Instructor: Dr. Istadi (http://tekim.undip.ac.id/staf/istadi ) Email: istadi ...

More documents

Recommendations

Info

SELEXOL PROCESS � Selexol is a typical application of physical absorption that uses a mixture of dimethyl ether and propylene glycols as a solvent. � A cool stream of natural gas is injected in the bottom of the absorption tower operated at 1000 psia. � The rich solvent is flashed in a high flash drum at 200 psia, where methane is flashed and recycled back to the absorber and joins the sweet gas stream. � The solvent is then flashed at atmospheric pressure and acid gases are flashed off.
Selexol… � The solvent is then stripped by steam to completely regenerate the solvent, which is recycled back to the absorber; any hydrocarbons will be condensed and any remaining acid gases will be flashed from the condenser drum. � This process is used when there is a high acid gas partial pressure and no heavy hydrocarbons. � DIPA (di-isopropanol amine) can be added to this solvent to remove CO2 down to pipeline specifications
Page 1: Instructor: Dr. Istadi (http://teki
Page 4 and 5: � Separation can be carried out a
Page 8 and 9: Selexol Process Schematic
Page 10: R k Value - Selexol � An R k valu
Page 13 and 14: HENRY’S LAW � P i = H.X i or X
Page 15 and 16: FLUOR PROCESS � This process uses
Page 17 and 18: Purisol Process Scheme
Page 19 and 20: Sulfinol/Claus Process
Page 21 and 22: Equilibrium solvent loadings
Page 23 and 24: ADSORPTION � Acid gases, as well
Page 25 and 26: CRYOGENIC FRACTIONATION � Distill
Page 27 and 28: Distillation: CO 2 from methane �
Page 29 and 30: Distillation: CO 2 from H 2S � Th
Page 31 and 32: Rate of Permeation � The rate of
Page 33 and 34: Hollow Fiber Membrane
Page 35: Gas flow paths for spiral-wound mod
Page 38 and 39: Two-stage Membrane process
Page 40 and 41: ADVANTAGES OF MEMBRANE SYSTEMS �

Instructor: Dr. Istadi (http://tekim.undip.ac.id/staf/istadi ) Email: istadi ...

Create successful ePaper yourself

Delete template?

Save as template?