Oxidative removal of dibenzothiophene from a model fuel using nanocrystalline Ti-beta catalyst

Autor:	Jayanta Kumar Basu, Sonali Sengupta, Uttam Maity
Rok vydání:	2016
Předmět:	Reactions on surfaces 010405 organic chemistry Substrate (chemistry) Activation energy 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Adsorption chemistry Chemical engineering Dibenzothiophene Organic chemistry Hydrogen peroxide BET theory
Zdroj:	Journal of the Energy Institute. 89:648-656
ISSN:	1743-9671
DOI:	10.1016/j.joei.2015.06.001
Popis:	Dibenzothiophene (DBT) was oxidised by hydrogen peroxide in a batch operation using nano-crystalline Ti-beta catalyst. The catalyst was prepared and characterized by XRD, SEM, TEM and BET surface area analysis. The parametric studies of the reaction, effects of stirrer speed, catalyst concentration, initial DBT concentration, oxidant to substrate mole ratio and temperature were investigated. The kinetic study emphasised on the analysis of Langmuir Hinshelwood type rate model in the present work. Three rate models based on adsorption, dual site surface reaction and single site Eley-Riedel mechanism were compared by fitting with the experimental data and the surface reaction controlled rate model was found to be the appropriate one. The activation energy of reaction was obtained as 46.03 kJ/mol.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::819cf1ed02d508b8daab1e2d5930e438 https://doi.org/10.1016/j.joei.2015.06.001 Zobrazit plný text záznamu Full Text from ScienceDirect