They have a system to filter carbon from the air from hot air balloons


Eradicating carbon emissions is a common purpose for an important part of the world's countries. It's quite a challenge, considering how complex the dynamics under which the planet moves is.

Those industries or areas where these emissions cannot be eliminated will apply - depending on each particular legislation - imposed by this concept. To avoid this situation, the implementation of air filters will be required.

The current offer of solutions for these cases involves high costs. However, a new alternative looms on the horizon, with startup High Hopes.

The proposal is really eye-catching. Using a mechanism specially designed for this task, they can process air at a $100 per tonne cost. For reference, other companies offer this service for rates ranging from $600 to $1000 per tonne.

High Hopes' system is based on the use of hot air balloons, such as the ones Google used in its defund Loon project. To accomplish their task, energy-efficient carbon capture platforms are installed in high-altitude balloons to heights where they find it feasible to work more efficiently. This mechanism then fills your pressure tanks with dry ice, to bring them back to the surface. As the temperature rises, dry ice will become CO2 again in a gaseous state, pressurizing thanks to the restricted volume of the tanks, in a format ready for further treatment.

This is a basic process within the changes in the state of matter, called cryodistillation. When this process is carried out at high altitudes, the entire process involved is physically lighter.

For large-scale implementation, the team is considering the Sub-Saharan African region, for its optimal air conditions, its proximity to the equator, and its minimal impact on air traffic. Despite these choice criteria for the first deployment, high hopes claim that this system can work from any latitude.

As for safety considerations, altitude over clouds was contemplated, to prevent equipment from being impacted by lightning and passing, from being exposed to an explosion by the high flammability of hydrogen. Climate factors typical of the area also reduce the likelihood of such accidents or others related to contact with rain that, despite being unlikely, is a scenario that High Hopes claims it can react to.

The next steps of this project focus on the expansion of this initiative. Increased processing capacity and a wider coverage area are purposes that are in the crosshairs of this startup native to Israel.

In countries such as Sweden, carbon taxes are already being applied. It is a pioneering case, but projections generally point out that the trend of global policies is oriented there. Industries that cannot apply a "green seal" to their processes from the source will need to implement solutions that directly impact the consequences they generate. This solution takes a step forward towards that ever closer future.

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