Temperature Dependence of the Oxidation of Hydrogen with Sulfur Dioxide
- Авторлар: Gukasyan P.1, Makaryan E.1, Arutyunyan A.1, Davtyan A.1
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Мекемелер:
- Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia
- Шығарылым: Том 97, № 8 (2023)
- Беттер: 1200-1206
- Бөлім: ФИЗИЧЕСКАЯ ХИМИЯ ПРОЦЕССОВ ГОРЕНИЯ И ВЗРЫВА
- URL: https://journals.rcsi.science/0044-4537/article/view/136676
- DOI: https://doi.org/10.31857/S0044453723080083
- EDN: https://elibrary.ru/QUVYUB
- ID: 136676
Дәйексөз келтіру
Аннотация
An experimental study is performed of the mechanism of sulfur dioxide–hydrogen interaction (4Н2 + 2SО2 → S2 + 4H2О) at temperatures of 623, 673, 723, and 773 K and a pressure of 198 Torr. The mechanism is analyzed via mathematical modeling. It is found to be a chain reaction of hydrogen oxidation with sulfur dioxide, which results in the formation of molecular sulfur (S2). The process is characterized by negative Gibbs free energy ΔG723 = −49.950 kcal/mol. The potential energy surface of the (HOSO + HOSO) system is studied by various means of quantum chemistry, and the thermodynamic parameters of the НОSO + НОSO → SO + SO2 + Н2О reaction are determined. A new mechanism of the reaction, supplemented by elementary acts, is discussed. Good agreement is found between energies of activation determined experimentally and calculated using data from our numerical kinetic analysis.
Негізгі сөздер
Авторлар туралы
P. Gukasyan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia
Email: petros@ichph.sci.am
Yerevan, Armenia
E. Makaryan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia
Email: makaryan@mail.ru
Yerevan, Armenia
A. Arutyunyan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia
Email: makaryan@mail.ru
Yerevan, Armenia
A. Davtyan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia
Хат алмасуға жауапты Автор.
Email: makaryan@mail.ru
Yerevan, Armenia
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