期刊
PROCESSES
卷 9, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/pr9030479
关键词
glycerol; propanediol; trickle bed reactor; mass transfer coefficients
资金
- Universidad del Norte
This paper discusses the importance of propylene glycol as well as the simulation and dimensioning of a trickle bed reactor. The study found that adding mass transfer to the model significantly improves glycerol conversion rates.
Propylene glycol, also known as 1,2 propanediol, is one of the most important chemicals in the industry. It is a water-soluble liquid, considered by the U.S. Food and Drug Administration as safe to manufacture consumer products, including foodstuffs, medicines, and cosmetics. This chemical has essential properties, such as solvent, moisturizer, or antifreeze, in addition to a low level of toxicity. This paper aims to present the selection, simulation, and dimensioning of a trickle bed reactor at a laboratory scale. The sizing was validated with other authors. Two predictive models have been considered for reactor modeling, intrinsic kinetics and coupled intrinsic kinetics, along with mass transfer equations and the wetting of the catalyst particles. The model was implemented using Aspen Custom Modeler(R) (20 Crosby Dr. Bedford, MA 01730, EE. UU.) to study the reactor behavior in terms of conversion. The results show the profiles of different variables throughout the reactor and present higher glycerol conversion when mass transfer is added to the model.
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