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

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

Green Chemistry and Sustainability in Pulp and Paper Industry
Green Chemistry and Sustainability in Pulp and Paper Industry

Author: Pratima Bajpai

Publisher: Springer

Published: 2015-06-23

Total Pages: 273

ISBN-13: 3319187449

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This book features in-depth and thorough coverage of Minimum Impact Mill Technologies which can meet the environmental challenges of the pulp and paper industry and also discusses Mills and Fiberlines that encompass “State-of-the-Art” technology and management practices. The minimum impact mill does not mean "zero effluent", nor is it exclusive to one bleaching concept. It is a much bigger concept which means that significant progress must be made in the following areas: Water Management, Internal Chemical Management, Energy Management, Control and Discharge of Non-Process Elements and Removal of Hazardous Pollutants. At the moment, there is no bleached kraft pulp mill operating with zero effluent. With the rise in environmental awareness due to the lobbying by environmental organizations and with increased government regulation there is now a trend towards sustainability in the pulp and paper industry. Sustainable pulp and paper manufacturing requires a holistic view of the manufacturing process. During the last decade, there have been revolutionary technical developments in pulping, bleaching and chemical recovery technology. These developments have made it possible to further reduce loads in effluents and airborne emissions. Thus, there has been a strong progress towards minimum impact mills in the pulp and paper industry. The minimum-impact mill is a holistic manufacturing concept that encompasses environmental management systems, compliance with environmental laws and regulations and manufacturing technologies.

Environmental Management in the Pulp and Paper Industry
Environmental Management in the Pulp and Paper Industry

Author:

Publisher: UNEP/Earthprint

Published: 1996

Total Pages: 246

ISBN-13: 9280715895

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This technical report examines the environmental issues facing the pulp & paper industry & shows how these issues can be addressed. It discusses the production process, the origins of pollution & other impacts on the industry. It also recommends procedures for reducing these impacts.

Steam Generation from Biomass
Steam Generation from Biomass

Author: Esa Kari Vakkilainen

Publisher: Butterworth-Heinemann

Published: 2016-09-24

Total Pages: 324

ISBN-13: 0128044071

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Steam Generation from Biomass: Construction and Design of Large Boilers provides in-depth coverage of steam generator engineering for biomass combustion. It presents the design process and the necessary information needed for an understanding of not only the function of different components of a steam generator, but also what design choices have been made. Professor Vakkilainen explores each particular aspect of steam generator design from the point-of-view of pressure part design, mechanical design, layout design, process design, performance optimization, and cost optimization. Topics such as fuels and their emissions, steam-water circulation, auxiliary equipment, availability and reliability, measurements and control, manufacture, erection, and inspection are covered. Special attention is given to recovery boilers and fluidized bed boilers, and automated design and dimensioning calculation spreadsheets are available for download at the book's companion website. This book is intended for both design engineers and steam boiler operators, as well as those involved in plant management and equipment purchasing. - Provides a complete overview of biomass steam boilers, including processes, phenomena, and nomenclature - Presents a clear view of how biomass boilers differ from fossil fuel boilers - Covers the most used types of large-scale biomass boilers, including recovery boilers, fluidized bed boilers, and auxiliary equipment - Includes a companion website with spreadsheets, calculation examples, and automatic calculation tools for design and dimensioning