LNG Solutions
Liquefied Natural Gas (LNG) enables safe, efficient transportation and storage of natural gas by reducing volume dramatically through cryogenic liquefaction. LNG projects—whether small-scale satellite stations or mid-scale terminals—require an integrated engineering approach that combines cryogenic equipment design, process safety, metering accuracy, and robust operability.
Mechasol LNG Solutions cover the full project cycle from concept and FEED support to detailed engineering, fabrication, installation, and commissioning. We deliver LNG systems as skid-mounted packages, modular units, containerized blocks, or EPC turnkey scopes, tailored to site constraints, duty profile, and regulatory requirements.
LNG Value Chain Coverage
1) LNG Receiving, Storage & Handling
Mechasol provides engineered solutions for receiving LNG from truck, ISO container, small carriers, or terminal transfer—then storing and handling it with strong emphasis on safety and boil-off management.
Typical Scope
Cryogenic storage systems (project-specific configuration)
Transfer lines, manifolds, ESD valves, and cryogenic piping supports
Tank instrumentation (level/temperature/pressure) and safety systems
Boil-Off Gas (BOG) handling interfaces (to fuel gas, compression, recondenser, or flare)
Key Design Topics
Thermal contraction and piping stress philosophy
Cold spill containment and hazardous area classification
Reliable cryogenic measurement and tank gauging (radar-based solutions are widely referenced in the industry for cryogenic storage reliability)
2) LNG Regasification & Send-Out Systems
Regasification converts LNG back to gas for injection into distribution networks, industrial users, or power generation. Industry leaders highlight regasification solutions for onshore terminals, jetties, barges, and FSRU-based systems, emphasizing efficiency and operational flexibility.
Regasification Package Elements
LNG booster pumps (as required by duty)
Vaporizers (technology selected by ambient conditions, utilities, and emissions limits)
Gas heating and superheating control
Gas filtration and conditioning prior to grid injection
Pressure regulation and metering integration
Odorization interface (when required for distribution networks)
Vaporizer Technology Options
Ambient Air Vaporizers (AAV): low OPEX, climate-dependent
Water Bath / Indirect Fired Vaporizers: stable performance in cold climates
Steam/Hot Water Vaporizers: plant-utility integrated
Submerged Combustion Vaporizers (SCV): high-capacity where emissions compliance is addressed (project dependent)
Modular / Containerized Regas
Modular regasification is increasingly used to shorten schedules and simplify execution. Several suppliers explicitly position “box-shaped” regas modules as plug-and-play solutions for terminals.
Mechasol can execute regas blocks as modular skids to reduce site welding, accelerate commissioning, and support phased expansion.
3) LNG Liquefaction (Small–Mid Scale) & Peak Shaving
Small- to mid-scale LNG liquefaction is often selected for peak shaving, industrial fuel switching, remote energy supply, and monetization of gas with limited pipeline access. Multiple technology providers emphasize modularized liquefaction to reduce execution risk and speed deployment.
Liquefaction Solution Building Blocks
Feed gas pretreatment (filtration, dehydration, CO₂/H₂S management—depending on gas quality)
Refrigeration cycle package (technology and refrigerant scheme per capacity and ambient conditions)
Cryogenic heat exchange core equipment integration (project dependent)
LNG storage interface and BOG handling
Typical Applications
Peak shaving plants supplying gas during demand spikes
Small-scale LNG for industrial customers (off-grid fuel)
Regional LNG hubs and satellite station supply chains
Engineering Depth: What We Design Into Every LNG Package
Safety & Control Philosophy
LNG facilities require robust safeguarding due to cryogenic temperatures and flammable vapor. Mechasol designs LNG systems with:
ESD zoning and shutdown valves at critical nodes (tanks, loading, vaporizer outlet, send-out)
Cold spill management and drainage philosophy
Fire & gas integration interfaces
Overpressure protection and controlled venting logic (project dependent)
Cryogenic Valves, Actuators & Tight Shutoff
Valve performance in cryogenic service is a critical reliability driver. Market leaders emphasize dedicated LNG valve portfolios and cryogenic configurations in terminals.
Mechasol packages can be configured with cryogenic valve solutions aligned with tight shutoff, low-temperature materials, and maintainability requirements.
Instrumentation, Tank Gauging & Measurement Integrity
Instrument reliability in cryogenic tanks is frequently highlighted as mission-critical, with radar level measurement positioned as robust for long-range cryogenic service.
Mechasol supports complete measurement architecture: level, temperature profiling, pressure, flow, and custody/operational metering interfaces.
Gas Quality & Network Injection Interface
Where LNG is injected into gas grids, the regas section must ensure:
Stable outlet temperature (avoid hydrate/condensation risk downstream)
Filtration and impurity control
Pressure regulation and metering compatibility
Pietro Fiorentini explicitly positions regasification support including heating, dehydration, and filtering to protect networks—this aligns with Mechasol’s integrated “conditioning + metering” approach.
Standard LNG Solution Architectures
A) Satellite LNG Regas Station (Truck-to-Grid / Truck-to-Industry)
Typical Flow: Truck unloading → LNG storage → Pumping → Vaporization → Superheating → Pressure regulation → Metering → Send-out
Use Cases: industrial fuel gas, small city gate support, remote power.
Options
Redundant vaporizers for winter duty
Dual unloading bays
Containerized control room and electrical skids
B) LNG Peak Shaving Facility
Typical Flow: Pipeline gas → Pretreatment → Liquefaction → LNG storage → Regasification during peak → Send-out
Key Requirements: high operational flexibility and fast start-up, aligned with small/peak-shaving market narrative.
C) LNG Terminal Receiving & Distribution Hub (Small–Mid Scale)
Scope Blocks
Berth/transfer interface (as applicable)
Storage and BOG management
Loading racks (truck) and/or ISO containers
Regasification for local network injection
Wärtsilä positions small and medium terminal infrastructure across storage, distribution, and regas concepts—consistent with this architecture.
Deliverables & Execution Model
Engineering Deliverables
Design Basis, HAZID/HAZOP support (as contracted)
PFD / P&ID, equipment datasheets, line list, instrument index
Plot plans/GA drawings, interface lists, tie-in schedules
Control narratives, Cause & Effect, I/O list, ESD philosophy
Fabrication & QA/QC
Material traceability, welding/NDT plans, pressure testing
Cryogenic cleanliness and preservation strategy
FAT procedures: mechanical completion + functional checks + logic simulation
Commissioning & Start-up Support
SAT and commissioning procedures
Loop checks, instrument calibration verification
Cold commissioning readiness (where applicable)
Operator training and handover documentation
Why Mechasol for LNG Solutions
Integrated packaging capability: mechanical, piping, instrumentation, electrical/automation integration under one execution framework
Modularization-first approach: skid and containerized solutions to reduce site work and accelerate schedule, consistent with industry best practice around modular LNG plants and regas modules
Reliability focus in cryogenic service: strong attention to measurement integrity and valve/actuation suitability in low-temperature environments
Value-chain completeness: from regasification terminals to storage and liquefaction integration, aligned with how major OEMs describe full value chain LNG capability