Paper and Pulp
Cut lime-kiln CO₂ at the source, safely and efficiently. With Galloxol® CO₂ capture (and Hybrisol® where mills also upgrade biogas), paper & pulp plants reduce stack emissions and route CO₂ to local users, liquid sales, or permanent storage for credits.
How it works?
Step-by-step
Turn boiler/CHP/lime-kiln exhaust into a dependable CO₂ utility. The steps cover inlet conditioning, clean capture to mill/industrial grade, buffering through reel changes, and optional liquid storage and distribution.
Source the CO₂ (boilers/CHP/lime kiln)
We tap CO₂-containing exhaust from power boilers, CHPs or lime kilns and route it to the capture train. The inlet is matched to temperature, flow and alkalinity/chloride exposure.
Quench & condense (protect dryers and exchangers)
Quench lowers temperature quickly; condensers remove moisture and acid vapour. Demisters minimise carry-over so exchangers, dryers and downstream equipment stay clean.
Capture & purify (mill-grade to food/industrial)
Galloxol® selectively absorbs CO₂. Product is dried and polished (low O₂, low total hydrocarbons as CH₄, particle-free) for internal uses (pH control, inerting) or sale to nearby industries.
Buffer storage (align with batch and reel changes)
A gas buffer rides through start-stop sequences, sheet breaks and grade changeovers. Online analysers and auto-divert protect spec; QA logs remain straightforward.
(Optional) Liquefaction & compact storage
Where footprint or multi-hall supply is a concern, liquefaction condenses CO₂ to liquid for small, centralised tanks and predictable inventory.
Distribute & integrate
Tie CO₂ into mill utilities (pH control, inerting, water treatment) or load to tankers for partners. On-site CO₂ improves resilience and reduces purchase exposure.
From idea to final delivery
Our complete process at a glance
This visual guide walks you through each phase, showing how we turn concepts into results.
Yield impact
Up to 90% kiln CO₂ captured
Use this as the big number in the “Yield impact” block. 90% capture is the standard design point for amine-based post-combustion CCS and is explicitly modeled for pulp-mill lime kilns in recent literature. Some studies/design tools show cases up to ~90%, but 80% is the conservative, widely accepted headline.
Unique Selling Points
Key Advantages
Paper & Pulp mills adopt this approach to cut measured CO₂, keep community trust, and turn CO₂ into a dependable product stream, without re-engineering the kiln or recausticizing line. A modular design scales capacity as volumes grow, and heat-integrated, low-pressure operation keeps €/t predictable across seasons. Mass-balanced, QA-logged product simplifies audits, contracts and (where applicable) carbon-credit claims.
Built for lime-kiln duty
Neighbour-safe operation
Drop-in integration
Measured, reportable abatement
Predictable OPEX
Multiple outlets
Benefits
What your mill gains
Turn kiln CO₂ into a reliable revenue-aligned stream without compromising core mill performance. Each benefit below includes extra implementation detail you can keep or trim to fit your tabs.
Capture at the lime kiln, drop-in to the recausticizing loop
The lime kiln is the mill’s dominant point source of CO₂. Galloxol® is engineered to tie in downstream of existing APC (ESP/wet scrubber) and the ID fan on the lime-kiln stack, where CO₂ is concentrated and duct access is practical. That means no re-engineering of the white/green-liquor circuit and no interference with the CaCO₃ ↔ CaO cycle.
Compact, craneable skids shorten outage time: standard tie-points (bypass to stack, isolation dampers, utilities, DCS alarms) let you install during a planned shutdown and ramp back to design load quickly. Materials and filtration are selected for kiln dust, temperature swings, and start/stop behavior typical of mills.
Multiple CO₂ outlets, turn compliance into income
Once captured and purified, CO₂ becomes an asset. You can sell it locally in gas form via short pipelines to nearby users, or liquefy it for trucked deliveries to regional buyers. This creates an additional income stream from equipment you already operate, improving the business case for decarbonization.
If policy or geography favors sequestration, the same product stream can be sent to underground storage (e.g., saline formations) to generate carbon-credit revenue where programs allow. Outlet flexibility (gas, liquid, or storage) lets you hedge markets, shift volumes seasonally, and grow offtake without redesigning the capture core.
Audit-ready MRV for ETS & ESG
Galloxol® provides measured, reportable abatement. Inline metering, gas analysers, and automated mass-balance give you a traceable chain from kiln flue → capture → outlet. You get hourly/daily reports that satisfy environmental regulators and buyer audits, and a data package suited for corporate ESG disclosures.
Calibration routines, tamper-evident logs, and export to your historian/ESG platform keep evidence clean and audit cycles short. For storage projects, the documentation aligns with carbon-credit methodologies so you can substantiate claims without building custom systems from scratch.
Predictable OPEX with heat-smart operation
Choose the mode that fits your site: HIGH-temp integration (maximize thermal recovery from kiln/utility heat) or LOW-temp operation (reuse low-grade or renewable heat already on site). Either way, low-pressure circulation and deep heat integration keep €/t CO₂ stable across seasons and tariff changes.
The solvent loop is non-volatile (no vapour phase), minimizing make-up and protecting product purity. Regeneration energy, compression duty, and utilities are engineered for mill realities, you can stage upgrades (e.g., add a liquefier later) without disturbing the capture energy balance.
Neighbour-safe, compact installation
Brownfield mills are tight. The system uses compact skids with defined service clearances that fit around pipe bridges and buildings, plus acoustic enclosures and visual screening to meet town-adjacent site limits. Layouts respect setback lines, noise ordinances, and sensitive waterways common in the sector.
Chemistry and process safety support permits: no vapour-phase solvent means negligible solvent carry-over, simpler handling, and a cleaner CO₂ product. Enclosures, monitored drains, and best-practice ventilation keep your safety case straightforward and your community relationships strong.
Scale as targets grow, plus Hybrisol® synergy
Start with today’s kiln duty and add trains as decarbonization targets rise or offtake expands. Liquefaction, storage, and distribution modules are plug-and-play, so you can defer capex until volumes are contracted. This avoids stranded assets and maintains uptime while you scale.
The lime kiln is the mill’s dominant point source of CO₂. Galloxol® is engineered to tie in downstream of existing APC (ESP/wet scrubber) and the ID fan on the lime-kiln stack, where CO₂ is concentrated and duct access is practical. That means no re-engineering of the white/green-liquor circuit and no interference with the CaCO₃ ↔ CaO cycle.
Compact, craneable skids shorten outage time: standard tie-points (bypass to stack, isolation dampers, utilities, DCS alarms) let you install during a planned shutdown and ramp back to design load quickly. Materials and filtration are selected for kiln dust, temperature swings, and start/stop behavior typical of mills.
Once captured and purified, CO₂ becomes an asset. You can sell it locally in gas form via short pipelines to nearby users, or liquefy it for trucked deliveries to regional buyers. This creates an additional income stream from equipment you already operate, improving the business case for decarbonization.
If policy or geography favors sequestration, the same product stream can be sent to underground storage (e.g., saline formations) to generate carbon-credit revenue where programs allow. Outlet flexibility (gas, liquid, or storage) lets you hedge markets, shift volumes seasonally, and grow offtake without redesigning the capture core.
Galloxol® provides measured, reportable abatement. Inline metering, gas analysers, and automated mass-balance give you a traceable chain from kiln flue → capture → outlet. You get hourly/daily reports that satisfy environmental regulators and buyer audits, and a data package suited for corporate ESG disclosures.
Calibration routines, tamper-evident logs, and export to your historian/ESG platform keep evidence clean and audit cycles short. For storage projects, the documentation aligns with carbon-credit methodologies so you can substantiate claims without building custom systems from scratch.
Choose the mode that fits your site: HIGH-temp integration (maximize thermal recovery from kiln/utility heat) or LOW-temp operation (reuse low-grade or renewable heat already on site). Either way, low-pressure circulation and deep heat integration keep €/t CO₂ stable across seasons and tariff changes.
The solvent loop is non-volatile (no vapour phase), minimizing make-up and protecting product purity. Regeneration energy, compression duty, and utilities are engineered for mill realities, you can stage upgrades (e.g., add a liquefier later) without disturbing the capture energy balance.
Brownfield mills are tight. The system uses compact skids with defined service clearances that fit around pipe bridges and buildings, plus acoustic enclosures and visual screening to meet town-adjacent site limits. Layouts respect setback lines, noise ordinances, and sensitive waterways common in the sector.
Chemistry and process safety support permits: no vapour-phase solvent means negligible solvent carry-over, simpler handling, and a cleaner CO₂ product. Enclosures, monitored drains, and best-practice ventilation keep your safety case straightforward and your community relationships strong.
Start with today’s kiln duty and add trains as decarbonization targets rise or offtake expands. Liquefaction, storage, and distribution modules are plug-and-play, so you can defer capex until volumes are contracted. This avoids stranded assets and maintains uptime while you scale.
Carbon Capture for small and medium enterprises
Looking to capture and reuse your own CO₂ ?
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Client success
Real results in real workplaces
Customers use our systems to secure CO₂ supply, stabilise operating costs and recover more energy from existing assets. Explore our cases to see how similar plants solved supply risk and improved performance.
Proven Impact
Cut carbon, grow margins
Frequently asked questions
Need more clarity?
Below you’ll find quick answers to the questions we hear most, from feed-gas limits to maintenance routines. Expand any item for details; if you don’t see your question, our engineers are one click away.
All frequently asked questionsGalloxol® ties into the lime-kiln flue gas downstream of existing air-pollution control (ESP or wet scrubber) and typically after the ID fan. This intercepts a high-CO₂ stream without touching the white-/green-liquor cycle, so your recausticizing chemistry and the CaCO₃ ↔ CaO loop remain unchanged.
Standard connections include a duct branch with isolation/bypass dampers, utilities (steam/heat, electricity, cooling), and DCS interfaces for alarms and interlocks. The goal is to keep integration simple, outage windows short, and kiln reliability intact.
Design point is ~90% CO₂ capture at the kiln stack, with stable operation across normal mill load swings. Higher rates may be engineered case-by-case, but 90% provides a robust baseline for compliance and auditing while protecting uptime.
Product CO₂ is high-purity (≥99%) with low moisture. Conditioning and polishing options are available when buyers require tighter specs or when feeding a liquefier. Specs are set jointly with your offtake or storage pathway so the same capture core can serve multiple outlets.
Yes. You can sell CO₂ locally in gas form (short pipeline to nearby users) or liquefy it for trucked distribution to regional customers. Both routes transform a former emission into an additional income stream alongside your primary energy source.
If your strategy favors sequestration, the same CO₂ can be sent to underground storage to generate carbon-credit revenue where programs allow. Many mills hedge by enabling both: near-term liquid sales while preparing for storage credits as policy and infrastructure mature.
You can run in HIGH-temperature mode to maximize thermal integration with available process heat, or in LOW-temperature mode to reuse low-grade or renewable heat on site. Both modes are designed to keep €/t CO₂ predictable and to track energy tariff changes without shocks.
The solvent loop is sealed and non-volatile (no vapour phase), reducing make-up consumption and protecting product purity. Compression and utilities are sized for kiln realities; optional modules (like liquefaction) can be added later without disturbing the capture energy balance.
Brownfield pulp & paper sites are tight and often near towns. The system uses compact, craneable skids, acoustic enclosures, and visual screening to meet noise and sightline limits while fitting around pipe bridges and existing buildings.
Chemistry choices simplify permitting: with no vapour-phase solvent, there’s negligible solvent carry-over and a clear safety case. Drain segregation, monitored sumps, and best-practice ventilation are baked in so neighborhood expectations and waterway sensitivities are respected.
Capture trains include bypass and isolation so the kiln can run (or stop) independently. During planned outages, modules are designed for quick lock-out/tag-out; during unplanned trips, the system goes to a safe state without creating back-pressure or knock-on effects.
On restart, warm-up routines and analyzer checks are automated to return to spec quickly. Wear parts and inspection points are accessible so typical shutdown durations cover both kiln and capture maintenance with minimal added downtime.
Galloxol® provides audit-ready MRV with inline flow/analyzers and automated mass-balance from kiln flue → capture → outlet. You get time-stamped datasets and reports suitable for environmental regulators, customers, and internal ESG disclosures.
Data export plugs into your historian and reporting tools. For storage projects, documentation can align with carbon-credit methodologies, minimizing custom work and shortening verification cycles.
Yes. Hybrisol® upgrades biogas to biomethane and yields an additional CO₂ stream that can share the same outlets, short-pipe consumers, liquefaction for truck, or permanent storage. That means one platform covers kiln flue CO₂ and biogenic CO₂ together.
Combining sources improves utilization of downstream assets (e.g., a shared liquefier) and consolidates MRV. You scale abatement and revenue without duplicating infrastructure or databases.
The process uses a sealed loop with no vapour-phase solvent, which avoids entrainment and simplifies handling requirements. Product CO₂ is clean by design, and the capture area includes gas detection, ventilation, and clear access for operators.
Operating procedures and training mirror mill standards: confined-space protocols, hot-work permits, and LOTO. Consumables, waste streams, and spares are specified up front so EHS and procurement teams have predictable routines.
Projects progress through feasibility and offtake/storage selection, then front-end design, detailed engineering, fabrication, site preparation, installation, and commissioning. Early surveys confirm tie-ins (duct, utilities, DCS), plot fit, traffic/craning, and permitting scope.
Modularization keeps the on-site phase short. Most construction occurs off-site; on site you handle foundations, tie-ins, and setting skids. Commissioning includes performance testing, MRV validation, and operator training so you go live with audit-ready data from day one.
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Tell us about your operation and decarbonisation plans. Within a few business days an engineer will get back to you with clear, tailored advice. No sales pressure, only expertise on CO₂ capture, biogas upgrading and incentives.
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