PSA mole sieve bed regeneration compressor. Regeneration compressors of gas drying units are integrated in FPSO ships. Periflow® Compressors ideally integrate gas drying units to regenerate molecular sieve beds (adsorption). Howden solutions are designed to handle various gas mixtures from different wells. Periflow® compressor solutions are compact, simple, versatile, and robust. Equipments can be started under process pressure and have very limited operations in its maintenance planning.