Soda anthraquinone pulping of oil palm male flower spikes

This study was carried out to investigate the effect of beating process to the characteristics of pulp and paper produced from oil palm oil male flower spikes (OPMFS). OPMFS pulp was prepared according to chemical Soda-AQ pulping process. 60 gsm papersheet of oil palm male flower spiked were prepared from unbeaten and unbleached OPMFS Soda-AQ pulp. All optical, physical and mechanical characteristics were investigated according to TAPPI and MS ISO standards. OPMFS pulp recorded value of 6.42 s, 353 ml, 76.5 %, 36.7 % and 9.35 for drainage time, freeness, moisture content, screened yield percentage and Kappa number respectively..

Substituting Wood with Nonwood Fibers in Papermaking: A Win-Win Solution for Bangladesh

Bangladesh is facing an acute shortage of fibrous raw materials for the production of pulp and paper. On the other hand, the demand for paper and paper products is increasing day by day. This study reviews the availability and suitability of nonwood raw materials for pulp production in Bangladesh. It shows that Bangladesh has a huge amount of unused jute fiber, which is highly suitable for papermaking in Bangladesh. Other agricultural wastes like rice straw, dhaincha, golpata fronds, cotton stalks, corn stalks, and kash are also available and may be used for some pulp production. Given the different properties of these different nonwood fibers, jute pulp can be used as a reinforcing agent with other nonwood pulps for the production of high quality paper in Bangladesh.Bangladesh, natural fibers, jute, paper making, pulp

Response to Corner Brook Pulp & Paper Tire Derived Fuel (TDF) Co-Firing Trial Project Proponent: Corner Brook Pulp & Paper Ltd. (Reg. 1539)

While acknowledging potential economic benefits for Corner Brook Pulp and Paper (CBPP) in using tire-derived fuel (TDF), we remain unconvinced of the net public and environmental health benefits of its use and are concerned with the methodology of the proposed test. We hope that this overview of our concerns can help the Department of Environment and Conservation (DEC) make an informed decision regarding the testing of TDF at CBPP. Guiding our submission is the precautionary principle, which has been adopted by all relevant parties, including the Government of Canada, the Government of Newfoundland and Labrador and CBPP. As such and in light of the issues below, it is our position that additional research is required before moving to a test trial. This can be achieved either by conducting a full Environmental Impact Statement, including component studies and additional public hearings, or by rejecting the undertaking outright

Effect of beating process to soda anthraquinone pulp of oil palm male flower spikes fibre

This study was carried out to investigate the effect of beating process to the characteristics of pulp and paper produced from oil palm oil male flower spikes (OPMFS). OPMFS pulp was prepared according to chemical Soda-AQ pulping process. 60 gsm handsheet of oil palm male flower spikes paper were prepared from OPMFS pulp with four different beating times which are O revolution, 1000 revolutions, 2000 revolutions and 3000 revolutions. All physical and mechanical characteristics were investigated according to T APPi and MS ISO standards. The results show that overall physical and mechanical characteristics of POMPS paper were influenced and enhanced by beating process between O until 3000 revolutions. This research demonstrate some potential characteristics of palm oil male flower spikes (OPMFS) paper to be investigated as a newly explored non-wood based raw material for papermaking raw material for papermaking

A New Experimental Pulp Digester Installation with Separate Steam Supply

Part I Literature Survey Up to now, few articles have been written on the subject of Experimental Pulp Digester Installations. In our searches we have been able to find information concerning only The Pulp and Paper Research Institute of Canada in Montreal, P.Q., Canada, The Chemical Pulp Experimental Department of the Central Laboratory in Finland, and a sulfite digester for research and instruction at the University of Washington at Seattle, Washington, U.S.A

The Effects of Washing between Hydrogen Peroxide Bleaching Stages on Brightness Reversion of a Spruce High-Yield Pulp

The final brightness of a bleached high-yield pulp paper product is a very important factor in determining the quality of the pulp and the product. If the brightness of this product tends to revert in time, then the quality of the product could be viewed lesser than before. Brightness reversion of high-yield pulps is the one flaw which is keeping the high-yield pulp market from really expanding in the paper industry. High-yield pulps show economical and environmental advantages with their use in the high quality printing and copy papers market. Much research has been done to find ways to reduce and control brightness reversion, however, no concrete methodology of solving the problem has been derived. The following study takes a spruce CTMP pulp from Canada and sets up an experiment to try and show whether or not washing between hydrogen peroxide bleaching stages can help reduce and control brightness reversion. Two bleaching concentration levels of 2% and 4%, with and without washing, are used as part of the bleaching sequence. The data defining the conclusions of this study are before and after ageing brightness values taken from brightness pads made by the bleached CTMP pulp. This study, based on the data obtained, concludes that a washing stage implemented into the two-stage bleaching sequence was not effective in reducing brightness reversion. The trend in the reduction of brightness reversion shows no significant reduction taking place. It is concluded that the chromophoric structure in the pulp, which aid in causing brightness reversion, are not water soluble and can not be easily washed out of the bleached CTMP pulp. Suggestions for future studies would be to use hot water washing stages and a more industry-based ageing technique

Determination of Chemical Composition of Wood Pulp Hydrolyzates by Paper Chromatography

The available literature on paper chromatography was surveyed. Special attention was given to those techniques dealing with the analysis of wood pulp hydrolyzates. Five hardwood pulp hydrolyzates were analyzed by paper chromatographic means. All hardwood pulp hydrolyzates analyzed tended to fall in a relatively narrow range of chemical composition. Glucose and xylose were found to be the main constituents with traces of mannose and galactose present in some pulp hydrolyzates

Smart enterprise for pulp & paper mills: Data processing and reconciliation

An ad-hoc data reconciliation procedure developed for the recausticizing section of a new pulp and paper industry is presented in this work. A comprehensive model was formulated to take into account different unit operation modes. It was also extended to incorporate specific knowledge of some pieces of equipment to increase redundancy, and consequently enhance estimate precision and gross error detectability. © 2002 Elsevier B.V. All rights reserved.Fil: Sanchez, Mabel Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Leung David. Visy Pulp And Paper Pty Ltd; AustraliaFil: Konecsny Helmut. Visy Pulp And Paper Pty Ltd; AustraliaFil: Bigaran Carlo. Visy Pulp And Paper Pty Ltd; AustraliaFil: Romagnoli José. University Of Sydney; Australi

Collection and dissemination of TES system information for the paper and pulp industry

A survey of U.S. and international paper and pulp mills using thermal energy storage (TES) systems as a part of their production processes was conducted to obtain sufficient operating data to conduct a benefits analysis encompassing: (1) an energy conservation assessment, (2) an economic benefits analysis, and (3) an environmental impact assessment. An information dissemination plan was then proposed to effectively present the benefits of TES to the U.S. paper and pulp industry