and 308 mPa, respectively. The values of methane conversion can be increased by ca. 2 % by selecting a more suitable packing pattern (i.e., 76 % for the VS pattern and 74 % for the CS and RS patterns).







This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

packed bed reactor; Raschig ring; dry methane reforming; reactions kinetics

Hrčak ID:

223890

URI

https://hrcak.srce.hr/223890

Publication date:

31.7.2019.

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