Adsorption of light hydrocarbons on HMS type mesoporous silica

B. L. Newalkar; N. V. Choudary; U. T. Turaga; R. P. Vijayalakshmi; P. Kumar; S. Komarneni; T. S.G. Bhat

doi:10.1016/j.micromeso.2003.08.008

Adsorption of light hydrocarbons on HMS type mesoporous silica

B. L. Newalkar, N. V. Choudary, U. T. Turaga, R. P. Vijayalakshmi, P. Kumar, S. Komarneni, T. S.G. Bhat

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

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Abstract

Equilibrium adsorption isotherms for light hydrocarbons namely, ethane, ethylene, acetylene, propane, and propylene have been measured on hexagonal mesoporous silica (HMS)-type mesoporous silica. The measured data are analyzed using Langmuir-Freundlich adsorption isotherm model. The adsorption capacity for C₂ and C₃ olefins are found to be higher than for corresponding alkanes. Further, uptake of acetylene is observed to be more comparable to ethylene. The isosteric heats of adsorption for ethylene are marginally higher than ethane but those observed for propylene are found to be significantly higher than for propane. The isosteric heats observed for propylene are found to be comparable with those reported for π-complexation based systems. Such a trend has in turn suggested a higher affinity of HMS framework for propylene over propane.

Original language	English (US)
Pages (from-to)	267-276
Number of pages	10
Journal	Microporous and Mesoporous Materials
Volume	65
Issue number	2-3
DOIs	https://doi.org/10.1016/j.micromeso.2003.08.008
State	Published - Nov 4 2003

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials

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title = "Adsorption of light hydrocarbons on HMS type mesoporous silica",

abstract = "Equilibrium adsorption isotherms for light hydrocarbons namely, ethane, ethylene, acetylene, propane, and propylene have been measured on hexagonal mesoporous silica (HMS)-type mesoporous silica. The measured data are analyzed using Langmuir-Freundlich adsorption isotherm model. The adsorption capacity for C2 and C3 olefins are found to be higher than for corresponding alkanes. Further, uptake of acetylene is observed to be more comparable to ethylene. The isosteric heats of adsorption for ethylene are marginally higher than ethane but those observed for propylene are found to be significantly higher than for propane. The isosteric heats observed for propylene are found to be comparable with those reported for π-complexation based systems. Such a trend has in turn suggested a higher affinity of HMS framework for propylene over propane.",

author = "Newalkar, {B. L.} and Choudary, {N. V.} and Turaga, {U. T.} and Vijayalakshmi, {R. P.} and P. Kumar and S. Komarneni and Bhat, {T. S.G.}",

note = "Funding Information: Authors (BLN and SK) gratefully acknowledge the support of this work by the NSF MRSEC program under grant number, DMR-0213623. NVC, PK and TB are thankful to the management of Indian Petrochemicals Corporation Limited (IPCL), Vadodara, India, for supporting this work. The authors are also thankful to Mr. S.P. Patel, IPCL, India, for his assistance during adsorption measurements. ",

year = "2003",

month = nov,

day = "4",

doi = "10.1016/j.micromeso.2003.08.008",

language = "English (US)",

volume = "65",

pages = "267--276",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Adsorption of light hydrocarbons on HMS type mesoporous silica

AU - Newalkar, B. L.

AU - Choudary, N. V.

AU - Turaga, U. T.

AU - Vijayalakshmi, R. P.

AU - Kumar, P.

AU - Komarneni, S.

AU - Bhat, T. S.G.

N1 - Funding Information: Authors (BLN and SK) gratefully acknowledge the support of this work by the NSF MRSEC program under grant number, DMR-0213623. NVC, PK and TB are thankful to the management of Indian Petrochemicals Corporation Limited (IPCL), Vadodara, India, for supporting this work. The authors are also thankful to Mr. S.P. Patel, IPCL, India, for his assistance during adsorption measurements.

PY - 2003/11/4

Y1 - 2003/11/4

N2 - Equilibrium adsorption isotherms for light hydrocarbons namely, ethane, ethylene, acetylene, propane, and propylene have been measured on hexagonal mesoporous silica (HMS)-type mesoporous silica. The measured data are analyzed using Langmuir-Freundlich adsorption isotherm model. The adsorption capacity for C2 and C3 olefins are found to be higher than for corresponding alkanes. Further, uptake of acetylene is observed to be more comparable to ethylene. The isosteric heats of adsorption for ethylene are marginally higher than ethane but those observed for propylene are found to be significantly higher than for propane. The isosteric heats observed for propylene are found to be comparable with those reported for π-complexation based systems. Such a trend has in turn suggested a higher affinity of HMS framework for propylene over propane.

AB - Equilibrium adsorption isotherms for light hydrocarbons namely, ethane, ethylene, acetylene, propane, and propylene have been measured on hexagonal mesoporous silica (HMS)-type mesoporous silica. The measured data are analyzed using Langmuir-Freundlich adsorption isotherm model. The adsorption capacity for C2 and C3 olefins are found to be higher than for corresponding alkanes. Further, uptake of acetylene is observed to be more comparable to ethylene. The isosteric heats of adsorption for ethylene are marginally higher than ethane but those observed for propylene are found to be significantly higher than for propane. The isosteric heats observed for propylene are found to be comparable with those reported for π-complexation based systems. Such a trend has in turn suggested a higher affinity of HMS framework for propylene over propane.

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U2 - 10.1016/j.micromeso.2003.08.008

DO - 10.1016/j.micromeso.2003.08.008

M3 - Article

AN - SCOPUS:0242407347

SN - 1387-1811

VL - 65

SP - 267

EP - 276

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 2-3

ER -

Adsorption of light hydrocarbons on HMS type mesoporous silica

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