Barber-Nichols Inc. (BNI) produces Liquefied Natural Gas (LNG) Vapor Return Compressors that can be customized for a wide variety of operating conditions at relatively low-pressure ratios (<2.5:1). These compressors transfer boil-off-gas from large storage facilities onshore back to ships offshore while they are being unloaded. The boil-off-gas fills the void being created in the ship’s tanks thereby preventing tank collapse and/or the introduction of oxygen into the system. Typical volumetric flow rates are 2,040 m3/hr (1,200 cfm), pressure deltas are 1.3 bar (4-5 psi), and temperatures are -162 °C (-260 °F). BNI’s LNG Vapor Return Compressors utilize high-speed motors which eliminate the need for a gearbox and maximize efficiency and reliability.
Barber-Nichols has the infrastructure to support the sale, installation, and maintenance of LNG Vapor Return Compressors in North America only.