Marabu utilizes dynamic exhaust air purification concept from Dürr CTS to Cut Gas Consumption by Over 50%
07 April 2026: Printing ink manufacturer Marabu has completely modernized its emission treatment system at its Tamm, Germany facility, according to an announcement by Dürr CTS. The system, implemented by Dürr CTS, combines concentration and recuperative thermal oxidation with a multi-stage, load-dependent control strategy. In January, the system operated in optimized mode approximately 80 percent of the time, reducing gas consumption by more than half compared to conventional continuous operation.
The paint and printing ink manufacturer Marabu is currently modernizing its production facilities with a focus on sustainability, efficiency, and productivity. Part of this effort involves upgrading its air pollution control system.
Marabu manufactures printing inks and liquid coatings for industrial applications. The expansion and modernization of its production facilities were expected to increase the volume of exhaust air by a quarter, to up to 20,000 standard m³ per hour.
Marabu therefore opted for a new plant design from Dürr CTS that ensures compliance with emissions regulations, increases capacity, and significantly reduces energy costs.
The unique feature lies in the operating mode. The technical design of the new system is well established in the industry: concentration followed by recuperative thermal oxidation. The Sorpt.X CD rotary adsorber concentrates the solvents into a reduced flow rate, which is then fed into the Oxi.X TR recuperative thermal oxidizer. A downstream heat exchanger typically uses the process heat to preheat the small volume of desorption air.
The unique feature of the new system lies in its operating mode. “We no longer generally operate at full load but instead adjust the thermal output to the actual pollutant load. To do this, sensors continuously measure the actual solvent concentration. This intelligent control system offers enormous potential for long-term energy and operating cost savings,” explains Ralf Brenner, Sales Manager at Dürr CTS.
Depending on the measured solvent concentration, the system switches between normal and optimized operation.
“The initial evaluations show that performance, cost-effectiveness, and environmental protection can be combined,” says Jürgen Schwarz, Plant Manager for Tamm and Bietigheim-Bissingen at Marabu. “We meet the emission requirements, have no odor nuisance, and our energy consumption has dropped significantly.”
In normal operation, the system operates with a higher desorption air volume to ensure stable oxidation conditions, even under increasing load. At low solvent concentrations, the system switches to optimized operation with approximately 60 percent less desorption air. As a result, the thermal oxidation system heats a significantly smaller volume flow, reducing gas consumption accordingly.
For Marabu, the new exhaust air treatment system is a key component of its production modernization. It significantly reduces emissions and energy consumption and demonstrates that the modernization of an existing plant can be implemented in a way that makes both ecological and economic sense.
https://www.marabu-inks.com
