A novel process for the synthesis of unsaturated polyester

M.R. Shah, E. Zondervan, M.L. Oudshoorn, A.B. Haan, de

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    9 Citations (Scopus)
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    Abstract

    Traditionally polyester production is done in a batch reactor equipped with a separation column for a batch distillation. A promising alternative for the intensification of this process is reactive distillation. The aim of this paper is to study the conceptual design of reactive distillation and to find out whether reactive distillation is potentially interesting compared to batch reactor process. Therefore, a reactive distillation model is developed and sensitivity analysis is used to obtain the design and operational parameters for the reactive distillation process. These parameters are the required number of stages, required residence time, feed ratio, reflux ratio and temperature of feed stream. The model predicts the polymer attribute, isomerization and saturation composition of the polymer in the range of industrial polyester production data. The simulation study shows that the total production time of polyester in a continuous reactive distillation system is reduced from 12 h to 1.5–2 h compared to the industrial batch reactor process. The equilibrium conversion is also raised by 7% compared to the conventional process. The model demonstrated that reactive distillation has the potential to intensify the process by factor of 6–8 in comparison to the batch reactor.
    Original languageEnglish
    Pages (from-to)747-756
    Number of pages9
    JournalChemical Engineering and Processing : Process Intensification
    Volume50
    Issue number8
    DOIs
    Publication statusPublished - 2011

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