The configuration of marine terminal vapor recovery equipment typically centers on four key systems-vapor collection, transport, processing, and safety control-to meet the operational demands of high flow rates, continuous processing, and stringent safety standards during ship loading and unloading.
Vapor Collection
Systems are typically equipped with sealed loading arm connections, flexible hoses, and vapor return lines to simultaneously capture volatile vapors during cargo transfer while maintaining system integrity under dynamic operating conditions.
Transport System
Explosion-proof fans or vacuum pumps are generally employed to generate a stable negative pressure environment, continuously conveying captured vapors to the processing unit; associated piping and filtration devices ensure safe and stable transport.
Vapor Processing Unit
Common configurations include condensation units, adsorption towers, or membrane separation equipment designed to separate and recover vapors. Liquid hydrocarbons are returned to the storage system, while residual gases undergo purification to reduce emission concentrations.
Safety and Control System
Explosion-proof electrical control cabinets, pressure sensors, flow monitoring devices, and emergency shutdown systems are typically installed. These enable real-time monitoring and automatic adjustment of operations, ensuring a rapid response to anomalies and maintaining the overall safe operation of the equipment.