Session: 04-22 Combustion - Emissions II

Submission Number: 176506

Improvement to Raman Analysis for Extending its Adoption for GT Control for Fuel Flexibility Applications 

Achieving fuel flexibility in gas turbines is a significant challenge for modern GT applications, as the composition of fuel gas becomes increasingly diverse and complex.

Effective and rapid monitoring of fuel gas properties is crucial for controlling GT combustion, especially for Dry Low Emission (DLE) machines.

The use of Raman analysis is one of the most innovative approaches in fuel gas characterization, and its application is starting to spread as an alternative to traditional gas analysis techniques, in order to improve the performance on GT Fuel Flexibility applications. However, for the mentioned purpose the applicability limits of such technology have not been assessed in detail yet.

Based on the extensive experience of BH, gained in recent years over several projects requiring fuel flexibility, this paper has the aim to investigate the expected fuel gas compositions observable in real applications, defining the measuring range required for each species contained in the fuel gas mixture.

In a second part of the paper, BH is going to evaluate the expected accuracy of the Raman technology, for each species of interest, taking into account any potential contribution to the uncertainty of the measurement, including cross-interference effects given by the complexity of the fuel gas composition.

Finally, the paper addresses a key aspect of gas analysis concerning the tightening restrictions on plant CH4 and hydrocarbon emissions, quantifying the benefits of the Raman analysis in reducing emissions compared with the conventional gas analyzer technology.

Presenting Author: Valerio Giuseppe Traettino Baker Hughes

Presenting Author Biography: Valerio Giuseppe Traettino is a Lead Engineer at Baker Hughes, specializing in Instrumentation. He holds a Master’s Degree in Mechanical Engineering for Energy and the Environment, from the Università degli Studi di Napoli Federico II.
With extensive experience in designing integrated gas analysis solutions for process and emission monitoring, he contributes his expertise to the instrumentation design of plants featuring aeroderivative gas turbines.
He applies advanced analytical technologies to optimize processes, fostering more sustainable operations.

Authors:

Daniele Possanzini Baker Hughes
Valerio Giuseppe Traettino Baker Hughes
Frerik Van Beijnum Hobré Instruments B.V.
Maura Pasquotti Baker Hughes