William Pleasant Nelson

Title: The Innovations of William Pleasant Nelson

Introduction

William Pleasant Nelson is a notable inventor based in Nederland, Texas. He has made significant contributions to the field of chemical engineering, particularly in the purification of propylene oxide. With a total of 2 patents to his name, Nelson's work has had a lasting impact on the industry.

Latest Patents

Nelson's latest patents include innovative methods for the purification of propylene oxide. One patent focuses on the use of paired reboilers in the purification process. This method involves the purification of an aqueous acetone-contaminated propylene oxide feedstock in an extractive distillation column. The process utilizes an oxyalkylene glycol extractive distillation agent under specific distillation conditions to maintain an acetone buffer in the column. A higher boiling distillation fraction is continuously withdrawn and partially vaporized in two reboilers, with the vapors being recycled back into the column.

Another patent details the purification of propylene oxide using a cosolvent extractive distillation. This method employs a mixture of triethylene glycol and a lower boiling cosolvent, such as 2-methyl-2,4-pentanediol, to distill propylene oxide contaminated with water, acetone, and methanol. The result is an overhead distillate fraction of essentially anhydrous propylene oxide, along with a heavier bottoms fraction containing the extractive distillation agent and contaminants.

Career Highlights

Throughout his career, Nelson has worked with prominent companies in the chemical industry. He has been associated with Texaco Chemical Company and Huntsman Specialty Chemicals Corporation. His experience in these organizations has contributed to his expertise in chemical processes and innovations.

Collaborations

Nelson has collaborated with several professionals in his field, including William A. Smith and Mark E. Taylor. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

William Pleasant Nelson's contributions to the purification of propylene oxide demonstrate his innovative spirit and technical expertise. His patents reflect a deep understanding of chemical processes and a commitment to improving industrial practices. Nelson's work continues to influence the field of chemical engineering today.