AR133020A1 - IMPROVEMENTS IN BIOMASS DELIGNIFICATION - Google Patents
IMPROVEMENTS IN BIOMASS DELIGNIFICATIONInfo
- Publication number
- AR133020A1 AR133020A1 ARP240101580A ARP240101580A AR133020A1 AR 133020 A1 AR133020 A1 AR 133020A1 AR P240101580 A ARP240101580 A AR P240101580A AR P240101580 A ARP240101580 A AR P240101580A AR 133020 A1 AR133020 A1 AR 133020A1
- Authority
- AR
- Argentina
- Prior art keywords
- hemicellulose
- lignin
- lignocellulosic biomass
- remaining
- recovering
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/003—Pulping cellulose-containing materials with organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Un método para eliminar sustancialmente los elementos constituyentes de una biomasa lignocelulósica en flujos separados, en el que dicho método comprende los siguientes pasos: Paso 1: proporcionar dicha biomasa lignocelulósica que comprende: celulosa; hemicelulosa; y lignina; Paso 2: exponer la biomasa lignocelulósica a un paso de deslignificación realizado a una temperatura inferior a 55ºC utilizando un ácido de Caro modificado y generando una mezcla de reacción, dicho paso de deslignificación se lleva a cabo durante un primer período de tiempo suficiente como para disolver una cantidad suficiente de lignina presente en dicha biomasa lignocelulósica para obtener un número k para los sólidos restantes inferior a 10; Paso 4: recuperar, de la mezcla de reacción, un flujo líquido que comprende elementos constituyentes de lignina despolimerizada y dichos sólidos restantes comprenden celulosa y hemicelulosa y que tienen un contenido de lignina inferior al 1,5% de lignina; Paso 5: exponer dichos sólidos restantes a una composición cáustica a baja temperatura (preferiblemente por debajo de los 60ºC) para generar una mezcla cáustica que comprende dicha composición cáustica, hemicelulosa y celulosa; Paso 6: dejar tiempo suficiente para que al menos el 85% de la hemicelulosa restante presente se disuelva por efecto de dicha composición cáustica, y donde la exposición a dicha composición cáustica produce una porción final de sólidos; Paso 6: opcionalmente, separar dicha hemicelulosa disuelta de dicha porción de sólidos final; y Paso 7: opcionalmente, recuperar dicha porción sólida final; y Paso 8: recuperar dicha hemicelulosa a partir de dicha hemicelulosa disuelta, en donde dicha hemicelulosa recuperada constituye más del 85% de la hemicelulosa presente en dicha porción de sólidos restante y lo está principalmente en forma de polisacárido.A method for substantially removing constituent elements of a lignocellulosic biomass in separate streams, said method comprising the following steps: Step 1: providing said lignocellulosic biomass comprising: cellulose; hemicellulose; and lignin; Step 2: exposing the lignocellulosic biomass to a delignification step performed at a temperature of less than 55° C. using a modified Caro's acid and generating a reaction mixture, said delignification step being carried out for a first period of time sufficient to dissolve a sufficient amount of lignin present in said lignocellulosic biomass to obtain a k number for the remaining solids of less than 10; Step 4: recovering, from the reaction mixture, a liquid stream comprising constituent elements of depolymerized lignin and said remaining solids comprising cellulose and hemicellulose and having a lignin content of less than 1.5% lignin; Step 5: exposing said remaining solids to a low temperature (preferably below 60°C) caustic composition to generate a caustic mixture comprising said caustic composition, hemicellulose, and cellulose; Step 6: allowing sufficient time for at least 85% of the remaining hemicellulose present to be dissolved by said caustic composition, and wherein exposure to said caustic composition produces a final solids portion; Step 6: optionally, separating said dissolved hemicellulose from said final solids portion; and Step 7: optionally, recovering said final solids portion; and Step 8: recovering said hemicellulose from said dissolved hemicellulose, wherein said recovered hemicellulose constitutes more than 85% of the hemicellulose present in said remaining solids portion and is primarily in the form of polysaccharide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3224381A CA3224381A1 (en) | 2023-12-21 | Improvements in biomass delignification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR133020A1 true AR133020A1 (en) | 2025-08-20 |
Family
ID=96096658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP240101580A AR133020A1 (en) | 2023-12-21 | 2024-06-19 | IMPROVEMENTS IN BIOMASS DELIGNIFICATION |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250207325A1 (en) |
| AR (1) | AR133020A1 (en) |
| WO (1) | WO2025129317A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20115711A7 (en) * | 2011-07-01 | 2013-01-02 | Metsae Fibre Oy | Method for removing hemicelluloses from pulp |
| CA3074194A1 (en) * | 2020-02-28 | 2021-08-28 | Fluid Energy Group Ltd. | Modified sulfuric acid and uses thereof |
| CA3074198A1 (en) * | 2020-02-28 | 2021-08-28 | Fluid Energy Group Ltd. | Modified methanesulfonic acid and uses thereof |
| CA3074199A1 (en) * | 2020-02-28 | 2021-08-28 | Fluid Energy Group Ltd. | Modified sulfuric acid and uses thereof |
| CA3110357A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Modified sulfuric acid and uses thereof |
| CA3110360A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Modified sulfuric acid and uses thereof |
| CA3110389A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Modified sulfuric acid and uses thereof |
| CA3110388A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Arylsulfonic acid - modified sulfuric acide and uses thereof |
| CA3110367A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Modified sulfuric acid and uses thereof |
| CA3110364A1 (en) * | 2021-02-25 | 2022-08-25 | Sixring Inc. | Modified sulfuric acid and uses thereof |
-
2024
- 2024-06-19 AR ARP240101580A patent/AR133020A1/en unknown
- 2024-06-21 US US18/750,511 patent/US20250207325A1/en active Pending
- 2024-06-21 WO PCT/CA2024/050844 patent/WO2025129317A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025129317A1 (en) | 2025-06-26 |
| US20250207325A1 (en) | 2025-06-26 |
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