Pulp and Paper Industry

Pulp and Paper Industry

Chemical Recovery

1st Edition - August 24, 2016

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  • Author: Pratima Bajpai
  • Paperback ISBN: 9780128111031
  • eBook ISBN: 9780128111048

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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


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

  • No. of pages: 260
  • Language: English
  • Copyright: © Elsevier 2016
  • Published: August 24, 2016
  • Imprint: Elsevier
  • Paperback ISBN: 9780128111031
  • eBook ISBN: 9780128111048

About the Author

Pratima Bajpai

Dr. Pratima Bajpai is currently working as a Consultant in the field of Paper and Pulp. She has over 36 years of experience in research at the National Sugar Institute, University of Saskatchewan, the University of Western Ontario, in Canada, in addition to the Thapar Research and Industrial Development Centre, in India. She also worked as a visiting professor at the University of Waterloo, Canada, and as a visiting researcher at Kyushu University, Fukuoka, Japan. She has been named among the World’s Top 2% Scientists by Stanford University in the list published in October 2021. This is the second consecutive year that she has made it into the prestigious list. Dr. Bajpai's main areas of expertise are industrial biotechnology, pulp and paper, and environmental biotechnology. She has contributed immensely to the field of industrial biotechnology and is a recognized expert in the field. Dr. Bajpai has written several advanced level technical books on environmental and biotechnological aspects of pulp and paper which have been published by leading publishers in the United States and Europe. She has also contributed chapters to a number of books and encyclopedia, obtained 11 patents, written several technical reports, and has implemented several processes in Indian Paper mills. Dr. Bajpai is an active member of the American Society of Microbiologists and is a reviewer of many international research journals. She has also handled several Sponsored Research Projects from industry and government agencies. She is an active member of the New York Academy of Science, American Society for Microbiology, and many more.

Affiliations and Expertise

Consultant-Pulp and Paper, Kanpur, India

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