Carbon Credit Assessment of Recovered Liquefied CO2 and Dry Ice
1.Green CO2 captured by urban Wet-TSA DACs has a higher value than gray CO2.
Carbon Credit Assessment of Recovered Liquefied CO2 and Dry Ice
Carbon Credits for Wet-TSA DAC + CO2 Compression, Cooling, Liquefaction, and Dry Ice Production System
The carbon credit value of Wet TSA + Liquefied Waste Heat Reuse + Air Conditioning Exhaust DAC is significant.
This is because it combines three values: "Emission Reduction Value (Carbon Credits)," "Product Value (Green CO₂/Green Dry Ice)," and "Urban Infrastructure Value (Recovery of Building Exhaust = CO₂ Derived from Human Respiration)."
Below, we will organize the value layers according to the structure of (Wet TSA + Liquefied Waste Heat Reuse + Air Conditioning Exhaust DAC). (Note: This information is generated by AI and should be used for reference only.)
1. Why "Energy Cost = Sales Cost" is Not True (Value is Higher)
✔ OKANO's system can be "Net Negative," therefore the product value exceeds the energy cost.
The reasons are as follows.
Carbon Credit
2. Special characteristics of urban DACs: Recovery source is "CO₂ derived from human respiration" = not additional emissions
Normal DACs absorb "CO₂ from the atmosphere," so they are evaluated as: Recovery amount - Device emissions = Net reduction amount.
However, OKANO's method is different.
✔ Air conditioning exhaust = CO₂ derived from human respiration is an "unavoidable emission" in cities, and recovery is treated as a 100% reduction.
In other words:
• Humans breathe → CO₂ emission (unavoidable)
• Building air conditioning exhausts → CO₂ is released into the outside air
• Wet-TSA DAC device recovers it → This reduces unavoidable emissions in cities
This is treated as a "reduction of naturally occurring emissions," similar to forest absorption, so the recovered CO₂ can be counted directly as a reduction amount.
3. Strengths of Wet TSA + Liquefied Waste Heat Reuse: Extremely Low CO2 Emissions OKANO's system:
• Reuses waste heat from compression and liquefaction as desorption energy
• Reuses residual air from liquefaction as DAC purge gas
• Utilizes the temperature and humidity of air conditioning exhaust (optimal temperature range for Wet-TSA)
This results in a larger amount of CO₂ recovered per unit of energy compared to conventional DAC.
In other words,
✔ Recovery amount ≫ Equipment emissions → Large net reduction → High carbon credit value
4. Price structure of carbon credits: Product value is "cost + reduction value"
Carbon credits are priced in the following ranges worldwide:
• EU-ETS (emissions allowance): €60-€90/t-CO₂
• VCM (Voluntary market): $20-$200/t-CO₂ (DAC is expensive)
• DAC credits (Frontier, etc.): $600-$1,000/t-CO₂
OKANO's urban DAC is highly likely to be classified as a "DAC credit".
In other words, the value of the product is:
✔ Product value = Green CO₂ (liquefied/dry ice) + carbon credit value
What's important here is:
✔ Carbon credit value exists independently of "energy cost".
Even if the equipment emits some CO₂, if the recovery amount exceeds it, credits are generated as a "net reduction"
5. The value of OKANO's system can be expressed mathematically as follows:
Value = Product Price (CO₂/Dry Ice) + Carbon Credit Value - Energy Cost
Here,
• Product Price: Market price of liquefied CO₂ or dry ice
• Carbon Credit Value: Net reduction amount × Market price
• Energy Cost: CO₂ emissions from electricity and heat × Emission Factor
In OKANO's method:
• Large net reduction amount
• Low energy cost due to waste heat reuse
• Urban DACs are easy to scale without requiring additional infrastructure
As a result,
✔ Value significantly exceeds energy cost.
6. Additional Value in the Dry Ice Market: Logistics, Food, and Drone Delivery As OKANO pointed out, dry ice:
• Becomes lighter over time (increases transport efficiency)
• Does not produce waste
• Increased demand for frozen foods, pharmaceuticals, and drone delivery
• Can be produced near cities (reduces transport CO₂)
Here too, the reduction effect on LCA accumulates.
In other words,
✔ The product itself has value as a “low-carbon logistics infrastructure.”
7. Urban DAC + Liquefied CO₂ is Valued as “Urban Emission Reduction Infrastructure” OKANO's method is not merely product manufacturing,
✔ It is valued as an “urban carbon recycling infrastructure” that captures unavoidable urban emissions (breathing + air conditioning exhaust).
Conclusion: OKANO's system is not just about the "value of energy costs," but rather a high-value-added product.
Reasons summarized:
1. Human respiration-derived CO₂ is an unavoidable emission → Recovery results in a 100% reduction.
