LNG and LPG Carrier Loading Operations

Overview

LNG and LPG carriers transport liquefied gases from export terminals to markets around the world, and the loading and discharge of these ships are complex operations at the interface between terminal and vessel. Cargoes are stored at very low temperatures or under pressure, and loading involves cool-down, vapour return, boil-off gas management and tight coordination between ship and shore. Errors can lead to cryogenic spills, overpressure, rollover, vapour releases, delays and costly demurrage claims. Well-trained terminal and marine staff are essential to keep these high-value operations safe, efficient and on schedule.

This course provides a practical understanding of LNG and LPG carrier loading and discharge operations. Participants learn the properties of LNG and LPG, the main carrier types and containment systems, and the design of marine terminals, jetties, loading arms and vapour return systems. The course covers ship-shore compatibility, mooring, the ship-shore safety checklist, cool-down and gassing-up, loading rates and sequences, custody transfer measurement and boil-off gas handling. It also explains emergency shutdown and release couplings, cargo hazards, rollover and stratification, cargo documentation, and coordination with ship crews, port authorities and cargo surveyors.

Objectives

• Explain the properties and hazards of LNG and LPG cargoes
• Describe carrier types, cargo containment systems and ship equipment
• Understand marine terminal design, loading arms and vapour return systems
• Apply ship-shore compatibility, mooring and safety checklist requirements
• Plan cool-down, loading sequences, rates and boil-off gas management
• Perform custody transfer measurement and cargo documentation correctly
• Respond to emergencies and coordinate with ships, ports and surveyors

Who should attend

Training methodology

The course combines explanation of cargo properties and terminal systems with real loading plans, ship-shore checklists, custody transfer reports and incident case studies. Participants plan a cool-down and loading sequence, calculate loading times and boil-off gas quantities, review ship-shore compatibility data and complete a ship-shore safety checklist for an example vessel. Custody transfer calculations are carried out from tank gauging and gas composition data. Videos show loading arm operation and emergency release tests. Case studies of cargo incidents are analysed in groups, and each day ends with a short quiz.

Programme outline

Dates and fees

Certificate

Frequently asked questions