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Chemistry/Pharma/Food | Multi-Stage Production Processes | Polymerization

Efficient realization of many measuring points with only one spectrometer - Spectroscopic online monitoring of complex manufacturing processes illustrated by the example of polymerization

In large production plants, production processes often have to be monitored with many measuring points

Whether it is medicine, food, household appliances or clothing - behind the final product frequently stands a complex, multi-stage and strictly regulated manufacturing processes. In large industrial production plants, raw materials are processed in several steps to produce a wide variety of end products. This is the case, for example, in the production of plastic in its various forms. Due to increasing requirements in terms of efficiency, output and product quality, several measuring points at different reactors or production lines often have to be continuously monitored during the manufacturing process. Precise and reliable measurement data form the basis for optimum process control.

Process Control

Challenge

Cost-efficient process control for multi-stage production processes

Area of Application

Online installations with multiple measuring points for transmission or transflectance measurements

 

 

Scope of Application

  • Multi-Stage Production Processes
  • Chemical Industry
  • Pharmaceutical Industry
  • Food industry

Method

  • Process Analytical Technology (PAT)
  • NIR Spectroscopy
  • Real-Time Measurement
  • Online Measurement

Solution

  • NIR-Spectroscopy

  • Online/Inline

  • Real-Time Measurement

Benefits

  • Reduction of investment costs for installation of several probes or measurement cells
  • Consistently good performance across all channels
  • Modular Design: Subsequent expansion possible
  • Simple integration through provided software

The Challenge

Monitoring of the entire process chain must be precise and cost-efficient at the same time

Industrial companies with a multi-stage manufacturing process must closely monitor many spatially distant measuring points while keeping the costs per measuring point as low as possible.

For reliable analysis of liquid components in real time, the use of online analysis technology has proven its worth. With the aid of optical components, such as a process probe or measurement cell, precise measurement data is transmitted to a spectrometer via fiber optics and evaluated.

The investment costs for these measurement systems can be very high, especially through the acquisition of several spectrometers. Furthermore, the calibration, operation, and maintenance of multiple instruments means significantly more work.

The Application

Multi-stage production processes are common in the manufacture of plastics

Complex production processes including several process steps can often be found in manufacturing companies in the chemical, pharmaceutical and food industry. In the process of producing various plastics for everyday use, for example polymerization, chemical reactions take place at short intervals and must be closely monitored.

Polymerization describes the process by which small units (monomers) are chained together through repeated reaction steps to form polymers - the synthetically produced form of plastic.

Initiators, fillers and other components added to the monomers during polymerization, have an influence on the subsequent properties of the plastic, such as pliability.

Example of a polymerisation

Through rapid recognition of the reaction progress, a polymerization can be optimally controlled

For optimum process control and high efficiency, it is particularly important to monitor the reaction process in real time using online measurement technology to determine how fast the reaction progresses and when the polymerization of a batch is completed. This can often be best achieved by means of NIR spectroscopy.

NIR spectroscopic measurement methods can also help to monitor the process during the further processing of polymers into numerous finished products, such as synthetic fibers. Other measurement points can involve solvent recovery or addition of additives to give plastics specific properties.

It is therefore not unusual to find multiple measuring points in a manufacturing process, each of them equipped with its own spectrometer. Consequently, the costs per measuring point can take on larger proportions.

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Contact/Inquiry

Hellma USA Inc.
80 Skyline Drive
11803 Plainview, NY
United States

Phone: +1 5169 3908 88
info.us@hellma.com
http://www.hellmausa.com

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Complete Application Note

Spectroscopic Online Monitoring of Complex Manufacturing Processes Illustrated by the Example of Polymerization (Application Note EN)

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