Airco BIO CO2 – utilizes all available resources and creates food-grade CO2

When biogas from AD’s is split into Methane and Carbon Dioxide in a Biogas Upgrading plant, normally only the Methane is utilized. It is however relatively easy also to capture and utilize the Bio CO2, offering a second value stream.

Bio CO2 solution

Airco Process Technology’s Bio CO2 solution is designed to capture and purify CO2 from biogas upgrading plants.

The solution can be installed together with Airco’s upgrading solutions or be connected to most existing biogas upgrading plants from other manufactures.

The CO2 can be purified according to specific requirements and be used for various purposes.

Airco Process Technology’s Bio CO2 solution is designed to capture and purify CO2 from biogas upgrading plants.

The solution can be installed together with Airco’s upgrading solutions or be connected to most existing biogas upgrading plants from other manufactures.

The CO2 can be purified according to specific requirements and be used for various purposes.

Purposes

CCU (Carbon Capture Utilization)
CCS (Carbon Capture Storage)
Renewable energy (Power-to-X)
Food grade CO2

This is also known as BECCS
(Bio energy with Carbon capture and storage)

To learn more about our Airco Bio CO2 recovery systems for biogas plants, please contact us.

Why recover Bio CO2

To keep our world in balance, we need to recycle all value chains that are feasible. In addition to the green energy biogas plants produces a high concentration and natural source of none-fossil CO2(carbon dioxide).

After biogas upgrading, this CO2 source is today typically vented to the atmosphere. However, with Airco’s Bio CO2 recovery, it will be possible also to utilize this value stream.

Capturing Bio CO2 is relatively simple compared to capturing CO2 from many other sources. For instance, is the concentration of CO2 in this off gas is very high and it only contains a limited number of unwanted impurities. Therefore, it is easier, cheaper and more energy efficient to capture, purify and liquefy.

CO2 concentration in:

Raw biogas – between 30 to 50%
Upgraded biogas between 95 to 99,9%
Flue gas – between 4 to 9%
Air (atmosphere) – approx. 0,0415% (415 ppm)

 

 

Firstly, the Bio CO2 be purified to any desired quality requirement from CCU (Carbon Capture Utilization) up to food-grade quality.

Secondly it can be used for CCS (Carbon Capture Storage) compensating for current or previous fossil CO2 emissions (as this CO2 stream is 100% none-fossil).

Thirdly, it can be reused and converted into green renewable energy in a Power-to-X process.