Sökning: "acid washing"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden acid washing.

  1. 1. Improvement of brown stock washing : experimental and theoretical study of carbon dioxide addition

    Författare :Kourosh Khadjeh; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metal ion leaching; Brown stock washing; acid washing; co2; ph;

    Sammanfattning : .... LÄS MER

  3. 2. Precipitation and separation of lignin from kraft black liquor

    Författare :Fredrik Öhman; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; precipitation; carbon dioxide; softwood; washing; sulphuric acid; boiling point rise; black liquor; filtration; viscosity; lignin;

    Sammanfattning : .... LÄS MER

  4. 3. Sample-to-answer paper-based nucleic acid amplification tests

    Författare :Georgios Chondrogiannis; Mahiar Hamedi; Jeff Mold; Keith Pardee; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Nucleic Acid Amplification Tests (NAATs) with PCR technology to amplify DNA, are the golden standard for infectious disease diagnostics, but they require benchtop instruments and trained users to be performed. For this reason, we all had to send PCR test to centralized laboratories during the Covid-19 pandemic. LÄS MER

  5. 4. Development of the Steam Pretreatment Process for Production of Ethanol from Lignocellulosic Biomass

    Författare :Sanam Monavari; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spruce; Ethanol production; Sugarcane bagasse; SSF; Fermentation; Enzymatic hydrolysis; SO2; Steam pretreatment; Acid catalyst;

    Sammanfattning : At a time when natural petroleum resources are on the verge of depletion, and concern about climate change is increasing, the potential of lignocellulosic material for the production of bioethanol is well recognized. Ethanol can be produced from biomass through enzymatic hydrolysis and fermentation. LÄS MER

  7. 5. Influence of the Gas Phase on Pretreatment of Kraft Pulp with Nitrogen Oxides

    Författare :Dennis Rasmusson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nitric oxide; oxygen; acid hydrolysis;

    Sammanfattning : While nitric oxide (NO) is virtually inert against water-impregnated kraft pulp it participates in important reactions when reactive nitrogen compounds, e.g. NO2 and HNO2, have initiated lignin reactions. Experiments with kraft lignin (Indulin AT) showed that nitric oxide was both produced and consumed during treatment with NO2. LÄS MER