Sinamics G220 (photo) is a new multi-purpose, adjustable-speed drive that features built-in technology to reduce harmonics by up to 97% — without the need for an a.c. line reactor or d.c. choke. Sinamics G220 drives have an integrated web server…
As processes have become more complex and dynamic, alarm management software has evolved, and now provides deep intelligence to keep plant personnel safer, more aware and more efficient There can be little doubt that effective alarms are one of the…
This company’s explosion-proof sensor (photo) combines near-infrared technology with robust safety features, providing accuracy and reliability in explosive atmospheres. This sensor offers protection through a certified explosion-proof enclosure with conduits, unions, elbows and nipples for secure external connections. Even in…
Developing sustainable pathways to ethylene — among the world’s most widely used chemicals — is a key element in decarbonizing the process industries. A new electrolysis technology developed by CERT Systems (Toronto, Ont., Canada; www.co2cert.com) can produce ethylene from CO2…
Gas compressibility can lead to choked flow in piping systems. Presented here is an overview of choked-flow geometries in pipes, and examples of how choked flow arises in different pipe layouts The more things change, the more they stay the…
Designing a proton-exchange membrane that will balance the efficiency, durability and safety requirements for hydrogen production requires careful consideration of materials and chemistry Among the ongoing efforts to curb climate change, researchers are actively pursuing the further development of water…
Water scarcity is a growing global concern that is driving increasing efforts to conserve, re-use and treat water. Desalination of seawater is a known technology to combat water shortages, but it is an energy-intensive process. Solar-powered evaporation can be a…
Powerful permanent magnets Permanent magnets — materials that create their own persistent magnetic field — are frequently used in most types of electronics, turbines, engines and motors. Currently, nearly all powerful permanent magnets require rare-earth elements (REEs), such as neodymium…
Digitalization can help ethylene producers to flexibly respond to economic uncertainties and assess available options based on their existing infrastructure and priorities Post-pandemic, olefin and polyolefin producers have been faced with regional and global economic headwinds. Inflation, energy security, rising…
Weeping and flooding phenomena set the vapor velocity in industrial distillation columns. Presented here are procedures for calculating flooding and weeping velocities in a four-pass sieve-tray column In industrial distillation, the term “weeping” is primarily used when the liquid in…