Flare Stacks

High-temperature combustion of biogas, landfill gas, contaminated industrial gas and process air

High-temperature combustion with a HAASE flare stack is a suitable solution for the treatment of all kind of contaminated gas. This also applies to highly corrosive gas and process air that would not burn its own.
Standard applications are landfill gas, biogas, sludge gas and industrial process gas. Low calorific value gas is mixed with auxiliary gas (e.g. propane) before it enters the flare unit. For the disposal of landfill gas from old landfills and contaminated process air a HAASE Lean Gas Flare or a VocsiBox® is the ideal solution.
With the development of a special burner technology HAASE Energietechnik succeeded in setting new standards for the high-temperature combustion of contaminated gas. Moreover, HAASE flare units excel by virtue of their integrated waste heat recovery. The waste heat can be used to heat facilities on site and/or buildings located nearby.
At a defined fuel gas residence time HAASE flare stacks burn contaminated gas at temperatures of 850 to 1,250°C
Two different product lines of HAASE flare stacks are available:
1. LT flare stacks
  • Simple flare, burning chamber not insulated
  • For gases that are not subject to specific emission limits (e.g. sludge gas, biogas)
  • If temperature regulation is not required for the exhaust gas  

2. HT flare stacks for temperatures of up to 1,250°C
  • High-temperature flare with reinforced insulation in the burning chamber and with an extended range of control
  • For gases that require combustion and exhaust temperatures of up to 1,250°C and a minimum flue gas residence time of more than 0.3 seconds (e.g. landfill gas or highly contaminated industrial process air, according to TA-Luft standard and UK Guideline)
  • If ranges of control of 1:5 to 1:10 are required

Odourless and invisible

HAASE flare units are an environmentally safe solution to keep control of emissions. They do not produce odours and have no visible flame. HAASE flares are both reliable and sustainable. And by virtue of their modern burner technology they work on a low-noise level.

HAASE flare units are pre-assembled and subject to test runs at works before they are finally delivered to the customer. Therefore, installation and commissioning on site will only take little time.

Test a flare before you buy it!

You can rent a mobile HAASE flare stack to test its efficiency. The results are convincing. Mobile flares are most suitable for applications limited in time, i.e. degasifying tests, protective degassing and for the disposal of gas in emergency situations. You can also buy these facilities second-hand. Don’t hesitate to ask!
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Biogas Flare Stacks: Standard flares for 50 to 4,000 m³/h (PDF, 105.69 KB)