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Design, manufacture and application of a microreactor for the decomposition of ethyl mercaptan on an H-ZSM-5 catalyst

Hosseinpour, V ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jclepro.2021.126036
  3. Publisher: Elsevier Ltd , 2021
  4. Abstract:
  5. Catalytic decomposition of the ethyl mercaptan over an H-ZSM-5 zeolite in a newly designed microreactor was undertaken in this study. A numerically developed distributor possessing superior flow distribution was amended to 24 parallel microchannels with 64 mm length, 700 μm width, and 600 μm depth. Ethyl mercaptan complete conversion required 350 °C through the developed microreactor while in a conventional fixed-bed-reactor 400 °C was needed. Higher selectivity towards the main products of this decomposition (hydrogen sulfide and ethylene) were observed in this microreactor in comparison to that of a fixed-bed-reactor. In addition, lower selectivity towards formation of byproducts was displayed in the former. Investigation of the WHSV variations upon the product distribution through this microreactor revealed that, conversion of the ethyl mercaptan was reduced to 60 from the 89% through enhancement of the feed rate from 0.32 to 0.48 h−1. © 2021 Elsevier Ltd
  6. Keywords:
  7. Ethylene ; Hydrogen sulfide ; Sulfur compounds ; Zeolites ; Catalytic decomposition ; Ethyl mercaptans ; Fixed bed reactor ; H-zsm-5 catalysts ; HZSM-5 zeolites ; Parallel microchannels ; Product distributions ; Superior flows ; Chemical reactors
  8. Source: Journal of Cleaner Production ; Volume 292 , 2021 ; 09596526 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0959652621002560