Search for dissertations about: "Batch reactor"

Showing result 1 - 5 of 61 swedish dissertations containing the words Batch reactor.

  1. 1. Modeling and Simulation of a Multi Phase Semi-batch Reactor

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Anna Nyström; Göteborgs universitet.; Gothenburg University.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; semi-batch reactor; modeling; simulation; optimization;

    Abstract : The operation of an industrial semi-batch reactor is modeled and the flow of one reactantis investigated. In the reactor a strongly exothermic polymerization reactiontakes place followed by a slightly exothermic reaction, and the objective is to minimizethe duration of the operation of the process. READ MORE

  2. 2. On the Influence of Mixing and Scaling-Up in Semi-Batch Reaction Crystallization

    University dissertation from Stockholm : Kemiteknik

    Author : Marika Torbacke; KTH.; [2001]
    Keywords : reaction crystallization; precipitation; benzoic acid; macromixing; mesomixing; micromixing; semi-batch; loop reactor; backmixing; colour experiments; scaling-up;

    Abstract : Semi-batch crystallization experiments have been performedboth in a loop reactor and in stirred tank reactors.Hydrochloric acid was fed to a stirred solution of sodiumbenzoate, and benzoic acid immediately formed. Benzoic acid isformed in excess of the solubility making the solutionsupersaturated.The loop reactor is U-shaped. READ MORE

  3. 3. Reactor Applications and Process Monitoring for Improved Anaerobic Digestion

    University dissertation from Siv Holmqvist, Department of Biotechnology, Lund University

    Author : Tor Gunnar Jantsch; Lunds universitet.; Lund University.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pH-indicators; spectrophotometric; Biotechnology; Bioteknik; alkalinity; monitoring; UASB reactor; spent sulphite liquor; caustic extraction liquor; sulphite evaporator condensate; pulp wastewater; Anaerobic digestion; biogas;

    Abstract : Biogas, a mixture of methane and carbon dioxide, is produced by microorganisms upon degradation of organic matter in an anaerobic environment. It has been realised that by utilising anaerobic processes the organic pollutants in wastewater and organic solid waste from anthropogenic sources can be converted into a renewable source of energy. READ MORE

  4. 4. Structure, Morphology, and Catalytic Properties of CuOx/CeO2 Model Catalysts

    University dissertation from Truus Frid, Dept. of Materials Chemistry, Chemical Center, Lund University

    Author : Björn Skårman; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Synchrotron radiation; High-energy Diffraction; X-ray Absorption Fine Structure Spectroscopy.; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Chemistry; Material technology; Materiallära; materialteknik; X-ray photoelectron spectroscopy; Atomic force microscopy; Gatan Image Filter GIF ; Energy-filtered TEM; High-resolution electron microscopy; Inert gas condensation IGC ; rf Magnetron sputtering; Thermal activation; Batch reactor; Carbon monoxide oxidation; Surface sensitivity; Catalytic anisotropy; Growth; Nucleation; Topography; Roughness; Core-shell structures; Morphology; Nanostructured; Nanocomposite; Nanoparticles; Surface structure; Polycrystalline surfaces; Thin films; Copper oxide; Cerium dioxide CeO2 ; Ceria;

    Abstract : Cerium dioxide, or ceria, is a chemically stable oxygen ion conducting material with a capacity to store and release oxygen, and is therefore extensively used in combustion catalysts. The Cu-Ce-O system has been identified as one of the most active catalysts for the combustion of carbon monoxide. READ MORE

  5. 5. Impact of bioprocess desing on production of high quality proteins in Escherichia coli

    University dissertation from Stockholm : Bioteknologi

    Author : Fredrik Bylund; KTH.; [2000]
    Keywords : Escherichia coil; fed-batch; substrate gradients; scale up; scale-down reactor;

    Abstract : .... READ MORE