Kraft Pulp and Paper Mill Utilization Options for Grey-stage Wood
Kraft Pulp and Paper Mill Utilization Options for Grey-stage Wood

Author: Theodore Radiotis

Publisher:

Published: 2008

Total Pages: 88

ISBN-13:

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This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. It examines lodgepole pine (Pinus contorta) that has been attacked and killed by mountain pine beetle (Dendroctonus ponderosae) and which goes through several stages (red and grey) following the attack. Wood moisture content decreases rapidly, typically to below fibre saturation point. As a consequence, the wood responds differently in both the chipping and pulping processes. Research on beetle-attacked wood has shown that many physical properties are not affected; wever wood-water interactions have not been studied in detail. In the two parts of this study, the sorption behaviour of beetle-killed wood in comparison to green wood is examined, and the influence of utilization of dry beetle-killed wood on kraft pulping operations and pulp quality is explored.--Includes text from Government of Canada publications site and from document.

Pilot Mechanical Pulping Assessment of Dry Blue-stained and Grey-stage Wood Chips from Beetle-killed Lodgepole Pine
Pilot Mechanical Pulping Assessment of Dry Blue-stained and Grey-stage Wood Chips from Beetle-killed Lodgepole Pine

Author: Thomas Qiuxiong Hu

Publisher:

Published: 2009

Total Pages: 68

ISBN-13:

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"The overall goal of this project is to determine the level of dry blue-stained wood chips and the level of grey-stage wood chips that can be economically utilized by BC mechanical pulp producers. The target objectives are two-fold: (1) to determine the maximum levels of dead, dry blue-stained and grey-stage lodgepole pine that can be economically utilized in BC mechanical pulp mills without detrimentally affecting processing and product quality; and (2) to evaluate the economic feasibility of presteaming, chemical impregnation pretreatment and refiner operation options for dry blue-stained and grey-stage lodgepole pine wood chip utilization."--Document.

Evaluation of In-woods Chipping Options for Beetle-killed Lodgepole Pine Wood
Evaluation of In-woods Chipping Options for Beetle-killed Lodgepole Pine Wood

Author: Paul Alexandre Bicho

Publisher:

Published: 2006

Total Pages: 44

ISBN-13:

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This report presents the impact of using a portable in-woods chipper to chip red- and grey-stage mountain pine beetle-infested lodgepole pine (Pinus contorta) from the perspective of chip quality, pulping (thermomechanical and kraft) and pulp quality. In addition, the costs of chipping were determined and compared.

Separation Technologies for the Industries of the Future
Separation Technologies for the Industries of the Future

Author: Panel on Separation Technology for Industrial Reuse and Recycling

Publisher: National Academies Press

Published: 1999-01-22

Total Pages: 128

ISBN-13: 0309592828

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Separation processes—or processes that use physical, chemical, or electrical forces to isolate or concentrate selected constituents of a mixture—are essential to the chemical, petroleum refining, and materials processing industries. In this volume, an expert panel reviews the separation process needs of seven industries and identifies technologies that hold promise for meeting these needs, as well as key technologies that could enable separations. In addition, the book recommends criteria for the selection of separations research projects for the Department of Energy's Office of Industrial Technology.

Pulping the South
Pulping the South

Author: Ricardo Carriere

Publisher: Zed Books

Published: 1996-08-15

Total Pages: 290

ISBN-13: 9781856494380

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The expansion of the pulp and paper industry is one of the most important causes of land and water conflicts in the South. This book examines the threat to livelihood, soil and biodiversity generated by large-scale pulpwood plantations in the South.