Joseph B McLean

Title: Innovations of Joseph B McLean

Introduction

Joseph B McLean is a notable inventor based in South Somerville, NJ, with a significant contribution to the field of coal hydrogenation processes. He holds five patents that showcase his innovative approaches to enhancing the efficiency of coal processing and hydrocarbon production. His work has implications for energy production and environmental sustainability.

Latest Patents

One of McLean's latest patents is the "Catalytic two-stage coal hydrogenation process using extinction recycle." This process involves a catalytic two-stage hydrogenation and liquefaction of coal, utilizing a selective extinction recycle of heavy liquid fractions. The method aims to produce increased yields of low-boiling hydrocarbon liquids and gas products. The process slurries particulate coal with a process-derived liquid solvent and operates under controlled conditions to promote liquefaction and hydrogenation. The first stage reactor maintains a temperature of 710°F to 800°F and a hydrogen partial pressure of 1000 to 4000 psig. The partially hydrogenated material is then passed to a second stage for further reactions.

Another significant patent by McLean is the "Two-stage co-processing of coal/oil feedstocks." This process focuses on the catalytic co-processing of coal and heavy petroleum hydrocarbon liquid fractions. It aims to achieve increased yields of low-boiling hydrocarbon liquids and gas products while minimizing undesirable residuum and unconverted materials. The first stage operates at relatively mild conditions, while the second stage employs more severe conditions to enhance the hydrogenation and hydroconversion reactions.

Career Highlights

Joseph B McLean has made substantial contributions to the field of energy production through his innovative patents. His work at HRI, Inc. has positioned him as a key figure in the development of advanced coal processing technologies. His inventions reflect a commitment to improving the efficiency and sustainability of hydrocarbon production.

Collaborations

Throughout his career, McLean has collaborated with notable colleagues, including Alfred G Comolli and James B MacArthur. These collaborations have likely contributed to the advancement of his innovative processes and technologies.

Conclusion

Joseph B McLean's contributions to the field of coal hydrogenation and hydrocarbon production are significant. His innovative patents demonstrate a commitment to enhancing energy efficiency and sustainability. His work continues to influence the industry and pave the way for future advancements.