ASCO₂

- Automatic System for CO₂ Recovery and Storage

The automatic ASCO₂ Recovery System absorbs CO₂ from outdoor air. Then, the system releases the pure CO₂ gas through a vacuum pump - compressor system into high pressure storage bottles or other high pressure storage systems. The quantities of enrichment of our standard ASCO₂ Systems vary by model between a few milligrams and 20 kg per hour, but we also deliver tailored systems according to the client need.

The patented technology is based on the Carbon Dioxide filtration technologies developed originally for modern submarines. In a submarine, the members of the crew produce Carbon Dioxide in volumes that would be mortal, if the gas would not be eliminated from the vessel indoor air.

As the system does not produce CO₂, but only adsorbs it from the air, it is a very environmentally friendly technology, which can help you in creating a favorable image for your organization, company or products.

The costs of recovering CO₂ using the ASCO₂ system are far below the price of CO₂ in the market. In addition to electricity costs, there are no material or fuel costs related to the CO₂ solution. The ASCO₂ Carbon Dioxide Absorbent service life is well over 5,000 recovery cycles, which means years of almost maintenance-free operation. And there is no need to continue carrying the CO₂ bottles nor fuels or raw materials to your premises.

The complete autonomy of the Automatic ASCO₂ CO₂ Recovery System is very long. You switch it on, and it will carry out the CO₂ Recovery automatically, for between 3 and 20 years. It is only necessary to change the prefilter (for particles in the air) 1 - 4 times a year. The cost (energy costs included) per a kilogram of CO₂ recovered, is less than half of the corresponding price of CO₂ produced by combustion methods. Also, the cost saving in the form of a dramatic reduction in labor hours and discontinued contamination of the climate of your premises by combustion gases have to be considered.

Description of the Technology

ASCO₂ is the principal technology of carbon dioxide filtration in Building Engineering. 

Description of the Technology

The Automatic ASCO₂ Carbon Dioxide Recovery System adsorbs CO₂ from the air or other gases and pressurizes it into high pressure gas storages.

Adsorption of CO₂ 

1) A ventilator blows outdoor air through a CO₂ Absorbent Cassette. The carbon dioxide absorbent media is amine impregnated in polystyrene. The chemical reaction can be described as follows:

The Chemical Absorption Reaction, ASCO₂
Amine + H₂O → (Amine - H₂O) and then (Amine - H₂O) + CO₂ → (Amine - H₂CO₃)

2) CO₂ is blown to the greenhouse or to high-pressure storage bottles and the purified air without CO₂ is blown back to the atmosphere.

The efficiency of absorption 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;
Absorbent (Amine) Weight: 25 grams:

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

Desorption of CO₂

During the CO₂ Adsorbent Regeneration, the adsorbed carbon dioxide is released by heating the ASCO₂ absorbent by hot air blown through the cassette. The warm air is generated by an internal heater of the equipment or by an autonomous heater.

Desorption (Regeneration):
 (Amine - H₂CO₃) + Heat → Amine + H₂O + CO₂

If the heat produced during the process is not needed, the ASCO₂ System can be equipped with a Gas Refrigerator that lowers the temperature to the level required.

ASCO2 MX8 Automatic System for CO2 Recovery -  CO2 Recovery capacity: 0,8 kg/hour / outdoor air (with 380 ppm CO2) -  Option: Dehumidifier -  CO2 Grade:  Up to 98,5%, if Dehumidifier used Other models of ASCO2 MX are delivered according to CO2 recovery need.

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