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AR133020A1 - IMPROVEMENTS IN BIOMASS DELIGNIFICATION - Google Patents

IMPROVEMENTS IN BIOMASS DELIGNIFICATION

Info

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
Application number
ARP240101580A
Other languages
Spanish (es)
Inventor
Alejandra Enriquez
Andrew Corbett
Matthew Dewit
Sergey Talisveiber
Markus Weissenberger
Original Assignee
Sixring Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA3224381A external-priority patent/CA3224381A1/en
Application filed by Sixring Inc filed Critical Sixring Inc
Publication of AR133020A1 publication Critical patent/AR133020A1/en

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00Pulping cellulose-containing materials
    • D21C3/003Pulping cellulose-containing materials with organic compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00Pulping cellulose-containing materials
    • D21C3/02Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00Pulping cellulose-containing materials
    • D21C3/04Pulping 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.

ARP240101580A 2023-12-21 2024-06-19 IMPROVEMENTS IN BIOMASS DELIGNIFICATION AR133020A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO2025129317A1 (en) 2025-06-26
US20250207325A1 (en) 2025-06-26

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