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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">isplta</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Санкт-Петербургской лесотехнической академии</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-4304</issn><issn pub-type="epub">2658-5871</issn><publisher><publisher-name>СПбГЛТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21266/2079-4304.2022.241.244-255</article-id><article-id custom-type="elpub" pub-id-type="custom">isplta-191</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЧЕСКАЯ ПЕРЕРАБОТКА ДРЕВЕСИНЫ. БИОТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL TECHNOLOGY OF WOOD. BIO TECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>Поведение зольных элементов древесины в процессе кислотного гидролиза древесины</article-title><trans-title-group xml:lang="en"><trans-title>The behavior of ash elements of wood in the process of acid hydrolysis of wood</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9546-4275</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончарова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ГОНЧАРОВА Виктория Алексеевна – студент</p><p>194021, Институтский пер., д. 5, Санкт-Петербург</p></bio><bio xml:lang="en"><p>GONCHAROVA Victoria A. – student in the Department of technology of wood chemical products, wood chemistry and biotechnology</p><p>194021. Institute al. 5. St. Petersburg</p></bio><email xlink:type="simple">Goncharova800@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6042-0021</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пименов</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Pimenov</surname><given-names>S. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ПИМЕНОВ Сергей Дмитриевич – аспирант</p><p>194021, Институтский пер., д. 5, Санкт-Петербург</p><p>ResearcherID: AAC-9435-2020</p></bio><bio xml:lang="en"><p>PIMENOV Sergey D., – PhD student</p><p>194021. Institute al. 5. St. Petersburg</p></bio><email xlink:type="simple">chudopim@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0480-3156</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бахтиярова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakhtiiarova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>БАХТИЯРОВА Анна Валерьевна – старший преподаватель кафедры технологии лесохимических продуктов, химии древесины и биотехнологии</p><p>194021, Институтский пер., д. 5, Санкт-Петербург</p></bio><bio xml:lang="en"><p>BAKHTIIAROVA Anna V. – senior lecturer of the Department of technology of wood chemical products, wood chemistry and biotechnology</p><p>194021. Institute al. 5. St. Petersburg</p></bio><email xlink:type="simple">nyroc@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9412-5557</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сизов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>СИЗОВ Александр Иванович – ведущий научный сотрудник, кандидат технических наук</p><p>194021, Институтский пер., д. 5, Санкт-Петербург</p><p>ResearcherID: AAI-2030-2020</p></bio><bio xml:lang="en"><p>SIZOV Alexander I. – PhD (Technical), Senior Scientist</p><p>194021. Institute al. 5. St. Petersburg</p></bio><email xlink:type="simple">sizov.alex@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.Petersburg state Forest Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.Petersburg State Forest Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg state Forest Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>29</day><month>02</month><year>2024</year></pub-date><volume>0</volume><issue>241</issue><fpage>244</fpage><lpage>255</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гончарова В.А., Пименов С.Д., Бахтиярова А.В., Сизов А.И., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Гончарова В.А., Пименов С.Д., Бахтиярова А.В., Сизов А.И.</copyright-holder><copyright-holder xml:lang="en">Goncharova V.A., Pimenov S.D., Bakhtiiarova A.V., Sizov A.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://izvestiya-lta.spbftu.ru/jour/article/view/191">https://izvestiya-lta.spbftu.ru/jour/article/view/191</self-uri><abstract><p>Минеральные вещества, помимо большого физиологического значения в развитии растений, оказывают значительное влияние на процессы химической и термохимической переработки древесины. В особенности, это важно при проведении кислотных гидролитических процессов углеводного комплекса и связанных с этим процессами нейтрализации кислоты зольными элементами растительных материалов. Исследование поведения зольных элементов древесины в процессе кислотного гидролиза древесины явилось целью настоящей работы. В работе было показано, что зольные вещества древесины березы легко экстрагируются водой и слабыми растворами кислот при комнатной температуре. При этом водорастворимые вещества составляют 42,4%, а кислоторастворимые – 63,6% от общего содержания золы в древесине. Анализ способности зольных веществ древесины березы к нейтрализации кислоты показал, что полная нейтрализация составляет 72,5 мг-экв/кг сухой массы (3,55 г серной кислоты на 1 кг древесины); после водной экстракции – 34,0 мг-экв/кг, а после экстракции растворами кислоты – 9,4-13,6 мг-экв/кг. При проведении гемицеллюлозного гидролиза древесины березы происходит удаление более 85% массы зольных элементов древесины, в том числе более 85% солей кальция, 90% солей магния, 90% фосфора и 63% калия. Нейтрализующая способность золы при этом составила 62,4 мг-экв/кг сухой массы (3,1 г серной кислоты на 1 кг древесины). Выбранный на основании полученных данных режим малокислотного гемицеллюлозного гидролиза древесины, при условии 50% нейтрализации серной кислоты зольными элементами (6,25 г/кг сухого сырья), показал значительно лучшие показатели по скорости гидролиза, содержанию моносахаридов и цветности экстракта по сравнению с автогидролизом.</p></abstract><trans-abstract xml:lang="en"><p>Mineral substances, in addition to their great physiological significance in the development of plants, have a significant effect on the processes of chemical and thermochemical processing of wood. In particular, this is important when carrying out acidic hydrolytic processes of the carbohydrate complex and associated processes of acid neutralization with ash elements of plant materials. The study of the behavior of ash elements of wood in the process of acid hydrolysis of wood was the goal of this work. It was shown in the work that the ash substances of birch wood are easily extracted with water and weak acid solutions at room temperature. At the same time, water-soluble substances make up 42.4%, and acid-soluble ones – 63.6% of the total ash content in wood. Analysis of the ability of ash substances of birch wood to neutralize acid showed that complete neutralization is – 72.5 mg-eq/kg dry weight (3.55 g of sulfuric acid per 1 kg of wood); after water extraction – 34.0 mEq/kg, and after extraction with acid solutions – 9.4-13.6 mEq/kg. When carrying out hemicellulose hydrolysis of birch wood, more than 85% of the mass of ash elements of the wood is removed, including more than 85% of calcium salts, 90% of magnesium salts, 90% of phosphorus and 63% of potassium. At the same time, the neutralizing ability of ash was 62.4 mg-eq/kg of dry weight (3.1 g of sulfuric acid per 1 kg of wood). The mode of low-acid hemicellulose hydrolysis of wood, selected on the basis of the data obtained, under the condition of 50% neutralization of sulfuric acid with ash elements (6.25 g/kg of dry raw materials). Showed significantly better indicators in terms of the rate of hydrolysis, the content of monosaccharides and the color of the extract in comparison with autohydrolysis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>зольные вещества</kwd><kwd>малокислотный гидролиз</kwd><kwd>нейтрализация кислоты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ash substances</kwd><kwd>low acid hydrolysis</kwd><kwd>acid neutralization</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Корольков И.И. Перколяционный гидролиз растительного сырья / М.: Лесн. пром-сть», 1990. 272 с.</mixed-citation><mixed-citation xml:lang="en">Aston J.E., Thompson D.N., Westover T.L. Performance assessment of dilute-acid leaching to improve corn stover quality for thermochemical conversion. Fuel, 2016, no. 186, pр. 311–319. DOI: 10.1016/j.fuel.2016.08.056</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Aston J.E., Thompson D.N., Westover T.L. Performance assessment of dilute-acid leaching to improve corn stover quality for thermochemical conversion // Fuel. 2016. №186. Р. 311–319. DOI: 10.1016/j.fuel.2016.08.056</mixed-citation><mixed-citation xml:lang="en">Bin Y., Hongzhang C. Effect of the ash on enzymatic hydrolysis of steamexploded rice straw. Bioresour Technol., 2010, no. 101, pр. 9114–9119. DOI: 10.1016/j.biortech.2010.07.033</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Bin Y., Hongzhang C. Effect of the ash on enzymatic hydrolysis of steam- exploded rice straw // Bioresour Technol. 2010. № 101. Р. 9114–9119. DOI: 10.1016/j.biortech.2010.07.033</mixed-citation><mixed-citation xml:lang="en">Chin K.L., H'ng P.S., Paridah M.T., Szymona K., Maminski M., Lee S.H., Lum W.C., Nurliyana M.Y., Chow M.J., Go W.Z. Reducing ash related operation problems of fast growing timber species and oil palm biomass for combustion applications using leaching technique. Energy, 2015, no. 90, pp. 622–630. DOI: 10.1016/j.energy.2015.07.094</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Chin K.L., H'ng P.S., Paridah M.T., Szymona K., Maminski M., Lee S.H., Lum W.C., Nurliyana M.Y., Chow M.J., Go W.Z. Reducing ash related operation problems of fast growing timber species and oil palm biomass for combustion applications using leaching technique // Energy. 2015. № 90. Р. 622–630. DOI: 10.1016/j.energy.2015.07.094</mixed-citation><mixed-citation xml:lang="en">He Y., Fang Z., Zhang J., Li X., Bao J. De-ashing treatment of corn stover improves the efficiencies of enzymatic hydrolysis and consequent ethanol fermentation. Bioresour Technol., 2014, no. 169, pp. 552–558. DOI: 10.1016/j.biortech.2014.06.088</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">He Y, Fang Z, Zhang J, Li X, Bao J. De-ashing treatment of corn stover improves the efficiencies of enzymatic hydrolysis and consequent ethanol fermentation // Bioresour Technol. 2014. № 169. Р. 552–558. DOI: 10.1016/j.biortech.2014.06.088</mixed-citation><mixed-citation xml:lang="en">Hörhammer H., Dou C. et al. Removal of non‐structural components from poplar whole‐tree chips to enhance hydrolysis and fermentation performance. Biotechnol Biofuels, 2018, no. 11, pp. 222–234. doi.org/10.1186/s13068-018-1219-4</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Hörhammer H., Dou C. et al. Removal of non‐structural components from poplar whole‐tree chips to enhance hydrolysis and fermentation performance // Biotechnol Biofuels. 2018. № 11. Р. 222–234. doi.org/10.1186/s13068-018-1219-4</mixed-citation><mixed-citation xml:lang="en">Korolkov I. I. Percolation hydrolysis of vegetable raw materials, M.: Forest industry, 1990. 272 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Lambert M.J. Inorganic constituents in wood and bark. Forestry commission of new south wales // Sydney, 1981. 45 р.</mixed-citation><mixed-citation xml:lang="en">Lambert M.J. Inorganic constituents in wood and bark. Forestry commission of new south wales. Sydney, 1981. 45 р.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Lloyd T.A., Wayman C.E. Predicted effects of mineral neutralization and bisulfate formation on hydrogen ion concentration for dilute sulfuric acid pretreatment // Appl. Biochem. Biotech. 2004. № 115. Р. 1013–1022. DOI: 10.1385/ABAB:115:1-3:1013</mixed-citation><mixed-citation xml:lang="en">Lloyd T.A., Wayman C.E. Predicted effects of mineral neutralization and bisulfate formation on hydrogen ion concentration for dilute sulfuric acid pretreatment. Appl. Biochem. Biotech., 2004, no. 115, pp. 1013–1022. DOI:10.1385/ABAB:115:1-3:1013</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Rowell R.M. Handbook of wood chemistry and wood composites // Wiskonsin – Madison, 2005. 703 р. DOI: 10.1201/b12487</mixed-citation><mixed-citation xml:lang="en">Rowell R.M. Handbook of wood chemistry and wood composites. Wiskonsin – Madison, 2005. 703 р. DOI: 10.1201/b12487</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Santucci B.S., Maziero P., Rabelo S.C., Curvelo A.S., Pimenta M.B. Аutohydrolysis of Hemicelluloses from Sugarcane Bagasse During Hydrothermal Pretreatment: a Kinetic Assessment // BioEnergy Research. 2015. №8. Р. 1778–1787. DOI 10.1007/s12155-015-9632-z</mixed-citation><mixed-citation xml:lang="en">Santucci B.S., Maziero P., Rabelo S.C., Curvelo A.S., Pimenta M.B. Аutohydrolysis of Hemicelluloses from Sugarcane Bagasse During Hydrothermal Pretreatment: a Kinetic Assessment. BioEnergy Research, 2015, no. 8, pр. 1778–1787. DOI 10.1007/s12155-015-9632-z</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Springer E.L., Harris J.F. Procedures for Determining the Neutralizing Capacity of Wood during Hydrolysis with Mineral Acid Solutions // Ind. Eng. Chem. Prod. Res. Dev. 1985. № 24. Р. 485–489</mixed-citation><mixed-citation xml:lang="en">Springer E.L., Harris J.F. Procedures for Determining the Neutralizing Capacity of Wood during Hydrolysis with Mineral Acid Solutions. Ind. Eng. Chem. Prod. Res. Dev., 1985, no. 24, pр. 485–489.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
