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The raw material of dry ice is LCO₂ (liquid carbon dioxide).: During the dry ice manufacturing process, more than 60% is released into the atmosphere.
CO₂ released into the atmosphere is recaptured, compressed and frozen to produce liquid carbon dioxide, and it is then put back into the dry ice manufacturing process, significantly reducing dry ice production costs.
Victex designs, manufactures, and supplies optimal recovery systems to meet customer needs, from small-capacity modular CO₂ recovery systems to mid- to large-capacity packaged unit-type CO₂ recovery systems.

Difference in LCO₂ consumption

Difference in LCO₂ usage	Monthly production	Production rate	LCO₂ consumption	Energy reduction rate (Compared to not using the recovery system)
CO₂ recovery system not used	720 ton	2.5 : 1	1,800 ton	-
Pellet compression block maker (CO₂ recovery system used)	720 ton	1.7 : 1	1,224 ton	32% reduced
Victex nugget maker (using CO₂ recovery system)	720 ton	1.2 : 1	864 ton	52% reduced

By re-capturing and liquefying carbon dioxide (CO₂) leaked during dry ice production using the CO₂ recovery system, it is possible to reduce LCO₂ usage and production cost by up to 52% or more.
* Based on dry ice production: 1 ton / 1 unit per hour, 24 hours (days), 30 days (months) operating conditions

Modular unit (small facility)

Easy maintenance and installation due to miniaturization and simplified structure

Reduction of energy required for CO₂ liquefaction by using a plate heat exchanger with high heat transfer efficiency
Using CO₂ Air Cooler and air-cooled refrigerant condenser
Prevent excessive temperature and pressure rise by using multi-stage CO₂ compressor and chiller
Improving compressor efficiency by using a suction line accumulator with a heat exchange function in a refrigeration unit
It is possible to increase capacity through parallel connection and does not require complicated cooling water piping, so it is optimized for small-scale dry ice production or large-scale hydrogen production bases.

Specifications	MRU-150K	MRU-300K	MRU-500K
Standard CO₂ liquefaction capacity	150kg / h	300kg / h	500kg / h
Electrical specifications (V × Hz × Ph)	380V / 60Hz / 3	380V / 60Hz / 3	380V / 60Hz / 3
Power	30Kw	37Kw	55kW
Size (L × W × H / mm)/td>	2000 × 1350 × 1600	2420 × 1400 × 1650	2600 × 1450 × 2160
Weight	about 1,070kg	about 1,350kg	about 1,800kg
Refrigerant	R404A	R404A	R507A / NH3
Oil Type	PAO / ISO VG68	PAO / ISO VG68	PAO / ISO VG68
CO₂ temperature (℃)	-65 ~ 40 (BOG) / -20(LCO₂)	-65 ~ 40 (BOG) / -20 (LCO₂)	-65 ~ 40 (BOG) / -20 (LCO₂)

Package unit (medium-large equipment)

CO₂ Compressor
CO₂ freezer

Condensate requires a separate cooling facility
Possible to supply package units with CO₂ liquefaction capacity optimized for site conditions

Specifications	IRU-500K	IRU-750K	IRU-1000K	IRU-1500K
Standard CO₂ liquefaction capacity (kg/h)	500	750	1,000	1,500
Electrical specifications (V × Hz × Ph)	380V / 50~60Hz / 3	380V / 50~60Hz / 3	380V / 50~60Hz / 3	380V / 50~60Hz / 3
Power (Compressor / Refrigerator)	55Kw / 45Kw	75kw / 75kw	90kw / 95kw	132kw / 132kw
Size (L × W × H / mm) (Compressor / Refrigerator)	5,000 × 2,950 × 3,000 / 4,100 × 2,700 × 3,000	5,000 × 2,950 × 3,000 / 4,500 × 2,700 × 2,900	5,000 × 3,100 × 3,000 / 4,500 × 2,800 × 2,890	5,000 × 3,400 × 3,000 / 4,800 × 3,000 × 3,000
Weight (compressor / freezer)	about 7,000kg / 6,900kg	about 9,500kg / 9,000kg	about 11,000kg / 10,000kg	about13,000kg / 10,000kg
Cooling water required (Compressor / Refrigerator)	20㎥/h / 5㎥/h	35㎥/h / 7.5㎥/h	50㎥/h / 10㎥/h	70㎥ / h / 15㎥/h
Refrigerant	R507A / NH3	R507A / NH3	R507A / NH3	R507A / NH3
Oil Type	PAO / ISO VG68	PAO / ISO VG68	PAO / ISO VG68	PAO / ISO VG68
CO₂ temperature (℃)	-65 ~ 40 (BOG ) / -20 (LCO₂)	-65 ~ 40 (BOG ) / -20 (LCO₂)	-65 ~ 40 (BOG ) / -20 (LCO₂)	-65 ~ 40 (BOG) / -20 (LCO₂)

Applied workplace

Yongin C Company CO₂ Revert Recovery System
(Introduced in June 2021)
Gimpo K Company CO₂ Revert Recovery System
(Introduced in July 2022)

PRODUCT

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CO₂ Revert Recovery System

Difference in LCO₂ consumption

Modular unit (small facility)

Package unit (medium-large equipment)

Applied workplace