Essays about: "non-process elements"

Found 3 essays containing the words non-process elements.

  1. 1. The Effect of Calcium on Delignification in Kraft Cooking of Eucalyptus

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Eashwara Raju Senthilkumar; [2019]
    Keywords : Delignification; Carbohydrates; Lignin; Yield; Calcium; Delignifiering; Kolhydrater; Lignin; Utbyte; Kalcium;

    Abstract : Delignifiering under sulfat koket innefattar både kemisk nedbrytning och fysisk upplösning av lignin, för vilket närvaron av oorganiska salter, oorganiska anjoner samt oorganiska katjoner (sammantaget benämnda som "Non-process elements", NPEs på engelska) kan ha inverkan på delignifieringens hastighet. Tidigare studier har funnit att ved med högt kalciuminnehåll är svårdelignifierad och att kalcium har potentiell inverkan på ligninlöslighet och kappatal. READ MORE

  3. 2. Mass and energy balances over the lime kiln in a kraft pulp mill

    University essay from Institutionen för informationsteknologi

    Author : Per Lundqvist; [2009]
    Keywords : ;

    Abstract : This report describes the construction of a model that calculates mass- and energy balances over the lime kiln in a kraft pulp mill. The model was implemented in FORTRAN to serve as the lime kiln block in the WinGEMS simulation software. READ MORE

  4. 3. Control model for compressible cake filtration of green liquor in cassette filter

    University essay from KTH/Reglerteknik

    Author : Kajsa Bornefelt; [2006]
    Keywords : ;

    Abstract : In the closed chemical recovery cycle in the sulphate pulp mill it is important to remove non-process elements. This is done by clarification of the green liquor, either in clarifiers or in filters. This project focuses on a cassette filter developed by Kvaerner Pulping AB. READ MORE