François Malaubier

Title: Innovations by François Malaubier

Introduction

François Malaubier is a notable inventor based in Le Plessis Robinson, France. He has made significant contributions to the field of combustion technology, holding two patents that focus on improving combustion efficiency and reducing emissions.

Latest Patents

Malaubier's latest patents include a "Method of improving combustion in a system having a circulating fluidized bed" and a "Method of decreasing nitrogen oxide emissions in a circulating fluidized bed combustion system." The first patent describes a method applicable to a combustion system of the circulating fluidized bed type, which includes a hearth and a cyclone. This system operates using fuel inserted into the bottom of the hearth, where a reducing atmosphere is created. The fuel undergoes pyrolysis, separating into a solid phase made up of grains of coke and a gaseous phase containing volatile matter. The method incorporates primary air injection, secondary air injections, and a late air injection performed at different levels to enhance combustion efficiency. The late air injection, positioned between the top of the hearth and the cyclone inlet, increases the efficiency of particle collection in the cyclone, thereby improving overall combustion efficiency.

The second patent focuses on a method to decrease nitrogen oxide emissions in a combustion installation that includes a hearth operating as a circulating fluidized bed. In this installation, a fraction of the solid particles resulting from combustion is returned to the hearth via a heat exchanger. The method involves feeding the heat exchanger with a fluidization gas that is significantly poorer in oxygen than air, effectively reducing nitrogen oxide emissions.

Career Highlights

François Malaubier is associated with Abb Alstom Power Combustion, where he applies his expertise in combustion systems. His work has contributed to advancements in cleaner and more efficient combustion technologies.

Collaborations

Malaubier has collaborated with notable colleagues such as Patrick Duche and Eugène Guilleux, enhancing the innovative efforts within his field.

Conclusion

François Malaubier's contributions to combustion technology through his patents demonstrate his commitment to improving efficiency and reducing emissions in industrial applications. His work continues to influence advancements in the field of combustion systems.