Absorption

Authored by: A. Giovanni , García Escamilla , M. Eleazar , Silva Escamilla

Food Engineering Handbook

Print publication date:  December  2014
Online publication date:  December  2014

Print ISBN: 9781482261691
eBook ISBN: 9781482261707
Adobe ISBN:

10.1201/b17843-11

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Abstract

The increasing importance of natural gas as a source of energy poses difficult gas separation design challenges, as the streams recovered from gas fields are at high pressures (typically about 10 MPa) and can contain a high proportion of CO2 (up to 70%). In addition, as the implementation of the Kyoto protocol would require the capture of large quantities of CO2, its injection in depleted or near-depleted reservoirs for enhanced oil/gas recovery operations will become increasingly frequent. This is likely to result in natural gas streams that are even richer in CO2. Conventional separation techniques are usually restricted to low CO2 content or low-pressure feeds, and consequently there is a pressing need for an alternative process that is appropriate for such a scenario. However, absorption processes are aimed at the separation of CO2 if there are a range of applications in various fields of chemical engineering, biochemistry, environmental, metallurgy, biotechnology, and others. Therefore, this chapter also discusses some basic aspects of the absorption process and some general applications show the versatility and usefulness of this ancient and current unitary process.

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