Company Filing History:
Years Active: 1987-1991
Title: John A Ruether: Innovator in Coal Hydrogenation
Introduction
John A Ruether is a notable inventor based in McMurray, PA (US). He has made significant contributions to the field of coal hydrogenation, holding a total of 4 patents. His work focuses on innovative processes that enhance the efficiency and effectiveness of coal liquefaction.
Latest Patents
One of Ruether's latest patents is titled "Process and apparatus for coal hydrogenation." This invention outlines a method for preparing an aqueous slurry of coal that contains a dissolved liquefaction catalyst. A small quantity of oil is added to the slurry, and coal-oil agglomerates are formed through agitation at atmospheric pressure. The mixture is then drained of excess water and dried, leaving the catalyst deposited on the agglomerates. These agglomerates are subsequently fed into an extrusion device, forming a continuous ribbon of extrudate that is processed in a hydrogenation reactor at elevated pressure and temperature. The catalytic hydrogenation primarily converts the extrudate into liquid hydrocarbons, with the liquid recovered and recycled.
Another significant patent by Ruether is "Sulfur removal and comminution of carbonaceous material." This invention involves creating a slurry of coarse coal in an aqueous alkali solution, which is then heated under pressure to exceed the critical conditions of steam. The supercritical fluid penetrates the coal, causing it to swell in a thermoplastic state. A sudden release of pressure fractures the coal into finely divided particles, releasing sulfur-containing gases and minerals. The finely divided coal is then recovered for use as a clean coal product.
Career Highlights
Ruether's career is marked by his dedication to advancing coal processing technologies. His innovative approaches have contributed to cleaner and more efficient methods of utilizing coal, addressing both energy needs and environmental concerns.
Collaborations
Throughout his career, Ruether has collaborated with notable colleagues, including Theodore B Simpson and Robert P Warzinski. These partnerships have fostered a collaborative environment that has led to significant advancements in their field.
Conclusion
John A Ruether's contributions to coal hydrogenation exemplify the impact of innovative thinking in energy production. His patents reflect a commitment to improving processes that not only enhance efficiency but also promote environmental sustainability.