Capture-to-Value · Modular Biotechnology

We turn captured CO₂ into materials and fuel the world already pays for.

4BlueTech is a climate-biotechnology company converting industrial and marine CO₂ and NOx emissions into biochar, sustainable aviation fuel, and marine-grade fuel — cutting CO₂ and NOx at the source for cleaner air, and turning what industry once vented into greener supply chains. All inside a standard 20-foot container, traceable from intake to output.

See the transformation How the technology works
2023
Founded — Barcelona & Finland
20 ft
Standard ISO container footprint
2 gases
CO₂ + NOx fixed in one reactor
3 systems
Aloreactor · P1Blue · P1Vault
Photo — Port of Barcelona pilot · P1Blue container on site
Photo — Aloreactor bioreactor close-up
Photo — container module / deployment
On site — Port of Barcelona · Fundació BCN Port Innovation
Barcelona · Finland — 2023–present
The transformation

An emissions liability, re-engineered into a supply chain.

The same carbon a port, cement plant, or vessel pays to emit becomes the feedstock for products with real industrial demand. That inversion — cost into commodity — is the whole company.

Waste stream in
CO₂
Flue gas, off-gas, marine exhaust
NOx
Fixed in the same closed circuit
Water
Nutrients enriched liquid medium
4BT
Biological
fixation + conversion
Value products out
Biochar
Soil, filtration, construction
SAF
Sustainable aviation fuel
Marine fuel
CO₂-neutral, marine-grade
Biomass
Agri, feed, pharma, cosmetics
The technology

One contained pathway, from flue gas to finished output.

Each module runs a closed biological and thermochemical sequence — intake, fixation, separation, conversion — instrumented end to end so every gram of carbon can be accounted for.

Fig. 01 — Capture-to-Value sequence · single 20 ft module Aloreactor core
01Intake 02Fixation — Aloreactor 03Biomass Separation 04Conversion 05Output P1VAULT — CONTINUOUS TELEMETRY & TRACEABILITY ACROSS ALL FIVE STAGES
Intake
Flue gas or ambient air drawn into a sealed circuit; CO₂ and NOx concentration logged at entry.
Aloreactor
Microalgae and bacterial cultures fix carbon biologically inside the reactor core — the proprietary unit.
Separation
Biomass is harvested from the culture medium; process water is reconditioned for reuse or discharge.
Conversion
Biomass is directed to pyrolysis for biochar, or to fuel synthesis for biofuel, SAF, or marine-grade fuel.
Output
Batch-documented biochar or fuel, with a corresponding carbon capture and conversion record.
The platform

Three systems. One integrated platform.

The biological core, the deployable hardware, and the software that ties every unit's output back to a verifiable record.

01 — Biological core

Aloreactor

4BlueTech's proprietary bioreactor, in which engineered microalgae and bacterial cultures fix CO₂ and process NOx from a sealed gas stream. The biotechnological heart of every deployed module, and the subject of 4BlueTech's patent filing.

  • Capture basisClosed-circuit biological
  • FeedstockFlue / off-gas / air
  • WaterWastewater-compatible
  • OutputAlgal & bacterial biomass
02 — Deployable hardware

P1Blue

The containerized capture-to-X unit that houses the Aloreactor, gas-handling systems, and downstream conversion equipment inside a standard 20-foot ISO footprint — designed to be sited, connected, and commissioned as a single module.

  • Footprint20 ft ISO container
  • DeploymentModular, site-portable
  • InterfacesGas, water, power, data
  • SitingPorts, terminals, airports
03 — Control & traceability

P1Vault

The software layer that governs and records every P1Blue unit in a fleet — real-time IoT telemetry, capture data by the minute, batch documentation, and the ledger from which carbon credit and output records are issued.

  • MonitoringReal-time, 24/7
  • GranularityCaptured ppm / minute
  • RecordsBatch & chain-of-custody
  • Built withFujitsu & Microsoft

Every module ships, sites, and scales the same way.

Format
20 ft ISO
Commissioning
Single-unit
Scaling
Fleet-based
Oversight
P1Vault
Capacity is added by unit rather than by rebuild: a single P1Blue module addresses a defined capture volume, and additional modules extend total site capacity without new civil works. This is the basis of 4BlueTech's Capture-as-a-Service (CaaS) model — operators contract capture capacity by the container, not by building fixed infrastructure.
Application · Biogas upgrading

Raw biogas in. Grid-ready biomethane out.

At digesters, wastewater plants, and landfills, roughly half of raw biogas is CO₂. The Aloreactor's cultures consume that CO₂ and scrub contaminants such as H₂S and NOx — raising methane content toward pipeline- and vehicle-grade biomethane, while the stripped carbon leaves as biomass instead of going up a flare.

Raw biogas in
CH₄ 40–60%
Methane — the energy fraction
CO₂ + H₂S
The contaminants we remove
4BT
Biological
scrubbing + upgrade
Value out
Biomethane
Target pipeline / vehicle grade
Captured biomass
Biochar, feed, fertiliser inputs
Cleaner off-gas
H₂S / NOx reduced at source
Batch record
Documented by P1Vault
Feed
Raw biogas from anaerobic digestion, WWTP, or landfill capture.
Removed
CO₂ fixed biologically; H₂S and NOx scrubbed in the same circuit.
Output
Upgraded biomethane plus captured algal biomass — two revenue streams.
Fits
Digesters, wastewater plants, agri-food and landfill operators.
The climate case

Capture that leaves proof, not promises.

The atmosphere doesn't respond to intentions. It responds to carbon actually removed from the air — and to nitrogen oxides that never reach a city's lungs.

"Everything we build is designed so that removal can be seen, counted, and traced back to the container it happened in."

4BlueTech founding principle
At the source

We treat the exhaust, not the excuse.

CO₂ and NOx are handled where they are emitted — a port berth, a flue, a digester — so the air leaving the site is genuinely cleaner rather than relocated.

Biological, not brute-force

Living cultures do the work.

Microalgae and bacteria fix carbon the way nature already does — no solvents to regenerate, no captured gas waiting for somewhere to be buried.

Accountable by design

Every gram has a record.

P1Vault ties captured carbon to the batch it became — biochar, fuel, or biomass — so climate impact is audited from the ledger, not estimated on a slide.

Why biological capture

Most capture technologies store a problem. Ours converts it.

Conventional chemical capture
✕
Energy-intensive regeneration
Solvents must be heated to release CO₂, consuming significant energy per cycle.
✕
Storage dependency
Captured CO₂ needs geological storage or pipelines — infrastructure that often doesn't exist.
✕
Pure cost centre
No revenue from the captured gas. The operator pays to capture and pays again to store.
4BlueTech biological capture
✓
Low-energy biological fixation
Microalgae consume CO₂ as a nutrient through photosynthesis — no heat-driven regeneration cycle.
✓
No storage needed
Carbon leaves as a solid or liquid product — biochar, fuel, biomass — not as compressed gas waiting for a hole.
✓
Revenue from day one
Every output has market value — operators offset capture costs with product sales, not subsidies alone.
Photo — industrial exhaust / smokestack / port emissions (the problem)
Before
Vented to the atmosphere.
Photo — clean sky / green algae cultivation / nature (the result)
After
Converted into value.

The same carbon that warms the planet becomes the material that builds the alternative.

CO₂ → Biochar · SAF · Marine fuel · Biomass
CO₂ NOx EMISSIONS ALO REACTOR BIOLOGICAL FIXATION Biomass SEPARATION Convert PYROLYSIS / SYNTHESIS BIOCHAR SAF · FUEL VALUE PRODUCTS P1VAULT — TRACEABILITY ACROSS EVERY STAGE
Climate impact

Cleaner air. Greener industry.

Because we capture CO₂ and NOx at the source, the air leaving a site is measurably cleaner — and the carbon that would have been vented becomes a product instead of a problem.

Point-source removal
CO₂ and NOx fixed at the berth, flue, or digester — not offset elsewhere.
Circular conversion
Carbon leaves as biochar, fuel, and biomass — inputs for other industries.
Batch-level audit
P1Vault logs ppm per minute and ties each record to a finished product — auditable, not estimated.
Photo — industrial / port site with P1Blue module
Photo — green microalgae culture / Aloreactor
Photo — clean sky / marine or aviation
Outputs & sectors

Captured carbon, put to industrial use.

Biomass leaving the Aloreactor is directed toward two conversion paths — solid carbon storage or liquid fuel synthesis — chosen according to partner requirements.

Biochar

Stabilised carbon output for soil amendment, industrial filtration, and construction-material applications, documented to the batch level.

Sustainable Aviation Fuel

Biomass-derived fuel pathways aligned with aviation decarbonisation requirements, developed with aerospace-sector partners.

Marine & CO₂-Neutral Fuel

Marine-grade and CO₂-neutral diesel outputs suited to shipping and port-operator decarbonisation programmes.

Agriculture, Food & Feed

Algal biomass fractions suitable for fertiliser, feed, and food-grade applications under a circular-economy model.

Pharma & Cosmetics

Higher-value biomass fractions directed toward pharmaceutical and cosmetic feedstock applications.

Water Regeneration

Wastewater-based cultivation returns treated process water, aligned with UN FAO guidance on water reuse.

Built with
Fujitsu
Traceability infrastructure
Microsoft
Platform & cloud alliance
Business Finland
Innovation & funding agency
ACCIÓ
Patent & innovation support
Traction

Built in the lab, proven on site.

4BlueTech's development path — from founding to pilot deployment to accelerator and institutional backing.

2023
Company founded
Founded in Barcelona by a team of engineers and PhDs, with laboratory operations established in Finland, following prior joint research.
2023–24
First PoC at Port of Barcelona
First proof of concept at the Port of Barcelona, in collaboration with Fundació BCN Port Innovation and Fujitsu.
2025
ERIA Acceleration Programme
Selected for the second edition of ERIA InnoHub's energy & telecom accelerator, run by the Estabanell group.
2025
Coordinator European biofuels consortium
Leading as Coordinator of several European CO₂-to-biofuels proposals with partners across the cement, aerospace, and geothermal sectors. EU programme Non-Funded
2025
Catalonia Exponential Leaders 2025
Named one of Catalonia's ten most disruptive companies by ACCIÓ (Generalitat de Catalunya), in the Catalonia Exponential Leaders 2025 cohort.
2025
1st Patent Submission
Ongoing support from ACCIÓ, the Catalan government's public innovation and business-funding agency helped us to register our 1st Patent.
2026
ALOBIOFERT — EU biofertilizers project
Selected under the I3-4 Biofertilizers open call (funded by the European Union / EISMEA) to validate next-generation biofertilizers from CO₂-derived microalgal biomass.
2026
Brand Official Registration
4BlueTech brand was registered by late 2025, and has been officialy approved as registered brand by EUIPO, European Intelectual Property Office.
Press & recognition

Where 4BlueTech has been covered.

Independent coverage, institutional recognition, and the public record of the platform's traction.

“Climate impact multiplies when CO₂ stops being a residue and becomes a raw material.”
Marc Cortès · CEO & co-founder — interviewed by BBVA, 2026
Press & partnership enquiries, or to request the media kit —
hello@4bluetech.com
IP & traceability

A patent-pending process. A traceable chain.

The Aloreactor's biological process and the platform's traceability layer are the two assets 4BlueTech is protecting and documenting.

  • Cultivation & fixation protocol — the microalgae and bacterial cultivation method used inside the Aloreactor, currently in the patent process with the support of ACCIÓ.
  • Combined CO₂ / NOx capture — the dual-gas capture approach applied within a single closed-circuit reactor.
  • Modular container integration — the engineering method for housing the full capture-to-X sequence within a standard 20 ft ISO footprint.
  • Batch traceability & ledger — the P1Vault data structure linking each capture batch to its finished biochar or fuel output, including tokenised carbon credit generation.
Status

4BlueTech's cultivation and fixation process is patent-pending, filed with the support of ACCIÓ (Catalonia's innovation agency). Patent number, jurisdiction, and filing date to be confirmed and inserted here once available for public disclosure.

Traceability

P1Vault records CO₂ and NOx ppm captured per minute at the unit level, with IoT connectivity enabling 24/7/365 monitoring and batch-level documentation for each output stream — the basis for tokenised carbon credit issuance in alliance with Fujitsu and Microsoft.

Company

An engineering team, not a marketing story.

Photo — founding team of engineers & PhDs
Photo — R&D laboratory, Finland
Photo — Barcelona HQ / Marc Cortès

4BlueTech was founded in August 2023 by a team of six engineers and doctoral researchers, following more than seven years of prior collaborative research. The company is headquartered in Barcelona, with laboratory operations in Finland.

Its mission is to help industrial operators, ports, and transport sectors measure, reduce, capture, and convert their CO₂ and NOx emissions — combining biotechnology, AI-driven monitoring, and a modular hardware format designed for real-world siting constraints, not laboratory conditions.

4BlueTech operates a Capture-as-a-Service model: operators contract for a defined capture capacity, delivered and documented by the container, rather than purchasing and maintaining fixed infrastructure.

  • FoundedAugust 2023
  • HeadquartersBarcelona, Spain
  • LaboratoriesFinland
  • Founding team6 engineers & PhDs
  • CEO & Co-founderMarc Cortès
  • ModelCapture-as-a-Service
  • Format20 ft ISO container
  • SectorsPorts, aviation, marine, cement, geothermal, agri
Carbon compensation · Subscription

Compensate what you can't yet cut.

Every month, we run captured CO₂ through our reactors on your behalf and issue you a certificate for the exact tonnage removed — traceable to the batch by P1Vault. Not a paper offset. Real carbon, actually captured, in your name.

Removal, not avoidance
Carbon is physically captured and converted — not an accounting promise to pollute less elsewhere.
Documented by P1Vault
Every tonne is logged per minute at the module and tied to your certificate's serial.
Cancel anytime
Monthly or annual. Scale your contribution up or down whenever you like.
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Certificate of Carbon Capture
This certifies that
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has funded the verified capture and conversion of
{{ tons }} tonnes CO₂ / year
removed at 4BlueTech capture modules and documented, batch by batch, on the P1Vault ledger.
Marc Cortès
CEO · 4BlueTech
P1VAULT
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Indicative pricing — final rates confirmed at programme launch. VAT where applicable.
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