ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,180, issued on Feb. 17, was assigned to SixRing Inc. (Calgary, Canada).
"Optimization of chemical consumption in biomass delignification" was invented by Tenzin Leksmon (Calgary, Canada), Leah Fraiberg (Calgary, Canada), Emhemmed Youssef (Calgary, Canada) and Markus Weissenberger (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process to perform a controlled exothermic delignification of biomass comprises providing a system having a first vessel and a second vessel, providing a biomass comprising lignin, hemicellulose and cellulose fibers placed into the first vessel, providing an aqueous acidic composition comprising a sulfuric ac...