Sökning: "sodium carbonate"

Visar resultat 1 - 5 av 24 avhandlingar innehållade orden sodium carbonate.

  1. 1. Sodium Salt Scaling in Black Liquor Evaporators

    Författare :Mathias Gourdon; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sodium carbonate; black liquor; falling film evaporation; fouling; scaling; heat transfer; sodium sulfate;

    Sammanfattning : Sodium salt scaling has long been recognized as a problem in the recovery cycle of kraft pulp mills, especially in black liquor evaporators. In the black liquor evaporation, as the black liquor becomes more concentrated, the sodium salts, particularly sodium carbonate and sodium sulfate, will saturate and precipitate from the solution. LÄS MER

  2. 2. The Formation and Dissolution of Sodium Salt Scales in Black Liquor Evaporators

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Erik Karlsson; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; black liquor; falling film evaporation; sodium carbonate; evaporator cleaning; crystallization fouling; sodium sulphate; scaling; solid dissolution;

    Sammanfattning : .... LÄS MER

  3. 3. Model for activity coefficients and solubilities of Na2CO3 and Na2SO4 in high-temperature solutions

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Marta Anna Bialik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scaling; Pitzer model; activity coefficient; solubility; sodium carbonate; sodium sulfate; boiling point raise; double salt; solid solution; burkeite;

    Sammanfattning : Scaling of sodium sulfate and sodium carbonate double salts has long been recognized as a problem in the black liquor evaporation process. These salts are abundant in black liquor and often tend to precipitate on heat transfer areas, thereby significantly decreasing the heat transfer efficiency. LÄS MER

  4. 4. Carbonate Ions and Gastric Cancer

    Detta är en avhandling från Lund University: Faculty of Medicine

    Författare :Roy Ehrnström; Lund University.; Lunds universitet.; [2007]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine human and vertebrates ; ODC; COX-2; inflammation; Wistar rats; duodenogastric reflux; Medicin människa och djur ; proliferation; gastrojejunostomy; carbonate ions; Experimental gastric cancer;

    Sammanfattning : Nearly one million new cases of gastric cancer are diagnosed annually throughout the world. Even though the incidence has fallen dramatically in recent decades, this disease is still the second leading cause of cancer death in a global perspective. LÄS MER

  5. 5. Black Liquor Scaling Propensity - Experimental Investigation in a Pilot Evaporator

    Detta är en avhandling från Lund University: Faculty of Medicine

    Författare :Mathias Gourdon; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sodium carbonate; fouling; sodium sulphate; black liquor; incrustation; scaling; evaporation; falling film; evaporator; encrustation; kraft black liquor;

    Sammanfattning : Scaling in the recovery cycle of kraft pulp mills has long been recognised as a problem, especially in black liquor evaporators. Most problems are connected with the precipitation of sodium salts. LÄS MER