SPE Projects, Facilities & Construction
Volume 5,
Number 1,
March 2010,
pp. 17-21
Summary
Carbon dioxide (CO2) emission from burning fossil fuels has been
identified as the major contributor to the increase in atmospheric
CO2 levels that can potentially lead to global climate changes.
Among main methods that are being developed for CO2 capture and
separation (CCS), CO2 adsorption is of great interest because of its
low energy consumption, low equipment cost, and ease of application. In this
work, a new simple-to-use correlation, which is easier than current available
models involving a large number of parameters and requiring more-complicated
and longer computations, is presented to predict accurately the CO2
adsorption isotherms for a molecular sieve as a function of temperature and
CO2 partial pressure. This correlation predicts the CO2
adsorption isotherms for CO2 partial pressures and temperatures up
to 120 kPa and 470 K, respectively. The promising method to develop correlation
for accurate prediction of CO2 adsorption isotherms could be
extended for CCS for the wide range of adsorbents, including various molecular
sieves, simply by readjusting the tuned coefficients. The average absolute
deviation between reported data and the proposed correlation is approximately
4%.
© 2010. Society of Petroleum Engineers
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History
- Original manuscript received:
26 February 2009
- Meeting paper published:
4 August 2009
- Revised manuscript received:
22 April 2009
- Manuscript approved:
24 April 2009
- Published online:
18 March 2010
- Version of record:
18 March 2010
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