High Pressure CO2 Removal with the FLUOR Solvent Physical Solvent Process

• Autores: J. Mak, D. Nielsen, D. Schulte, C. Frey
• Localización: Ingeniería química, ISSN 0210-2064, Nº. 434, 2006 (Ejemplar dedicado a: Achema'06), págs. 79-90
• Idioma: inglés
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• Resumen

  • This paper reviews high CO2 partial pressure gas treating considerations and applications of the Fluor Solvent process to these gas streams. The discussion includes a recent plant survey of two Fluor Solvent plants - a natural gas treating plant operating at about 700 psig (48.3 barg) and a syngas treating plant operating at about 2,000 psig (138 barg). Performance data from these two plants are reviewed and several new Fluor Solvent Process configurations (patent pending) are also discussed. These new configurations are improvements over earlier designs in that they can process a wider range of gas streams with high CO2 content. One of the new configurations can be used for the production of liquid CO2 for enhanced oil recovery.

    1.Introduction As high quality natural gas resources are depleted, it is becoming necessary to produce less desirable natural gas reserves. In some cases, the acid gas concentration in these reserves is very high and the economics of producing pipeline quality gas are marginal. As the need to develop these marginal reserves increases, there is a demand for novel processes to economically remove acid gases. Physical solvents have an advantage over chemical solvents as their treating capacity increases with increasing acid gas partial pressure. The Fluor Solvent Process, based on the physical solvent propylene carbonate, has been proven in treating high CO2 content gases in both natural gas and syngas applications.