Development of a new continuous process for the production of 3,5-dimethylpiperidine

Tao Lin; Xiaoxun Ma

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Development of a new continuous process for the production of 3,5-dimethylpiperidine

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Development of a new continuous process for the production of 3,5-dimethylpiperidine
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 374-383(2022)
- Affiliations：
  
  1. School of Chemical Engineering, Northwest University,Xi’an,China,710069
  2. Kaili Catalyst & New Materials Co., Ltd.,Xi’an,China,710201
  3. Chemical Engineering Research Center of the Ministry of Education (MOE) for Advanced Use Technology of Shanbei Energy,Xi’an,China,710069
  4. Shaanxi Research Center of Engineering Technology for Clean Coal Conversion,Xi’an,China,710069
  5. Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi,Xi’an,China,710069
  6. International Scientific and Technological Cooperation Base of the Ministry of Science and Technology (MOST) for Clean Utilization of Hydrocarbon Resources,Xi’an,China,710069
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Tao Lin, Xiaoxun Ma. Development of a new continuous process for the production of 3,5-dimethylpiperidine[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 374-383.
DOI：

Tao Lin, Xiaoxun Ma. Development of a new continuous process for the production of 3,5-dimethylpiperidine[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 374-383. DOI：

摘要

Abstract

This paper developed a new clean continuous process for the hydrogenation of 3

5-dimethylpyridine (DPY) to 3

5-dimethylpiperidine (DPI) without solvent. A series of Ru/C catalysts were prepared by impregnation method

which were characterized by the BET

ICP

CO chemisorptions

XRD

SEM

EDS

TEM and TG. The effect of active species

catalyst support

reaction temperature and pressure on the catalytic performance was investigated. The influence of internal and external diffusion in the trickle-bed reactor (TBR) was basically eliminated by adjusting the particle size and dosage of the Ru/C catalyst. The reaction performance of the hydrogenation of DPY to DPI in the TBR and kettle reactor (KR) was compared

and the superiority of the TBR process was analyzed. The results show that this new continuous process developed in this study is an efficient way to realize the hydrogenation of DPY to DPI

and has a good industrial application prospect.

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