The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Aug. 14, 2020
Elvis O. Ebikade, Washington, DC (US);
Eric R. Gottlieb, Newark, DE (US);
Robert M. O'dea, Newark, DE (US);
Thomas H. Epps, Iii, Bear, DE (US);
Dionisios Vlachos, Newark, DE (US);
Elvis O. Ebikade, Washington, DC (US);
Eric R. Gottlieb, Newark, DE (US);
Robert M. O'Dea, Newark, DE (US);
Thomas H. Epps, Iii, Bear, DE (US);
Dionisios Vlachos, Newark, DE (US);
University Of Delaware, Newark, DE (US);
Abstract
Disclosed herein are systems and methods of depolymerizing a lignin component of a lignin-containing material. The method comprising contacting the lignin-containing material with a solvent and optionally a catalyst at a temperature in the range of 180-300° C. and at a maximum operating pressure of less than 10 barG during the depolymerization of the lignin component of the material and collecting at least one volatile stream comprising one or more depolymerized lignin products. In an embodiment, the step of contacting is carried out in a reactive distillation reactor, and the step of collecting comprises concurrently collecting at least one volatile stream via distillation apparatus connected to the reactive distillation reactor, at least one of the one or more depolymerized lignin products comprises a substituted phenol having the following general formula: (I) wherein Ris H, methyl, ethyl, n-propyl, propenyl, or allyl, and Rand Rare independently selected from H or methoxy group.