LNG Project Chemical Engineering Services

LNG Liquefaction and Regasification

lng ship and terminal

Specialized LNG Experience

When it comes to regasification terminals, we are able to perform an equipment layout and rough cost estimate as part of a conceptual design package. A conceptual process design would include key features such as BOG (boil-off gas) suppression, reloading capability (if required), firewater minimization, electrical usage minimization, and tank sizing, in addition to any other process features required by the client.

Liquefaction installations are unique facilities and PROCESS is able to perform commissioning support, troubleshooting, and debottlenecking, as well as many design and operations support tasks.

For LNG receiving terminals PROCESS is able to provide items such as: major equipment lists, layout and cost estimates with semi-detailed unit costs and assembly level line items.

PROCESS is familiar with the following additional aspects of industrial process projects:

Procedures
Documentation
Layouts
Cost estimates
Design standards
Hazards identification (HAZOP)
Process safety program support (PSM and RMP)
Electrical/civil/mechanical/process/piping interfacing
Vendor interface
Cause & effects
Alarm Rationalization
SIS/SIL (for High Integrity Pressure Protection Systems)

What We Offer

In addition to specialty areas of expertise, all of our standard services and deliverables apply equally as well to LNG facilities of all types. These include:

Conceptual process design development
Front End Engineering Design packages (FEED) and FEED verification
Preliminary and final process design packages (basic engineering / schedule A / etc.)
Technical and economic process alternatives evaluations and feasibility studies
Design calculations and technical reporting
Process simulations and modeling
Mass and energy balances
Unit operation design/evaluation
Debottlenecking studies
Piping system hydraulics calculations
Process control scheme development
Control system startup, tuning, optimization
Creating Process Flow Diagrams (PFDs), Piping and Instrumentation Diagrams (P&IDs), and Process Control Diagrams (PCDs)
Process/equipment bid package preparation
Equipment specifications, and vendor technical / cost proposal evaluation and recommendations
Detail design and construction phase process oversight and support
Commissioning and startup support
Process evaluation, troubleshooting and optimization
Conducting Process Hazard Analyses (PHAs) and developing risk management plans
Independent 3rd party design review
On-site process modification/construction oversight
Commissioning and startup
Troubleshooting and optimization
Development of operating procedures
Development of process documentation

LNG Systems Experience

LNG facilities utilize a number of challenging compression and refrigeration systems. Dynamic simulation (dynamic compression evaluation programs) help ensure systems are protected and adequately designed for frequent start up and shut down under a variety of load conditions. Here are some examples of common LNG subsystems:

Process Systems

Wellheads
Pipelines
Slugcatchers
Condensate separation
Benzene removal
CO₂ Absorption
Driers
Mercury absorption
Pre-cooling
Heavy hydrocarbon columns
Liquefaction
Sub-cooling
N₂ removal
CO₂ liquefaction/re-injection
LNG storage/loading
LPG fractionation/storage
Refrigerant makeup

Utility Systems

Mono-ethylene Glycol (MEG)
Gas turbines and electrical (plus emergency power)
Flares and blowdown
Compressed air
Steam
Tempered water
Cooling water
Hot oil
Nitrogen production
Liquid Nitrogen storage

Taking Advantage of LNG Opportunities

With today's demand for clean burning, easily transportable fuels, LNG is rapidly becoming a fuel of choice for many applications. In this environment, plant operators and their engineering/construction partners must be able to design robust facilities accurately and efficiently. PROCESS has over 50 process engineers ready to assist by providing process chemical engineering expertise throughout the course of your next project.