CO₂ stream qualification
Flow profile, composition, contaminants, pressure, temperature and operating continuity define the real process boundary.
- Composition
- Variability
- Interfaces
Reference mineral photograph · Siim Sepp / CC BY-SA 3.0
Carbonation-as-a-Service
Early-stage venture · Business planning & feasibility
Turning CO₂ into permanent industrial value.
We are developing a mineral carbonation service that connects captured CO₂, suitable mineral feedstocks and process engineering. From feasibility to a future industrial pilot.
From captured CO₂ to traceable mineral products
- 01Qualify CO₂
Source & input conditions
- 02Mineralize
Controlled modular reaction
- 03Stabilize
Permanent solid form
- 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.
The intended process connects a qualified CO₂ stream with compatible minerals. Its configuration will follow feedstock testing and site-specific engineering.
PROCESS / CONCEPT 01Conceptual flow · equipment configuration to be defined
Two inputs. One mineral transformation.
01 / GASCaptured CO₂
Composition, flow and conditioning to be qualified.
02 / SOLIDMineral feedstock
Reactivity, availability and suitability to be tested.
03 / TRANSFORMATIONMineral carbonation
Reaction conditions and material balance to be validated.
04 / OUTPUTCarbonated material
Composition, properties and destination to be assessed.
Solid mineral formEngineering 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.
Mineral feedstock screening
Chemical composition, reactivity, particle size, availability and logistics determine whether a local material is technically suitable.
- Reactivity
- Supply
- Logistics
Reaction engineering
Mass transfer, mixing, residence time, conditioning and utilities are configured around the selected CO₂ and mineral streams.
- Kinetics
- Mass transfer
- Utilities
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.
Third-party facility, not a P9 installation. P9’s initial target is sites with a separated CO₂ stream.
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
Separated CO₂ stream
A concentrated stream is available or can be integrated downstream of an existing separation stage.
Predictable operation
Flow and composition are sufficiently stable to support continuous or scheduled industrial operation.
Compatible minerals
Reactive natural minerals or suitable alkaline residues can be qualified within a practical supply radius.
Industrial interfaces
Utilities, footprint, storage and material-handling constraints can be incorporated into the site.
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 ↗Site and process definition
Characterization of the CO₂ stream, mineral feedstock, utilities, interfaces and operating objectives.
Validate before deployment
Testing of the mineral candidate, definition of the operating window and closure of the preliminary material balance.
Modular process installation
Configuration, fabrication and commissioning of the reaction system within the existing industrial environment.
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.
The intended environmental benefit must be assessed through chemistry, material and energy balances, and a qualified destination for the output.
Permanent by chemistry
CO₂ is converted into stable carbonate compounds through a controlled mineral reaction.
Traceable by design
Process data, material balance and output characterization are built into the verification path.
Modular by architecture
Standardized process units are configured around the emitter, feedstock and required capacity.
Conceptual illustrations · Chemistry / Verification / Architecture
Verification framework
- CO₂ input
- Process conditions
- Material balance
- Output characterization
What enters the system
Quantified CO₂ and mineral streams establish the starting point for the material balance.
How the reaction is operated
Recorded process conditions connect the result to a defined and repeatable operating window.
What leaves the system
Carbonate content and physical properties support technical qualification of the solid output.
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 is currently in the business-plan phase. The steps below describe the proposed development path: laboratory testing, pilot operation and industrial deployment have yet to be demonstrated.
Current stage / business planning and feasibility
- 01
Screen
Define the CO₂ source, mineral candidate, utilities, site constraints and intended output route.
- 02
Test
Characterize the materials and validate reaction behaviour under controlled conditions.
- 03
Engineer
Close the mass balance, select the process configuration and define the integration package.
- 04
Pilot
Demonstrate continuity, operability, material quality and the monitoring framework on a real site.
- 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.comPhotography & sources
Real reference photographs, reproduced without AI generation or retouching. They do not show P9 facilities, selected feedstocks or validated products.
- Olivine sand from Hawaii Island — Siim Sepp, 2011. CC BY-SA 3.0. Displayed with responsive framing and a readability overlay; original image file unchanged.
- Fraddon Biogas Plant, Cornwall — John Fricker, 2017, via Geograph / Wikimedia Commons. CC BY-SA 2.0. Responsive framing; original image file unchanged.
