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 ASCO2

Description of the Technology

 

Carbon Dioxide (CO2) filtration is needed in various situations, e.g. in improving the quality of indoor air and in several types of industrial and laboratory processes.

 

The Automatic ASCO2 Carbon Dioxide Filtration Technology adsorbs CO2 from air and releases it out of the facilities or, in case the CO2 gas is needed for e.g. in a production process, into pressurized gas bottles or directly into the manufacturing process. The CO2 filtration and recovery process is described below.

 

 

Adsorption of CO2 

 

1) A ventilator blows air or gas through the CO2 Adsorbent Cassette, with a type of amine impregnated in polystyrene as the adsorbent. The chemical adsorption reaction can be described as follows:

 

The Chemical Adsorption Reaction, ASCO2

Amine + H2O → (Amine - H2O) and then (Amine - H2O) + CO2 → (Amine - H2CO3)

 

 

The efficiency of adsorption is demonstrated by tests realized by the Helsinki University of Technology:

 

Test Data:

Concentration of CO2 in the Air Intake: 350 ppm;

Air Flow: 6 liters / minute = 360 l / h; Adsorbent (Amine) Weight: 25 grams:

The tests show that 25 grams of our patented Amine can adsorb all (100%) of the 350 ppm CO2 in airflow of 360 l/h during 9 hours and 30 minutes.

 

 

Desorption of CO2

During the Reactivation, the adsorbed carbon dioxide is released by heating the ASCO2 adsorbent by hot (approx. 70ĄC) air blown through the cassette. The warm air is generated by an internal heater of the equipment: 

Desorption (Regeneration):

 (Amine - H2CO3) + Heat → Amine + H2O + CO2

 

After the Reactivation, the adsorbent is once again ready for the filtration of carbon dioxide.

 

 

Scheduled Filtration

 

The Filtration process is made continuous using two or more cassettes of the adsorbent. Then, one cassette is adsorbing and the other is releasing the CO2.

 

The duration of filtration is digitally adjustable. It can be

€               Set to Continuous Filtration or

€               Scheduled for Filtration during the day, week, month and year or

€               Integrated to an Electronic CO2 Control System of a production process.

 

 

FRESCO2 Air Purifiers - for Better Quality of Indoor Air
 CO2 Filtration for Industrial and Laboratory Processes
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