Model based operation of emulsion polymerization reactors with evaporative cooling: Application to vinyl acetate homopolymerization

Arora, Sachin; Gesthuisen, R.; Engell, Sebastian

doi:10.1016/j.compchemeng.2006.07.011

Cited by 14 publications

(13 citation statements)

References 24 publications

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“…Bulk polymerized methacrylates are widely used as materials in dentistry [34], but when polymerized in solution, they can be used as varnishes [35], and suspension polymerization results in acrylic beads [36]. Emulsion polymerization has been an important and widely used process for the manufacture of polymer products, e.g., paints, adhesives, coatings, and binders [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54]. One of the advantages of this process is the possibility of obtaining polymers of high molecular weight at a reasonable rate of reaction.…”

Section: Polymerization Techniquesmentioning

confidence: 99%

“…From an industrial perspective, one of the major objectives in the operation of emulsion polymerization processes is that of a faster and safer operation with consistent quality. Th e polymerization reaction proceeds as a classical double bond addition reaction initiated via a free-radical mechanism [37][38][39]. In order to obtain well-defi ned latex, it is important to optimize the polymerization process with regard to emulsifi ers, initiator, and monomers.…”

Section: Polymerization Techniquesmentioning

confidence: 99%

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Environmentally‐Friendly Acrylates‐Based Polymer Latices

Shukla¹,

Rai

2014

Advanced Materials for Agriculture, Food, and Environmental Safety

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Acrylic copolymers have achieved prime importance in various avenues of industrial application such as adhesive in packaging and construction, binder and stabilizer in textiles, base coat in leather, topcoat in fl oor polish, pigment binder in paper industries, etc. Acrylic resins are generally known to have superior exterior durability and weather resistance compared to other organic binders/fi lm-formers commonly used in surface coatings. Th e emulsion polymerization of acrylic monomers provides a good combination of performance properties required in fi lm formation. Th ese properties depend on the copolymer composition, particle size, molecular weight, glass transition temperature (Tg), morphology of the latex particles, etc.In this chapter, the reaction components and polymerization process conditions that aff ect the inherent characteristics of the polymers are presented. Th ere is a discussion of the incorporation of comonomer, which would lead to an improvement in the fl exibility of fi lms produced along with adhesion, gloss, hardness, solvent resistance, water resistance, etc. Also, there is a recently developed successful approach for achieving balanced properties which involves the copolymerization of fi lm-forming monomers like acrylate and methacrylates with crosslinkable monomers.

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Section: Polymerization Techniquesmentioning

confidence: 99%

Section: Polymerization Techniquesmentioning

confidence: 99%

Environmentally‐Friendly Acrylates‐Based Polymer Latices

Shukla¹,

Rai

2014

Advanced Materials for Agriculture, Food, and Environmental Safety

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“…Asua suggested utilizing the heuristic knowledge of plant operators to build an optimization system based on fuzzy logic. In a theoretical study not validated by experimental data Arora et al reported 27% reduction in batch time for production of polyvinyl acetate when employing the evaporative cooling to increase the cooling capacity of an industrial‐scale reactor. Polymer particle size distribution in emulsion polymerization has also been the subject of optimization studies …”

Section: Introductionmentioning

confidence: 99%

Bringing the On‐Line Control and Optimization of Semibatch Emulsion Copolymerization to the Pilot Plant

Zubov

Naeem²,

Hauger

et al. 2017

Macro Reaction Engineering

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Due to hardening competition and increased focus on resource efficiency, efforts are made to develop advanced industrial optimization and control systems with the goal to shift the (semi‐)batch production from recipe‐based to a state‐based approach. This study illustrates the steps needed for the implementation of optimization and on‐line control of semibatch emulsion copolymerization involving the development of process model, its validation and connection with control software, and the realization at pilot plant scale. The process model must be fast and robust enough to provide estimation of the process trajectory reliably and quickly. Moreover, in connection with nonlinear model predictive control (NMPC), the model has to be able to learn from the process and to update parameter values in real time, e.g., due to change of reactor jacket heat transfer. The Cybernetica CENIT software is employed for NMPC. The industrial pilot‐scale semibatch emulsion copolymerization of four comonomers (two of them water soluble) is used for the demonstration of NMPC functionality for: (i) reactor temperature control, (ii) minimization of batch time while preserving product quality, and (iii) minimization of batch duration with desired simultaneous shift in product quality.

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“…paints, adhesives, coatings, and binders [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. One of the advantages of this process is the possibility to obtain polymers of high molecular weight at high polymerization rates.…”

Section: Introductionmentioning

confidence: 99%

“…From an industrial perspective, one of the major objectives in the operation of emulsion polymerization processes is that of faster and safer operation with consistent quality. The polymerization reaction proceeds as a classical double bond addition reaction initiated via a free-radical mechanism [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Kinetics of two-step emulsion polymerization of poly(n-butyl methacrylate)/poly(methyl methacrylate) polymer networks

Zhu

2008

Fibers Polym

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Poly(n-butyl methacrylate)/poly(methyl methacrylate) polymer networks were synthesized by two-step emulsion polymerization with sodium dodecylsulfonate and polyoxyethylene nonylphenolether as the emulsifier, distilled water as the continuous medium, and potassium persulfate as the initiator. The kinetics of two-step emulsion polymerization was studied. Effects of emulsifier concentration, initiator concentration, and polymerization temperature on monomer conversion and polymerization rate were investigated in detail. Experimental data indicate that both the steady state polymerization rate and monomer conversion increase with the augment of emulsifier concentration, initiator concentration, or reaction temperature.

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Model based operation of emulsion polymerization reactors with evaporative cooling: Application to vinyl acetate homopolymerization

Cited by 14 publications

References 24 publications

Environmentally‐Friendly Acrylates‐Based Polymer Latices

Environmentally‐Friendly Acrylates‐Based Polymer Latices

Bringing the On‐Line Control and Optimization of Semibatch Emulsion Copolymerization to the Pilot Plant

Kinetics of two-step emulsion polymerization of poly(n-butyl methacrylate)/poly(methyl methacrylate) polymer networks

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