A yet2 client seeks technology to efficiently collect various compounds contained in exhaust gas.


Gas discharged from the exhaust port contains tiny amounts of compounds other than nitrogen monoxide (CO), hydrocarbon (HC), nitrogen oxide (NOx), carbon dioxide (CO2), nitrogen (N2), or oxygen (O2).  We are looking for a technology that can efficiently collect such small amounts of compounds from the above-mentioned gas.  See below for the example of compounds.
– Alcohol
– Aldehyde
– Ester
– Franc
– Piran
– Phenol
– Pyrazine

At the end of the process, we assume that each compound can be isolated and recovered at high concentration in ethanol.


  • All compounds except carbon dioxide, nitrogen, etc. in the discharged gas can be adsorbed and separated as much as possible (with recovery rate of 95% or above)
  • Each compound component should be isolated. (In the first process, various compound components may be adsorbed together as long as those can be isolated to each component at the final stage.)

Possible solution areas:

Columns, separation membranes, pharmaceuticals, perfumes, engineering industries, etc.

CO2 separation and recovery technology, VOC (volatile organic compound) removal technology or separation and recovery technologies with any other targeted components

Desired outcome of the solution:

Technologies that can increase recovery/collection efficiency during isolation process

Desired Timeframe:

Within 12 months

Field of use and intended applications:

Aroma recovery.

Previously attempted solutions: