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Separation of CO2/CH4 using carbon molecualr sieve (CMS) at low and high pressure

Separation of CO2/CH4 using carbon molecualr sieve (CMS) at low and high pressure

Category
Academic article
Abstract
Separation of CO2 from CH4-rich streams is an important separation for upgrading biogas and natural gas. The main difference between these two sources of methane is the pressure at which they are available. In order to design an adsorption process without extrapolating data, it is necessary to measure the behaviour of the adsorbent in the current conditions.

In this work, adsorption properties of CH4 and CO2 on a commercial carbon molecular sieve (CMS) material are reported. Adsorption equilibrium of pure gases at 298 and 343 K were measured until 70 bar for CH4 and 30 bar for CO2. In order to determine the performance of the adsorbent using a real mixture, binary breakthrough curves (10% CO2–90% CH4) were measured at 314 K at pressures from 5 to 70 bar. A mathematical model was used to interpret the data obtained.
Client
  • Research Council of Norway (RCN) / 193816
  • Research Council of Norway (RCN) / 233818
Language
English
Author(s)
Affiliation
  • SINTEF Industry
  • SINTEF Industry / Process Technology
Year
Published in
Chemical Engineering Science (CES)
ISSN
0009-2509
Publisher
Elsevier
Volume
164
Page(s)
148 - 157