I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringModular NGL recovery
Honeywell UOP (Des Plaines, Ill.; www.uop.com) has adapted its recycle-split-vapor…
Chemical EngineeringChementator Briefs
Self-healing adhesives Researchers at Oak Ridge National Laboratory (Oak Ridge,…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUS
Focus on Sensors
Oxygen measurement with Ex approvals & SIL2 certification The new…
NEW PRODUCTS + Show More

Comment Business & Economics

Messer starts production of Kr and Xe in China  

By Gerald Ondrey |

Messer (Bad Soden/Frankfurt, Germany; www.messergroup.com) the largest privately run industrial gases specialist, has started up a plant for the production of the noble gases krypton and xenon. A sophisticated process extracts the rare gases from the air, which are mainly used as lamp fill gas. Messer began producing the noble gases krypton and xenon at a new production plant last November. These gases are two of the rarest elements found on the earth. They comprise only about 1.2 ppm of the atmosphere. The plant is operated by Messer’s Chinese subsidiary, Hunan Xianggang Messer. The noble gases concentrate in the liquid oxygen during the process of air separation, which is used to produce the components of air: oxygen and nitrogen. As krypton and xenon occur only in very small quantities in the air, however, a great deal of liquid oxygen is needed in order to extract reasonably large quantities. The new plant can produce 9.4 kg of the noble gases per day from 24,000 kg of liquid oxygen. The resulting gas mixture comprises 90% Kr and 10% Xe. Extracting that gas mixture from the component of air requires precisely matched process steps such as precleaning, pressure build-up, demethanization and distillation. The noble gases Kr…
Related Content
Calling all experts
Do your colleagues often come to you with questions about a particular topic? Do you find yourself assigned to certain…
Business News: March 2021
Plant Watch Austria’s largest green-hydrogen plant being constructed at OMV refinery February 16, 2021 — OMV AG (Vienna, Austria; www.omv.com)…

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
Steel Belt Units for Medical Membranes
Upstream Oil & Gas: Automation intelligence from wellhead to distribution
Video - CoriolisMaster
Video - Do you really need a thermowell?
The influence of IIoT in the dewatering process step of pigment production

View More