Calorimetric Estimation Employing the Unscented Kalman Filter for a Batch Emulsion Polymerization Reactor

Rincón, Franklin D.; Esposito, Marcelo; Araújo, Pedro Henrique Hermes de; Sayer, Cláudia; Roux, G.

doi:10.1002/mren.201200044

Cited by 17 publications

(10 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different observer methodologies have been applied to estimate the reaction rate in homogeneous chemical reactors described by ODEs, such as Kalman filters, high gain observers for copolymerization reactions and receding horizon observers for a terpolymerization reaction . As the stop flow reactor model is discretized to give a set of ODEs, such observers can also be considered here.…”

Section: High Gain Observersmentioning

confidence: 99%

A 2‐D observer to estimate the reaction rate in a stopped flow fixed bed reactor for gas phase olefin polymerization

et al. 2014

View full text Add to dashboard Cite

A two-dimensional high gain observer has been constructed to estimate the reaction rate parameters in a laboratory scale stopped flow fixed bed reactor for gas phase ethylene polymerization. The observer is based on the heat balances of a validated model of the reactor and the measured variable is the outlet temperature of the fixed bed. To create an observable system of equations, the polymerization rate is considered in two parts, an activation energy term and a lumped parameter. The effective radial conductivity in the fixed bed and the heat-transfer coefficient at the wall are considered separately. The polymerization rate is calculated from the observer results and is in good agreement with the measured data and calculated values.

show abstract

Section: High Gain Observersmentioning

confidence: 99%

A 2‐D observer to estimate the reaction rate in a stopped flow fixed bed reactor for gas phase olefin polymerization

et al. 2014

View full text Add to dashboard Cite

show abstract

“…This method (calorimetric) has been employed successfully in a variety of polymerization reactions [4][5][6][7][8][9]. In a recent report [9], the calorimetric method has been used for the monitoring of ethylene polymerization via metallocenes in a laboratory reactor.…”

Section: Introductionmentioning

confidence: 97%

On-Line Calorimetry in the Ethylene Coordination Polymerization

Infante¹,

Saldívar‐Guerra²,

Pérez‐Camacho³

et al. 2014

MRS Proc.

View full text Add to dashboard Cite

The kinetic performance of metallocene type catalysts as well as their instantaneous activity is determined on line by two independent methods in the semi-batch polymerization of ethylene via metallocenes. On the basis of first-principles, both methods are described and guidelines for their implementation at a laboratory scale reactor are offered. Polymerization tests were conducted with two heterogenized metallocene catalysts showing that the direct method (based on ethylene flow measurement) and also the calorimetric method (based on energy balances) reported equivalent high quality information. The calorimetric method here developed can be readily used by the chemical practitioner as the notions and tools required for its implantation are easily grasped. It is noted that the calorimetric method has the advantage of requiring a low cost instrumentation (only thermocouples) whereas the direct method needs a relatively more sophisticated equipment (mass flow meter).

show abstract

“…This method (calorimetric) has been employed successfully in a variety of polymerization reactions. [4][5][6][7][8][9] Rincón et. Al.…”

Section: Introductionmentioning

confidence: 98%

Ethylene Polymerization via Metallocenes: An Experimental Study

et al. 2015

View full text Add to dashboard Cite

An experimental study oriented to gather kinetic modelling data in the ethylene polymerization via metallocenes is reported. Also is illustrated the employment of two methods for determination of kinetic behavior and the instantaneous activity of ZieglerNatta catalysts in the slurry polymerization of ethylene. The theoretical basis for both methods is described as well as the required instrumentation for its implantation at a laboratory level. An experimental program of polymerization with two different metallocenic systems was executed, showing that the direct (measurement of ethylene flow) as well as the calorimetric method (based on energy balances) give equivalent high quality information on the kinetic performance of the catalyst.

show abstract

Calorimetric Estimation Employing the Unscented Kalman Filter for a Batch Emulsion Polymerization Reactor

Cited by 17 publications

References 44 publications

A 2‐D observer to estimate the reaction rate in a stopped flow fixed bed reactor for gas phase olefin polymerization

A 2‐D observer to estimate the reaction rate in a stopped flow fixed bed reactor for gas phase olefin polymerization

On-Line Calorimetry in the Ethylene Coordination Polymerization

Ethylene Polymerization via Metallocenes: An Experimental Study

Contact Info

Product

Resources

About