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Ask the Experts Metals

Our gas quenching process uses a lot of gas and then vents it. Can we purify and reuse that gas?

Annemarie Weist
Global Lead, Gas Recovery and Recycle

Depending on impurities, gas volumes and ease of capture, many gases can be and are recycled. You can purify gases like helium with simple membrane or adsorption systems, or argon with an adsorption and getter combination. Adsorption systems are effective because you can select the sieves to optimize impurity removal. If you use layers of sieves, a variety of impurities can be removed to <10 ppm. Air Products’ systems can remove nitrogen, oxygen, argon, carbon monoxide, carbon dioxide, moisture, methane and hydrogen from process gases. In some processes, impurities are so low that you may not need purification—a simple capture and pressurize system may be adequate. We can help recycle your gas. Call us at 800-654-4567.

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