Process for dehydrating hydrocarbon-based gas

The invention discloses a process for dehydrating hydrocarbon-based gas. The present invention proposes to use a dry stream which is rich in C4 to C10 hydrocarbons as stripping agent for improving theregeneration of the liquid desiccant according to the invention. This dry stream rich in C4 to C10 h...

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Bibliographische Detailangaben
Hauptverfasser: CHAMBON BERNARD, PARER GUILLAUME, LANFREY PIERRE-YVES
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a process for dehydrating hydrocarbon-based gas. The present invention proposes to use a dry stream which is rich in C4 to C10 hydrocarbons as stripping agent for improving theregeneration of the liquid desiccant according to the invention. This dry stream rich in C4 to C10 hydrocarbons is extracted from the gas derived from the dehydration, for example during a step of extraction of NGL located downstream of the gas dehydration unit. The stream of stripping agent recovered at the outlet of the liquid desiccant regeneration unit may be recycled into the process of theinvention or sent to a unit external to the process according to the invention. For example, this stream of stripping agent recovered at the outlet of the regeneration unit is sent to a unit which canreceive wet condensates, such as a three-phase separation unit at the inlet of a crude gas processing plant, a condensate stabilization unit, etc. 本发明公开了将烃基气体脱水的方法。本发明提出了使用富含C4至C10烃的干物流作为汽提剂以改进根据本发明的液体干燥剂的再生。从得自脱水的气体中提取这种富含C4至