John H Hollenbach

Title: Innovations and Contributions of John H Hollenbach

Introduction

John H Hollenbach is a notable inventor based in Vienna, VA (US), recognized for his contributions to the field of chemical engineering. He holds 2 patents that showcase his innovative approaches to membrane technology and hydrocarbon separation processes.

Latest Patents

Hollenbach's latest patents include a membrane and process for the recovery of acid. This invention utilizes a cross-linked polyvinyl sulfate, copolymer of polyvinyl sulfate and polyvinyl alcohol, or Nafion® membrane to recover sulfuric acid from a feed mixture predominantly composed of acid and water. The process operates under reverse osmosis conditions, enriching sulfuric acid in the retentate stream while removing water in the permeate stream. Another significant patent is for a process that separates a heavy oil feedstream into improved products. This invention focuses on utilizing an ultrafiltration process designed to maximize the quality of both permeate and retentate product streams. The process includes configuration and operational parameters aimed at maximizing permeate yield and selectivity.

Career Highlights

Throughout his career, Hollenbach has worked with prominent companies, including ExxonMobil Research and Engineering Company. His experience in these organizations has contributed to his expertise in developing innovative solutions in chemical processes.

Collaborations

Hollenbach has collaborated with notable professionals in his field, including Kirk C Nadler and Daniel Paul Leta. These collaborations have likely enriched his work and contributed to the advancements in his patented technologies.

Conclusion

John H Hollenbach's contributions to membrane technology and hydrocarbon separation processes highlight his innovative spirit and dedication to advancing chemical engineering. His patents reflect significant advancements that can impact various industrial applications.