Introduction
Staff moving into liquefied natural gas (LNG) projects often understand only their own link of the chain, so feed gas specifications, boil-off losses, cargo scheduling and regasification send-out are planned in isolation and the cryogenic hazards are underestimated. This Core Concept course follows LNG from feed gas pre-treatment and liquefaction through full containment storage, carrier loading and shipping to regasification terminals and FSRUs, then covers LNG safety, contract and pricing basics and small-scale LNG. Participants walk through each facility type and produce an LNG Value Chain Map and Hazard Register for their own role.
Course Objectives
- Explain LNG composition, cryogenic properties, volume reduction and heating value and relate them to feed gas specifications
- Describe the pre-treatment units that remove acid gas, water, mercury and heavy hydrocarbons ahead of the cold section
- Compare the published liquefaction processes and trace refrigerant cycles and main cryogenic heat exchanger duty on a process flow diagram
- Track boil-off gas generation in storage tanks, jetty lines and carrier cargo tanks and select handling routes such as compression, fuel use and reliquefaction
- Identify rapid phase transition, cryogenic embrittlement and vapour cloud hazards and match them to the safeguards found on LNG terminals and ships
- Interpret the main terms of LNG sale and purchase agreements and price indexation and compile an LNG Value Chain Map and Hazard Register
Target Audience
- Process and mechanical engineers joining liquefaction, storage or regasification projects
- Operations and maintenance staff responsible for LNG tank farms, jetties and vaporiser trains
- Commercial and shipping staff who schedule cargoes, nominate volumes and administer LNG contracts
- Planning and supply chain staff who forecast send-out and coordinate carriers with terminals
- HSE advisers responsible for cryogenic hazard assessment at gas terminals
- Project and asset integrity staff moving from pipeline gas or oil into LNG assets
Course Outline
Day 1: LNG Properties and the Value Chain from Gas Field to Market
- LNG Value Chain Block Diagram: Feed Gas, Liquefaction, Shipping and Regasification
- Methane-Rich Composition, Minus 162 Degree Boiling Point and the 1/600 Volume Ratio
- LNG Density, Higher Heating Value and Wobbe Index in Cargo Energy Accounting
- Flammable Range of 5 to 15 Percent and Why Liquid LNG Does Not Ignite
- Participant Role Baseline: Mapping Each Delegate's Link in the LNG Chain
Day 2: Feed Gas Pre-Treatment and Liquefaction Process Technology
- Acid Gas Removal Unit with Amine Solvent for CO2 and H2S Specification
- Molecular Sieve Dehydration and Mercury Guard Bed Removal
- Heavy Hydrocarbon and NGL Removal Ahead of the Scrub Column
- AP-C3MR and AP-X Propane Pre-Cooled Mixed Refrigerant Trains
- Cascade, Shell DMR, Linde MFC and Single Mixed Refrigerant Process Comparison
Day 3: LNG Storage, Boil-Off Gas and Carrier Loading
- Full Containment Tank Design: Prestressed Concrete Outer Wall and Nickel Steel Inner Tank
- Tank Rollover, Stratification Monitoring and Auto-Refrigeration Behaviour
- Boil-Off Gas Compressors, Recondensers and Fuel Gas Routing
- Jetty Loading Arms, Vapour Return Line and Ship-Shore Link Procedure
- Moss Spherical, GTT Membrane Mark III and NO96 and SPB Cargo Containment Systems
Day 4: Regasification, FSRUs and LNG Hazard Safeguards
- Open Rack, Submerged Combustion and Intermediate Fluid Vaporiser Selection
- FSRU Configuration: Onboard Regasification Skid, Risers and Send-Out Pipeline
- Rapid Phase Transition on LNG Spills to Water and Cryogenic Embrittlement of Carbon Steel
- Vapour Cloud Dispersion, Pool Fire Radiation and Spill Impoundment Sizing
- Emergency Shutdown, Gas and Cold Spill Detection and Cryogenic PPE Requirements
Day 5: LNG Commercial Basics, Small-Scale LNG and the Value Chain Walkthrough
- LNG Sale and Purchase Agreement Terms: Take-or-Pay, FOB and DES Delivery
- Oil-Indexed Versus Hub-Indexed Pricing with Henry Hub Linked Cargo Examples
- Small-Scale LNG: Peak-Shaving Plants, Truck Loading and LNG as Marine and Road Fuel
- Walkthrough Exercise: Liquefaction Train, Tank Farm, Jetty and FSRU Layouts
- LNG Value Chain Map and Hazard Register Drafting and Peer Review
Skills You Will Gain
- LNG Property Interpretation
- Gas Pre-Treatment Specification
- Liquefaction Process Recognition
- Boil-Off Gas Management
- Cargo Containment Awareness
- Regasification System Selection
- Cryogenic Hazard Identification
- LNG Contract Literacy
Why Attend This Course
- Leave with an LNG Value Chain Map and Hazard Register built from walkthroughs of liquefaction, storage, jetty and FSRU layouts
- Talk with process, shipping and commercial colleagues using the same terms for boil-off, send-out, cargo energy and delivery point
- Spot rapid phase transition, cold spill and vapour cloud scenarios before they appear in a design review or a site visit
- Compare LNG practice with engineers, operators and traders from producing, shipping and importing organisations
Conclusion
Working safely and profitably in LNG depends on seeing how each link of the chain affects the next: feed gas quality sets liquefaction duty, tank heat leak sets boil-off, cargo containment sets shipping losses and vaporiser choice sets send-out. The course moves from LNG properties and the value chain, through pre-treatment and liquefaction technology, storage, boil-off and loading, to regasification, FSRUs and hazard safeguards. The final day adds contract, pricing and small-scale basics and produces an LNG Value Chain Map and Hazard Register for each participant.
