Conversion of the Propane–Butane Fraction into Arenes on MFI Zeolites Modified by Zinc Oxide and Activated by Low-Temperature Plasma; Molecules; Vol. 25, iss. 11
| Parent link: | Molecules Vol. 25, iss. 11.— 2020.— [2704, 16 p.] |
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| Autor corporatiu: | |
| Altres autors: | , , , , |
| Sumari: | Title screen The effect of modification of MFI zeolite 1–5 wt.% ZnO activated by plasma on acid and catalytic properties in the conversion of the propane–butane fraction into arenes was investigated. The high-silica zeolites with silicate module 45 were synthesized from alkaline alumina–silica gels in the presence of an ‘X-oil’ organic structure-forming additive. The modification of the zeolite with zinc was carried out by impregnating the zeolite granules in the H-form with an aqueous solution of Zn(NO3)2. The obtained zeolites were characterized by X-ray phase analysis and IR spectroscopy. It is shown that the synthesized zeolites belong to the high-silica MFI zeolites. The study of microporous zeolite-containing catalysts during the conversion of C3-C4 alkanes to aromatic hydrocarbons made it possible to establish that the highest yield of aromatic hydrocarbons is observed on zeolite catalysts modified with 1 and 3% ZnO and amount to 63.7 and 64.4% at 600 °C, respectively, which is 7.7–8.4% more than on the original zeolite. The preliminary activation of microporous zeolites modified with 1–5% ZnO and plasma leads to an increase in the yield of aromatic hydrocarbons from the propane–butane fraction; the maximum yield of arenes is observed in zeolite catalysts modified with 1 and 3% ZnO and activated by plasma, amounting to 64.9 and 65.5% at 600 °C, respectively, which is 8.9–9.5% more than on the initial zeolite. The activity of the zeolite catalysts modified by ZnO and activated by plasma show good agreement with their acid properties. Activation of the zeolites modified by 1 and 3% ZnO and plasma leads to an increase in the concentration of the weak acid sites of the catalyst to 707 and 764 mmol/g in comparison with plasma-inactivated 1 and 3% ZnO/ZKE-XM catalysts at 626 and 572 mmol/g, respectively. |
| Idioma: | anglès |
| Publicat: |
2020
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| Matèries: | |
| Accés en línia: | http://earchive.tpu.ru/handle/11683/64812 https://doi.org/10.3390/molecules25112704 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662260 |
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| 200 | 1 | |a Conversion of the Propane–Butane Fraction into Arenes on MFI Zeolites Modified by Zinc Oxide and Activated by Low-Temperature Plasma |f V. I. Erofeev, S. N. Dzhalilova, M. V. Erofeev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 23 tit.] | ||
| 330 | |a The effect of modification of MFI zeolite 1–5 wt.% ZnO activated by plasma on acid and catalytic properties in the conversion of the propane–butane fraction into arenes was investigated. The high-silica zeolites with silicate module 45 were synthesized from alkaline alumina–silica gels in the presence of an ‘X-oil’ organic structure-forming additive. The modification of the zeolite with zinc was carried out by impregnating the zeolite granules in the H-form with an aqueous solution of Zn(NO3)2. The obtained zeolites were characterized by X-ray phase analysis and IR spectroscopy. It is shown that the synthesized zeolites belong to the high-silica MFI zeolites. The study of microporous zeolite-containing catalysts during the conversion of C3-C4 alkanes to aromatic hydrocarbons made it possible to establish that the highest yield of aromatic hydrocarbons is observed on zeolite catalysts modified with 1 and 3% ZnO and amount to 63.7 and 64.4% at 600 °C, respectively, which is 7.7–8.4% more than on the original zeolite. The preliminary activation of microporous zeolites modified with 1–5% ZnO and plasma leads to an increase in the yield of aromatic hydrocarbons from the propane–butane fraction; the maximum yield of arenes is observed in zeolite catalysts modified with 1 and 3% ZnO and activated by plasma, amounting to 64.9 and 65.5% at 600 °C, respectively, which is 8.9–9.5% more than on the initial zeolite. The activity of the zeolite catalysts modified by ZnO and activated by plasma show good agreement with their acid properties. Activation of the zeolites modified by 1 and 3% ZnO and plasma leads to an increase in the concentration of the weak acid sites of the catalyst to 707 and 764 mmol/g in comparison with plasma-inactivated 1 and 3% ZnO/ZKE-XM catalysts at 626 and 572 mmol/g, respectively. | ||
| 461 | |t Molecules | ||
| 463 | |t Vol. 25, iss. 11 |v [2704, 16 p.] |d 2020 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a MFI zeolite | |
| 610 | 1 | |a modification | |
| 610 | 1 | |a zinc oxide | |
| 610 | 1 | |a plasma activation | |
| 610 | 1 | |a acidity | |
| 610 | 1 | |a propane–butane fraction | |
| 610 | 1 | |a conversion | |
| 610 | 1 | |a arenes | |
| 610 | 1 | |a цеолиты | |
| 610 | 1 | |a модификация | |
| 610 | 1 | |a оксид цинка | |
| 610 | 1 | |a преобразования | |
| 701 | 1 | |a Erofeev |b V. I. |c specialist in the field of oil and gas business |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1946- |g Vladimir Ivanovich |3 (RuTPU)RU\TPU\pers\32197 |9 16197 | |
| 701 | 1 | |a Dzhalilova |b S. N. |c specialist in the field of petroleum engineering |c Assistant of the Department of Tomsk Polytechnic University |f 1990- |g Sofiya Nasibullaevna |3 (RuTPU)RU\TPU\pers\45678 |9 21963 | |
| 701 | 1 | |a Erofeev |b M. V. |c specialist in the field of oil and gas business |c Associate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1975- |g Mikhail Vladimirovich |9 17781 | |
| 701 | 1 | |a Ripenko |b V. S. |g Vasily Sergeevich | |
| 701 | 1 | |a Reschetilowski |b W. P. |g Wladimir Petrovich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа природных ресурсов |b Отделение нефтегазового дела |3 (RuTPU)RU\TPU\col\23546 |
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