Синтез и исследование пористой структуры биоуглей, полученных из отходов ракообразных

Образцы биоуглей из отходов переработки ракообразных синтезированы путем карбонизации с последующей щелочной активацией. Рассмотрено влияние параметров синтеза (время, температура) на пористую структуру биоугля. Результаты показали, что условия карбонизации биомассы существенно влияют на конечные параметры пористости. Установлено, что образцы биоугля, полученные путем варьирования параметров синтеза, микромезопористые. Показано, что температура является основным влияющим фактором при карбонизации биомассы. При трехчасовой продолжительности карбонизации и температуре 650 °C значения удельной поверхности (2708 м²/г)  и объемов пор (общий объем пор – 1,58 см³/г, объем микропор – 0,64 см³/г, объем мезопор – 0,94 см³/г) в полученном биоугле достигали максимального значения. Изучена адсорбция метана на полученном биоугле при температуре окружающей среды и давлении до 100 бар. Показано, что биоуголь из отходов переработки ракообразных демонстрирует высокую адсорбционную способность по метану, равную 18 ммоль/г. Экспериментальные данные адсорбции проанализированы с использованием моделей Ленгмюра, Фрейндлиха и Дубинина-Радушкевича. Влияние параметров синтеза на пористую структуру биоуглей, а также данные адсорбции, оцененные в исследовании, полезны для проектирования адсорбционных систем.

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