Data-Driven Optimization of an Industrial Batch Polymerization Process Using the Design of Dynamic Experiments Methodology

2020 ◽  
Vol 59 (33) ◽  
pp. 14868-14880
Author(s):  
Christos Georgakis ◽  
Swee-Teng Chin ◽  
Zhenyu Wang ◽  
Philippe Hayot ◽  
Leo Chiang ◽  
...  
Keyword(s):  
Data Driven ◽  
Polymerization Process ◽  
Industrial Batch ◽  
Dynamic Experiments

Application of a grey-box modelling approach for the online monitoring of batch production in the chemical industry

2020 ◽  
Vol 68 (7) ◽  
pp. 582-598
Author(s):  
Ala E. F. Bouaswaig ◽  
Keivan Rahimi-Adli ◽  
Matthias Roth ◽  
Alireza Hosseini ◽  
Hugo Vale ◽  
...  
Keyword(s):  
Batch Processes ◽  
Polymerization Process ◽  
Monitoring And Control ◽  
Continuous Processes ◽  
Model Based ◽  
Modeling Approach ◽  
Industrial Batch ◽  
Laboratory Reactor ◽  
Interest In Research ◽  
And Control

AbstractModel-based solutions for monitoring and control of chemical batch processes have been of interest in research for many decades. However, unlike in continuous processes, in which model-based tools such as Model Predictive Control (MPC) have become a standard in the industry, the reported use of models for batch processes, either for monitoring or control, is rather scarce. This limited use is attributed partly to the inherent complexity of the batch processes (e. g., dynamic, nonlinear, multipurpose) and partly to the lack of appropriate commercial tools in the past. In recent years, algorithms and commercial tools for model-based monitoring and control of batch processes have become more mature and in the era of Industry 4.0 and digitalization they are slowly but steadily gaining more interest in real-word batch applications. This contribution provides a practical example in this application field. Specifically, the use of a grey-box modeling approach, in which a multiway Projection to Latent Structure (PLS) model is combined with a first-principles model, to monitor the evolution of a batch polymerization process and predict in real-time the final batch quality is reported. The modeling approach is described, and the experimental results obtained from an industrial batch laboratory reactor are presented.

Moving average PLS soft sensor for online product quality estimation in an industrial batch polymerization process

2009 ◽  
Vol 19 (3) ◽  
pp. 520-529 ◽  
Author(s):  
Pierantonio Facco ◽  
Franco Doplicher ◽  
Fabrizio Bezzo ◽  
Massimiliano Barolo
Keyword(s):  
Product Quality ◽  
Moving Average ◽  
Soft Sensor ◽  
Polymerization Process ◽  
Quality Estimation ◽  
Industrial Batch

Run-to-Run Adaptation of a Semiadiabatic Policy for the Optimization of an Industrial Batch Polymerization Process

2004 ◽  
Vol 43 (23) ◽  
pp. 7238-7242 ◽  
Author(s):  
G. François ◽  
B. Srinivasan ◽  
D. Bonvin ◽  
J. Hernandez Barajas ◽  
D. Hunkeler
Keyword(s):  
Polymerization Process ◽  
Industrial Batch

A New 1000kv Electron Microscope

1969 ◽  
Vol 27 ◽  
pp. 100-101
Author(s):  
J.L. Williams ◽  
K. Heathcote ◽  
E.J. Greer
Keyword(s):  
Electron Microscope ◽  
Direct Observation ◽  
High Voltage ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Specimen Thickness ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
Dynamic Experiments ◽  
Conventional Instrument

High Voltage Electron Microscope already offers exciting experimental possibilities to Biologists and Materials Scientists because the increased specimen thickness allows direct observation of three dimensional structure and dynamic experiments on effectively bulk specimens. This microscope is designed to give maximum accessibility and space in the specimen region for the special stages which are required. At the same time it provides an ease of operation similar to a conventional instrument.

A tilting high temperature gas reaction chamber for the JEM 7A T.E.M.

1978 ◽  
Vol 36 (1) ◽  
pp. 70-71
Author(s):  
Brian L. Rhoades
Keyword(s):  
Cross Section ◽  
Reaction Chamber ◽  
Objective Lens ◽  
Reduced Cross Section ◽  
Cross Sectional ◽  
Structural Investigations ◽  
Transmission Electron ◽  
Dynamic Experiments ◽  
Successful Design ◽  
Thermocouple Junction

A gas reaction chamber has been designed and constructed for the JEM 7A transmission electron microscope which is based on a notably successful design by Hashimoto et. al. but which provides specimen tilting facilities of ± 15° aboutany axis in the plane of the specimen.It has been difficult to provide tilting facilities on environmental chambers for 100 kV microscopes owing to the fundamental lack of available space within the objective lens and the scope of structural investigations possible during dynamic experiments has been limited with previous specimen chambers not possessing this facility.A cross sectional diagram of the specimen chamber is shown in figure 1. The specimen is placed on a platinum ribbon which is mounted on a mica ring of the type shown in figure 2. The ribbon is heated by direct current, and a thermocouple junction spot welded to the section of the ribbon of reduced cross section enables temperature measurement at the point where localised heating occurs.

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