JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Separation Engineering
Adsorptive Removal of Hydrogen Sulfide from Bioethanol-Derived Propylene
Takuji YamamotoAtsushi TakahashiTadahiro FujitaniAkira EndoTakao OhmoriKeiji SakakiHiromichi Shimada
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2012 Volume 45 Issue 12 Pages 955-959

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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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© 2012 The Society of Chemical Engineers, Japan
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