Carbon dioxide gas (CO2) is one of the most important industrial gases; a colorless and odorless gas that remains stable at room temperature. CO2 is naturally produced by animal respiration and metabolic processes, and is used by plants during the photosynthesis process in the environmental cycle. At industry, CO2 is supplied in both compressed gas and liquid/solid ice forms and has different applications from firefighting to rapid cooling, carbonation, pH control, and chemical production due to its physical properties.
Applications of Industrial Carbon Dioxide Gas
Chemicals and Polymer Production
It is used as the feed/ reactant for the production of urea (extensive application in chemical, agricultural, and automotive industries), sodium bicarbonate, carbonates, intermediates in polycarbonate production, polyurethanes, and some plastics.
Cooling (quenching), shock freezing , and dry ice
Liquid CO2 is used for “shock freezing” and localized cooling; it is transformed into dry ice (dry ice with about -78.5) for shock freezing, refrigerated transportation, and even dry ice blasting. This gas also helps to improve the resistance/quality of mold in molding and casting operations.
Industrial Water and pH Control
CO2 injection is a reliable approach for pH reduction (instead of some acids) in industrial water cycles and treatment plants, and helps control corrosion/sedimentation.
Safety and Firefighting
In fire extinguishers and fixed systems, CO2 displaces oxygen and suffocates the flame; it is a suitable option for electric-based fires and some flammable liquids (considering the HSE requirements).
Electronic Processes and Semiconductors
CO2 is used for surface cleaning, electronic boards assembly, and some stages of semiconductor manufacturing; it is clean, dry, and residue-free.
Oil, Gas, and Petrochemicals (Enhanced Oil Recovery)
High-pressure CO2 injection into underground reservoirs reduces oil viscosity and supports EOR.
Welding and Comparison with Inert Gases
CO2 is applied as a protective atmosphere (pure or as a mixture of Ar/CO2) in MAG/MIG processes for carbon steels. An industrial Ar-based mixture is preferred for delicate alloys and very clean surfaces. Nitrogen gas is ideal for inerting the areas and pipeline drying.
Advantages and Constraints of Industrial CO₂:
Advantages:
• Inflammable and available; offered in gas/ liquid/ or dry ice form
• Multipurpose application: carbonation, pH control, shock freezing, and fire distinguishing
• Great effect in packaging and sensitive processes without oily pollution
Constrains and Risks:
• Risk of suffocation in confined places (CO2 is heavier than air and displaces oxygen)
• Extreme refrigeration of liquid CO2/ dry ice and risk of frostbite in direct contact
• Need for the management of pressure, vaporization, and sufficient air conditioning at the consumption point
Accessories and Technical Considerations of Helium
• A CO2-compatible regulator and a precise pressure gauge are needed, as well as a cylinder heater for applications with high flow rates
• In welding: choosing the suitable CO2 mixing ratio for protective mixtures based on the material and the surface quality
Carbon Dioxide Gas Cylinder and Tank
CO2 is supplied in cylinders or cryogenic tanks; the common cylinder capacities are:
• 5 Liter Carbon Dioxide cylinder
• 10 Liter Carbon Dioxide cylinder
• 20 Liter Carbon Dioxide cylinder
• 40 Liter Carbon Dioxide cylinder
• 50 Liter Carbon Dioxide cylinder
Safety, Storage, and Transportation
•
Air conditioning and monitoring: using a CO2 monitoring system in confined places and avoiding working in unventilated low-laying areas
•
Personal protection: cryogenic Gloves/ shield/ apron when you are in contact with liquid/ dry ice; smooth transportation to prevent vapor eruption
•
Storage: vertical cylinders, strained, away from heat or impact; installation of a protective cap and periodic hydrostatic tests are recommended
Price and Terms of Purchase for Industrial Carbon Dioxide Gas
Effective parameters on price: Supply phases (gas/ liquid/ dry ice), cylinder capacity/ volume, required grade/ purity.
Purchase of Industrial Carbon Dioxide Gas
Akhavan Kalantari Company supplies CO2 gas with high quality and purity based on your requirements, from urea, polymer, and fire extinguishing. Contact us for free advice and an updated price.
| Carbon Dioxide (gas) |
|
CO2 |
| Purity |
Grade |
Type |
| 99.9 |
3 |
Industrial |
| 99.999 |
5 |
Laboratory |