Produce pellets at a rate of 20 to 180 kg/h with liquid CO2 savings
The new pneumatic granulator PU20-III (third generation) allows the production of high-density glass-like granules of dry ice with a diameter of 20 mm using compressed air at 6 atm with liquid CO2 savings from 7% to 20% using unique technologies.
This electro-pneumatic machine includes a patented technology (Patent for invention of the Russian Federation No. 2784059 dated 11/23/2022), which makes it possible to produce dry ice granules with unparalleled efficiency and reliability, due to the energy of compressed air.
A new technology in the history of the dry ice industry for producing dry ice. Individual pressing of granules in a gas cushion by washing with liquid CO2.
The pressure of pressing snow CO2 is 160-180 atm, which is enough to obtain a glassy structure of dry ice granules. Such pressing pressure is obtained from compressed air of 5 atm due to multiplication in a pneumatic cylinder with a piston of 125 mm in diameter and a rod of 20 mm in diameter.
PU20-III Pneumatic Pelletizer
Built-in liquid-gas heat exchanger
No heating during pressing and extrusion
No heating from the environment or hydraulics
No losses during warm start
Partial performance shutdown (malfunction of one of the modules)
Highest level of independence from a specialized hydraulic system, as the granulator can be connected to any compressor.
10-fold increase in theoretical fault tolerance through the use of pneumatic components only
The snow filters in the compression chamber are reinforced with steel, so they can withstand the pressure of liquid CO2 and even the pressure of compression.
The pneumatic pelletizer uses a closed pressing chamber, so dry ice does not escape when the pressing chamber cools down.
No one-time losses of liquid CO2 from heating warm equipment units
No permanent loss of liquid CO2 due to heating during pressing and extrusion
Built-in heat exchanger for transferring cold CO2 vapors to liquid CO2
No snow loss due to ambient air heat and hydraulic cylinder
The PU20-III pelletizer operates on external compressed air as a pneumatic tool, which greatly simplifies the operation of the IRBISTEKH pelletizer in terms of power unit maintenance.
By using pneumatics with a working pressure of 6 atm instead of hydraulics with a working pressure of 150–200 atm in the PU20-III pelletizer, the theoretical probability of system failure as a whole is critically reduced.
The snow filters in the compression chamber are reinforced with steel and are part of the compression chamber, so they cannot break or burst.
By reducing the pressing force from 40 tons to 500 kg, the risk of breaking the pins, sieve, and pressing chamber is eliminated.
Granulation modules can be individually activated and deactivated during operation, which reduces the risk of downtime for the entire equipment.
Reduction in production downtime
Flexible scalability and performance through the connection of additional granulation modules
Purchase a PU20-III pelletizer with the option of retrofitting 20 kg/hour modules in the future and pay only for the difference in price.
See below for a layout option for a dry ice production workshop that does not require registration as a hazardous production facility or registration of vessels with Rostekhnadzor.
When switching to dry ice cleaning, we also needed dry ice production for a number of reasons. When ordering the entire package (CO2 storage, ice production and cleaning), we also ordered from IRBISTEKH LLC engineering for piping in the workshop, which included 3D modeling and preparation of welded pipes and turnkey units, which accelerated the process of launching ice production. The conversion factor from liquid CO2 to dry ice was 2.6 in low-productivity mode and taking into account the fairly long liquid CO2 route from the storage facility to the granulator.
frequently asked questions
How is dry ice made?
Dry ice is a solid form of carbon dioxide (CO2). This CO2 is processed through a process that compresses the gas and cools it, creating liquid CO2 (LCO2). Once the LCO2 is at the production site, it is injected into a pelletizer or dry ice machine. In the pelletizer, the compressed LCO2 is released to atmospheric pressure, causing it to turn into gas and CO2 snow. It is then pressed into pellets using a press.
Are there any safety precautions when making dry ice?
When working with CO2, it is necessary to ensure sufficient ventilation of the room and use appropriate personal protective equipment when working with liquid or solid form of CO2 (dry ice). It is advisable to install a CO2 concentration sensor with sound and light alarm.
Is dry ice environmentally friendly?
Dry ice is the most sustainable and efficient cooling agent used to maintain the temperature of temperature-sensitive products.
1. Dry ice is made from recycled CO2
Dry ice is a product of the Carbon Capture and Utilization (CCU) process. CO2 is captured from industrial and biogas plants, recycled and converted into dry ice. CO2 would otherwise be emitted, but this waste gets a second life as a cooling and cleaning medium. Dry ice does not increase emissions and does not produce more CO2.
2. Eliminate additional emissions
Refrigerated trucks use 15% more fuel than standard delivery vehicles and emit 18% more nitrogen oxides.
3. Replace Traditional Cooling Methods
Dry ice allows companies to replace resource-intensive and waste-producing gel packs with an environmentally sustainable cooling solution - dry ice.
4. Improve Fuel Efficiency in Transportation
Dry ice sublimates during transportation and continually loses weight, helping logistics companies achieve greater fuel efficiency.
What infrastructure do I need for a dry ice machine?
Requires a 4-12m3 liquid CO2 storage system with integrated refrigeration unit, three-phase power, exhaust ventilation, liquid CO2 supply lines, and sufficient space for a dry ice production unit, dry ice storage containers, and trucks. If you do not already have a liquid CO2 source, Irbistech can come on-site or conduct an analysis remotely to help determine what you need to do, what the investment and return on investment will be. Irbistech can then arrange for 3D design, installation drawings, installation, and commissioning if required.
How much LCO2 do I need to produce a pound of dry ice?
Irbisteh's conversion rate is only 2.4-2.5 to 1 LCO2 to solid dry ice. Most of our competitors remain at 2.7 or higher.
What are the advantages of using a CO2 recovery system for dry ice production?
The CO2 recovery system provides two main benefits: significant savings in CO2 purchase costs due to the reduction of waste and increased dry ice production capacity using the same amount of liquid CO2.
We provide the most technologically advanced systems for dry ice cleaning, surface preparation, parts finishing and dry ice production. To fulfill our mission of providing value and protecting the environment, our equipment uses or produces products that are inert, non-conductive, non-corrosive and do not create hazardous waste.
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