Turning Flared Gas into Energy via Flared Gas Recovery System (FGRS)

Gas flaring remains a significant environmental and economic challenge in the oil and gas industry. Billions of cubic feet of gas are flared annually, resulting in greenhouse gas emissions, energy loss, and environmental negative impact. In response to global efforts to reduce emissions and enhance energy efficiency, Flare Gas Recovery Systems (FGRS) have emerged as a viable solution for capturing and reusing flare gases. Among various compression technologies, the Liquid Ring Compressor (LRC) stands out for its ability to handle wet, not processed, and variable-composition gases typical of flaring streams. This paper presents a comprehensive overview of flare gas recovery using liquid ring compressor. It begins with an examination of the sources and impacts of flare gas emissions, followed by an in-depth discussion of the LRC's operating principles, system design, and configuration. Additionally, the paper addresses operational considerations such as seal liquid management, and system reliability. By integrating technical design with regulatory context, this paper highlights the LRC-based FGRS as a sustainable and robust solution to reduce routine flaring in oil and gas operations.