Praxair, Inc. (Danbury, Conn.; www.praxair.com) has started up its new carbon dioxide (CO2) purification facility at the Honeywell Resins & Chemicals site in Hopewell, Va. Under a longterm agreement, Praxair will purchase CO2 from Honeywell Resins & Chemicals, one of the world’s largest producers of nylon resin and caprolactam, a critical feedstock used for nylon production. The agreement expands Praxair’s business relationship with Honeywell. Praxair’s new facility purifies and liquefies approximately 400 metric tons per day (m.t./d) of CO2, a byproduct of the production process at Honeywell's caprolactam facility. The CO2 supply will help Praxair serve customers in a variety of industries, including food and beverage, where it is used to freeze, chill, preserve and package food and carbonate beverages. It is also used in the healthcare, oil recovery, metal fabrication, chemicals and wastewater segments.