Carbonation-as-a-Service

Turning CO₂ into permanent industrial value.

Modular engineering systems that convert captured carbon into stable, traceable materials — delivered as a complete industrial service.

From captured CO₂ to traceable mineral products

  1. 01Capture CO₂

    Conditioned input stream

  2. 02Mineralize

    Controlled modular reaction

  3. 03Stabilize

    Permanent solid form

  4. 04Verify

    Traceable material output

P9 / 01

Industrial decarbonization, engineered

Not another carbon claim.
A physical transformation.

P9 Engineering is developing modular mineral carbonation systems for industrial emitters. The goal is straightforward: connect captured CO₂, compatible mineral feedstocks and process engineering in one accountable industrial service.

More than equipment

The client buys a result-oriented service, not another isolated process unit.

P9 is conceived as the accountable link between the emitter, the carbonation process, the mineral supply chain and the destination of the resulting material. The system is designed for installation at or close to the CO₂ source, reducing unnecessary transport and keeping the industrial interfaces under direct control.

The differentiator is not a claim to proprietary chemistry. It is the ability to combine process engineering, modular equipment, operation, monitoring and local output valorization in one coherent model that can be replicated after technical validation.

01Service

Not a consulting report

02Integration

Not a standalone machine

03Local chain

Not CO₂ transport alone

The technology

From gas stream
to stable material.

A modular process architecture designed around control, material traceability and integration with existing industrial assets.

01

Input

Captured CO₂

Stream
Conditioned
Interface
Site specific
02
Controlled reaction

P9 / Modular carbonation unit

03

Output

Mineral material

Form
Stable solid
Record
Traceable batch
CO₂
Mineral output

Engineering basis

Four layers determine whether the process is technically credible.

Mineral carbonation is chemically established. Industrial viability depends on how the real streams, reaction conditions and material destination fit together.

01

CO₂ stream qualification

Flow profile, composition, contaminants, pressure, temperature and operating continuity define the real process boundary.

  • Composition
  • Variability
  • Interfaces
02

Mineral feedstock screening

Chemical composition, reactivity, particle size, availability and logistics determine whether a local material is technically suitable.

  • Reactivity
  • Supply
  • Logistics
03

Reaction engineering

Mass transfer, mixing, residence time, conditioning and utilities are configured around the selected CO₂ and mineral streams.

  • Kinetics
  • Mass transfer
  • Utilities
04

Output qualification

Mass balance, carbonate content, physical properties and intended destination form the evidence chain for the resulting material.

  • Mass balance
  • QA
  • Destination

Application fit

Start where the industrial boundary is already favourable.

P9 does not treat every emitter as an identical opportunity. A credible project starts by checking the physical streams, the site and the output pathway.

Initial market01 / Northern Italy

Priority application

Biomethane upgrading plants

Upgrading already separates a CO₂-rich stream from biomethane. This removes one major process boundary and makes the site a more rational starting point for mineral carbonation than a conventional biogas plant without separation.

CO₂ condition
Already separated
Emitter profile
Small to medium scale
Deployment logic
On-site modular system
Value chain
Local and traceable

Five screening conditions

01

Separated CO₂ stream

A concentrated stream is available or can be integrated downstream of an existing separation stage.

02

Predictable operation

Flow and composition are sufficiently stable to support continuous or scheduled industrial operation.

03

Compatible minerals

Reactive natural minerals or suitable alkaline residues can be qualified within a practical supply radius.

04

Industrial interfaces

Utilities, footprint, storage and material-handling constraints can be incorporated into the site.

05

Output pathway

The carbonated material has a technically and commercially credible destination to be validated.

Important boundary

A raw biogas stream is not equivalent to an upgrading off-gas. If CO₂ separation is not already present, it becomes an additional process stage that must be engineered and evaluated.

The service model

Carbonation,
as a service.

One technical partner across design, deployment and operating performance — structured around the industrial site, not around a standalone machine.

Start a technical discussion
01 / Engineer

Site and process definition

Characterization of the CO₂ stream, mineral feedstock, utilities, interfaces and operating objectives.

02 / Deploy

Validate before deployment

Testing of the mineral candidate, definition of the operating window and closure of the preliminary material balance.

03 / Integrate

Modular process installation

Configuration, fabrication and commissioning of the reaction system within the existing industrial environment.

04 / Operate

Performance, maintenance and outputs

Operational support, process data, maintenance coordination and development of the evidence and destination path for the carbonated material.

Integrated responsibility

One service model across the full operating chain.

Engineering

Process definition, equipment configuration, interfaces and commissioning.

Operations

Monitoring logic, maintenance coordination and operating support.

Materials

Feedstock qualification, logistics and controlled handling.

Valorization

Output characterization and development of a credible commercial destination.

Designed impact

Industrial value that
can be examined.

No decorative sustainability layer. The environmental proposition is tied to chemistry, mass balance and a real material output.

01

Permanent by chemistry

CO₂ is converted into stable carbonate compounds through a controlled mineral reaction.

02

Traceable by design

Process data, material balance and output characterization are built into the verification path.

03

Modular by architecture

Standardized process units are configured around the emitter, feedstock and required capacity.

Verification framework
  • CO₂ input
  • Process conditions
  • Material balance
  • Output characterization
Measure

What enters the system

Quantified CO₂ and mineral streams establish the starting point for the material balance.

Control

How the reaction is operated

Recorded process conditions connect the result to a defined and repeatable operating window.

Characterize

What leaves the system

Carbonate content and physical properties support technical qualification of the solid output.

Trace

Where the material goes

Batch records and destination evidence complete the chain from captured carbon to final use.

Pilot before scale

Evidence before replication.

P9 follows technical gates because site-specific reaction performance and continuous operation must be demonstrated, not assumed.

Development stage / industrial validation path

  1. 01

    Screen

    Define the CO₂ source, mineral candidate, utilities, site constraints and intended output route.

  2. 02

    Test

    Characterize the materials and validate reaction behaviour under controlled conditions.

  3. 03

    Engineer

    Close the mass balance, select the process configuration and define the integration package.

  4. 04

    Pilot

    Demonstrate continuity, operability, material quality and the monitoring framework on a real site.

  5. 05

    Scale

    Replicate the validated architecture with site-specific capacity and interfaces.

What the pilot must prove

Stable operation, effective material conversion, realistic utility demand, safe solids handling, repeatable output properties and a defensible monitoring method.

Technical questions

The boundaries matter.

A serious decarbonization project starts by being explicit about what is known, what depends on the site and what still has to be validated.

01Is P9 selling a carbonation machine?

No. The intended model is a managed industrial service. P9 defines and integrates the process, supports operation and maintenance, coordinates the material chain and structures the output valorization route. The equipment is one part of that service, not the entire proposition.

02Is every biogas plant an immediate fit?

No. The initial focus is on biomethane upgrading plants where a CO₂-rich stream is already separated. A conventional biogas plant would require an additional separation stage, changing both the technical boundary and the economics.

03What happens to the CO₂?

Carbon dioxide reacts with calcium- or magnesium-bearing materials to form stable carbonate compounds. The carbon is stored in a solid mineral form rather than kept as a compressed gas.

04What must be validated before an industrial installation?

The specific feedstock reactivity, continuous operating window, utility demand, material handling, output properties and destination must all be validated for the actual site. P9 therefore uses technical gates rather than assuming that one configuration fits every emitter.

05Where does P9 intend to start?

The first development phase is focused on small and medium industrial emitters in Northern Italy, where shorter material chains can support both practical logistics and local circular-economy partnerships.

Start with the engineering

Have a CO₂ stream?
Let’s test the fit.

Bring the process data. We’ll start by defining the technical boundary conditions for a potential pilot.

Flow and operating hoursCO₂ compositionPressure and temperatureAvailable minerals or residuesUtilities and site constraints
Discuss your application info@p9engineering.com