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VOC Exhaust Gases Treatment and Energy Recovery Systems

OLPIDÜRR, the Italian subsidiary of the Dürr Group, manufactures painting, industrial cleaning and air abatement systems.

Thanks to a full range of products together with extensive experience, and supported by Dürr’s worldwide network, OLPIDÜRR operates directly in several countries.

In partnership with our customers we offer up-to-date technology for every single step of the project, including feasibility studies, engineering, construction and assembly, system start-up, personnel training, production start, and after-sales service.

Depending on customer requirements, OLPIDÜRR can offer customised solutions that include proven project planning and management, experienced engineers, and a reliable network of suppliers.

VOC abatement from exhaust gases and waste liquid

The Dürr business unit Environmental and Energy Systems (EES) is a global leader in the design and construction of systems for VOC abatement from exhaust gases and waste liquid with high concentrations of organic compounds, especially in the chemical, pharmaceutical and petrochemical industries.

The EES department has been also involved in the production of systems for several sectors, such as printing and coating, automotive, wood, and composite material.

The business unit EES Dürr, with more than 40 years’ experience, has realised over 4,000 systems in 40 different countries; in particular, it has realised over 1,500 ECOPURE® RTO, 1,200 ECOPURE TAR , 300 ECOPURE KAR / RCO, 300 ECOPURE KPR and 80 ECOPURE VAR systems.

Systems for exhaust gases treatment and/or liquid waste

For over 40 years Dürr environmental protection technologies have been a reference point for economically and ecologically optimal reduction of emissions and effluents in different processes and industries. The main equipment we supply to the pharmaceutical and chemical industry is as follows.

Regenerative thermal oxidisers

ECOPURE RTO regenerative thermal oxidisers are mainly installed in chemical and pharmaceutical industries, and the printing and coating sectors, where exhausted gases contain medium or low concentrations of VOCs.

Autothermal condition is reached with VOC concentrations close to 2g/Nm³ (depending on the enthalpy of combustion of VOCs). In this case auxiliary fuel is not needed for the burners and the process becomes a flameless thermal oxidation. In cases where the concentration is higher, excess energy can be recovered and used for other purposes, with an external heat exchanger.

In the chemical and pharmaceutical industries, where streams can be much more complex, ECOPURE RTO systems are provided with special technical devices that allow operation even in the presence of high concentrations of halogenated, sulphuric and phosphorus organic compounds.

Thermal oxidisers for complex gas and liquid streams

ECOPURE VAR thermal oxidisers are mainly used in the chemical, petrochemical and pharmaceutical industries and related sectors, where it’s necessary to treat complex mixtures, explosive or even saturated gases, and/or liquid wastes. The process can be used successfully to solve difficult and complex issues with thermal oxidation of halogenated and sulfurated organic compounds, and also those with a significant amount of nitrogenated organics.

The streams that can be treated with ECOPURE VAR systems may also contain compounds that during the thermal oxidation process produce dust as silane and phosphorus compounds.

The exhausted halogenated and sulphur compounds are usually treated with one or more stages of wet absorption (scrubbers) and with a quenching section. With nitrogen organic compounds it is necessary to apply one or two stages of denitrification (DeNOx SCR and SNCR) in addition to the adoption of Dürr special low NOx burners.

Plant assessment – after-sales service

Well-designed systems require upgrading and improvements if the customer wants to operate effectively in the long term. The conversion or enhancement of production, for example, requires an increase in plant capacity.

During these changes we will replace old components with new solutions based on our latest generation of equipment, so your system will always be state-of-the-art.

OLPIDÜRR Releases New White Paper

OLPIDÜRR is the Italian subsidiary of the Dürr Group. It manufactures painting, industrial cleaning and air abatement systems for the pharmaceutical industry. OLPIDÜRR's recently released white paper explains how OLPIDÜRR and Dürr's environmental technologies ar

6 December 2010

Ecopure VAR – Cutting Energy Costs at BASF Orgamol

Ecopure® VAR oxidisers are used worldwide in the chemical and pharmaceutical industries. They are especially suitable for the purification of explosive exhaust gases and for the treatment of residual liquids. Dürr's environmental and energy systems (EES) business unit has combined several di

18 November 2010

Catalytic Air Pollution Control Systems for VOCs Removal

Catalytic methods to treat hazardous air pollutants are experiencing a comeback. In the past 15-20 years they have often been replaced by other thermal oxidation processes on account of the catalysts' susceptibility to poisoning and/or masking. Catalytic oxidation of VOCs owe their comeback to tw

7 October 2010

Dürr’s Clean Air Solution for Rexam

Environmental and Energy Systems, a business unit of the global Dürr group, recently supplied Rexam with an Ecopure® RL system, a special type of regenerative thermal oxidiser (RTO), for use at their beverage can manufacturing plant in Denmark. Because of the ability to treat medium air

5 August 2010

Dürr Supplies High-Pressure Catalytic Oxidation System to Equipolymers

In May this year Dürr's Environmental and Energy Systems business unit successfully secured an order via its US location in Plymouth to engineer, fabricate and supply a high-pressure catalytic oxidation system. The Ecopure HPX system was installed at the Italian manufacturing facility of the

5 August 2010

Ecopure VAR Cut Energy Costs at BASF Orgamol

High cost savings at the French site of BASF in Saint-Vulbas thanks to Dürr environmental technology: The Ecopure® VAR thermal oxidiser recovers most of the waste heat and reduces energy consumption as a result. Ecopure VAR oxidisers are used worldwide in the chemical and pharmaceu

31 March 2010

Dürr Presents its New TAR Oxidiser

Dürr Environmental and Energy Systems has developed a new environment-friendly recuperative thermal oxidiser under its TAR brand. The Ecopure® TAR oxidiser, generation IV with controllable primary heat exchanger and new TARCOM burner technology saves a significant amount of fuel energy

31 March 2010

Dürr Introduces New High Performance Burner

Bietigheim – Bissingen – 16th March 2010. Dürr’s Environmental and Energy Systems Business Unit expands its product portfolio with the VARCOM GB burner for VAR systems. The new gas burner covers a wide range of applications and boasts high performance, flexibility and a maintenance-friendly design.

15 March 2010

Verified TAR Thermal Oxidiser Technology for New Markets

Dürr is successfully expanding its environmental technology business in the BRIC countries. In close cooperation with customers, Dürr's Environmental and Energy Systems business unit has recently completed several projects for the coating industry in Russia, Ukraine, Brazil and China.

14 July 2009


Via G. Pascoli 14
20090 Novegro di Segrate (Milano)

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