Pulp and Paper Industry

Chemical Recovery
 
 
Elsevier (Verlag)
  • 1. Auflage
  • |
  • erschienen am 26. August 2016
  • |
  • 260 Seiten
 
E-Book | ePUB mit Adobe DRM | Systemvoraussetzungen
E-Book | PDF mit Adobe DRM | Systemvoraussetzungen
978-0-12-811104-8 (ISBN)
 

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. It 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 causticisation and gasification processes and the progress being made in the recovery of filler, coating colour and pigments. Furthermore, it discusses the utilisation of new value streams (fuels and chemicals) from residuals and spent pulping liquor, and the environmental challenges.


  • Thorough and in depth coverage of scientific and technical advances in chemical recovery in pulp making
  • Discusses alternative chemical recovery processes, i.e. alternative causticisation and gasification processes
  • Progress being made in the recovery of filler, coating colour and pigments
  • Utilisation 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


Dr. Pratima Bajpai is currently working as a Consultant in the field of Paper and Pulp. She has a vast 36 years of experience in this field. She has worked at National Sugar Institute Kanpur (India), University of Saskatchewan (Canada), University of Western Ontario (Canada), and Thapar Center for Industrial Research and Development (India). 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 USA 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.
  • Englisch
  • San Diego
  • |
  • USA
Elsevier Science
  • 5,72 MB
978-0-12-811104-8 (9780128111048)
0128111046 (0128111046)
weitere Ausgaben werden ermittelt
  • Front Cover
  • Pulp and Paper Industry
  • Copyright Page
  • Contents
  • List of Figures
  • List of Tables
  • Preface
  • Acknowledgments
  • List of Abbreviations
  • 1 Introduction
  • 1.1 Pulp and Papermaking Processes
  • 1.1.1 Wood Yard Operation
  • 1.1.2 Pulping Processes
  • 1.1.2.1 Chemical pulping
  • 1.1.2.1.1 Kraft pulping
  • 1.1.2.1.2 Sulfite pulping
  • 1.1.2.1.3 Semichemical pulping
  • 1.1.2.2 Mechanical pulping
  • 1.1.2.3 Recycled fiber pulping
  • 1.1.2.4 Pulping of nonwood raw materials
  • 1.1.3 Chemical Recovery in Pulp Mills
  • 1.1.3.1 Sulfate pulp mill
  • 1.1.3.2 Sulfite pulp mill
  • 1.1.3.3 Neutral sulfite pulp mill
  • 1.1.4 Bleaching
  • 1.1.4.1 Chemical pulp
  • 1.1.4.2 Mechanical pulp
  • 1.1.5 Stock Preparation and Papermaking
  • 1.2 Recent Trends in Chemical Recovery
  • References
  • 2 Properties, Composition, and Analysis of Black Liquor
  • 2.1 Properties and Composition of Black Liquor
  • 2.2 Analysis of Black Liquor
  • References
  • 3 Evaporation of Black Liquor
  • 3.1 Equipment
  • 3.1.1 Rising Film Evaporators
  • 3.1.2 Falling Film Evaporators
  • 3.1.2.1 Plate-type FF evaporator
  • 3.1.2.2 Tubular-type FF evaporator
  • 3.1.3 Forced Circulation Evaporators
  • 3.2 Multiple Effect Evaporation
  • 3.3 Production of Black Liquor of High Solids
  • 3.4 Other Methods Used for Concentration of Black Liquor
  • 3.4.1 Vapor Compression Evaporation
  • 3.4.2 Blow Heat Evaporation
  • 3.4.3 Flash Steam Evaporation
  • 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
  • 4 Combustion of Black Liquor
  • 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
  • 5 Preparation of White Liquor
  • 5.1 Overview
  • 5.2 Characteristics of the Green and White Liquors
  • 5.3 Green Liquor Processing
  • 5.4 Recausticizing
  • 5.4.1 Modifications of White Liquor
  • 5.5 Modern Recausticizing
  • 5.6 Process Control and Automation
  • References
  • 6 Reburning of Lime Mud
  • 6.1 Process Overview
  • 6.2 Lime Reburning Kiln
  • 6.3 Fluidized Bed Lime Calciner
  • 6.4 Flash Calcining
  • References
  • 7 Recovery of Chemicals From Nonwood Black Liquor
  • 7.1 Desilication of Black Liquor
  • 7.2 Desilication of Green Liquor
  • 7.3 Soda Recovery
  • References
  • 8 Alternative Recovery Processes
  • 8.1 Gasification Processes
  • 8.2 MTCI Fluidized Bed Gasification
  • 8.3 Chemrec Gasification
  • 8.3.1 Atmospheric System
  • 8.3.2 Pressurized System
  • 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
  • 8.9.1 Direct Alkali Regeneration System Process
  • 8.9.2 Direct Causticization Using Titanates
  • References
  • 9 Recovery of Coating Color, Pigments, and Fillers
  • References
  • 10 Chemicals and Fuels From Residuals and Spent Pulping Liquors
  • 10.1 Lignin From Black Liquor
  • 10.2 Other Products
  • 10.3 Future Possibilities
  • References
  • 11 Environmental Issues and Challenges
  • References
  • 12 Future Perspectives
  • References
  • Index
  • Back Cover

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