Kerou Wan, Jie Cheng, Li Zhang, Tao Lin, Mingming Gao, Yuecun Wang, Tong Mou, Yuefeng Li
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Ru Distribution and Activity of Ru/C Catalyst for Continuous Hydrogenation of 3,5-dimethylpyridine
3,5-Dimethylpiperidine (DPI) is a crucial fine chemical used in the pesticide industry. The selective catalytic hydrogenation of DPI is of significant importance for efficient and sustainable production. In this study, we developed a novel, clean continuous process using a trickle bed reactor (TBR) for the hydrogenation of 3,5-dimethylpyridine (DPY) to DPI. This process offers enhanced efficiency, stability, and high-quality DPI production. Via detailed investigation of the impregnation solution pH, along with the distribution and electronic state of Ru species on the Ru/C catalyst, we have revealed the key factors for influencing catalytic performance. The findings provide valuable insights for optimizing catalyst properties, leading to the successful application of Ru/C catalysts in the continuous hydrogenation of pyridine derivatives, including DPY. This work holds significant potential for efficient large-scale continuous production of DPI and related compounds.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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