The effect of the storage time of hardwood in the form of balances on the resin content in wood and unbleached sulfate cellulose
https://doi.org/10.21266/2079-4304.2023.245.331-339
Abstract
Wood biomass is a source of energy and raw materials for the industrial production of biomaterials, biochemicals, biofuels and other processed products. In addition to the main chemical components (cellulose, hemicellulose, lignin), wood contains a wide range of low-molecular compounds, such as extractives. The content of extractive substances in wood coming to pulp cooking can vary widely depending on the type of wood, age of trees, harvesting season, time and place of storage, and many other factors. The influence of various factors has been well studied, but some nuances remain unclear. In this paper, the influence of the storage time of freshly cut deciduous wood in the open air on the resin content in wood and unbleached sulfate cellulose was investigated. At the same time, special conditions for storing wood were observed in order to minimize the influence of other factors on the resin content in the wood. Also in this study, data on the resin content in the wood coming for cooking for 2 years of observations are given. This made it possible to identify additional patterns associated with the peculiarities of local production, territorial and weather conditions, which may have a decisive influence on the resin content in the wood coming for cooking. When storing wood in production conditions, the lowest resin content in the wood coming for cooking is observed in the autumn period, the highest in winter. An increase in the storage time of wood leads to a decrease in the resin content in unbleached sulfate deciduous cellulose, at the same time, the breaking length of the cellulose decreases slightly.
About the Authors
S. A. Yakimov
JSC «Ilim Group»
Russian Federation
Russian Federation
YAKIMOV Sergey A. – Manufacturing director
165651. Dybtsyna str. 42. Koryazhma. Arkhangelsk Oblast
A. V. Koksharov
JSC «Ilim Group»
Russian Federation
Russian Federation
KOKSHAROV Alexander V. – Head of the research department
165651. Dybtsyna str. 42. Koryazhma. Arkhangelsk Oblast
E. V. Belykh
JSC «Ilim Group»
Russian Federation
Russian Federation
BELYKH Ekaterina V. – Head of quality service
165651. Dybtsyna str, 42. Koryazhma. Arkhangelsk Oblast
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Review
For citations:
Yakimov S.A., Koksharov A.V., Belykh E.V. The effect of the storage time of hardwood in the form of balances on the resin content in wood and unbleached sulfate cellulose. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2023;(245):331-339. (In Russ.) https://doi.org/10.21266/2079-4304.2023.245.331-339
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