resarПриродные ресурсы Арктики и СубарктикиArctic and Subarctic Natural Resources2618-97122686-9683Академия наук Республики Саха (Якутия)10.31242/2618-9712-2024-29-4-553-561resar-595Research ArticleНауки о Земле. Инженерная геология, мерзлотоведение и грунтоведениеEarth sciences. Engineering geology, permafrost and soil scienceТехнологическая схема щелочной активации бурых углей Дальневосточного регионаTechnological scheme for the alkaline activation of lignite coals in the Far Eastern Regionhttps://orcid.org/0009-0008-0088-7373ВорсинаЕ. В.VorsinaE. V.

Ворсина Елена Владимировна, кандидат технических наук, доцент, старший научный сотрудник

ResearcherID: LOS-0331-2024, Scopus Author ID: 57200417340

г. Якутск

Vorsina Elena Vladimirovna, Cand. Sci. (Eng.), Assistant Professor, Senior Researcher

ResearcherID: LOS-0331-2024, Scopus Author ID: 57200417340

Yakutsk

labkiy@mail.ruhttps://orcid.org/0000-0003-2782-2488МоскаленкоТ. В.MoskalenkoT. V.

Москаленко Татьяна Владимировна, кандидат технических наук, старший научный  сотрудник

ResearcherID: AFN-8465-2022, Scopus Author ID: 6603241867

г. Якутск

Moskalenko Tatiana Vladimirovna, Cand. Sci. (Eng.), Senior Researcher

ResearcherID: AFN-8465-2022, Scopus Author ID: 6603241867

Yakutsk

labkiy@mail.ruhttps://orcid.org/0009-0009-1531-4516МихеевВ. А.MikheevV. A.

Михеев Валерий Александрович, кандидат технических наук, ведущий научный сотрудник

ResearcherID: LPQ-0824-2024, Scopus Author ID: 57198098218

г. Якутск

Mikheev Valery Alexandrovich, Cand. Sci. (Eng.), Leading Researcher

ResearcherID: LPQ-0824-2024, Scopus Author ID: 57198098218

Yakutsk

labkiy@mail.ruИнститут горного дела Севера им. Н.В. Черского СО РАНРоссияChersky Mining Institute of the North, Siberian Branch of the Russian Academy of SciencesRussian Federation202426122024294553561Copyright © Ворсина Е.В., Москаленко Т.В., Михеев В.А., 20242024Ворсина Е.В., Москаленко Т.В., Михеев В.А.Vorsina E.V., Moskalenko T.V., Mikheev V.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://resar.elpub.ru/jour/article/view/595

В статье показана актуальность развития теории и практики глубокой переработки угля, обусловленная современными трендами развития мировой угольной промышленности и прогнозом понижения спроса на уголь в энергетике за счет введения альтернативных источников энергии. Бурые угли, с учетом их богатейшей базы в Российской Федерации и уникальности их свойств ввиду низкой степени метаморфизма, весьма перспективны как сырье для производства сорбентов для очистки технологических, коммунальных и производственных сточных вод. Целью исследования является разработка технологической схемы щелочной активации бурых углей Дальневосточного региона, позволяющей получать высококачественные сорбенты для адсорбции из жидкой фазы. Исследование проводилось в лабораторных условиях на бурых углях четырех месторождений: Харанорское, Кангаласское, Кировское, Окино-Ключевское. Исследование вариантов проведения операций стадий (подготовки бурого угля к активации, щелочной активации и заключительной обработки) на основании анализа полученных величин адсорбционной активности по йоду позволило подобрать оптимальные параметры, набор и последовательность проведения операций. Разработанная принципиальная технологическая схема щелочной активации бурых углей гидроксидом калия, включает 14 операций, в том числе термовыщелачивание и механоактивацию, позволяет получать сорбенты с высокой адсорбционной активностью по йоду (более 90 %). Результаты исследований по получению сорбентов щелочной активацией бурых углей позволяют говорить о технологической осуществимости, высокой эффективности и перспективности этого направления переработки бурых углей месторождений Дальнего Востока.

The article shows the relevance of the theory and practice of deep coal processing. The increasing relevance is based on modern trends in the development of the global coal industry and forecasts regarding the decrease in demand for coal in the energy sector due to the introduction of alternative energy sources. The Russian Federation has the richest raw material base of coals, including lignite. Due to the low degree of metamorphism, lignite’s are unique in their properties and are very promising as a raw material for the production of sorbents for the treatment of industrial, municipal and industrial wastewater. The aim of the study is to develop a process flow chart for alkaline activation of lignite coals in the Far Eastern region to obtain high-quality sorbents for adsorption from the liquid phase. The laboratory study was conducted on lignite coals from four deposits in the Far Eastern region (Kharanorskoye, Kangalasskoye, Kirovskoye, Okino-Klyuchevskoye deposits). General scientific and empirical methods were used: analysis and generalization of scientific literature on the research problem, experiment, analysis, comparison and mathematical processing of the obtained experimental data. A study was conducted of various options for carrying out three stages of the process of obtaining sorbents (preparation of lignite coal for activation, alkaline activation and final processing). Analysis of the obtained data on the sorption properties of the obtained samples made it possible to determine the optimal parameters and sequence of operations in the process of alkaline activation of lignite coals. A process flow chart for alkaline activation of lignite coals with potassium hydroxide has been developed, consisting of 14 operations, including thermal leaching and mechanical activation. Carrying out the process of alkaline activation of lignite according to this technological scheme allows obtaining sorbents with high adsorption activity for iodine (more than 90 %). The results of the research allow us to speak about the technological feasibility, high efficiency and prospects of processing lignite coals from deposits in the Far Eastern into sorbents.

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The authors declare that there are no conflicts of interest present.