Instructor: Dr. Istadi (http://tekim.undip.ac.id/staf/istadi ) Email: istadi ...
Instructor: Dr. Istadi (http://tekim.undip.ac.id/staf/istadi ) Email: istadi ...
Instructor: Dr. Istadi (http://tekim.undip.ac.id/staf/istadi ) Email: istadi ...
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Membrane Separation<br />
� Membranes are used in natural gas processing for dehydration, fuel-gas<br />
conditioning, and bulk CO 2 removal, but presently CO 2 removal is by far<br />
the most important application<br />
� Polymeric membranes separate gases by selective permeation of gas<br />
species in these membranes.<br />
� The gas dissolves at the cont<strong>ac</strong>t surf<strong>ac</strong>e of the membrane and<br />
permeate <strong>ac</strong>ross the membrane under the partial pressure gradient<br />
<strong>ac</strong>ross the membrane wall.<br />
� The basic <strong>id</strong>ea of the process is to flow sour gas on one s<strong>id</strong>e of the<br />
membrane where only <strong>ac</strong><strong>id</strong> gases diffuse <strong>ac</strong>ross the membrane to the<br />
permeate s<strong>id</strong>e and the rest of the gas exits as sweet gas
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