Black Liquor Gasification
Black Liquor Gasification

Author: Pratima Bajpai

Publisher: Elsevier

Published: 2014-03-06

Total Pages: 103

ISBN-13: 0081000154

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Black Liquor Gasification (BLG) is a first of its kind to guide chemical engineers, students, operators of paper plants, technocrats, and entrepreneurs on practical guidelines and a holistic techno-enviro-economic perspective applicable to their future or existing projects based on the treatment of black liquor for energy production. BLG describes the gasification process as a more efficient alternative to current processes for the conversion of black liquor biomass into energy. BLG operates largely in sync with other methods to improve pulp-making efficiency. This book explains how BLG offers a way to generate electricity and to reclaim pulping chemicals from black liquor, and why BLG would replace the Tomlinson recovery boiler for the recovery of spent chemicals and energy. - Describes the utilization of black liquor as a source of energy - Provides a detailed account of black liquor gasification processes for the production of energy and chemicals from black liquor - Provides guidelines to chemical engineers for the treatment of black liquor

Biermann's Handbook of Pulp and Paper
Biermann's Handbook of Pulp and Paper

Author: Pratima Bajpai

Publisher: Elsevier

Published: 2018-05-17

Total Pages: 670

ISBN-13: 0128142413

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Biermann's Handbook of Pulp and Paper: Raw Material and Pulp Making, Third Edition is a comprehensive reference for industry and academia covering the entire gamut of pulping technology. This book provides a thorough introduction to the entire technology of pulp manufacture; features chapters covering all aspects of pulping from wood handling at the mill site through pulping and bleaching and pulp drying. It also includes a discussion on bleaching chemicals, recovery of pulping spent liquors and regeneration of chemicals used and the manufacture of side products. The secondary fiber recovery and utilization and current advances like organosolv pulping and attempts to close the cycle in bleaching plants are also included. Hundreds of illustrations, charts, and tables help the reader grasp the concepts being presented. This book will provide professionals in the field with the most up-to-date and comprehensive information on the state-of- the-art techniques and aspects involved in pulp making. It has been updated, revised and extended. Alongside the traditional aspects of pulping and papermaking processes, this book also focuses on biotechnological methods, which is the distinguishing feature of this book. It includes wood-based products and chemicals, production of dissolving pulp, hexenuronic acid removal, alternative chemical recovery processes, forest products biorefinery. The most significant changes in the areas of raw material preparation and handling, pulping and recycled fiber have been included. A total of 11 new chapters have been added. This handbook is essential reading for all chemists and engineers in the paper and pulp industry. - Provides comprehensive coverage on all aspects of pulp making - Covers the latest science and technology in pulp making - Includes traditional and biotechnological methods, a unique feature of this book - Presents the environmental impact of pulp and papermaking industries - Sets itself apart as a valuable reference that every pulp and papermaker/engineer/chemist will find extremely useful

Pulp and Paper Industry
Pulp and Paper Industry

Author: Pratima Bajpai

Publisher: Elsevier

Published: 2016-08-26

Total Pages: 262

ISBN-13: 0128111046

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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. - 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

Management of Pulp and Paper Mill Waste
Management of Pulp and Paper Mill Waste

Author: Pratima Bajpai

Publisher: Springer

Published: 2014-11-07

Total Pages: 208

ISBN-13: 3319117882

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Pulp and paper mill industries are always associated with the disposal problem of highly contaminated sludge or bio-solids. The development of innovative systems to maximize recovery of useful materials and/or energy in a sustainable way has become necessary. The management of wastes, in particular of industrial waste, in an economically and environmentally acceptable manner is one of the most critical issues facing modern industry, mainly due to the increased difficulties in properly locating disposal works and complying with even more stringent environmental quality requirements imposed by legislation. This book presents a general Introduction on waste management in the pulp and paper industry and contains topics on the generation of waste in pulp and paper mills, waste composition, methods of sludge pre-treatment, processes and technologies for conversion of pulp and paper mill waste into valuable products, waste reduction techniques employed in the pulp and paper Industry worldwide and future trends.

Fundamentals of Thermochemical Biomass Conversion
Fundamentals of Thermochemical Biomass Conversion

Author: R.P. Overend

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 1155

ISBN-13: 9400949324

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Throughout the world many projects have been underway to investigate the conversion of renewable biomass into energy and synthetic fuels by thermo chemical methods such as combustion, pyrolysis, gasification and lique faction. While many of these represent prior art used during the early 20th century, the recent decade since the 1970s oil shock has immeasurably increased the knowledge base for such processes. Much of the new knowledge has been gained by persons who were not trained in classical wood chemistry and there have not yet been many attempts to synthesize the knowledge into a corpus of systematic information. To bring this about the International Energy Agency's Forestry Energy collaboration, the Gas Research Institute, the National Research Council of Canada and the US Department of Energy jointly sponsored a conference on the Fundamentals of Thermochemical Biomass Conversion in Estes Park, Colorado which was held on October 18-22, 1982. The Conference, which was structured around invited plenary papers and contributions from researchers, served as the basis for the papers in this volume which reflect the substantial conclusions of the Conference. During the planning for the Conference, it was realized by the editors in their capacity as Co-chairmen that a major problem in biomass research was the lack of reproducibility between reported experiments and their inter comparison on account of the heterogeneity of biomass materials. A well known wood chemist, George M.

Greenhouse Gas Control Technologies
Greenhouse Gas Control Technologies

Author: CAJ Paulson

Publisher: CSIRO PUBLISHING

Published: 2001-04-23

Total Pages: 1373

ISBN-13: 0643105727

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The control of greenhouse gas emissions continues to be a major global problem. It is inter-disciplinary, both in substance and approach, and covers technical, political and economic issues involving governments, industry and the scientific community. These proceedings contain 220 papers presented at the 5th International Conference on Greenhouse Gas Control Technologies (GHGT-5) held in August 2000 at Cairns, Queensland, Australia. The papers cover the capture of carbon dioxide, geological storage of carbon dioxide, ocean storage of carbon dioxide, storage of carbon dioxide with enhanced hydrocarbon recovery, utilisation of carbon dioxide, other greenhouse gases, fuel cells, alternative energy carriers, energy efficiency, life cycle assessments and energy modelling, economics, international and national policy, trading and accounting policy, social and community issues, and reducing emission from industry and power generation.