Next Article in Journal
Z-Schemed WO3/rGO/SnIn4S8 Sandwich Nanohybrids for Efficient Visible Light Photocatalytic Water Purification
Next Article in Special Issue
Effect of Mg/Al2O3 and Calcination Temperature on the Catalytic Decomposition of HFC-134a
Previous Article in Journal
Plasma Catalysis: Distinguishing between Thermal and Chemical Effects
Previous Article in Special Issue
Dehydrogenation of Propane to Propylene Using Promoter-Free Hierarchical Pt/Silicalite-1 Nanosheets
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Catalysts 2019, 9(2), 186; https://doi.org/10.3390/catal9020186

Dehydration of Bioethanol to Ethylene over H-ZSM-5 Catalysts: A Scale-Up Study

1
CO2 Energy Vector Research Group, Carbon Resources Institute, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
2
Department of Green Chemistry and Biotechnology, University of Science and Technology, Daejeon 34113, Korea
3
Innovation Center for Chemical Engineering, Department of Energy and Chemical Engineering, Incheon National University, Incheon 22012, Korea
*
Authors to whom correspondence should be addressed.
Received: 21 January 2019 / Revised: 8 February 2019 / Accepted: 14 February 2019 / Published: 16 February 2019
(This article belongs to the Special Issue Synthesis and Application of Zeolite Catalysts)
Full-Text   |   PDF [2941 KB, uploaded 16 February 2019]   |  
  |   Review Reports

Abstract

Bioethanol dehydration was carried out in a bench scale reactor-loaded H-ZSM-5 molded catalyst, which increased by tens of times more than at lab scale (up to 60 and 24 times based on the amount of catalyst and ethanol flow rate, respectively). From the results of the lab scale reaction, we confirmed the optimum Si/Al ratio (14) of H-ZSM-5, reaction temperature (~250 °C), and weight hourly space velocity (WHSV) (<5 h−1) indicating high ethanol conversion and ethylene selectivity. Five types of cylindrical shaped molded catalysts were prepared by changing the type and/or amount of organic solid binder, inorganic solid binder, inorganic liquid binder, and H-ZSM-5 basis catalyst. Among them, the catalyst exhibiting the highest compression strength and good ethanol dehydration performance was selected. The bench scale reaction with varying reaction temperature of 245–260 °C and 1.2– 2.0 h−1 WHSV according to reaction time showed that the conversion and ethylene selectivity were more than 90% after 400 h on stream. It was also confirmed that even after the successive catalyst regeneration and the reaction for another 400 h, both the ethanol conversion and ethylene selectivity were still maintained at about 90%. View Full-Text
Keywords: bench scale; bioethanol; ethylene; H-ZSM-5; molded catalyst bench scale; bioethanol; ethylene; H-ZSM-5; molded catalyst
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Moon, S.; Chae, H.-J.; Park, M.B. Dehydration of Bioethanol to Ethylene over H-ZSM-5 Catalysts: A Scale-Up Study. Catalysts 2019, 9, 186.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Catalysts EISSN 2073-4344 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top