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 Processing & Handling

Gas Sparging

By Chemical Engineering |

Sparging refers to the process of injecting a gas through a diffuser into a liquid phase. It is used in both physical and chemical process applications. In physical process applications, the gas is used to either dissolve gas into liquid (such as aeration and carbonation) or to remove contaminants from the liquid phase (such as oxygen stripping, volatile organic compound stripping and water stripping). In chemical process applications, sparging is used to dissolve reactant gases into a liquid phase for further reaction (such as in hydrogenation, oxidation, fermentation and ozonation reactions). The following information discusses some of the considerations required for setting up a sparging operation and selecting sparging equipment. Spargers (diffusers) come in various sizes, configurations and materials of construction. They are chosen based on the design and operating conditions of the process. Metal spargers are used in high-temperature, corrosive or oxidizing conditions, whereas ceramic spargers are sufficient for mild conditions. The type and configuration of the sparger used depend on factors such as whether a process is continuous or batch, gas flowrate, tank size, mechanical agitation, operating pressure and temperature.  Mass-transfer…
Related Content
Reliable and Cost-Effective Solids Feeding
A holistic approach to bulk-solids-feeding installations can improve the effectiveness and efficiency of operations involving solids handling Many chemical processes…
CPI Bookshelf: September 2020
The following is a list of recently published books with relevance to the chemical process industries (CPI): Trevor Kletz Compendium:…

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
Metering gas in biogas plants
Wet process analyzer for FPD and solar cell manufacturing for semi-conductors
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

View More