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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">geores</journal-id><journal-title-group><journal-title xml:lang="ru">Георесурсы</journal-title><trans-title-group xml:lang="en"><trans-title>Georesources</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-5043</issn><issn pub-type="epub">1608-5078</issn><publisher><publisher-name>Georesursy LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18599/grs.2025.3.9</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-581</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>ГАЗОВЫЕ ГИДРАТЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GAS HYDRATES</subject></subj-group></article-categories><title-group><article-title>Исследование диссоциации гидратов метана при отрицательных температурах</article-title><trans-title-group xml:lang="en"><trans-title>Study of methane hydrate dissociation under subzero temperatures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Молокитина</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Molokitina</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Сергеевна Молокитина – кандидат тех. наук, ведущий научный сотрудник</p><p>625026, Тюмень, ул. Малыгина, д. 86</p></bio><bio xml:lang="en"><p>Nadezhda S. Molokitina – Cand. Sci. (Engineering), Leading Researcher</p><p>86 Malygina st., Tyumen, 625026</p></bio><email xlink:type="simple">nsmolokitina.ikz@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жингель</surname><given-names>П.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhingel</surname><given-names>P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Полина Жингель – младший научный сотрудник</p><p>625026, Тюмень, ул. Малыгина, д. 86</p></bio><bio xml:lang="en"><p>Polina Zhingel – Junior Researcher</p><p>86 Malygina st., Tyumen, 625026</p></bio><email xlink:type="simple">polinazhingel@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плетнева</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pletneva</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клавдия Андреевна Плетнева – младший научный сотрудник</p><p>625026, Тюмень, ул. Малыгина, д. 86</p></bio><bio xml:lang="en"><p>Klavdiya A. Pletneva – Junior Researcher</p><p>86 Malygina st., Tyumen, 625026</p></bio><email xlink:type="simple">klavdia1010@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт криосферы Земли Тюменского научного центра Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of the Earth Cryosphere of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>27</day><month>09</month><year>2025</year></pub-date><volume>27</volume><issue>3</issue><fpage>111</fpage><lpage>120</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Молокитина Н.С., Жингель П., Плетнева К.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Молокитина Н.С., Жингель П., Плетнева К.А.</copyright-holder><copyright-holder xml:lang="en">Molokitina N.S., Zhingel P., Pletneva K.A.</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://www.geors.ru/jour/article/view/581">https://www.geors.ru/jour/article/view/581</self-uri><abstract><p>Использование ресурсов криолитозоны в настоящее время – один из приоритетных вопросов в повестке научно-технологического и экономического развития Российской Федерации. Имеющиеся результаты изысканий подтверждают возможность использования криогенных процессов и явлений в инженерном деле, сельском хозяйстве, сохранении биологического разнообразия и в ряде других направлений, таких как, например, хранении газа в твердом гидратном состоянии. В данной работе приводятся результаты исследований диссоциации гидратов метана, полученных в системах с промотирующими добавками, с целью определения условий и эффективности хранения газа в твердом гидратном состоянии. Диссоциация гидратов, сформированных из жидких растворов или дисперсных систем, осуществлялась экспериментальными методами с использованием реактора высокого давления в диапазоне температур 263–268 К, то есть близких к температурам залегания многолетнемерзлых пород. Показано, что гидрат метана, сформированный из жидких растворов поверхностно-активных веществ – соевого лецитина и додецилсульфат натрия, обладает высокой пористостью, вследствие чего практически не способен к самоконсервации и не может применяться при реализации газогидратных технологий хранения газа. При этом добавка водорастворимого полимера поливинилового спирта в концентрации 0,3 мас.% приводит к росту более плотного гидрата метана, способного к самоконсервации при температуре 268 К. Данные, полученные в работе, могут быть использованы при разработке газогидратных технологий хранения природного газа в твердом гидратном состоянии.</p></abstract><trans-abstract xml:lang="en"><p>The use of cryolithozone resources is currently one of the priority issues on the agenda of scientific and technological and, consequently, economic development of the Russian Federation. The available research results confirm the possibility of using cryogenic processes and phenomena in engineering, agriculture, conservation of biological diversity and a number of other areas, such as, for example, for storing gas in a solid hydrate state. This paper presents the results of studies of methane hydrate dissociation obtained in systems with the presence of promoting additives in order to determine the conditions and efficiency of gas storage in a solid hydrate state. Dissociation of gas hydrates formed from liquid solutions or dispersed systems was carried out by experimental methods using a high-pressure reactor in the temperature range of 263–268 K, i.e. close to the temperatures of permafrost occurrence. Thus, it was shown that methane hydrates formed from liquid solutions of surfactants - soy lecithin and SDS, has high porosity, as a result of which it is practically incapable of self-preservation and cannot be used in the implementation of gas hydrate technologies for gas storage. At the same time, the addition of water-soluble polymer polyvinyl alcohol in a concentration of 0.3 wt.% leads to the growth of a denser methane hydrate capable of self-preservation at a temperature of 268 K. The data obtained in the work can be used in the development of gas hydrate technologies for storing natural gas in a solid hydrate state.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>газовые гидраты</kwd><kwd>диссоциация при Т</kwd><kwd>эффект самоконсервации</kwd><kwd>кинетические промоторы</kwd><kwd>хранение природного газа в криолитозоне</kwd><kwd>мерзлотные хранилища</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gas hydrates</kwd><kwd>dissociation at T</kwd><kwd>selfpreservation effect</kwd><kwd>kinetic promoters</kwd><kwd>storage of natural gas in the cryolithozone</kwd><kwd>permafrost storage facilities</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена Институтом криосферы Земли ТюмНЦ СО РАН в рамках государственного задания Министерства науки и высшего образования Российской Федерации (тема № FWRZ-2024-0003). Публикация статьи поддержана Министерством науки и высшего образования Российской Федерации по соглашению № 075-10-2022-011 в рамках программы развития НЦМУ.</funding-statement><funding-statement xml:lang="en">The research was carried by the Earth Cryosphere Institute of the Tyumen Scientific Centre of Siberian Branch of the Russian Academy of Sciences within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme No. FWRZ-2024-0003). The publication of the article was supported by the Ministry of Science and Higher Education of the Russian Federation under agreement No. 075-10-2022-011 within the framework of the development program for a world-class Research Center.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Бондарев Э.А., Рожин И.И., Попов В.В., Аргунова К.К. (2015). 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