1
Kenneth R Purdy, Charles W Gorton, James A Knight Jr: Thermochemical conversion of biomass to syngas via an entrained pyrolysis/gasification process. Georgia Tech Research Institute, Newton Hopkins & Ormsby, February 5, 1985: US04497637 (83 worldwide citation)

Biomass feedstock raw material is converted to synthesis gas by drying and sizing biomass raw material, pyrolyzing the processed biomass in intimate mixture with inert gases such as combustion products, thereby obtaining a product mixture of char, pyrolysis oil, and pyrolysis gas, and gasifying the ...


2
Mack D Bowen, Kenneth R Purdy: Process for producing highly activated carbonaceous products. American Can Company, Robert P Auber, Ira S Dorman, Stuart S Bowie, October 28, 1980: US04230602 (20 worldwide citation)

A single-pass, continuous process converts organic feedstocks into activated carbonaceous products having high surface area values. The introduction of air and steam into the bed of material at selected locations, and at controlled rates, enables the economic, dependable and convenient production of ...


3
Mack D Bowen, Kenneth R Purdy: Pyrolysis system with hot gas recirculation. American Carbons, August 14, 1984: US04465556 (16 worldwide citation)

A process and system for continuously pyrolyzing organic feedstock produces a solid carbonaceous residue of controlled volatility, in a manner that is highly energy efficient. The value of the gaseous product and of the pyrolytic oil produced are also optimized.


4
Mack D Bowen, Kenneth R Purdy: Pyrolysis system with hot gas recirculation. American Carbons, December 6, 1983: US04419185 (7 worldwide citation)

A process and system for continuously pyrolyzing organic feedstock produces a solid carbonaceous residue of controlled volatility, in a manner that is highly energy efficient. The value of the gaseous product and of the pyrolytic oil produced are also optimized.


5
Mack D Bowen, Kenneth R Purdy: Pyrolysis process utilizing pyrolytic oil recycle. American Can Company, Robert P Auber, Stuart S Bowie, Ira S Dorman, March 2, 1982: US04317703 (5 worldwide citation)

A pyrolysis process and system produces a solid residue and a clean, enriched fuel gas. In the process, the pyrolytic oil and filter cake are recycled in such a manner as to produce products of optimal value, and to minimize the need for servicing and downtime of the system. Recycling of water recov ...


6
Mack D Bowen, Kenneth R Purdy: Pyrolysis system utilizing pyrolytic oil recycle. Stuart S Bowie, Ira S Dorman, February 15, 1983: US04373995 (3 worldwide citation)

A pyrolysis process and system produces a solid residue and a clean, enriched fuel gas. In the process, the pyrolytic oil and filter cake are recycled in such a manner as to produce products of optimal value, and to minimize the need for servicing and downtime of the system. Recycling of water recov ...



Click the thumbnails below to visualize the patent trend.