Concept

In a well-balanced ecosystem, carbon capture from photosynthesis, carbon deposition in the soil and oceans, and carbon release from biological and geological sources are in equilibrium.

Since the beginning of the industrial age (in the 1850s), however, this equilibrium has been perturbed by increasing carbon emissions from the combustion of fossil fuel, and biomass, from reduced carbon uptake as a result of global deforestation and the loss of arable land.

Currently, more than 80% of the energy produced globally each year is generated through the combustion of fossil fuels. Direct carbon combustion for energy production generates more than 30 gigatons of carbon dioxide (CO2) annually. As a result, atmospheric CO2 concentrations have risen from 295 parts per million (ppm) to 408 ppm over the last 100 years, and have contributed substantially to global warming, climate change, and resultant biological extinctions (https://academic.oup.com/bioscience/article/60/9/722/238034)

Ocean GeoLoop has developed a process for capturing this CO2 and return it to the cyclicity of nature:

How it works

CCS (Carbon Capture and Storage)
Open system:

The flue gas from an emitter is captured, filtered, diluted and converted into ultra-small gas pockets (nanocavities).

These nanocavities can be stored in the ocean (or any other water volume) for long time periods (months to years to permanent), without rising to the surface. They can also be injected into natural acquifers, oil-gas reservoirs, etc.

They have no harmful effects on the environment

Geo-loop. Aquatic nano-cavity generation.Nano-cavity storage

Nanocavities

Nanocavities are nanometre-scale cavities (pockets) in this case used to store the diluted flue gas. The cavities are on a molekylar level, and in one millimetre we could fit one million nanocavities

CCU (Carbon Capture and Utilization)
Closed-loop system:

  • Transformation of the purified, flue gas to nanocavities, by mixing the gas with water (proprietary procedure)
  • This flue gas is then transported via subsea pipes to specifically prepared tunicate (a filtering sea animal) enclosures in the ocean, where it is ejected as fertilizer for micro-algae naturally growing in the ocean volume.

The micro-algae convert the CO2 in the flue gas, plus CO2 from the air and the water volume, into algae biomass. In this process the micro-algae (globally) can capture more CO2 than any other living organism, e.g. 6.5 times more than the combined rainforests of the world.

The flue gas nano-cavities are separately stored during night hours, when the micro-algae are not performing their photosynthesis.

These micro-algae will be harvested by Ocean Geoloop by the use of tunicates. This biomass contains valuable ingredients for use in feed production, bio-fuel and a large range of other valuable products

Geo-loop phases

Capacity – Micro-Algae CO2 capture

1km2

(NB: effective area, composed from multiple patches)

Capture/ natural CO2 storage of 515.000 - 1.650.000 tons CO2

This corresponds to cancellation of CO2 emissions from the burning of 1.2 – 3.85 mill. barrels of oil, or emissions from 286.000 – 918.000 cars (120 g/km, 15.000 km/year)

The GeoLoop process is so efficient that it can be operated without any public subsidies

Effects

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