Papermaking in Maine: Economic Trends from 1894 to 2000
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A Dynamic Na/S Balance of a Kraft Pulp Mill
A dynamic Na/S balance of a kraft pulp mill Modeling and simulation of a kraft pulp mill using WinGEMS En dynamisk Na/S balans av ett sulfatbruk Modellering och simulering av ett sulfatbruk i WinGEMS Per Andersson Faculty of Health, Science and Technology Department of Engineering and Chemical Science, Chemical Engineering, Karlstad University Master theisis, 30 credits Supervisors: Niklas Kvarnström (KAU), Maria Björk (Stora Enso), Rickard Wadsborn (Stora Enso) Examinat or: Lars Järnström (KAU) 2014 -01-08 Version : 2.0 Abstract The main scope of this thesis was to create a simulation model of a kraft pulp mill and produce a dynamic Na/S balance. The model was made in WinGEMS 5.3 and the method consisted of implementing a static Na/S balance from the mill and created a model that described this chemical balance. Input data from the mill was collected and implemented in the model. A number of different cases were simulated to predict the effects of different process changes over time, dynamic balances. The result from the static balance showed that the model can describes the mill case. The result from the dynamic simulation showed that the model can be used to predict the effect of process changes over shorter periods of time. Executive Summary In the kraft mill the chemical balance is of interest to minimize the production cost. Normally there is an excess of sulfur and low levels of sodium, compared to what the process requires. In the future, the pulp mill will most likely produce other products than just pulp. These new production processes will also most likely affect the sodium and sulfur balance and there is a need to be able to predict this change. -
Odorless Pulp Mill in Operation
Published May 26, 2017 Odorless Pulp Mill Odorless pulp mill in successful operation Executive Summary The sulphur in the cooking process can result in bad odor in the surroundings of a Kraft pulp mill. Together with the odor, sulphur compounds can also be an environmental problem since they are released to the atmosphere. Although emissions are becoming lower as mills are upgraded, odors have continued to be a problem for people living close to the mills, because of the very low odor threshold of sulphur compounds. Valmet has delivered a unique, practically odorless mill to CMPC Riograndese Ltda in Guaíba, Brazil. The design guidelines were to not vent odorous gases and to aim for zero smells. The gas handling system collects and controls odors from more than 100 sources and all process areas are included. Incineration of non-condensable gases is ensured through multiple, simultaneously available incineration locations. According to CMPC it can be said that the system availability is practically 100% and there is always a system ready to handle NCG and prevent gases from being emitted to the atmosphere. This paper describes the emphasis CMPC placed in the concept of the odorless mill in Guaíba and its surroundings and outlines the chosen technical solutions to achieve this target. The paper emphasizes the necessity of ensuring that odorous gases are treated also in shutdown and emergency situations, and explains how this has been achieved at the mill. © Valmet Page | 1 Published May 26, 2017 Odorless Pulp Mill Background No venting of odorous gases and a "zero smell" pulp mill. -
Product Classification and Its Implication on Competitiveness and Carbon Leakage
PRODUCT CLASSIFICATION AND ITS IMPLICATION ON COMPETITIVENESS AND CARBON LEAKAGE PULP, PAPER AND PAPERBOARD Sean Healy Katja Schumacher Climate Strategies aims to assist government in solving the collective action problem of climate change. A “not for profit” membership organisation, Companies House Number 05796323. Funders include governments and foundations. All our research is published in the public domain. www.climatestrategies.org PRODUCT CLASSIFICATION AND ITS IMPLICATION ON COMPETITIVENESS AND CARBON LEAKAGE Project Leader Katja Schumacher, Dr., Öko-Institut Contributing Authors Sean Healy Öko-Institut Publisher Publisher i.e. Climate Strategies 2011 For citation and reprints, please contact the publisher Climate Strategies PRODUCT CLASSIFICATION AND ITS IMPLICATION ON COMPETITIVENESS AND CARBON LEAKAGE Product classification and its implication on competitiveness and carbon leakage Pulp, paper and paperboard Contents 1. Executive Summary ..................................................................................................................... 1 2. Introduction ................................................................................................................................. 3 3. Overview of the pulp, paper and paperboard sectors ............................................................... 4 3.1. Description of the production process ..................................................................................... 4 3.1.1. Pulp production process ....................................................................................................... -
Construction Health and Safety Manual: Pulp and Paper Mills
PULP AND PAPER MILLS 33 PULP AND PAPER MILLS The two common forms of chemical pulping are 1) the dominant “alkaline” or “kraft” process, and Processes 2) the “acid pulping” or “sulphite” process. Acid pulping has generally declined but is still in use. The A number of processes, grouped by type as mechanical, digester liquor is a solution of sulphurous acid, H SO , chemical, and semi-chemical (or hybrid), are used in 2 3 mixed with lime (CaO) or other base (magnesium, the preparation of wood pulp. In 1990 (according to sodium, or ammonium) to form bisulphites. Lockwood’s Directory) the distribution of pulp mills in Ontario and Quebec was as follows: Mechanical processes produce the highest yield from the wood, but have high energy demands. Mechanical pulping Process Type generally incorporates thermal or chemical pre-softening Chemical Processes Semi-chemical Mechanical Total of the wood chips, resulting in lower energy requirements. Kraft Sulphite Some chemical processes include mechanical features. Ontario 94 2 15 30 The division is not distinct and is generally based on Quebec 10 8241 61 efficiency of production from dry wood. Figure 22.1: Number of pulp mills by type in Ontario and Quebec Figure 22.2 provides a flow diagram for a semi-chemical pulp mill. In chemical pulping, the wood chips are cooked, using heat and a chemical solution that depends on the type of Of the chemical processes , alkaline pulping – the kraft process being used. The lignin binder, a natural glue that or sulphite process – is the most common and is shown in holds the wood cells (fibres) together, is dissolved. -
091102 Pulp and Paper
Methodology for the free allocation of emission allowances in the EU ETS post 2012 Sector report for the pulp and paper industry November 2009 Ecofys (project leader) Fraunhofer Institute for Systems and Innovation Research Öko-Institut By order of the European Commission Study Contract: 07.0307/2008/515770/ETU/C2 Ecofys project Number: PECSNL082164 ii Disclaimer and acknowledgements Disclaimer The views expressed in this study represent only the views of the authors and not those of the European Commission. The focus of this study is on preparing a first blueprint of an allocation methodology for free allocation of emission allowances under the EU Emission Trading Scheme for the period 2013 – 2020 for installations in the pulp and paper industry. The report should be read in conjunction with the report on the project approach and general issues. This sector report has been written by Ecofys. Acknowledgements The authors would like to thank representatives from the pulp and paper industry for the in- depth discussions on possible benchmarking options for the pulp and paper industry during the execution of the project. iii Table of content 1 Introduction....................................... .............. 1 2 Production process and GHG emissions............... 5 3 Benchmark methodology .............................. ..... 10 3.1 Background on products ........................................................................................ 10 3.2 Proposal for products to be distinguished ............................................................. -
461-The Sylvester Colby Library
At Public Auction November 75, 1974 Tuo Sessions 10230 A. M. and 2:00 P. M. THE SYLYESTER COLBY LIBRARY Catalogued and Compiled by Sy Colby I2O EAST 56Ih STREET NEW YORK CITY, N.Y. IOO22 Tel.: {212} 753-6421 FOREWORD Due to the bulk and magnitude of the material in the Colby Reference Library, it was physically impossible to house or store it in our offices. Practically all literature collectors know the vari- ous items which are being offered for sale, and physical inspec' tion is hardly necessary. Serious collectors who desire specific information on particular lots should address inquiries, with self- addressed stamped envelope, to Box 27 1, Indian Rocks Beach, Florida 33r3r. No lots will be on view. Invoices for successful bidders will be prepared and sent at once and are payable immediately. All the lots will be shipped in the most expeditious manner. fn the absence of specific shipping instructions, our routing selection will be unquestioned. A mini mum packing and handling charge of fit.oo will be made on invoices. We ask successful bidders to be patient until the lots arrive. The mails ate exceedingly slow, especially due to the shortened P. O. schedule. Valuations are listed. They represent the average recent auc- tion prices rcalized. In a few cases we have estimated the value in light of our experience. Condition can be considered as satisfactory and collectible on all lots, exceptions are noted. FIRST SESSION FRIDAY. NOVEMBER 15th. 1974 10:30 A. - M. Valuations are listed. They represent the average recent auction prices realized, In a few we have estimated thc value in light of our experience. -
Paper History
Volume 14, Year 2010, Issue 1 PAPER HISTORY Journal of the International Association of Paper Historians Zeitschrift der Internationalen Arbeitsgemeinschaft der Papierhistoriker Revue de l’Association Internationale des Historiens du Papier ISSN 0250-8338 www.paperhistory.org PAPER HISTORY, Volume 14, Year 2010, Issue 1 International Association of Paper Historians Contents / Inhalt / Contenu Internationale Arbeitsgemeinschaft der Papierhistoriker Letter from the President May 2010 3 Lettre de la présidente de l’IPH – may 2010 3 Association Internationale des Historiens du Papier Brief der IPH-Präsidentin, Mai 2010 4 Important plan for the reco-very of several papermills on the Amalfi Coast 5 Pulp and Paper on Stamps 8 Le congrès à Angoulême 16 IPH Assemblée générale, Angoulême (France), 9 octobre, 2010 17 Information from delegates 20 General information 23 Orbituaries 24 Guidelines for authors 26 Editor Anna-Grethe Rischel Complete your paper historical library now! Denmark Ergänzen Sie jetzt Ihre papierhistorische Co-editors IPH-Delegates Bibliothek! Maria Del Carmen Hidalgo Brinquis Completez aujourd’hui votre bibliothèque de Spain l’Histoire du papier! 27 Dr. Claire Bustarret France Prof. Dr. Alan Crocker United Kingdom Dr. Józef Dąbrowski Poland Jos De Gelas Belgium Deadline for contributions each year 15. March and 15. September Elaine Koretsky USA Paola Munafò Italy President Anna-Grethe Rischel Dr. Henk J. Porck Präsident Stenhøjgaardsvej 57 The Netherlands President DK - 3460 Birkerød Prof. Dr. Gottfried Schweizer Denmark Austria tel + 45 45 816803 [email protected] Prof. Dr. Tomas Stohr Venezuela Secretary Dr. Sabine Schachtner Göran Wohlfahrt Sekretariat LVR-Industriemuseum Sweden Secrétaire Papiermühle Alte Dombach Lay-out Karen Borchersen D- 51465 Bergisch Gladbach The School of Conservation Germany Esplanaden 34 tel + 49 2202 936880 DK – 1263 Copenhagen K [email protected] Denmark [email protected] Treasurer Alphonse Radermecker Printer Prinfo Paritas Printcenter Kassier Hochstr. -
Wryly Noted-Books About Books John D
Against the Grain Volume 29 | Issue 6 Article 22 December 2017 Wryly Noted-Books About Books John D. Riley Gabriel Books, [email protected] Follow this and additional works at: https://docs.lib.purdue.edu/atg Part of the Library and Information Science Commons Recommended Citation Riley, John D. (2017) "Wryly Noted-Books About Books," Against the Grain: Vol. 29: Iss. 6, Article 22. DOI: https://doi.org/10.7771/2380-176X.7886 This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact [email protected] for additional information. Wryly Noted — Books About Books Column Editor: John D. Riley (Against the Grain Contributor and Owner, Gabriel Books) <[email protected]> https://www.facebook.com/Gabriel-Books-121098841238921/ Paper: Paging Through History by Mark Kurlansky. (ISBN: 978-0-393-23961-4, thanks to the development of an ingenious W. W. Norton, New York 2016.) device: a water-powered drop hammer.” An- other Fabriano invention was the wire mold for laying paper. “Fine wire mesh laid paper came his book is not only a history of paper, ample room to wander into Aztec paper making to define European paper. Another pivotal but equally, of written language, draw- or artisan one vat fine paper making in Japan. innovation in Fabriano was the watermark. Ting, and printing. It is about the cultural Another trademark of Kurlansky’s is a Now the paper maker could ‘sign’ his work.” and historical impact of paper and how it has pointed sense of humor. When some groups The smell from paper mills has always been central to our history for thousands of advocated switching to more electronic formats been pungent, due to the use of old, dirty rags years. -
Pre-Feasibility Study for a Pulpwood Using Facility Siting in the State Of
Wisconsin Wood Marketing Team July 31, 2020 Pre-Feasibility Study for a Pulpwood-Using Facility Siting in the State of Wisconsin Project Director: Donald Peterson Funded by: State of Wisconsin U.S. Forest Service Wood Innovations Table of Contents Project Team ................................................................................................................................................. 5 Acknowledgements ....................................................................................................................................... 7 Foreword ....................................................................................................................................................... 8 Executive Summary ..................................................................................................................................... 10 Chapter 1: Introduction and Overview ....................................................................................................... 12 Scope ....................................................................................................................................................... 13 Assessment Process ................................................................................................................................ 14 Identify potential pulp and wood composite panel technologies ...................................................... 15 Define pulpwood availability ............................................................................................................. -
A Historical Geography of the Paper Industry in the Wisconsin River Valley
A HISTORICAL GEOGRAPHY OF THE PAPER INDUSTRY IN THE WISCONSIN RIVER VALLEY By [Copyright 2016] Katie L. Weichelt Submitted to the graduate degree program in Geography& Atmospheric Science and the Graduate Faculty of the University of Kansas in partial fulfillment of the requirements for the degree of Doctor of Philosophy. ________________________________ Chairperson Dr. James R. Shortridge ________________________________ Dr. Jay T. Johnson ________________________________ Dr. Stephen Egbert ________________________________ Dr. Kim Warren ________________________________ Dr. Phillip J. Englehart Date Defended: April 18, 2016 The Dissertation Committee for Katie L. Weichelt certifies that this is the approved version of the following dissertation: A HISTORICAL GEOGRAPHY OF THE PAPER INDUSTRY IN THE WISCONSIN RIVER VALLEY ________________________________ Chairperson Dr. James R. Shortridge Date approved: April 18, 2016 ii Abstract The paper industry, which has played a vital social, economic, and cultural role throughout the Wisconsin River valley, has been under pressure in recent decades. Technology has lowered demand for paper and Asian producers are now competing with North American mills. As a result, many mills throughout the valley have been closed or purchased by nonlocal corporations. Such economic disruption is not new to this region. Indeed, paper manufacture itself emerged when local businessmen diversified their investments following the decline of the timber industry. New technology in the late nineteenth century enabled paper to be made from wood pulp, rather than rags. The area’s scrub trees, bypassed by earlier loggers, produced quality pulp, and the river provided a reliable power source for new factories. By the early decades of the twentieth century, a chain of paper mills dotted the banks of the Wisconsin River. -
Print This Article
PEER-REVIEWED ARTICLE bioresources.com The Influence of Different Types of Bisulfite Cooking Liquors on Pine Wood Components Raghu Deshpande,a,* Lars Sundvall,b Hans Grundberg,c and Ulf Germgård a In this laboratory study, the initial phase of a single-stage sodium bisulfite cook was observed and analyzed. The experiments were carried out using either a lab- or a mill-prepared cooking acid, and the cooking temperature used in these experiments was 154 °C. Investigated parameters were the chemical consumption, the pH profile, and the pulp yield with respect to cellulose, lignin, glucomannan, xylan, and finally extractives. Cooking was extended down to approximately 60% pulp yield and the pulp composition during the cook, with respect to carbohydrates and lignin, was summarized in a kinetic model. The mill-prepared cooking acid had a higher COD (Chemical Oxygen Demand) and TOC (Total Organic Carbon) content than the lab-prepared cooking acid and this influenced the pH and the formation of thiosulfate during the cook. It was found that the presence of dissolved carbohydrates and lignin in the bisulfite cooking liquor affected the extractives removal and the thiosulfate formation. Keywords: Bisulfite pulping; Cellulose; Extractives; Glucomannan; Kinetics; Lignin; Pine; Sulfate; Thiosulfate; Xylan Contact information: a: Karlstad University, SE-65188 Karlstad, Sweden; b: MoRe Research, SE-89122 Örnsköldsvik, Sweden; c: Domsjö Fabriker, SE-89186 Örnsköldsvik, Sweden; *Corresponding author: [email protected] INTRODUCTION The sulfite pulping process was developed by B. C. Tilgman in 1866-1867, using calcium as the base to manufacture paper pulp from wood (Rydholm 1965; Sixta 2006). The first sulfite mill was started in Bergvik, Sweden in 1874, using magnesium as the base (Sjöström 1993). -
Changes in Print Paper During the 19Th Century
Purdue University Purdue e-Pubs Charleston Library Conference Changes in Print Paper During the 19th Century AJ Valente Paper Antiquities, [email protected] Follow this and additional works at: https://docs.lib.purdue.edu/charleston An indexed, print copy of the Proceedings is also available for purchase at: http://www.thepress.purdue.edu/series/charleston. You may also be interested in the new series, Charleston Insights in Library, Archival, and Information Sciences. Find out more at: http://www.thepress.purdue.edu/series/charleston-insights-library-archival- and-information-sciences. AJ Valente, "Changes in Print Paper During the 19th Century" (2010). Proceedings of the Charleston Library Conference. http://dx.doi.org/10.5703/1288284314836 This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact [email protected] for additional information. CHANGES IN PRINT PAPER DURING THE 19TH CENTURY AJ Valente, ([email protected]), President, Paper Antiquities When the first paper mill in America, the Rittenhouse Mill, was built, Western European nations and city-states had been making paper from linen rags for nearly five hundred years. In a poem written about the Rittenhouse Mill in 1696 by John Holme it is said, “Kind friend, when they old shift is rent, Let it to the paper mill be sent.” Today we look back and can’t remember a time when paper wasn’t made from wood-pulp. Seems that somewhere along the way everything changed, and in that respect the 19th Century holds a unique place in history. The basic kinds of paper made during the 1800s were rag, straw, manila, and wood pulp.