US Patent Issued to Carbon Technology Holdings on July 8 for "Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediates" (Minnesota Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,648, issued on July 8, was assigned to Carbon Technology Holdings LLC (Oakdale, Minn.).

"Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediates" was invented by Daniel J. Despen (Minneapolis), James A. Mennell (Dellwood, Minn.) and David Reamer (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "Biomass combustion processes may be controlled to intentionally generate a carbon-containing ash, from which activated carbon is produced according to the methods disclosed. Some variations provide an economically attractive process for producing an activated carbon product, the process comprising combus...