H2S adsorption by Ag and Cu ion exchanged faujasites

Parveen Kumar; Chun Yi Sung; Oki Muraza; Matteo Cococcioni; Saleh Al Hashimi; Alon McCormick; Michael Tsapatsis

doi:10.1016/j.micromeso.2011.05.014

H₂S adsorption by Ag and Cu ion exchanged faujasites

Parveen Kumar, Chun Yi Sung, Oki Muraza, Matteo Cococcioni, Saleh Al Hashimi, Alon McCormick, Michael Tsapatsis

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

H₂S adsorption from dilute streams containing He, N₂, CO₂, CO, and H₂O was studied experimentally and by simulations for zeolites X and Y to evaluate their potential for Claus tail gas sulfur removal. Ag-X and Y were able to remove H₂S in presence of all other species. CuX and CuY were efficient in removing H₂S in the presence of N₂, CO₂, and water vapor but failed to remove H₂S in presence of 2% CO. In agreement with the experimental findings, simulation results showed that Ag(I)-exchange leads to the most promising faujasite sorbent for H₂S, whereas Cu(I) is subject to strong adsorption of CO, and Na, and Cu(II) are subject to strong adsorption of H₂O.

Original language	English (US)
Pages (from-to)	127-133
Number of pages	7
Journal	Microporous and Mesoporous Materials
Volume	146
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2011.05.014
State	Published - Dec 1 2011

Keywords

Adsorption
DFT
Desulfurization
EPR
Ion exchange

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title = "H2S adsorption by Ag and Cu ion exchanged faujasites",

abstract = "H2S adsorption from dilute streams containing He, N2, CO2, CO, and H2O was studied experimentally and by simulations for zeolites X and Y to evaluate their potential for Claus tail gas sulfur removal. Ag-X and Y were able to remove H2S in presence of all other species. CuX and CuY were efficient in removing H2S in the presence of N2, CO2, and water vapor but failed to remove H2S in presence of 2% CO. In agreement with the experimental findings, simulation results showed that Ag(I)-exchange leads to the most promising faujasite sorbent for H2S, whereas Cu(I) is subject to strong adsorption of CO, and Na, and Cu(II) are subject to strong adsorption of H2O.",

keywords = "Adsorption, DFT, Desulfurization, EPR, Ion exchange",

author = "Parveen Kumar and Sung, {Chun Yi} and Oki Muraza and Matteo Cococcioni and {Al Hashimi}, Saleh and Alon McCormick and Michael Tsapatsis",

year = "2011",

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doi = "10.1016/j.micromeso.2011.05.014",

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T1 - H2S adsorption by Ag and Cu ion exchanged faujasites

AU - Kumar, Parveen

AU - Sung, Chun Yi

AU - Muraza, Oki

AU - Cococcioni, Matteo

AU - Al Hashimi, Saleh

AU - McCormick, Alon

AU - Tsapatsis, Michael

PY - 2011/12/1

Y1 - 2011/12/1

N2 - H2S adsorption from dilute streams containing He, N2, CO2, CO, and H2O was studied experimentally and by simulations for zeolites X and Y to evaluate their potential for Claus tail gas sulfur removal. Ag-X and Y were able to remove H2S in presence of all other species. CuX and CuY were efficient in removing H2S in the presence of N2, CO2, and water vapor but failed to remove H2S in presence of 2% CO. In agreement with the experimental findings, simulation results showed that Ag(I)-exchange leads to the most promising faujasite sorbent for H2S, whereas Cu(I) is subject to strong adsorption of CO, and Na, and Cu(II) are subject to strong adsorption of H2O.

AB - H2S adsorption from dilute streams containing He, N2, CO2, CO, and H2O was studied experimentally and by simulations for zeolites X and Y to evaluate their potential for Claus tail gas sulfur removal. Ag-X and Y were able to remove H2S in presence of all other species. CuX and CuY were efficient in removing H2S in the presence of N2, CO2, and water vapor but failed to remove H2S in presence of 2% CO. In agreement with the experimental findings, simulation results showed that Ag(I)-exchange leads to the most promising faujasite sorbent for H2S, whereas Cu(I) is subject to strong adsorption of CO, and Na, and Cu(II) are subject to strong adsorption of H2O.

KW - Adsorption

KW - DFT

KW - Desulfurization

KW - EPR

KW - Ion exchange

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