Synthesis of Metal-on-Carbon Catalysts Based on Polyvinyl Chloride and Their Investigation in the Liquid-Phase Hydrogenation of n-Pentanal | Sciact - CRIS-система Института катализа

Synthesis of Metal-on-Carbon Catalysts Based on Polyvinyl Chloride and Their Investigation in the Liquid-Phase Hydrogenation of n-Pentanal Научная публикация

Журнал

Research on Chemical Intermediates
ISSN: 0922-6168 , E-ISSN: 1568-5675

Вых. Данные

Год: 2025, Том: 51, Страницы: 2305–2330 Страниц : 26 DOI: 10.21203/rs.3.rs-5370902/v1

Ключевые слова

Polyvinyl chloride; Porous cobalt-carbon composite materials; Palladium catalysts; n-pentanal hydrogenation

Авторы

Chumachenko Yu.A. ¹ , Saybulina E.R. ¹ , Muromtsev I.V. ¹ , Gulyaeva T.I. ¹ , Trenikhin M.V. ¹ , Gorbunova O.V. ¹ , Raiskaya E.A. ¹ , Belskaya O.B. ¹

Организации

1	Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis, Neftezavodskaya St., 54, 644040 Omsk, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

FWUR-2024-0039

A porous carbon material (PCM) and series of porous cobalt-carbon composite materials (PCoCCMs) with different metal content have been synthesized by dehydrochlorination of polyvinyl chloride and mixtures of Co(NO3)2 with polyvinyl chloride, respectively, followed by carbonization and activation in CO2 flow at temperatures of 673 and 1173 K. These materials were used to obtain supported palladium catalysts. The effect of cobalt content on catalytic performance in the reaction of liquid-phase hydrogenation of n-pentanal was analyzed. It was found that all Pd/PCoCCMs samples with cobalt content of 18.5–64.2 wt%, with a minimum micropore number of 52–66% and that of surface acidic groups of 0.05–0.15 mmol g− 1 are more active than the Pd/PCM sample with a maximum micropore number of 88% and that of surface acidic groups of 0.30 mmol g− 1. The highest n-pentanal conversion of 96 wt% and 70 wt% selectivity to 1 − pentanol were obtained for a catalyst with cobalt content of 25.3 wt% at reaction time of 6 h, temperature of 353 K, and hydrogen pressure of 1.0 MPa. A multi-cycle experimental study of the catalyst showed its reduced activity and increased selectivity to the products of acetalization, self-condensation and etherification. In general, the results obtained open up prospects for creating catalysts based on the available synthetic organic raw material.

Chumachenko Y.A. , Saybulina E.R. , Muromtsev I.V. , Gulyaeva T.I. , Trenikhin M.V. , Gorbunova O.V. , Raiskaya E.A. , Belskaya O.B.
Synthesis of Metal-on-Carbon Catalysts Based on Polyvinyl Chloride and Their Investigation in the Liquid-Phase Hydrogenation of n-Pentanal
Research on Chemical Intermediates. 2025. V.51. P.2305–2330. DOI: 10.21203/rs.3.rs-5370902/v1 OpenAlex ЦНХТ ID

Поступила в редакцию:	1 нояб. 2024 г.
Принята к публикации:	18 мар. 2025 г.
Опубликована online:	5 апр. 2025 г.
Опубликована в печати:	1 мая 2025 г.

OpenAlex:	W4404523783
ЦНХТ ID:	4421

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