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CarbonWorks

Our disruptive technology

CarbonWorks' ambition: to contribute to making the microalgae sector a vector of decarbonization

How do microalgae decarbonize?

Microalgae produce renewable raw materials for agriculture and industry from CO₂.
They are therefore a vector of CCU: Carbon Capture and its Use.

 

By producing these renewable raw materials from CO₂ instead of fossil or mineral materials, CarbonWorks helps reduce fossil CO₂ emissions.

Carbon Capture…

 

The microalgae grown by CarbonWorks are photosynthetic microalgae.

They naturally capture CO₂ by photosynthesis: they use the energy of light to break the C-O₂ bond in CO₂, assimilate carbon C in their metabolism and release oxygen O₂ into the atmosphere.

…and its Use…

 

Microalgae are also true micro-factories capable of producing a wide variety of molecules.
It is these molecules which form the renewable raw materials produced for agriculture and industry.

… particularly efficient

 

Microalgae have been present on our planet for more than 1 billion years and have continuously improved the processes of Carbon Capture and production of molecules for its use. These processes are therefore particularly optimized and their implementation makes it possible to envisage a particularly efficient CCU (Carbon Capture and Use).

Microalgae know how to develop specific molecules: proteins, lipids, toxins, etc.
By choosing the right strain of algae, we produce the desired molecule naturally.

To decarbonize, we must produce volumes on the scale of industry needs

To make microalgae a decarbonization solution, it is imperative to know how to produce significant volumes of microalgae: production must be on the scale of industry needs in terms of renewable raw materials and in terms of CO₂ capture.

Extensive cultivation systems already have high surface yields, much higher than the surface yield of terrestrial plants: we can go up to 80 to 100 tonnes of biomass produced per hectare per year (80 to 100 t biomass/ha/year [Rodolfi L, Chini Zittelli G, Bassi N, Padovani G, Biondi N, Bonini G, Tredici MR. Microalgae for oil: strain selection, induction of lipid synthesis and outdoor mass cultivation in a low-cost photobioreactor. Biotechnol Bioeng. 2009 Jan 1;102(1):100-12.]), which allows us to consider microalgae cultures for the production of niche specialties.

These surface yields are nevertheless insufficient when we consider the production of large volumes, and the capture of carbon on the scale of industry needs.

CarbonWorks' mission is to unlock the production of large volumes of biomass, and develop an intensive microalgae cultivation technology whose surface yields reach 5000 t biomass/ha/year and 10,000 t CO2 captured/ha/year .

CarbonWorks KPIs

CarbonWorks has set itself 3 KPIs in the development of its technology.

A surface yield ≥ 5000 t biomass/ha/year, or 10,000 t CO2 captured/ha/year, inventing the intensive cultivation of microalgae for this purpose

An LCA (Life Cycle Analysis) which demonstrates the positive environmental impact of CarbonWorks’ intensive microalgae cultivation technology; this LCA is carried out by a firm specializing in the subject, and its results contribute to CarbonWorks’ ecodesign approach.

Cost prices that make it possible to find convincing outlets for renewable molecules produced from biomass

Carbon Works

Intensive cultivation of microalgae and R&D

To invent its disruptive technology for intensive microalgae cultivation, CarbonWorks frees itself from existing technologies and revisits all the technological building blocks that contribute to photosynthesis: light, CO₂, and the microalgae's access to these 2 resources .

 

To do this, CarbonWorks has established partnerships with renowned academics, such as the CEA, CNRS and CRITT. It has also developed an ecosystem of private partners, each of which contributes to the development of technology in their area of expertise. The developments carried out by CarbonWorks have been labeled Deeptech by Bpifrance.

In the R&D project that led to the creation of CarbonWorks and after its creation, CarbonWorks developed a portfolio of 11 patents, which protect its technology.

Industrialisation & scale-up

CarbonWorks developed a first pilot and a demonstrator in 2021. Building on the results of these developments, it made a major technological pivot in mid-2022 and developed a pilot with a completely innovative design.

 

It is on the basis of this design that CarbonWorks plans to scale up its technology for a factory planned for 2028.

CarbonWorks intensive cultivation plants

CarbonWorks' intensive cultivation plants will be installed at the foot of CO₂ emitters. They will be designed in a modular way, in order to adapt to the quantity of CO₂ emitted and the evolution over time of these quantities. The installed biomass production modules will be able to produce various types of microalgae depending on the demand for renewable raw materials.

 

Through this approach, CarbonWorks aspires to develop the industry's CO₂ purification plant.