Rune Larsson

Title: Innovations of Rune Larsson in Oxygen Delignification

Introduction

Rune Larsson is a notable inventor based in Sundsbruk, Sweden. He has made significant contributions to the field of chemical pulping, particularly through his innovative methods for oxygen delignification. His work has implications for the efficiency and sustainability of pulp production.

Latest Patents

Rune Larsson holds a patent for a method titled "Oxygen delignification of pulp in two stages with low pressure steam heating between stages." This patent discloses methods for oxygen delignification of chemical pulps, which include contacting the chemical pulp with oxygen first in an upstream reactor vessel and then in a downstream reactor vessel. The upstream reactor vessel is maintained at pressures greater than about 3 bar, while the downstream reactor vessel operates at temperatures between about 90 and 120 degrees Celsius, along with corresponding predetermined pressures. The process also involves heating the partially delignified chemical pulp between the upstream and downstream reactors by using low pressure steam.

Career Highlights

Rune Larsson is associated with Valmet Fibertech Aktiebolag, where he has applied his expertise in chemical engineering and pulp technology. His innovative approaches have contributed to advancements in the industry, particularly in improving the efficiency of pulp processing.

Collaborations

Throughout his career, Rune has collaborated with notable colleagues such as Kjell Forslund and Matts Sundin. These collaborations have fostered a productive environment for innovation and development in the field of chemical pulping.

Conclusion

Rune Larsson's contributions to the field of oxygen delignification represent a significant advancement in pulp technology. His innovative methods not only enhance the efficiency of chemical pulping but also promote sustainability in the industry.