Bubble reactor

Removal of various volatile compounds

• volatile nitrogen compounds (NH₃, amines, …)
• volatile sulphur compounds (H₂S, mercaptans, ...)
• acid gases (CO₂, NO, NO₂, SO₂, …)
• halogen compounds (Cl₂, HCl, HBr, F₂, HF, SiCl₄, …)

Gas-liquid contact through bubble formation

A bubble reactor is a simple scrubber that brings the gas into contact with the scrubbing solution using a fan. In the bubble reactor, the gas is blown through special plastic gas diffusers resulting in the formation of small gas bubbles in the scrubber liquid, thereby realising a good gas-liquid contact and mass transfer.

Simple design and easy maintenance

The only moving component of the bubble reactor is the fan, so no pump is needed. The diffusers are easily removable and therefore easy to clean.

Temporary and small-scale applications

The advantage of this scrubber is that it is simple in use and easy to transport. Drawback of the system is the need for a fan that is able to overcome the static pressure of the scrubber liquid (e.g. 50 mbarg), and as such implicates a rather high energy cost. As a result of this, this technique is often used for temporary applications in the field where rather small gas flows (< 1000 m³/h) have to be treated.

Scrubber liquid selection

Depending on the compound to be removed, the most suited scrubber liquid should be selected. The liquid inside the scrubber tank can be renewed batch-wise. Removal efficiencies up to 99% can be obtained, depending on the pollutant, scrubbing liquid and operating conditions.