Hybrid Screw Compressor Suitable for Offshore Vapor Recovery or Flare Gas Elimination Application

摘要

Environmental issues such as global warming are getting widespread international attention. Flare Gas Elimination projects and Flare Gas Recovery systems become more interest among oil and gas industries all over the world. Screw compressors are suitable for gas compressor applications that can recover flare gas or the hydrocarbon vapor instead of sending it to a flare line for offshore platforms or FPSOs (Floating Production, Storage, & Offloading). This type of compressor system provides Zero Flare Emission. Oil-free screw compressors have been used for process gas applications since the 1970's. Oil-flooded screw compressors have been used in many process gas related applications since the 1980's. Recently, both oil-free and oil-flooded screw compressors have been expanding into the process gas compression application industry. The oil-free screw compressor is popular for the offshore applications in recent market trends, and it has been used due to several advantages, good suitability and reliability in comparison to other types of compressors. Hybrid Screw Compressors have been developed by creating the best combination of advantages in the oil-free and the oil-flooded screw compressor. Hybrid Screw Compressors have good features of compact and reliable designs, simple single skid arrangements. These features translate into benefits for the users such as lower installation costs, simple and easy start/stop operation, and suitable for long-term continuous operation.