Despite the fact that carbon dioxide is abundant in our atmosphere, the supply chain for purchasing industrial-grade CO2 is surprisingly fragile and complex. Unlike oxygen or nitrogen, which can be cost-effectively filtered and separated directly from ambient air using air separation units, capturing CO2 from the atmosphere on a commercial scale is still energetically and financially expensive. Consequently, the vast majority of carbon dioxide bought and sold today is captured as a byproduct of other industrial processes.
Perhaps the most exciting frontier in purchasing CO2 is the synthesis of sustainable aviation fuels (e-fuels) and plastics. By combining captured carbon dioxide with green hydrogen, chemical companies can create synthetic hydrocarbons. When airlines or freight companies buy these synthetic fuels, they are participating in a closed-loop system where the carbon emitted during flight is the same carbon that was previously captured from the atmosphere or industrial chimneys. buy co2
To understand why entities buy CO2, one must first examine the diverse and critical applications of the gas across various sectors. The largest commercial consumer of carbon dioxide is the food and beverage industry. When consumers drink a carbonated beverage, they are consuming CO2 that was purchased by the manufacturer to provide that signature fizz. Beyond carbonation, liquid and solid carbon dioxide (dry ice) are heavily utilized for chilling and freezing food products during processing and transit. Because CO2 can achieve extremely low temperatures and sublimates directly from a solid to a gas without leaving liquid residue, it is the gold standard for preserving the cold chain for meat, dairy, and frozen meals. Furthermore, modified atmosphere packaging (MAP) uses CO2 to displace oxygen inside food packaging, significantly delaying spoilage and extending shelf life without the need for chemical preservatives. Despite the fact that carbon dioxide is abundant
Today, innovative companies are buying CO2 not just to use and release it, but to permanently sequester it or transform it into valuable products. In the construction industry, companies are purchasing CO2 to inject into concrete during the mixing process. The CO2 chemically reacts with the cement, mineralizing into a solid that permanently traps the carbon while actually increasing the compressive strength of the concrete. Perhaps the most exciting frontier in purchasing CO2
Beyond fossil fuels, CO2 is purchased for chemical manufacturing. It serves as a raw material in the synthesis of urea (used in fertilizers), methanol, and various polyurethanes. In the field of water treatment, buying CO2 is often a safer and more precise method for neutralizing the pH of alkaline water than using harsh mineral acids like sulfuric or hydrochloric acid. In metal fabrication, carbon dioxide is purchased as a shielding gas in semi-automatic welding processes to protect the weld puddle from atmospheric contamination.
The medical field also relies on high-purity CO2. It is purchased by hospitals for insufflation—the act of bloating the body cavity with gas during laparoscopic or minimally invasive surgeries to give doctors room to operate. It is also mixed with oxygen to stimulate deep breathing in patients or used in cryotherapy to destroy abnormal tissue.