Journal article Open Access

The effect of using different acids to catalyze the prehydrolysis stage on the organosolv delignification of beech wood in two-stage process

Qusay . Ibrahim; Pablo .J. Arauzo; Andrea Kruse


JSON-LD (schema.org) Export

{
  "description": "<p>In this study, beechwood was fractionated in lab-scale rector by one-stage and two-stage processes. The two-stage processes of the prehydrolysis with no catalyst (only water) and catalyst (sulfuric, phosphoric, oxalic acids), and the subsequent effect on the organosolv process were studied. A one-stage organosolv delignification of beech wood (control experiment) was conducted at 155 &ordm;C for 160 min in 1:1 ethanol/water mixture with 100 mM sulfuric acid, while the two-stage processes were conducted starting from the uncatalyzed and catalyzed (20-200 mM) prehydrolysis of beech wood at 175 &ordm;C for 60 min. The results indicate that sulfuric acid enhanced the removal of xylan from beechwood during the prehydrolysis stage. Moreover, the effectiveness of the delignification of beech wood using a one-stage process is more than the two-stage, as well as the enzymatic digestibility of the pulp, which was better than those of the two-stage processes. However, the enzymatic digestibility results of the pulp obtained after sulfuric acid-catalyzed prehydrolysis followed by organosolv delignification shown better results than the other two-stage processes. Additionally, high klason content, low sugar content, low M<sub>w</sub>, and high phenolic hydroxyl groups of lignin was recovered by a one-stage organosolv delignification.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "University of Hohenheim", 
      "@type": "Person", 
      "name": "Qusay . Ibrahim"
    }, 
    {
      "affiliation": "University of Hohenheim", 
      "@type": "Person", 
      "name": "Pablo .J. Arauzo"
    }, 
    {
      "affiliation": "University of Hohenheim", 
      "@type": "Person", 
      "name": "Andrea Kruse"
    }
  ], 
  "headline": "The effect of using different acids to catalyze the prehydrolysis stage on the organosolv delignification of beech wood in two-stage process", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2020-02-28", 
  "url": "https://zenodo.org/record/3764754", 
  "keywords": [
    "organosolv", 
    "prehydrolysis", 
    "pretreatment,", 
    "enzymatic hydrolysis", 
    "lignin"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1016/j.renene.2020.02.111", 
  "@id": "https://doi.org/10.1016/j.renene.2020.02.111", 
  "@type": "ScholarlyArticle", 
  "name": "The effect of using different acids to catalyze the prehydrolysis stage on the organosolv delignification of beech wood in two-stage process"
}
21
7
views
downloads
Views 21
Downloads 7
Data volume 2.9 MB
Unique views 15
Unique downloads 5

Share

Cite as