January 2012

Special Report: LNG/Gas Processing Developments

Innovative APC boosts LNG train production

APC application yields significant operability, economic benefits

Taylor, A., Apex Optimisation; Jamaludin, S., Woodside

The appropriate use of advanced process control (APC)—specifically, multivariable predictive control (MPC)—has been well established in the hydrocarbon processing industry over multiple decades, and it is widely considered an essential contributor to production maximization on liquefied natural gas (LNG) trains. If correctly applied, APC software delivers more efficient operation of existing hardware assets and essentially provides a “cruise control” for the control room operator. The Woodside-operated Karratha Gas Plant (KGP) has been progressive in the application of APC across all major process units, generating sustained benefits. Although the site is a mature APC

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