Preparation of Microporous Sorbents from Cedar Nutshells and Hydrolytic Lignin Научная публикация
| Журнал |
Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891 |
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| Вых. Данные | Год: 2003, Том: 41, Номер: 9, Страницы: 1793-1800 Страниц : 8 DOI: 10.1016/S0008-6223(03)00149-0 | ||||
| Ключевые слова | A. Porous carbon, B. Carbonization, activation, C. Adsorption, D. Microporosity | ||||
| Авторы |
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| Организации |
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Реферат:
Carbon nutshells and hydrolytic lignin were used as starting materials for the preparation of microporous active carbons. Optimum parameters for cedar nutshell carbonization have been selected (temperature of carbonization 700–800 °C, rate of heating less than 3 °C/min) for the preparation of microporous carbons (average pore width 0.56 nm). The textural characteristics of microporous carbons made from nutshell are similar to those of a ‘Coconut’ carbon molecular sieve, but the latter has both a higher CO2 adsorption capacity and a higher coefficient of N2/O2 separation. The influence of carbonization and steam-activation parameters on the microtexture and molecular-sieve properties of granular carbons made from hydrolytic lignin was also investigated. A low rate of heating (less 3 °C/min) promotes the formation of micropores with average sizes around 0.56–0.58 nm at carbonization temperature 700 °C. At the same carbonization temperature the average sizes of micropores were 0.7–0.78 nm at rates of heating more than 3 °C/min. The activation of lignin-char with steam at 800 °C resulted in the formation of active carbons with more developed micropore volume (0.3–0.35 cm3 g−1) and with micropores of widths around 0.6–0.66 nm which are able to separate He from a He–CH4 mixture. The size of the micropores was varied as a function of burn off value.
Библиографическая ссылка:
Baklanova O.N.
, Plaksin G.V.
, Drozdov V.A.
, Duplyakin V.K.
, Chesnokov N.V.
, Kuznetsov B.N.
Preparation of Microporous Sorbents from Cedar Nutshells and Hydrolytic Lignin
Carbon. 2003. V.41. N9. P.1793-1800. DOI: 10.1016/S0008-6223(03)00149-0 WOS Scopus РИНЦ CAPlusCA OpenAlex
Preparation of Microporous Sorbents from Cedar Nutshells and Hydrolytic Lignin
Carbon. 2003. V.41. N9. P.1793-1800. DOI: 10.1016/S0008-6223(03)00149-0 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 12 апр. 2001 г. |
| Опубликована в печати: | 1 янв. 2003 г. |
| Принята к публикации: | 25 мар. 2003 г. |
| Опубликована online: | 14 июн. 2003 г. |
Идентификаторы БД:
| Web of science: | WOS:000183818100011 |
| Scopus: | 2-s2.0-0037705620 |
| РИНЦ: | 13444412 |
| Chemical Abstracts: | 2003:462576 |
| Chemical Abstracts (print): | 139:293996 |
| OpenAlex: | W2075770422 |