Essays about: "Oxidized Lignin"

Found 3 essays containing the words Oxidized Lignin.

  1. 1. Biobased carbon aerogels incorporated with zeolite nanoplates for carbon dioxide adsorption

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Maria Harila; [2021]
    Keywords : biobased; carbon aerogel; lignin; cellulose nanofiber; adsorption; carbon dioxide; zeolite nanoplate;

    Abstract : Over the last 100 years there has been an increase of greenhouse gases (CO2, CH4 and N2O) in the atmosphere. These gases cause several problems with the climate on Earth, such as increasing problems with extreme weather. One way to decrease the outlet of carbon dioxide is by adsorption and capture of CO2. READ MORE

  3. 2. Evaluation of Esterification as a Valorization Route for Oxidized Lignin

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Johanna Lindmark; [2017]
    Keywords : Lignin; Kraft Lignin; Esterification; Peracetic Acid; Oxidized Lignin; Muconic Acid; Vanillic Acid;

    Abstract : RISE Bioeconomy is working with the biorefinery concept. That is, for the company, to utilize all wood derivatives in effective processes, resulting in unique products. RISE Bioeconomy is investigating the possibilities of producing holocellulose through an oxidative delignification process of wood, using peracetic acid (PAA). READ MORE

  4. 3. The origin of fibre charge in chemical pulp

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Pär Lindén; [2013]
    Keywords : Hardwood kraft pulp; Eucalyptus; Uronic acid; Lignin; Total charge; Carboxylic groups; Conductometric titration; Methanolysis; Acid hydrolysis; Kappa number;

    Abstract : Chemical components in wood contain multiple anionic groups, including carboxyl groups and hydroxyl groups. During kraft cooking and bleaching, such structures are also formed, degraded or modified by the action of reactions both deliberate and unwanted. It has previously been found by Laine that anionic groups with pKa values of 3.3 and 5. READ MORE