Зависимость селективности гидрирования фурфурола в присутствии рутениевых катализаторов от типа их носителя и параметров реакции

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Синтезированы катализаторы на основе наночастиц Ru, нанесенных на следующие носители: наносферический мезопористый фенолформальдегидный полимер; мезопористый цирконосиликат; композитный материал на основе мезопористых углеродных наносфер и цирконосиликата. Катализаторы испытаны в гидрировании фурфурола в воде при температурах 100–250°С и давлении водорода 1–5 МПа. Установлено влияние загрузки катализатора и времени реакции на конверсию и селективность процесса. Показано, что катализатор на основе композитного материала обладает более высокой активностью и селективностью в воднофазном гидрировании фурфурола.

Толық мәтін

Рұқсат жабық

Авторлар туралы

Максим Бороноев

Московский государственный университет имени М. В. Ломоносова

Хат алмасуға жауапты Автор.
Email: maxbv04@gmail.com
ORCID iD: 0000-0001-6129-598X

н.с., химический факультет

Ресей, Москва, 119991

Искандер Шакиров

Московский государственный университет имени М. В. Ломоносова

Email: maxbv04@gmail.com
ORCID iD: 0000-0003-2029-693X

химический факультет

Ресей, Москва, 119991

Екатерина Ролдугина

Московский государственный университет имени М. В. Ломоносова

Email: maxbv04@gmail.com
ORCID iD: 0000-0002-9194-1097

к.х.н., химический факультет

Ресей, Москва, 119991

Юлия Кардашева

Московский государственный университет имени М. В. Ломоносова

Email: maxbv04@gmail.com
ORCID iD: 0000-0002-6580-1082

к.х.н., химический факультет

Ресей, Москва, 119991

Валерий Верченко

Московский государственный университет имени М. В. Ломоносова

Email: maxbv04@gmail.com
ORCID iD: 0000-0002-8000-425X

к.х.н., химический факультет

Ресей, Москва, 119991

Сергей Кардашев

Московский государственный университет имени М. В. Ломоносова

Email: maxbv04@gmail.com
ORCID iD: 0000-0003-1818-7697

к.х.н., химический факультет

Ресей, Москва, 119991

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2. Fig. 1. Isotherms of nitrogen adsorption/desorption (a) and pore size distribution (b) of mesoporous materials.

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3. Fig. 2. Diffractograms of mesoporous materials.

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4. Fig. 3. Micrography (a) and energy dispersion spectrum (b) of a mesoporous composite material based on carbon nanospheres and zirconosilicate.

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5. Fig. 4. Micrographs and size distributions of Ru catalyst nanoparticles deposited on: (a, b) – mesoporous nanospheric polymer; (c, d) – mesoporous zircon silicate; (d, e) is a mesoporous material based on carbon nanospheres and zirconosilicate.

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6. Fig. 5. Zr3d spectra decomposed into components for Ru catalysts deposited on: (a) mesoporous zircon silicate; (b) mesoporous material based on carbon nanospheres and zirconosilicate. (1) – Zr4+; (2) – Zrx+ (x ≤ 3).

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7. Fig. 6. The spectral regions Ru3d and C1s decomposed into components for samples of Ru catalysts applied to: (a) mesoporous material based on carbon nanospheres and zircon silicate; (b) mesoporous zircon silicate; (c) mesoporous nanospheric polymer. C1s (1) – (–C–C–)- and (–C–H)-groups; C1s (2) – (–C–OH)- and (C=O)-groups; C1s (3) – (–SON)-group; Ru3d (1) – doublet from Ru0; Ru3d (2) – doublet from Ru4+.

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8. Fig. 7. IR spectra of adsorbed pyridine on Ru catalysts.

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9. Fig. 8. Conversion of furfural and selectivity of formation of its hydrogenation products depending on temperature on Ru- talizers deposited on: (a) mesoporous nanospheric polymer; (b) mesoporous zircon silicate; (c) mesoporous material based on carbon nanospheres and zircon silicate. * Reaction conditions: 3 MPa H2. 2 h, 50 µl of furfural, 4 mg of catalyst, 2 ml of water. ** Other compounds: 2-methylfuran, tetrahydro-2- methylfuran, tetrahydrofurfural, pentanol, pentanediol-1,4, 3- acetyl-1-propanol, 2-cyclopentenone, 4-gyroxy-2- cyclopentone, 2-furfuryl-5-methylfuran, difurfuryl ether.

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10. Fig. 9. Conversion of furfural and selectivity of formation of its hydrogenation products depending on pressure on Ru catalysts deposited on: (a) mesoporous nanospheric polymer; (b) mesoporous zircon silicate; (c) mesoporous material based on carbon nanospheres and zircon silicate. * Reaction conditions: 170 °C, 2 h, 50 µl of furfural, 4 mg of catalyst, 2 ml of water. ** Others: 2-methylfuran, tetrahydro-2-methylfuran, tetrahydrofurfural, pentanol, pentanediol-1,4, 3-acetyl-1- propanol, 2-cyclopentenone, 4-gyroxy-2-cyclopentenone, 2- furfuryl-5-methylfuran, difurfuryl ether.

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11. Fig. 10. Conversion of furfural and selectivity of formation of its hydrogenation products depending on the mass of the catalyst on Ru catalysts deposited on: (a) mesoporous nanospheric polymer; (b) Mesoporous zircon silicate; (c) mesoporous material based on carbon nanospheres and zirconosilicate. * Reaction conditions: 170°C, 3 MPa H2. 2 h, 50 µl furfural, 2 ml of water. ** Others: 2-methylfuran, tetrahydro-2-methylfuran, tetrahydrofurfural, pentanol, pentanediol-1,4, 3-acetyl-1- propanol, 2-cyclopentenone, 4-gyroxy-2-cyclopentenone, 2- furfuryl-5-methylfuran, difurfuryl ether.

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12. Fig. 11. Conversion of furfural and the selectivity of the formation of its hydrogenation products depending on the reaction time on Ru catalysts deposited on: (a) mesoporous nanospheric polymer; (b) Mesoporous zircon silicate; (c) mesoporous material based on carbon nanospheres and zirconosilicate. * Reaction conditions: 170 °C, 3 MPa H2, 50 µl of furfural, 4 mg of catalyst, 2 ml of water. ** Others: 2-methylfuran, tetrahydro-2-methylfuran, tetrahydrofurfural, pentanol, pentanediol-1,4, 3-acetyl-1- propanol, 2-cyclopentenone, 4-gyroxy-2-cyclopentenone, 2- furfuryl-5-methylfuran, difurfuryl ether.

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