The Downflow Gas Contactor's Advantages

Our Technology > The DGC's Advantages

The following are some of the Downflow Gas Contactor's properties and advantages:

Stable bubble matrix formed
Distinct gas-liquid interface
Lower power consumption
Smaller operating volume
No foaming
No free gas-liquid interface
Inherently safe
100% gas utilisation
Greater than 95% approach to equilibrium in very short contact times
High and accurate control of interfacial areas
Improved reaction rates and selectivity
No internal moving parts
Reduced capital and operating costs
Higher gas hold-ups (50-60%)
Tolerance to particulates
Easy scale-up without loss in efficiency
Easy automation and control
Batch, semi-autonomous or continuous mode operation

Some videos of the DGC reactor

In this video you see a bubble column developing within a DGC reactor. Here are some details about what you see at various times within the video.

Time	Description
7 seconds	Start-up of DGC Gas input into flowing reaction media with catalyst
18 seconds	Bubble column develops
35 seconds	Gas input reduced – bubble column height reduces as reaction occurs with Gas utilisation, till equilibrium level attained
59 seconds	As Gas input increased bubble dispersion column develops again

In this video you see bubble dispersion maintaining level in the DGC column with 100% gas absorption at continuous flow conditions; greater than 95% equilibrium concentrations are achieved.