Modification of the Physicochemical Properties of High-Crystallinity Granular Y Zeolite by Steam Heating and Acid Treatment
| Autor: | M. R. Agliullin, B. I. Kutepov, V. A. Dyakonov, O. S. Travkina, A. N. Khazipova, I. N. Pavlova |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Aqueous solution 010405 organic chemistry General Chemical Engineering food and beverages Energy Engineering and Power Technology General Chemistry Crystal structure 010402 general chemistry complex mixtures 01 natural sciences humanities 0104 chemical sciences chemistry.chemical_compound Crystallinity Fuel Technology chemistry Chemical engineering Geochemistry and Petrology Steam heating Acid treatment Citric acid Zeolite Porosity |
| Zdroj: | Petroleum Chemistry. 61:284-291 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544121030026 |
| Popis: | This study investigates, for the first time, the effects of steam heating of hierarchical porous-structured granular Y zeolite samples and of their subsequent treatment with aqueous nitric and citric acid solutions on the acid properties and porous structure characteristics of the samples. It was demonstrated that acid treatment of a sample not subjected to preliminary steam heating stabilization leads to its decationation, dealumination, and partial amorphization of its crystal lattice. In contrast, acid treatment of a steam-stabilized sample was found to mitigate the lattice destruction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|