Category Archives for Physical Solvent Processes

Rectisol Process

The German Lurgi Company and Linde A. G. developed the Rectisol® process to use methanol to sweeten natural gas. Due to the high vapor pressure of methanol this process is usually operated at temperatures of -30 to ~100°F. It has … Continue reading

18. September 2009 by Jack
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Selexol Process

Developed by Allied Chemical Company, this process is selective toward removing sulfur compounds. Levels of CO2 can be reduced by approximately 85%. This process may be used economically when there are high acid-gas partial pressures and the absence of heavy … Continue reading

18. September 2009 by Jack
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Sulfinol Process

Licensed by Shell the Sulfinol® process combines the properties of a physical and a chemical solvent. The Sulfinol® solution consists of a mixture of sulfolane (tetrahydrothiophene 1-1 dioxide), which is a physical solvent, diisopropanolamine (DIPA), and water. DIPA is a … Continue reading

18. September 2009 by Jack
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Fluor Solvent Process

This process uses propylene carbonate as a physical solvent to remove CO2 and H2S. Propylene carbonate also removes C2+ hydrocarbons, COS, SO2, CS2, and H2O from the natural gas stream. Thus, in one step the natural gas can be sweetened … Continue reading

18. September 2009 by Jack
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Physical Solvent Processes

These processes are based on the solubility of the H2S and/or CO2 within the solvent, instead of on chemical reactions between the acid gas and the solvent. Solubility depends first and foremost on partial pressure and secondarily on temperature. Higher … Continue reading

18. September 2009 by Jack
Categories: Physical Solvent Processes | Tags: | Leave a comment