Location History:
- Princeton, NJ (US) (1989 - 1993)
- Rosewell, GA (US) (1994)
- Suwanee, GA (US) (1993 - 2001)
- Roswell, GA (US) (1994 - 2002)
Company Filing History:
9 out of 14 
6 out of 28 
5 out of 150 
Years Active: 1989-2002
Title: Rolf C. Ryham: Innovator in Pulp Production Technologies
Introduction
Rolf C. Ryham, based in Suwanee, GA, is a prominent inventor with a remarkable portfolio of 35 patents to his name. His work has significantly impacted the pulp production industry, focusing on enhancing efficiency and sustainability through innovative processes and technologies.
Latest Patents
Ryham's latest inventions include ground-breaking methods for controlling dissolved solids in pulp production. His patent illustrates how Kraft pulp with enhanced strength and bleachability can be produced while reducing the consumption of effective alkali. This is achieved by maintaining low concentrations of dissolved organic material (DOM) throughout the kraft cooking process. By extracting high DOM liquid and replacing it with lower DOM liquid, existing pulp mills can significantly reduce H factor and effective alkali consumption. Furthermore, he has also innovated heat recovery processes from spent digester cooking liquor, which optimizes steam production and heat energy recovery, helping to maximize efficiency and minimize waste in pulp mills.
Career Highlights
Throughout his career, Ryham worked with notable companies, including Ahlstromforetagen Svenska Ab and Andritz-Ahlstrom Inc. His contributions have led these companies to implement advanced techniques that improve the overall quality and sustainability of pulp production.
Collaborations
Ryham collaborated with esteemed colleagues like Jan T. Richardsen and Joseph R. Phillips. Together, they have pushed the boundaries of innovation in their field, working on projects that revolutionize traditional pulp production methodologies and introduce environmentally responsible practices.
Conclusion
Rolf C. Ryham's contributions to the field of pulp production are marked by his extensive patent portfolio and collaborative efforts with talented colleagues. His pioneering work continues to influence the industry by promoting efficient and sustainable practices through innovative technologies.