I D
× COMMENTARYCOVER STORYIN THE NEWSCHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUS
Focus on Valves
    A new motorized control valve for the semiconductor…
NEW PRODUCTS + Show More

Comment PDF Separation Processes

Facts at your Fingertips: Air Separation Processes

By Scott Jenkins |

The components of air (Table 1), especially nitrogen (N2) and oxygen (O2), are critical for many modern industrial processes. Primary metals production, chemical manufacturing, gasification processes, clay, glass and concrete production, welding and other processes depend on O2 from air, while the chemical, petroleum-refining and electronics industries utilize N2 for its inert properties. In addition, liquid N2 is used for cryogenic grinding, freeze-drying, cryogenic storage of biological materials, food freezing and other applications. Argon (Ar) is used as an inert material in welding, steelmaking, heat-treating and electronics manufacturing. This one-page reference discusses the main methods by which these common industrial gases can be derived from air.   Air separation approaches Separation of air into its constituent parts for industrial use can be divided into two main categories: cryogenic air separation and non-cryogenic processes. Cryogenic air separation processes produce N2, O2 and Ar as either gases or liquids by employing low-temperature distillation to separate the fluids. Cryogenic separation processes are most commonly used when high-purity products and high production rates are required. Non-cryogenic processes…
Related Content
  • Mariam Rahal

    THE METHOD OF COLLECTING NITROGEN NOT CLEAR FOR ME CAN YOU DISCUS MORE BECAUSE i INTERESTED IN THIS PROBLEM


ABB

The Big 6 flowmeter technologies: Where to use them and why

WHITE PAPER — The Big 6 flowmeter technologies: Where to use them and why Flow is one of the most frequently measured process variables throughout industry, and one where the choice in measurement technology is critical. In fact, no single flowmeter…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Fluidized bed drying and cooling for temperature-sensitive polymers and plastics
CoriolisMaster: The SmartSensor solution
The Big 6 flowmeter technologies: Where to use them and why
Hydrofluoric acid alkylation (HFU) unit optimization
Looking for ways to step up your petrochemical and polymer production?

View More