Company Filing History:
Years Active: 1992-1993
Title: Innovative Contributions of Stewart H. Presnall in Hydrocarbon Processing
Introduction
Stewart H. Presnall, an accomplished inventor based in Houston, TX, has made significant strides in the field of hydrocarbon processing. With a notable record of two patents, his work focuses on improving the quality and purity of aromatic hydrocarbon streams, contributing valuable insights and techniques to the petrochemical industry.
Latest Patents
Presnall's latest inventions include:
1. **Removal of aromatic color bodies from aromatic hydrocarbon streams** - This patent outlines a process that effectively removes aromatic color bodies, particularly those containing oxygen or sulfur, from a C.sub.8-11 aromatic hydrocarbon stream. The method involves contacting the hydrocarbon stream with a neutral attapulgite clay, significantly reducing the APHA color value from an initial range of 850-1100 to about 400 or less.
2. **Purification of unsaturated hydrocarbon streams containing styrenics** - This invention pertains to a technique for eliminating polar bodies and contaminants, including color bodies, from unsaturated hydrocarbon streams. The method suggests initial drying of the unsaturated hydrocarbon stream using a molecular sieve before contacting it with a neutral clay composed of various oxides, enhancing the purification process.
Career Highlights
Stewart H. Presnall has made his mark as a vital member of Lyondell Petrochemical Company, where he applies his expertise to enhance hydrocarbon processing methods. His inventions not only demonstrate his innovative approach but also reflect the company's commitment to advancing technology in the petrochemical sector.
Collaborations
Throughout his career, Presnall has collaborated with esteemed colleagues, including Robert J. Haynal and Beverly B. Slimp, Jr. Their combined efforts in hydrocarbon research have fostered significant advancements, leading to improved manufacturing processes and product quality within the industry.
Conclusion
Stewart H. Presnall continues to push the boundaries of innovation in hydrocarbon processing. Through his patents and collaborations, he contributes to the understanding and development of methods that enhance the purity of hydrocarbon streams, thus playing a vital role in the evolution of petrochemical engineering.