NDLI: Study of carbon dioxide and methane equilibrium adsorption on silicoaluminophosphate-34 zeotype and T-type zeolite as adsorbent

Content Provider	Springer Nature Link
Author	Jadidi, F. Salmasi, M. Doroudian Rad, M. Fatemi, S.
Copyright Year	2013
Abstract	Carbon dioxide is known as a hazardous material with acidic property that can be found as impurity in natural gas reservoirs with a broad range of 2 up to 40 %. Therefore, many efforts have been directed to remove and separate carbon dioxide from methane to prevent corrosion problems as well as improving the natural gas energy content. In this study, two molecular sieves, silicoaluminophosphate-34 (SAPO-34) zeotype and T-type zeolite, were synthesized by the hydrothermal method for the comparative study of adsorptive separation of carbon dioxide from methane. The synthesized adsorbents were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Brunner–Emmett–Teller techniques. These characterization tests confirmed formation of both materials with acceptable crystallinity. Both adsorbents were tested in equilibrium adsorption experiments in order to evaluate maximum capacity and adsorption affinity. Adsorption capacity of carbon dioxide and methane on SAPO-34 and zeolite T were measured in a pressure range of 0.1–2.0 MPa and temperature of 288, 298, and 308 K and fitted with the Sips and Langmuir isotherm models. The ideal selectivity of CO$_{2}$/CH$_{4}$ was determined for SAPO-34 and zeolite T at the studied pressures and temperatures, indicating that the molecular sieves can be properly used for CO$_{2}$–CH$_{4}$ separation or CO$_{2}$ capturing from natural gas.
Starting Page	1067
Ending Page	1074
Page Count	8
File Format	PDF
ISSN	17351472
Journal	International Journal of Environmental Science & Technology
Volume Number	10
Issue Number	5
e-ISSN	17352630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-05-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Methane Ecotoxicology Carbon dioxide T-type zeolite Silicoaluminophosphate-34 Water Management Waste Water Technology Adsorption Aquatic Pollution Environment Water Pollution Control Environmental Chemistry Environmental Science and Engineering Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Environmental Engineering Agricultural and Biological Sciences

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