This inventor holds 1 USPTO granted patent. Top assignee: Exxon Research and Engineering Company. Active years: 2000.
Company Filing History:
Years Active: 2000
Title: Leonid A. Zekel: Innovator in Catalyst Recovery
Introduction
Leonid A. Zekel is a prominent inventor based in Moscow, Russia. He has made significant contributions to the field of catalyst recovery, particularly in the hydroconversion of heavy hydrocarbonaceous materials. His innovative approach has led to advancements in the efficiency and effectiveness of catalyst recovery processes.
Latest Patents
Zekel holds a patent for the "Recovery of the transition metal component of catalyst used in heavy hydroconversion." This invention relates to a process for recovering the transition metal component of catalysts utilized in the hydroconversion of heavy hydrocarbonaceous materials. The process involves catalytically desulfurizing a slurry of a transition metal catalyst and hydrocarbon, resulting in a desulfurized product and a solid residue containing the transition metal. The transition metal can be recovered by coking the residue and dividing the coker residue into two portions, which are combusted. The flue dust from the first combustion zone is conducted to the second combustion zone, where it is treated with ammonia and ammonium carbonate to obtain ammonium molybdate. Zekel's innovative method enhances the recovery of valuable transition metals from used catalysts.
Career Highlights
Leonid A. Zekel has had a distinguished career, working at Exxon Research and Engineering Company. His work has focused on improving processes related to catalyst recovery and hydroconversion technologies. His expertise in this area has made him a valuable asset to his organization and the broader scientific community.
Collaborations
Zekel has collaborated with notable colleagues, including Michael Y. Wen and Georgui S. Golovin. These collaborations have contributed to the advancement of research in catalyst recovery and have fostered innovation in the field.
Conclusion
Leonid A. Zekel's contributions to the field of catalyst recovery demonstrate his commitment to innovation and excellence. His patented processes have the potential to significantly impact the efficiency of hydroconversion technologies. Zekel's work continues to inspire advancements in the recovery of valuable materials from industrial processes.