公开(公告)号：US20220170206A1

公开(公告)日：2022-06-02

申请号：US17405026

申请日：2021-08-18

Applicant: SixRing Inc.

Inventor： Clay PURDY ,  Markus WEISSENBERGER ,  Markus PAGELS ,  Kyle G WYNNYK ,  Matthew DEWIT ,  Andrew C CORBETT

IPC: D21C3/04 ,  D21C3/00 ,  D21C9/16

Abstract: Method of delignification of plant material, said method comprising: providing said plant material comprising cellulose fibres and lignin; exposing said plant material requiring to a composition comprising: an acid; a capping agent; and a peroxide; for a period of time sufficient to remove substantially all (at least 80%) of the lignin present on said plant material. Also disclosed are compositions to accomplish such delignification and processes using such.

公开(公告)号：US12252844B2

公开(公告)日：2025-03-18

申请号：US17405026

申请日：2021-08-18

Applicant: SixRing Inc.

Inventor： Clay Purdy ,  Markus Weissenberger ,  Markus Pagels ,  Kyle G Wynnyk ,  Matthew Dewit ,  Andrew M Corbett

IPC: D21C3/04 ,  D21C3/00 ,  D21C9/16

Abstract: Method of delignification of plant material, said method comprising: providing said plant material comprising cellulose fibres and lignin; exposing said plant material requiring to a composition comprising: an acid; a capping agent; and a peroxide; for a period of time sufficient to remove substantially all (at least 80%) of the lignin present on said plant material. Also disclosed are compositions to accomplish such delignification and processes using such.

公开(公告)号：US20240368834A1

公开(公告)日：2024-11-07

申请号：US18773189

申请日：2024-07-15

Applicant: SIXRING INC.

Inventor： Clay PURDY ,  Markus WEISSENBERGER ,  Markus PAGELS ,  Kyle G. WYNNYK ,  Matthew DEWIT ,  Andrew M. CORBETT

IPC: D21C3/04 ,  C01B15/04 ,  C09K3/00

Abstract: Compositions comprising an acid; a modifying agent selected from the group consisting of sulfamic acid, imidazole, N-alkylimidazoles, taurine, taurine derivatives, taurine-related compounds, alkylsulfonic acids, arylsulfonic acids, triethanolamine and combinations thereof; a metal salt; and a peroxide.

公开(公告)号：US12123138B2

公开(公告)日：2024-10-22

申请号：US17407477

申请日：2021-08-20

Applicant: SixRing Inc.

Inventor： Clay Purdy ,  Markus Weissenberger ,  Markus Pagels ,  Kyle G Wynnyk

IPC: D21C3/06 ,  D21C1/04 ,  D21C3/00 ,  D21C3/04 ,  D21C9/16

CPC classification number: D21C3/06 ,  D21C1/04 ,  D21C3/003 ,  D21C3/04 ,  D21C9/16

Abstract: An aqueous composition comprising: sulfuric acid; a modifying agent comprising an arylsulfonic acid; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.

公开(公告)号：US20240295073A1

公开(公告)日：2024-09-05

申请号：US18662570

申请日：2024-05-13

Applicant: SixRing Inc.

Inventor： Clay PURDY ,  Markus WEISSENBERGER ,  Markus PAGELS ,  Kyle G WYNNYK

IPC: D21C3/00

CPC classification number: D21C3/003

Abstract: One-pot processes to separate lignin from a lignocellulosic feedstock include providing a vessel; providing a lignocellulosic feedstock; providing an aqueous composition comprising an acid, a modifying agent comprising a substituted aromatic compound, and a peroxide; and exposing the lignocellulosic feedstock to the composition in the vessel for a period of time sufficient to remove at least 80% of the lignin present in the lignocellulosic feedstock.

公开(公告)号：US20240294961A1

公开(公告)日：2024-09-05

申请号：US18460258

申请日：2023-09-01

Applicant: SixRing Inc.

Inventor： Alejandra ENRIQUEZ ,  Julie GREER ,  Markus WEISSENBERGER ,  Alexandria OSTASZEWSKI

IPC: C12P19/12 ,  C12N9/42

CPC classification number: C12P19/12 ,  C12N9/244 ,  C12N9/2445 ,  C12Y302/01006 ,  C12Y302/01021

Abstract: A process to hydrolyze cellulose into cellobiose comprises providing a reaction vessel and providing an inoculum of a bacteria or fungus capable of expressing one or more endo or exo-β-glucanase into reaction vessel. The bacterium or fungus is exposed to a source of cellulose having a kappa number of less than 10 and a hemicellulose content of less than 15% in an aqueous medium of pH between 5 and 9 at a temperature ranging from 20° C. to 40° C. for a period of time ranging from 1 to 30 days. The cellobiose is exposed to a bacterium or fungi or yeast, or combination which converts cellobiose to glucose or ethanol.

公开(公告)号：US20240294960A1

公开(公告)日：2024-09-05

申请号：US18460219

申请日：2023-09-01

Applicant: SixRing Inc.

Inventor： Alejandra ENRIQUEZ ,  Julie GREER ,  Markus WEISSENBERGER ,  Alexandra OSTASZEWSKI

IPC: C12P19/02

CPC classification number: C12P19/02 ,  C12Y302/01004 ,  C12Y302/01021

Abstract: A process to obtain glucose from a pretreated lignocellulosic biomass comprises providing a lignocellulosic biomass and contacting said lignocellulosic biomass to a modified Caro's acid composition for a period of time necessary to remove more than 98.5% of the lignin present in the lignocellulosic biomass and thus obtaining a solid stream and a liquid stream. The solid stream is exposed to an enzyme blend to produce a hydrolysate comprising sugars obtained from the hydrolysis of cellulose and hemicellulose. Optionally, the hydrolysate may be fermented to produce value-added products.

公开(公告)号：US12065780B2

公开(公告)日：2024-08-20

申请号：US17407528

申请日：2021-08-20

Applicant: SixRing Inc.

Inventor： Clay Purdy ,  Markus Weissenberger ,  Markus Pagels ,  Kyle G Wynnyk

IPC: D21C3/04 ,  D21C3/00 ,  D21C9/16

CPC classification number: D21C3/04 ,  D21C3/003 ,  D21C9/163

Abstract: An aqueous composition comprising: sulfuric acid; a modifying agent comprising a carbonyl-containing nitrogenous base compound; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.

公开(公告)号：US11905171B2

公开(公告)日：2024-02-20

申请号：US17407401

申请日：2021-08-20

Applicant: SixRing Inc.

Inventor： Clay Purdy ,  Markus Weissenberger ,  Markus Pagels ,  Kyle G Wynnyk

IPC: C01B17/69 ,  D21C3/04 ,  C08H8/00

CPC classification number: C01B17/69 ,  C08H8/00 ,  D21C3/045

Abstract: An aqueous composition comprising: sulfuric acid; a modifying agent comprising an amine group; and a peroxide. The amine group can include triethanolamine, diethanolamine, monoethanolamine, pyrrolidine, ethylenediamine, diethylamine, triethylamine, DIPEA, cyclohexylamine, piperidine, morpholine, DBU, benzylamine, and combinations thereof. The composition is capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place. The composition can be used in processing and depolymerization of cellulose from a plant source.

公开(公告)号：US20240052375A1

公开(公告)日：2024-02-15

申请号：US18447863

申请日：2023-08-10

Applicant: SixRing Inc.

Inventor： Corynne O'FARRELL ,  Julie GREER ,  Alexandra OSTASZEWSKI ,  Markus WEISSENBERGER ,  Alejandra ENRIQUEZ

IPC: C12P5/02 ,  C12M1/107

CPC classification number: C12P5/023 ,  C12M21/04

Abstract: A process to increase the amount of methane produced from a bio-digester comprises providing a digester to receive a feed and to capture a biogas composition resulting from bio-digestion. Organic material is added to the digester along with at least one inoculum capable of converting a portion of the organic material into methane under anaerobic conditions. A biomass is provided that is substantially free of lignin in an amount that ranges between 0.1 to 5% w/w of the total feed, the biomass further having another organic material. The biomass is added to the digester. Sufficient time is allowed for the digester to degrade the biomass and the organic material to yield a biogas composition that includes methane. Optionally, the biomass that is substantially free of lignin is added in an amount that ranges between 0.1 to 5% w/w of the total feed of the biomass having the other organic material.