Sökning: "lime mud"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden lime mud.

  1. 1. Disintegration of Lime Mud Particles during the Causticizing Operation

    Författare :Pia Tiljander; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CaCO3; Ca OH 2; CaO; lime mud; mixing; particles; slaking; causticizing; disintegration; impeller;

    Sammanfattning : It is of essential importance that the white liquor used in processing wood chips to produce pulp in the sulphate pulp process is of high and uniform quality. The white liquor is, together with lime mud, produced in the causticizing plant where sodium carbonate is causticized with lime, slaked in green liquor. LÄS MER

  3. 2. Sintering in the Kraft Pulp Mill - Studies in the Rotary Kiln and Recovery Boiler

    Författare :Josefina Lindblom; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sintering; recovery boiler dust; recovery boiler; solid state diffusion; rotary kiln; lime mud; lime; sintering model; specific surface area;

    Sammanfattning : The conversion of black liquor to white liquor is carried out in the chemical recovery system, which is made up of several units; in two of them, i.e. the recovery boiler and the rotary kiln, sintering plays an important role. LÄS MER

  4. 3. Disintegration of lime mud particles during the causticizing operation - the influence of agitation

    Författare :Pia Tiljander; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; agglomerate breakdown; lime mud; causticizing; agitated vessel; disintegration; particle size distribution; power demand; solid suspension; mixing;

    Sammanfattning : .... LÄS MER

  5. 4. Lime Mud Reburning. Properties and Quality of the Lime Produced

    Författare :Charlotta Hanson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : It is of utmost importance that the white liquor used in the digester of a sulphate pulp mill is of high quality. The white liquor is prepared in the causticizing plant, through causticizing of the sodium carbonate in the green liquor. LÄS MER

  7. 5. Dusting in a lime kiln - Characterization of the material and unit operations

    Författare :Henric C O Dernegård; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; terminal velocity; Dusting lime kiln; fines; lime mud filter; ESP-dust; reactivity;

    Sammanfattning : The present thesis describes the background of, and gives some points of orientation for, the phenomenon of dusting in the burner zone of a lime kiln. The aim of this study is twofold: to increase knowledge of the factors that influence the degree of dusting and also to investigate the effect a dusting lime kiln has on the white liquor preparation process. LÄS MER