Case Study: Azbil achieves stable 45 MJ/Nm3 LNG heating value control with Datacor CHEMCAD

Azbil validates 45 MJ/Nm3 heating value control with Datacor CHEMCAD

Azbil, a major provider of automation solutions, faced the challenge of maintaining a strict 45 MJ/Nm3 heating value for city gas at an LNG terminal. Fluctuating flow rates and compositions of feed gas, including varying nitrogen content, made conventional control methods unreliable. To address this, Azbil developed a hybrid measurement system and turned to Datacor's CHEMCAD dynamic simulation software to validate the control strategy before live deployment.

Using Datacor's CHEMCAD, Azbil was able to model and validate its hybrid control system, which combined two types of calorimeters with an automatic bias correction. The simulation confirmed stable control at the target heating value even during rapid feed changes and helped identify optimal parameters. This pre-commissioning work by Datacor's solution reduced operational risk and shortened the start-up time at the terminal, with the system's reliability confirmed in actual plant operation.

Azbil