Adsorptive Removal of Hydrogen Sulfide from Bioethanol-Derived Propylene

Takuji Yamamoto; Atsushi Takahashi; Tadahiro Fujitani; Akira Endo; Takao Ohmori; Keiji Sakaki; Hiromichi Shimada

doi:10.1252/jcej.12we101

Separation Engineering

Adsorptive Removal of Hydrogen Sulfide from Bioethanol-Derived Propylene

Takuji Yamamoto, Atsushi Takahashi, Tadahiro Fujitani, Akira Endo, Takao Ohmori, Keiji Sakaki, Hiromichi Shimada

Author information

Takuji Yamamoto
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Atsushi Takahashi
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Tadahiro Fujitani
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Akira Endo
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Takao Ohmori
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Keiji Sakaki
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
Hiromichi Shimada
Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)

Keywords: Activated Alumina, Adsorptive Desulfurization, Packed-Bed Breakthrough Curve, Propylene

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2012 Volume 45 Issue 12 Pages 955-959

DOI https://doi.org/10.1252/jcej.12we101

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Abstract

To synthesize polymer-grade propylene from bioethanol containing an organosulfur compound such as dimethylsulfide (DMS) or dimethylsulfoxide (DMSO), we examined the adsorptive desulfurization of propylene by employing commercial activated alumina. It was found that both DMS and DMSO were converted predominantly to hydrogen sulfide during the catalytic conversion of ethanol to propylene over HZSM-5 zeolite. The performance of the adsorbent was evaluated by measuring a packed-bed breakthrough curve for the adsorption of hydrogen sulfide in gaseous propylene. Because of the adsorptive desulfurization, the concentration of hydrogen sulfide in propylene could be reduced to less than 10 ppb.

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