Following Nature’s Carbon Cycle
Carbon Recycling Technology (CRT) did not begin with a complicated process simulation or with
an attempt to invent another carbon-capture technology.
It began with a much simpler question: How does Nature deal with carbon?
All life on Earth exists in an intimate relationship with its environment. Human beings, animals,
plants, microorganisms, water, atmosphere and soil are not truly independent systems. They form
parts of a larger interconnected natural system.
Human civilisation sometimes behaves as though the environment is external to us — something
that can be consumed, altered or damaged without eventually affecting human life. But if life and
its environment are inseparable, degradation of that environment must ultimately return to affect
the life that depends upon it.
That observation became important in thinking about carbon.
Nature Does Not Bury Carbon
Nature continuously moves carbon between the atmosphere, oceans, soil and living organisms.
Plants provide perhaps the most familiar example. Through photosynthesis, they take carbon
dioxide from the atmosphere and, using sunlight and water, incorporate that carbon into
carbohydrates and biomass while releasing oxygen.
CO₂ + H₂O + solar energy → carbohydrate/biomass + O₂
The important principle is not merely the chemistry. It is the cycle.
Carbon is transformed, used, and transformed again.
Nature therefore suggested a different question to me: Instead of treating carbon dioxide only as a
waste product to be captured and disposed of, why not treat it as carbon that has temporarily
changed its chemical form?
That question eventually led to CRT.
From Carbohydrate to Hydrocarbon
Human engineering has also attempted to convert captured CO₂ into useful products and fuels.
But there is a fundamental distinction between biological photosynthesis and the approach that
interested me.
Nature principally converts atmospheric carbon dioxide into carbon-containing biological matter
such as carbohydrates.
For an industrial energy system, I asked whether we could instead convert the carbon dioxide
generated from a hydrocarbon back into a hydrocarbon.
Consider methane.
When methane is oxidised, its carbon becomes carbon dioxide: CH₄ → CO₂
But the carbon atom has not disappeared. It has simply moved from one molecular form to
another.
If that CO₂ is captured and converted back into methane using hydrogen and a suitable process
chemistry, the carbon can return to the fuel cycle:
CH₄ → CO₂ → CH₄ → CO₂ → CH₄ …
This became the fundamental idea behind Carbon Recycling Technology — CRT.
A Closed Industrial Carbon Cycle
CRT therefore differs conceptually from conventional carbon capture and storage.
The objective is not: Extract carbon → use it → capture CO₂ → dispose of it
but rather: Use carbon → capture it → chemically regenerate the fuel → use the carbon again.
The carbon becomes an internal circulating inventory rather than a continuously consumed
resource followed by a continuously generated waste stream.
There is another important distinction between CRT and the natural photosynthetic cycle.
Plants release oxygen to the atmosphere as part of photosynthesis.
CRT is deliberately engineered differently.
Where oxygen is produced within the integrated process — for example, through water electrolysis
— it can be consumed internally where the process requires oxygen. The intention is therefore not
to reproduce photosynthesis literally, nor to release oxygen simply because Nature does.
CRT takes inspiration from the circular principle of Nature and translates that principle into an
engineered thermochemical system.
The Idea Became an Engineering Problem
Once I saw carbon dioxide in this way, the problem changed completely.
The question was no longer simply: “How do we capture CO₂?”
It became: “How do we keep the carbon circulating inside an industrial system without continually
releasing it to the atmosphere?”
That required engineering answers: carbon capture, hydrogen-rich syngas production,
methanation, oxygen integration, heat recovery, power generation, water recovery and careful
mass and energy balancing.
Over time, these individual operations developed into the integrated system that I call Carbon
Recycling Technology (CRT).
The inspiration was Nature. The implementation is engineering.
And the underlying principle remains remarkably simple:
Carbon does not necessarily have to become waste after we obtain energy from it. It can become
a circulating raw material.
If we can keep that carbon circulating within the engineered system, the conventional linear
relationship between hydrocarbon use and continuous atmospheric CO₂ discharge can potentially
be fundamentally changed.
That is how CRT was born.
“CRT does not attempt to copy Nature’s chemistry. It attempts to learn from
Nature’s carbon philosophy.”
