Ragnar G Lundqvist

Title: Innovations of Ragnar G Lundqvist

Introduction

Ragnar G Lundqvist is a notable inventor based in Kotka, Finland. He has made significant contributions to the field of combustion technology, particularly in reducing emissions from nitrogen-containing fuels. With a total of three patents to his name, Lundqvist's work reflects a commitment to environmental sustainability and innovation.

Latest Patents

Lundqvist's latest patents include a method for reducing emissions when burning nitrogen-containing fuels. This method minimizes the amount of N₂O in flue gases discharged from a fluidized bed combustion system by adding an N₂O decomposing catalyst in a reactor stage downstream of the combustor. The catalyst is preferably a calcium-based sorbent, such as CaO or limestone, although other catalysts like NiO may also be utilized. The N₂O decomposition typically occurs without increasing the temperature of the flue gases above the 700°C to 1000°C range. In certain circumstances, a second fluidized bed can be provided to increase the temperature of the flue gases to ensure it exceeds 800°C. After N₂O decomposition, the flue gases may pass through various filtration systems to ensure environmental compliance.

Another significant patent involves a circulating fluidized bed reactor that comprises a separator with a vortex chamber for separating solid material from the flue gases. This innovative design directs flue gases in a downward direction, allowing for efficient separation and recycling of solid materials back to the reactor.

Career Highlights

Lundqvist is currently associated with A. Ahlstrom Corporation, where he continues to develop and refine technologies aimed at improving combustion processes. His work has been instrumental in advancing methods that contribute to cleaner energy production.

Collaborations

Throughout his career, Lundqvist has collaborated with notable colleagues such as Folke Engstrom and Mikko Hupa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Ragnar G Lundqvist's contributions to combustion technology and emissions reduction highlight his role as a leading inventor in his field. His innovative patents and collaborations reflect a dedication to advancing sustainable practices in energy production.