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One-Stage Synthesis of Triptane-Enriched Gasoline by CO<sub>2</sub> Hydrogenationстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 января 2026 г.
- Авторы: Matieva Zareta M., Snatenkova Yulia M., Dement’ev Konstantin I., Maximov Anton L.
- Журнал: Energy and Fuels
- Том: 39
- Номер: 38
- Год издания: 2025
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 18628
- Последняя страница: 18640
- DOI: 10.1021/acs.energyfuels.5c04306
- Аннотация: In the presence of bifunctional combined catalysts, including oxide CuZnAl/Al2O3 and zeolite Pd-Lat/pHY/Al2O3 catalysts, a one-stage synthesis of liquid hydrocarbons was carried out from CO2 and H2 under conditions that were rather severe for the synthesis of triptane (340 °C, 10 MPa, GHSV = 20 000 h–1). It was shown that for the combined catalyst, the most optimal ratio of CuZnAl–Al2O3 and Pd-Lat/pHY/Al2O3 catalysts is their ratio in the form of a physical mixture equal to 2:1. The introduction of La into HY via one-stage ion exchange in an autoclave at an elevated temperature and pressure (185 °C, 2 MPa) ensured a uniform distribution of lanthanum cations in the zeolite crystal volume, positively affecting gasoline selectivity. On CuZnAl/Al2O3 + Pd-Lat/pHY/Al2O3 combined catalyst, a selectivity for gasoline of 35 wt % (56 wt % based on the total amount of hydrocarbons) with an isoalkanes content of 80 wt %, including 12 wt % triptane, was achieved. CO2 conversion (28%) and C5+ selectivity remained stable for 72 h. The work demonstrates the practical possibility of obtaining triptane-enriched gasoline via one-stage synthesis from CO2 and H2, which by its composition is the basic component of environmentally friendly motor fuels.
- Добавил в систему: Захарян Елена Михайловна