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Pulp and Paper Industry

Chemical Recovery

  • 1st Edition - August 24, 2016
  • Latest edition
  • Author: Pratima Bajpai
  • Language: English

Pulp and Paper Industry: Chemical Recovery examines the scientific and technical advances that have been made in chemical recovery, including the very latest developme… Read more

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Description

Pulp and Paper Industry: Chemical Recovery examines the scientific and technical advances that have been made in chemical recovery, including the very latest developments. It looks at general aspects of the chemical recovery process and its significance, black liquor evaporation, black liquor combustion, white liquor preparation, and lime reburning.

The book also describes the technologies for chemical recovery of nonwood black liquor, as well as direct alkali regeneration systems in small pulp mills. In addition, it includes a discussion of alternative chemical recovery processes, i.e. alternative causticization and gasification processes, and the progress being made in the recovery of filler, coating color, and pigments. Furthermore, it discusses the utilization of new value streams (fuels and chemicals) from residuals and spent pulping liquor, including related environmental challenges.

Key features

  • Offers thorough and in-depth coverage of scientific and technical advances in chemical recovery in pulp making
  • Discusses alternative chemical recovery processes, i.e., alternative causticization and gasification processes
  • Covers the progress being made in the recovery of filler, coating color, and pigments
  • Examines utilization of new value streams (fuels and chemicals) from residuals and spent pulping liquor
  • Discusses environmental challenges (air emissions, mill closure)
  • Presents ways in which the economics, energy efficiency, and environmental protection associated with the recovery process can be improved

Readership

Pulp and Paper Technologists/ Engineers, Senior Paper Scientists, Applied Chemists, Chemical Engineers, Professionals, Academics, Analysts, Consultants

Table of contents

  • List of Figures
  • List of Tables
  • Preface
  • Acknowledgments
  • List of Abbreviations
  • Chapter 1. Introduction
    • Abstract
    • 1.1 Pulp and Papermaking Processes
    • 1.2 Recent Trends in Chemical Recovery
    • References
  • Chapter 2. Properties, Composition, and Analysis of Black Liquor
    • Abstract
    • 2.1 Properties and Composition of Black Liquor
    • 2.2 Analysis of Black Liquor
    • References
  • Chapter 3. Evaporation of Black Liquor
    • Abstract
    • 3.1 Equipment
    • 3.2 Multiple Effect Evaporation
    • 3.3 Production of Black Liquor of High Solids
    • 3.4 Other Methods Used for Concentration of Black Liquor
    • 3.5 Modern Evaporation
    • 3.6 Scaling and Scale Control
    • 3.7 Evaporator Troubleshooting
    • 3.8 Instrumentation and Process Control
    • 3.9 Other Operations
    • References
  • Chapter 4. Combustion of Black Liquor
    • Abstract
    • 4.1 Recovery Boiler
    • 4.2 Selection Criteria
    • 4.3 Black Liquor Droplet Combustion
    • 4.4 Combustion Behavior of Different Black Liquors
    • 4.5 Operation of Recovery Boiler
    • 4.6 Selection of the Main Parameters for Recovery Boiler
    • 4.7 Nonprocess Elements in the Recovery Cycle
    • 4.8 Safety
    • 4.9 Modern Recovery Practices
    • 4.10 Future of Recovery Boiler Technology
    • References
  • Chapter 5. Preparation of White Liquor
    • Abstract
    • 5.1 Overview
    • 5.2 Characteristics of the Green and White Liquors
    • 5.3 Green Liquor Processing
    • 5.4 Recausticizing
    • 5.5 Modern Recausticizing
    • 5.6 Process Control and Automation
    • References
  • Chapter 6. Reburning of Lime Mud
    • Abstract
    • 6.1 Process Overview
    • 6.2 Lime Reburning Kiln
    • 6.3 Fluidized Bed Lime Calciner
    • 6.4 Flash Calcining
    • References
  • Chapter 7. Recovery of Chemicals From Nonwood Black Liquor
    • Abstract
    • 7.1 Desilication of Black Liquor
    • 7.2 Desilication of Green Liquor
    • 7.3 Soda Recovery
    • References
  • Chapter 8. Alternative Recovery Processes
    • Abstract
    • 8.1 Gasification Processes
    • 8.2 MTCI Fluidized Bed Gasification
    • 8.3 Chemrec Gasification
    • 8.4 Catalytic Hydrothermal Gasification of Black Liquor
    • 8.5 Environmental Impact
    • 8.6 Causticization Processes
    • 8.7 Autocausticization
    • 8.8 Borate Autocausticization With Black Liquor Gasification
    • 8.9 Direct Causticization
    • References
  • Chapter 9. Recovery of Coating Color, Pigments, and Fillers
    • Abstract
    • References
  • Chapter 10. Chemicals and Fuels From Residuals and Spent Pulping Liquors
    • Abstract
    • 10.1 Lignin From Black Liquor
    • 10.2 Other Products
    • 10.3 Future Possibilities
    • References
  • Chapter 11. Environmental Issues and Challenges
    • Abstract
    • References
  • Chapter 12. Future Perspectives
    • Abstract
    • References
  • Index

Product details

  • Edition: 1
  • Latest edition
  • Published: August 26, 2016
  • Language: English

About the author

PB

Pratima Bajpai

Dr. Pratima Bajpai is a Pulp and Paper Consultant with a 40-year research career spanning institutions like the National Sugar Institute, University of Saskatchewan, and Thapar Research Centre. She has held visiting positions at the University of Waterloo and Kyushu University. Recognized among the World's Top 2% Scientists by Stanford University for five consecutive years, her expertise includes industrial biotechnology, environmental biotechnology, and pulp and paper. She has authored several advanced technical books and contributed to numerous publications, making significant contributions to her field. Dr. Bajpai is a leading expert in industrial biotechnology and environmental aspects of pulp and paper industries.
Affiliations and expertise
Consultant-Pulp and Paper, Kanpur, India

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