Applications Experience

Regasification

Advanced terminal unit control and advanced gas send-out control
Field-proven enhanced unit management (EUM) simplifies operator decision making during the startup and shutdown of major plant assets, thus preventing inconsistent operational conditions. Through EUM concepts such as optimized load sharing, our customers can increase the operational efficiency and life span of major plant equipment. Advanced terminal unit control (ATUC) greatly improves the stability of gas send-out by anticipating disturbances such as the switching off of a pump by an operator. Simple continuous feedback control can also respond to the disturbance but time is needed to recover and loss always occurs. Only Yokogawa offers ATUC. A VigilantPlant® library of ATUC and other engineering templates are also available.

41 regasification terminals use a Yokogawa DCS.

Applications

Integrated Automation System [CENTUM VP]

Open Rack Vaporizer

-	LNG Flow Control
-	Seawater Flow Control
-	NG Out Temperature Over-ride Function
-	Seawater Pump Control
-	Start-up/Shutdown Sequence Control

Submerged Combustion Vaporizer

-	LNG Flow Control
-	Send Out Gas Temperature Control
-	NOx Reducing Water Control
-	Combustion Air Flow Control
-	Fuel Gas Flow Control
-	Start-up/Shutdown Sequence Control

BOG Compressor

-	Compressor Start / Stop Control
-	Capacitance Control for Tank Pressure
-	Kickback Flow Control
-	Packaged PLC Functions
-	Suction Drum Level Control
-	Suction Drum Gas Temperature Control

BOG Recondenser

-	LNG Flow Control
-	Drum Level Control
-	Drum Pressure Control

HP LP SW Pump

-	Pump Start/Stop Control
-	Kickback Flow Control

Send Out Control

-	Send Out Header Pressure Control
-	Total Gas Flow Control
-	Send Out Gas Calorie Control
-	Gas Odorization Flow Control
-	Uncontrolled Gas Flow Feed-forward Function

LNG Tank

-	Tank Inlet Mixing Line Valve Control
-	Tank Pressure Control
-	Level, Temperature, and Density Monitoring
-	Packaged System Function

LNG Unloading

-	Circulation Flow Control
-	Return Gas Pressure Control
-	Unloading Lineup Control

Flare Vent System

-	Flare Pressure Control
-	Flare Firing Function
-	Vent Pressure Control

Plant Master Logic

-	Priority Control
-	Demand Auto Start/Stop Function
-	Trip Recovering Function

Safety Instrumented System [ProSafe-RS]

-	Process Safety System
-	Emergency Shutdown System
-	Fire & Gas System

Operator Training System [Omegaland]

Plant Information Management System [Exaquantum]

Asset Management System [PRM]

Flow Computer [STARDOM]

Field Sensors

-	Pressure Transmitter for Process [EJA]
-	Flow Transmitter for Process [EJA / YEWFLO]
-	Level Transmitter for Process [EJA]
-	Temperature Transmitters [YTA]
-	Coriolis Mass Flowmeter [ROTAMASS]

Analytical Products

-	Gas Chromatographs [GC1000MarkII]

3rd Party Equipment Integration

-	Uninterruptible Power System
-	Tank Gauging System
-	Berth Monitoring System
-	Unloading Arms Packaged System Function
-	On-line Gas Metering
-	Machine Monitoring System (MMS)
-	Pipeline Management System (PMS)
-	Plant Information Management System (PIMS)
-	Laboratory Management Information System (LIMS)
-	Dynamic Training Simulator (OTS)
-	Gas Management System (GMS)

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Success Stories

Shanghai LNG Company Limited, Shanghai, China
CENTUM CS 3000, ProSafe-RS, STARDOM, Exaquantum, PRM,OmegaLand Plant operator training simulator
Safety is an absolute requirement for this LNG terminal. Yokogawa Provides CENTUM CS 3000 and ProSafe-RS for China’s Third LNG Terminal.

South Hook LNG Terminal Company Ltd., Milford Haven, UKs
CENTUM CS 3000, ProSafe-RS, OmegaLand plant operator training simulator, Exaquantum
Yokogawa provides CENTUM CS 3000 and ProSafe-RS for the largest LNG terminal in Europe. Yokogawa’s OmegaLand plant operator training simulator (OTS) helps to reduce costs, optimize LNG terminal processes.

Saibu Gas Co., Ltd., Japan
CENTUM CS production control system
Scalable, flexible configuration with functions distributed to multiple controllers on a facility basis. Redundant architecture optimally designed for requirements of entire plant. General-purpose communications network used for control bus. Integrated operation environment through web-based human-machine interface (HMI).