Industry Solutions

In many industries there are typical processes that in turn lead to industry-specific exhaust air flows. This enables a certain degree of standardization and thus also cost savings. Here you will find an overview of typical industry requirements.

Waste disposal

Complex and corrosive exhaust air flows

Typical pollutants

  • Aliphatic and aromatic hydrocarbons, organic acids, inorganic acids, sulfuric acid, Si compounds, odour

Requirements and objectives

  • Protect the system from corrosion, avoid dioxins
  • Ensure permeability, anti- clogging measures
  • 100% availability

Possible solution

  • Adoption of outer insulation, use of very high-quality, corrosion-resistant stainless steel, application of inner coating
  • Special heat exchanger materials
  • Easy access / cleaning openings
  • Redundant design for maximum availability
  • Further pre- / post-treatment as required

 

Automobile

Use of waste heat

Typical pollutants

  • Aliphatic and aromatic hydrocarbons

Requirements and objectives

  • Paint shop integration
  • Heat extraction for heating- up the dryer
  • Partial low loading with high volume flows
  • High availability

Possible solution

  • TIU with hot bypass
  • For paint booths adsorption wheel + RTO or TIU
  • RTO can be used if independent dryer heating
  • Flameless natural gas injection into the combustion chamber (flameless operation)

Coating

Fluctuations in concentration

Typical pollutants

  • Aliphatic and aromatic hydrocarbons, plasticizers

Requirements and objectives

  • Heat extraction for dryer heating
  • Different loading depending on the type of coating
  • Rapid process changes in terms of volume and pollutant load
  • Risk of deposits / condensation

Possible solution

  • TIU or RTO, depending on the amount of exhaust air, secondary heat demand and pollutant concentration
  • Secondary heat recovery through thermal oil or hot water
  • Flameless natural gas injection into the combustion chamber (flameless operation)
  • Process air preheating
  • Easy access / cleaning options

Chemical / Petrol Industry

Highest technical and safety standards

Typical pollutants

  • Aliphatic and aromatic hydrocarbons, organic acids, inorganic acids, sulfuric acid, Si compounds, odor, halogenated hydrocarbons, others

Requirements and objectives

  • High degree of customization
  • Increased clean gas requirements
  • Integration in production plants and their control system

Possible solution

  • Completely individualized system
  • System solutions for complex applications and pollution
  • Energy optimization, energy recovery (steam, oil …)

Insulation Materials

Purgatory

Typical pollutants

  • CO, H2S, Org.-S compounds, SOx, dust, halogens, etc.

Requirements and objectives

  • Dust, high temperature, blast air for cupola, strong concentration fluctuations
  • High availability
  • Corrosion resistance

Possible solution

  • TIU with special burner, “Blast Air” preheating to over 620 ° C, dust filter, spark trap, DeSOx
  • Multi-stage heat exchangers

Print

High exhaust air volume

Typical pollutants

  • Ethanol, ethyl acetate, heatset oils

Requirements and objectives

  • Large volume
  • Concentration between 3 and 15 g/Nm³

Possible solution

  • RTO with hot bypass for a large control range
  • Heat recovery for process heating
  • Concentration monitoring
  • Filling and dilution with fresh air
  • Flameless natural gas injection into the combustion chamber (flameless operation)

 

Food

Surfaces

Typical pollutants

  • Odorous substances

Requirements and objectives

  • High thermal efficiency
  • Assessment of effectiveness
  • Requirements from the food industry
    • Stainless steel
    • Surface texture
    • General rules

Requirements and objectives

  • RTO with high efficiency
  • Use of stainless steel where necessary or requested by the customer
  • Flameless natural gas injection into the combustion chamber (flameless operation)

Metal Print

Process integration

Typical pollutants

  • Aliphatic and aromatic hydrocarbons

Requirements and objectives

  • Integration in the dryer, not just end of pipe

Possible solution

  • TIU with hot bypass, air-to-air heat exchanger
  • Concentration monitoring

Bricks

Cleaning by burning out

Typical pollutants

  • Dust, CO, hydrocarbons, H2S, HF

Requirements and objectives

  • Large volume

Possible solution

  • RTO
  • External insulation
  • If necessary, arrangement of the fan “downstream” of the RTO + silencer
  • Honeycomb stones designed for dust
  • Bake-out / burn-out