SWEETENING TECHNOLOGIES -A LOOK AT THE WHOLE PICTURE
Bergel, Marco Tierno, Ignacio
SWEETENING TECHNOLOGIES -A LOOK AT THE WHOLE PICTURE - 17 p.
Trabajo presentado en el 24 WGC. Disponible en CD en la biblioteca. Solicite este trabajo por email a biblio@iapg.org.ar
Nowadays, a wide variety of gas sweetening technologies is commercially available: different chemical and physical solvents, membranes, regenerable adsorbents, among others . Many have their own niche, but there are still cases where different technologies compete for a same application. Combining processes can even produce better results. To answer the question: "which method fits the project requirements best?", one should also consider the whole gas processing scheme and site conditions, and not only the sweetening technology itself. The present paper analyses sweetening technologies available to treat natural gas with a high carbon dioxide (CO2) content, considering the integration of sweetening facilities with different gas processing schemes and under different site conditions: - downstream processing of sweet gas: cryogenic processes, NGL recovery, power generation or injection into pipeline - acid gas disposal method: venting or reinjection - energy costs - inlet gas pressure and CO2 content - CO2 specification - power availability, remoteness of location Most selection guidelines focus on the sweetening process and consider it as an isolated facility. However, this paper shows the best choice should arise from a thorough analysis of the complete gas processing scheme. Throughout the following pages the factors that influence sweetening technology selection will be addressed.
SWEETENING TECHNOLOGIES -A LOOK AT THE WHOLE PICTURE - 17 p.
Trabajo presentado en el 24 WGC. Disponible en CD en la biblioteca. Solicite este trabajo por email a biblio@iapg.org.ar
Nowadays, a wide variety of gas sweetening technologies is commercially available: different chemical and physical solvents, membranes, regenerable adsorbents, among others . Many have their own niche, but there are still cases where different technologies compete for a same application. Combining processes can even produce better results. To answer the question: "which method fits the project requirements best?", one should also consider the whole gas processing scheme and site conditions, and not only the sweetening technology itself. The present paper analyses sweetening technologies available to treat natural gas with a high carbon dioxide (CO2) content, considering the integration of sweetening facilities with different gas processing schemes and under different site conditions: - downstream processing of sweet gas: cryogenic processes, NGL recovery, power generation or injection into pipeline - acid gas disposal method: venting or reinjection - energy costs - inlet gas pressure and CO2 content - CO2 specification - power availability, remoteness of location Most selection guidelines focus on the sweetening process and consider it as an isolated facility. However, this paper shows the best choice should arise from a thorough analysis of the complete gas processing scheme. Throughout the following pages the factors that influence sweetening technology selection will be addressed.
