Thermal oxidation – even used in tablet production

Aug 26, 2021

Dürr air pollution control systems are used in many industrial applications around the world, including coating tablets in the pharmaceutical production sector.

Producing pharmaceuticals, specifically manufacturing tablets, involves a number of different processes from coating the tablets to producing the packaging. These processes frequently use solvents or generate harmful compounds when materials are bonded. Versatile air pollution control systems from Dürr are the perfect choice for applications in this sector.

A multitude of products from the Dürr Clean Technology Systems (CTS) division find use in the most diverse industries. Besides meeting applicable environmental directives and laws, the range of air pollution control systems lend themselves to tailoring for specific production operations and customer requirements in the interest of sustainable, efficient and economical industrial production.

Coating, printing, laminating

Processes such as tablet manufacturing can offer multiple applications for air pollution control. Both the tablet coating and packaging manufacturing processes require several air pollution control steps.

Inks made with solvents begin emitting solvent-laden exhaust air the moment they are manufactured in ink and paint factories, and this continues when they are mixed on site and, finally, when they are used to print and varnish the packaging. Most packaging is additionally refined with a paint coating or by combining several dissimilar materials into a composite, for example. Aluminum foil is affixed on the plastic blister packaging in this lamination process.

These production processes now generally require the use of air pollution control systems. High-performance regenerative thermal oxidation is the method of choice and the most technically advanced approach to removing organic pollutants produced in this and many other industries.

Air pollution control systems from Dürr are used successfully all over the world along the steps mentioned above - from ink and paint manufacturers to the packaging industry as well as original and generic tablet producers. Please do not hesitate to contact us for detailed information on the individual areas.

Air pollution control along the tablet and packaging production process

Functional principle of Oxi.X – regenerative thermal oxidation

During regenerative thermal oxidation (RTO), exhaust air contaminated with organic pollutants is fed through a regenerative heat exchanger with an extremely large surface area. The exhaust air heats up, emerging from the heat exchanger at a temperature close to the required reaction temperature. Nearly all of the pollutants are then converted into harmless substances in the downstream combustion chamber. The purified production exhaust air is now fed through another heat exchanger, where it releases more than 95% of its thermal energy and completes the regenerative circuit.

Energy-efficient technologies achieve a purification level exceeding 99% while keeping operating costs down. Additional heat recovery options can cycle energy from the oxidized pollutants back into the production process for drying and heating, providing the added benefit of air pollution control as an energy source. Low-maintenance, flexible Oxi.X RTO systems from Dürr are suitable for a host of different applications and designed to run reliably at low operating costs year after year.

Decker, Dietmar Senior Sales Manager Surface Treatment

Dietmar Decker, Senior Sales Manager, Clean Technology Systems, Dürr Systems AG

We are proud of our broad product portfolio in environmental technology. Globally, our established systems control air pollution while protecting our environment, conserving resources and permanently reducing CO2 and VOC emissions. Dürr is a key player in achieving a future worth living in our globalized world.

CTS, Dürr’s Clean Technology Systems division

With over 10,000 systems installed worldwide, Dürr is contributing significantly to environmental protection. Each of them minimizes production-related pollutants, serving to reconcile both economic and ecological goals. High-tech, resource-saving solutions are the way forward to a climate-neutral future.
As reliable partner, Dürr provides air pollution control solutions for sectors as diverse as the

chemical industry
pharmaceutical industry
food industry
textile industry
printing and coating industry
wood industry.

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