home  ι  impressem   ι  PRINT
 
ProductsHeat treatment of metalsHeat treatment of plasticsFoundryCeramicsGlassResearch and laboratoryDentalProcess control systemsServiceCompanyNewsContact  

Catalytic and thermal purification of exhaust air

Catalytic and thermal purification of exhaust air

Many thermal processes in technical ceramics, dental ceramics and other fields result in the release of volatile organic compounds. Compliance with emission limits requires the use of downstream exhaust air purification systems. THERMCONCEPT supplies catalytic and thermal exhaust air purification systems that are customised for the specific process.


Catalytic exhaust air purification system
THERMCONCEPT catalytic converters work with honeycomb ceramics that are coated with needle-shaped Perovskite crystals and which have a high resistance against most catalyst poisons.
Catalytic exhaust air purification systems are designed according to the volumetric flow of exhaust gas and the composition and concentration of the organic compounds. Depending on the specifically intended use, these compounds are catalytically oxidised at temperatures between 280 °C and 500 °C and are entirely converted into carbon dioxide and water.
THERMCONCEPT supplies integrated plants consisting of the furnace system, the catalytic exhaust air purification unit and a PLC controller for the entire process. The plant also includes the required safety equipment in accordance with the EN 1539 standard and also can be supplied, on request, with a matching exhaust pipe.



(1) Catalytic exhaust gas purification in the tyre industry, KNV 600 model


(2) Furnace system for debinding ceramic components with catalytic exhaust gas purification, KNV 150 model.


(3) The photo shows a furnace system with a KNV 150 catalytic exhaust air purification unit for use in medical technology, equipped with catalyst honeycombs for pre-cleaning, catalytic purification, filtration and separation systems against catalyst poisons, for a volumetric flow rate of 80 nm3/hr


(4) Arrangement of the honeycomb ceramics in a catalytic converter


(5) Catalytic exhaust air purification in the ceramics industry, KNV 300 model
 
(1)
(1)
(2)
(2)
(3)
(3)
(4)
(4)
(5)
(5)
Thermal exhaust air purification systems

THERMCONCEPT designs, builds and supplies thermal postcombustion systems for different applications. This robust and versatile type of exhaust air purification is generally deployed when an undefined crude gas is used, or when catalyst poisons exclude the use of a catalytic purifier. Organic components in the exhaust air are burned completely at temperatures of approx. 750 °C.
  • Standing, lying or suspended design
  • With noise control measures (installation of silencers, noise control booths)
  • Insulation with high-quality ceramic fibres for combustion temperatures up to 1200 °C
  • Heating by means of gas or oil burners; electrical heating also possible
  • Volumetric flow rates of 50 nm3 /hr to 15000 nm3 /hr
  • Optionally fitted with heat exchangers for heat recovery
  • Exhaust gas chimney and pipes available on request
  • System fitted with the required safety equipment

The THERMCONCEPT service range:
  • Planning and design of exhaust air purification systems in new and old systems
  • Support with official approval procedures and emission measurements
  • Integration with upstream and downstream processes
  • Integration in existing conveyor and handling solutions
  • Tests in our high-temperature pilot plant


THERMCONCEPT deploys thermal post-combustion in furnace systems heated electrically or with gas. The priority is always to supply a customised turnkey solution for the user’s specific process, comprising the furnace, thermal post-combustion unit, safety equipment and process control. 		 

The photo shows a gas-fired furnace for dewaxing with thermal post-combustion, program flow control and temperature regulation using a Siemens-PLC S7 313 with TP 170 touch panel.