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Air, 7. Waste Gases, Separation and Purification

  1. Eberhard Schmidt1,
  2. Torsten Schmidt2,
  3. Theo Pilhofer3,
  4. Helmut Krill retired4,
  5. Harald Menig5,
  6. Stephan Schirz6,
  7. Helmut Pollack7

Published Online: 15 OCT 2011

DOI: 10.1002/14356007.o02_o07

Ullmann's Encyclopedia of Industrial Chemistry

Ullmann's Encyclopedia of Industrial Chemistry

How to Cite

Schmidt, E., Schmidt, T., Pilhofer, T., Krill, H., Menig, H., Schirz, S. and Pollack, H. 2011. Air, 7. Waste Gases, Separation and Purification. Ullmann's Encyclopedia of Industrial Chemistry. .

Author Information

  1. 1

    Bergische Universität Wuppertal, Wuppertal, Germany

  2. 2

    Engelhard Process Chemicals GmbH, Hannover, Germany

  3. 3

    QVF Glastechnik GmbH, Wiesbaden, Germany

  4. 4

    Lurgi Umwelt GmbH, Frankfurt/Main, Germany

  5. 5

    Fachhochschule Frankfurt am Main, Frankfurt/Main, Germany

  6. 6

    Fachhochschule Münster, Fachbereich Versorgungstechnik, Steinfurt, Germany

  7. 7

    Gelsenkirchen, Germany

Publication History

  1. Published Online: 15 OCT 2011

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The article contains sections titled:

1.Separation of Solid and Liquid Particles from Gases
1.2.Characterization of Particle Separation
1.3.Gas Cyclones
1.3.1.Mode of Operation and Basic Designs
1.3.2.Collection Efficiency and Pressure Drop
1.3.3.Operational Characteristics
1.4.Wet Scrubbers
1.4.1.Mode of Operation and Basic Designs
1.4.2.Collection Efficiency and Pressure Drop
1.5.2.Deep-Bed Filters
1.5.3.Surface Filters
1.5.4.Granular-Bed Filters
1.6.Electrical Precipitators
1.6.1.Mode of Operation and Basic Designs
1.6.2.Design Calculations
2.Waste-Gas Purification by Thermalor Catalytic Reactions
2.1.1.Types of Reaction
2.1.2.Reaction Engineering Gas-Phase Reactions Gas-Phase Reactions, Catalytic Waste-Gas Purification
2.1.3.Process Selection and Plant Concepts
2.1.4.Operational Check
2.2.Thermal Processes for Waste-Gas Purification
2.2.1.Oxidation Processes Disposal in Furnaces Combustion in Flares Engineering in Thermal Waste-Gas Purification
2.2.2.Reduction Processes Combustion Reduction of Nitrogen Oxides
2.3.Catalytic Waste-Gas Purification Processes
2.3.1.Catalytic Reduction of Nitrogen Oxides in Flue Gases and Process Off-Gases
2.3.2.Engine Exhaust Emission Control
2.3.3.Gas-Turbine Exhaust Emission Control
2.3.4.Catalytic Purification of Claus Plant Off-Gases
2.3.5.Catalytic Oxidation in Industrial Off-Gas Streams
3.2.Basic Principles of Absorption Processes
3.3.Operating Principles of Absorption Apparatus
3.4.Absorption Apparatus
3.5.Selection of Equipment
4.2.Industrial Adsorbents
4.3.Design Criteria for Adsorbers
4.4.Adsorber Designs
4.5.Plant Concepts
4.6.Adsorption Processes
4.7.Recycling and Disposal of Spent Adsorbents
5.Biological Processes
5.1.Overview and Classification
5.2.Process Engineering Principles
5.2.1.Biological Conditions
5.2.2.Physicochemical Conditions
6.Flue-Gas Purification in the Incineration of Hazardous Waste