Sjoerd Alkema

Title: Sjoerd Alkema: Innovator in Hydrocarbon Conversion Catalysts

Introduction

Sjoerd Alkema is a notable inventor based in Delfzijl, Netherlands. He has made significant contributions to the field of hydrocarbon conversion catalysts, holding 2 patents that showcase his innovative approaches.

Latest Patents

Alkema's latest patents focus on the preparation of a hydrocarbon conversion catalyst. This process involves creating a specially made silica-alumina composition combined with metals or metal compounds from Group VIB and Group VIII. The method begins with an aqueous mixture containing aluminum sulfate, followed by the addition of alkali metal aluminate to adjust the pH. Subsequently, aluminum sulfate is added to lower the pH, and alkali metal silicate is introduced. The mixture undergoes several pH adjustments to yield a silica-alumina composition, which is then treated with an alkaline solution to produce a solid precipitate. The final composition contains between 30 to 70% wt silica and 70 to 30% wt alumina.

Career Highlights

Throughout his career, Sjoerd Alkema has worked with prominent companies, including Shell Oil Company. His expertise in catalyst preparation has positioned him as a valuable asset in the industry.

Collaborations

Alkema has collaborated with notable professionals such as David Allen Cooper and Lay Hwa Ong. These partnerships have contributed to the advancement of his research and innovations.

Conclusion

Sjoerd Alkema's work in hydrocarbon conversion catalysts exemplifies his innovative spirit and dedication to advancing chemical processes. His patents reflect a deep understanding of catalyst preparation, making him a significant figure in the field.