Experimental Study on Thermal and Catalytic Hydrogen Bromide Oxidation

Autor:	Felix Matulla, Furkan Saki, David W. Agar, Jesús González Rebordinos
Rok vydání:	2018
Předmět:	Exothermic reaction Chemical kinetics Reaction rate chemistry.chemical_compound Materials science chemistry General Chemical Engineering Hydrogen bromide Inorganic chemistry Thermal General Chemistry Industrial and Manufacturing Engineering Catalysis
Zdroj:	Industrial & Engineering Chemistry Research. 57:17111-17118
ISSN:	1520-5045 0888-5885
DOI:	10.1021/acs.iecr.8b04847
Popis:	Hydrogen bromide (HBr) oxidation is an important part of the bromination–oxidation cycle for CO2-free energy production, being the most exothermic reaction step. Although high temperatures favor reaction kinetics, equilibrium conversion decreases and thus thermal HBr oxidation is limited. A catalyst may be used to overcome thermodynamic limitations while ensuring high reaction rates, with the main drawback an increase in the costs. An experimental study has been conducted that shows that high conversions can be achieved within residence times of lower than 10 s at temperatures ranging from 800 to 1000 °C. A RuO2/Al2O3 catalyst has been synthesized and used for HBr oxidation, showing that conversions superior to 90% are achievable at temperatures as low as 200 °C with residence times inferior to 1 s.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::be4d8909911bd91ff664176a4002aee6 https://doi.org/10.1021/acs.iecr.8b04847 Zobrazit plný text záznamu