Potential, Prices and Resources of Raw Wood Assortments for the Pulp and Paper Industry in Central Europe

2016 ◽  
Vol 688 ◽  
pp. 210-217 ◽  
Author(s):  
Miloš Gejdoš ◽  
Jozef Suchomel
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Economic Crisis ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Market Conditions ◽  
The Czech Republic ◽  
Price Trends

In the last decade the prices of wood in Slovakia were affected by the global economic crisis, rising intensity and extent of incidental felling and specific market conditions in SR. This paper analyses the shares of selected raw wood assortments supplies for the pulp and paper industry in Slovakia, the Czech Republic, Austria and Germany for the period 2008-2013. We also analyse the price trends of raw-wood assortments of the III.C class spruce, fir and beech saw-logs, pulpwood and firewood in selected countries of Austria, the Czech Republic and Slovakia. The analysed period represented the last 7 years (from 2008 - April 2015). The last part is devoted to evaluation of the potential of these assortments as a source of raw material for pulp and paper industry.

scholarly journals EFFECT OF USING WHEY POWDER ON THE PROPERTIES OF PULP AND PAPER OBTAINED FROM STORED BAGASSE

2021 ◽  
Vol 55 (7-8) ◽  
pp. 799-807
Author(s):  
PEJMAN REZAYATI-CHARANI ◽  
AHMAD AZIZI MOSSELLO ◽  
MOHAMMAD BERVAIE
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Qualitative Properties ◽  
Paper Properties ◽  
Whey Powder ◽  
Soda Pulp

The aim of this study was to investigate the effect of using whey powder (different concentrations and treatment repetitions) as a probiotic agent on the quantitative and qualitative properties of stored bagasse intended for use in the pulp and paper industry. For this purpose, whey powder was added in three concentrations and the treatment was applied once or twice. After that, soda pulp was prepared under conventional conditions. Then, handsheets (80 g/m2) were made and tested in terms of paper properties, and the results were compared. The findings revealed that increasing the concentration of whey powder and the number of treatments significantly improved the pulp and paper characteristics, thus, using the treatment with 2% whey powder twice and 0.4% whey powder once led to the best results for bagasse protection in terms of quality of the raw material, pulp and handsheets.

scholarly journals From Pine to Perfume

2021 ◽  
Vol 75 (9) ◽  
pp. 780-787
Author(s):  
Gilles Sagorin ◽  
Emmanuel Cazeils ◽  
Jean-François Basset ◽  
Maud Reiter
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Kraft Process ◽  
Current Article

CST (Crude Sulfate Turpentine) is an upcycled, biomass raw material derived from pinewood, obtained as a by-product of the Kraft process from the pulp and paper industry. The current article provides an overview of major renewable perfumery ingredients obtained from CST-derived alpha- and beta-pinene to-date and part of the Firmenich manufacturing portfolio, post DRT acquisition.

Method and Device of Pyrolytic Processing of Pulp and Paper Industry’ Waste into High-Quality Synthesis Gas

2018 ◽  
Vol 22 (11) ◽  
pp. 4-9
Author(s):  
V.M. Zaitchenko ◽  
K.O. Krysanova ◽  
V.A. Lavrenov
Keyword(s):  
Synthesis Gas ◽  
High Efficiency ◽  
Paper Industry ◽  
Fixed Bed ◽  
Pulp And Paper Industry ◽  
Processing Parameters ◽  
Pulp And Paper ◽  
Raw Material ◽  
Experimental Investigations ◽  
High Quality

Paper presents the results of the experimental investigations of the pulp and paper industry’ wood waste processing method into high-quality synthesis gas. The main characteristics of feedstock (moisture and ash content, elemental composition, higher and lower heating values, volatile matter and fixed carbon content) and synthesis gas (yield, chemical composition, heating value and tar content) in dependence of the processing parameters are described. Processing is carried out by the two-stage pyrolytic conversion method, combining pyrolysis and subsequent high-temperature cracking of volatiles in the charcoal fixed bed. The principal scheme and results of the thermotechnical characteristics calculation of the pilot plant capacity of 300 kg/h of raw material (mechanical mixture of wood chips and bark with a moisture content of 48 %) are presented. The obtained results confirm the high efficiency of the method as applied to the processing of this type of waste.

scholarly journals Identification of Extractives from Various Poplar Species

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 647
Author(s):  
Dominika Szadkowska ◽  
Janusz Zawadzki ◽  
Paweł Kozakiewicz ◽  
Andrzej Radomski
Keyword(s):  
Fatty Acids ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Chemical Processing ◽  
Populus Alba ◽  
Poplar Wood ◽  
Poplar Trees ◽  
Detailed Chemical

Fast-growing poplar trees from plantations are the source of inexpensive wood that is intended mainly for chemical processing in the pulp and paper industry. Their potential as raw material for biofuel manufacturing is widely discussed as well. The detailed chemical composition of this raw material is therefore an important question. Five species of poplars were investigated: Populus alba, P. maximowiczii, P. trichocarpa, P. nigra, andP. tremula. Wood is a material consisting mainly of lignocellulose, but there are also many extractives. In temperate zone climate they typically represent up to 5% of wood mass. Their identification is difficult, due to various classes of compounds and great number of individual ones. These compounds can affect the properties of wood—its resistance to biotic agents and suitability to enzymatic treatment towards biofuels. Gas chromatography coupled with mass spectrometer (GC-MS) was used to analysis of extractives in various species of poplar wood. Compounds from several classes were identified like phenols, fatty acids, and their derivatives, sterols. Their identification was discussed along with estimation of their content in wood of investigated species.

scholarly journals RESOURCE-SAVING TECHNOLOGY OF CARDBOARD AND PAPER PRODUCTS

2021 ◽  
Vol 297 (3) ◽  
pp. 112-115
Author(s):  
VITA HALYSH ◽  
IRYNA DEYKUN ◽  
Keyword(s):  
Surface Layer ◽  
Raw Materials ◽  
Paper Industry ◽  
Physical And Mechanical Properties ◽  
Cellulose Fibers ◽  
Pulp And Paper Industry ◽  
Wood Pulp ◽  
Pulp And Paper ◽  
Raw Material ◽  
Corrugated Cardboard

Nowadays, the products of domestic enterprises of the pulp and paper industry are 80% made from secondary raw materials – recycling paper, which negatively affects its quality, narrows the range and limits the scope of use. This state of the industry connected with the lack of domestic production of cellulose fibrous products. The raw material problem of the pulp and paper industry of Ukraine can be solved by using annual plants and wastes of crop processing for the production of fibrous materials for various purposes. Rapeseed stalks can be considered as a promising raw material to meet the needs of the pulp and paper industry. The aim of the work is to study the physical and mechanical properties of writing paper and cardboard for flat layers of corrugated cardboard, which contain cellulose fibers of rapeseed stalks. This paper presents the results of research of sizes of elementary cellulose fibers from rapeseed stalks. Studies of the fractional composition showed that 70% of cellulose fibers from rapeseed have a length in the range of 0.02 to 0.81 mm and only 30% have a length exceeding 1 mm. To study the effect of cellulose content from rapeseed stalks in the composition of writing paper, paper samples of 80 g/m2 were prepared at different ratios of cellulose from non-wood raw materials to coniferous cellulose. Studies have shown that the surface of paper made of non-wood pulp has a high smoothness and uniform lumen and is more elastic compared to paper made of bleached coniferous sulfate pulp. According to the results of physical and mechanical tests, it can be concluded that the increase in the content of non-wood pulp from rapeseed stalks in the composition of writing paper leads to a decrease in all physical and mechanical properties of the paper. To study the effect of non-wood pulp from rapeseed stalks in a cardboard composition for flat layers of corrugated cardboard, cardboard samples of 175 g/m2 were made. Recycling paper of MS-6B was used as a bottom layer, and non-wood pulp as a surface layer of cardboard. The ratio of recycling paper to non-wood pulp in laboratory samples of cardboard was 80:20 mass %. According to the results, it can be concluded that the use for the surface layer of non-wood pulp from rapeseed stalks allows to obtain cardboard with strength values that fully meet the requirements for cardboard of K-1 type. In general, it was shown that non-wood rapeseed pulp can be used to replace more expensive sulfate bleached coniferous pulp in the production of writing paper and cardboard for flat layers of corrugated cardboard as a surface layer.

scholarly journals High yield CTMP fibres as a possibility of the more efficient yield of wood raw material

2004 ◽  
Vol 58 (5) ◽  
pp. 217-220
Author(s):  
Bojana Klasnja ◽  
Spiro Kopitovic ◽  
Stanislav Herak
Keyword(s):  
Adverse Effect ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
High Yield ◽  
Limiting Factor ◽  
Chemical Pulp ◽  
Sulphate Pulp

The evident shortage of wood as a raw material has become a limiting factor in the pulp and paper industry which is the greatest consumer of wood in Europe. The situation in our country is similar. During the few past years, the production of poplar and willow pulpwood was 220.000 m3 per year, which is insufficient for the planned increase in the production of sulphate pulp (175.000 tons till 2005). This paper deals with the aspects of the more efficient yield of raw material, based on the significantly higher yield of CTMP fibres, as well as with the significance of the lower adverse effect on the environment. It also analyses the conditions of production and the quality of the obtained fibres, as a possible substitute for chemical pulp and secondary fibres in papers of different quality. The main reasons for the production and use of CTMP fibres in our country are reported.

Sign in / Sign up

Export Citation Format

Share Document