Determination of the clogging time for continuous emulsion copolymerization in a tubular reactor using distributed optical fiber sensors

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design Pub Date : 2025-02-11 DOI:10.1016/j.cherd.2025.02.012

Maria Klippert, Werner Pauer

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引用次数: 0

Abstract

A non-intrusive method for fouling monitoring using DOFS (Distributed Optical Fiber Sensors) in tubular reactors is presented. The hot spot, caused by the exothermal emulsion polymerization reaction of vinyl acetate and vinyl neodecanoate, was used as a marker to track the fouling progression during the reaction. Due to fouling, the reactor volume was constricted, causing the hot spot to migrate further downstream. This migration was spatially and temporally resolved as a hot spot position-time plot and used describe the time of clogging using mathematical models. From these models, it could be deduced, that the fouling influencing the hot spot is best described by an even constriction of the entire tubular reactor. The mathematical model was able to determine the time of clogging with an accuracy of 0.89–1.28 (with 1 being in perfect agreement with the measured clogging time), starting from 30 min of reaction time. This time is equivalent to 12 % of the entire time of reaction from start to clogging.

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来源期刊

Chemical Engineering Research & Design 工程技术-工程：化工

CiteScore

6.10

自引率

7.70%

发文量

623

审稿时长

42 days

期刊介绍： ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.