Bolt-on CO2 Recovery from Dry Ice Production
Increase your dry ice production by up to 70% while using the same amount of liquid CO2. Our bolt-on CO2 recovery systems capture vented gas during dry ice manufacturing and recycle it back into the production process.
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Recover, Recycle, Save
Conventional dry ice production loses a large fraction of liquid CO2 as vented gas. A bolt-on recovery system captures that vent gas, re-liquefies it, and feeds it back into the dry ice press — closing the loop without changing the dry ice press itself.
- 70% more output — from the same liquid CO2 supply
- Conversion ratio improved — from 2.2 lbs LCO2 : 1 lb dry ice → 1.3 lbs LCO2 : 1 lb dry ice
- 90-95% final conversion rate — vs standard ~45%
- 50% reduction in liquid CO2 costs
- 135 kWh or less per ton of CO2 recovered
- ROI in 12 months or less
- No impact on dry ice quality — closed-loop, contamination-free
- Modular design — start small and scale up
How It Works
Step 1 — Capture
Vent gas from the dry ice press is collected at low pressure instead of being released to atmosphere.
Step 2 — Clean & Dry
Captured gas passes through filtration and an optional dryer module to remove moisture and contaminants.
Step 3 — Re-liquefy
The cleaned gas is compressed and liquefied back to LCO2 at ~135 kWh or less per ton recovered.
Step 4 — Recycle
Recovered LCO2 is fed back into the dry ice press, closing the loop and lifting overall conversion to 90-95%.
With vs Without Bolt-on Recovery
| Parameter | Without Recovery | With Bolt-on Recovery |
|---|---|---|
| LCO2 per kg dry ice | ~2.2 lbs : 1 lb | ~1.3 lbs : 1 lb |
| Final conversion rate | ~45% | 90-95% |
| Dry ice output (same LCO2 supply) | Baseline | +70% |
| Liquid CO2 cost | Baseline | -50% |
| Vent loss to atmosphere | Significant | Minimal — closed loop |
| Energy per ton recovered | — | ≤ 135 kWh/ton |
| Dry ice quality | Standard | Unchanged — contamination-free |
Key Specifications
| Parameter | Specification |
|---|---|
| System type | Bolt-on, modular, skid-mounted |
| Final conversion rate | 90-95% |
| Energy consumption | ≤ 135 kWh per ton CO2 recovered |
| Output uplift | Up to 70% more dry ice from same LCO2 |
| LCO2 savings | Up to 50% reduction |
| ROI | 12 months or less, depending on plant size |
| Compatibility | Compatible with most existing dry ice presses |
| Scalability | Modular — start small, expand as production grows |
Optional Add-ons
CO2 Gas Dryer System
Dries the recovered gas to maintain LCO2 quality and protect downstream equipment from moisture-related issues.
Energy Efficiency Package
Optimised compression, heat recovery and control logic — reduces overall energy consumption by up to a further 10%.
Key Benefits
- Up to 70% more dry ice from the same LCO2 supply
- 50% reduction in liquid CO2 costs
- Conversion rate lifts from ~45% to 90-95%
- ROI typically inside 12 months
- Closed-loop — no impact on dry ice quality
- Modular design scales with your plant
- Compatible with existing dry ice presses
- Lower vented emissions to atmosphere
Get Started with Bolt-on CO2 Recovery
Tell us your current dry ice production and LCO2 consumption — we will size a system and estimate your savings and ROI.
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