Company Filing History:
Years Active: 1977
Title: The Innovations of Robert L. Dubell
Introduction
Robert L. Dubell is a notable inventor based in Florham Park, NJ (US). He has made significant contributions to the field of coal liquefaction, holding 2 patents that focus on improving the efficiency and effectiveness of this process. His work has implications for energy production and resource management.
Latest Patents
Dubell's latest patents include innovative methods for the liquefaction of coal. The first patent describes a process where feed coal is contacted with molecular hydrogen and a hydrogen-donor solvent in a liquefaction zone. This process aims to form coal liquids and vapors, with an improvement that involves separating the effluent from the liquefaction zone into a hot vapor stream and a liquid stream. The method further details cooling the hot vapor stream to condense vaporized liquid hydrocarbons and fractionating the liquid stream to produce coal liquids in the solvent boiling range.
The second patent focuses on the production of hydrogenated coal liquids. Similar to the first, it involves contacting feed coal with molecular hydrogen and hydrogen-donor solvent. The improvement in this patent includes combining a portion of the hot vapor stream with makeup hydrogen and coal liquids, which are then passed to the solvent hydrogenation zone. This process also emphasizes the importance of discharging the remainder of the vapor stream as purge after cooling to recover vaporized hydrocarbons.
Career Highlights
Robert L. Dubell is associated with Exxon Research and Engineering Company, where he has contributed to advancements in coal liquefaction technologies. His work has been instrumental in enhancing the processes that convert coal into usable energy forms.
Collaborations
Dubell has collaborated with Robert C. Green, furthering research and development in the field of coal liquefaction. Their combined efforts have led to innovative solutions that address energy production challenges.
Conclusion
Robert L. Dubell's contributions to coal liquefaction through his patents and work at Exxon Research and Engineering Company highlight his role as a significant inventor in the energy sector. His innovations continue to influence the efficiency of energy production from coal.