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:
Apr. 09, 2024
Filed:
Feb. 15, 2019
Société Bioeb, Auzeville-Tolosane, FR;
Michel Delmas, Auzeville-Tolosane, FR;
Société Bioeb, Auzeville-Tolosane, FR;
Abstract
A low energy production method for producing pure and highly concentrated carbon dioxide from a renewable lignocellulosic biomass feedstock comprising the steps of i) extracting lignins and hemicelluloses by putting a solid lignocellulosic raw material in the presence of a mixture of at least water and formic acid, at atmospheric pressure under conditions of temperature between 80° C. and 110° C., ii) fractionating, the primary solid fraction and the primary liquid fraction obtained at the end of the extraction step i), iii) separating the lignins from the intermediate liquid fraction, iv) producing a synthetic gas by feeding a gasification equipment with at least part of said primary solid fraction and/or at least part of said residual liquid fraction, and v) producing carbon dioxide and water by introducing dioxygen, or dioxygen enriched air, or air in said gasification equipment.