Researchers at the U.S. Department of Energy’s (DOE; Washington, D.C.; www.energy.gov) Oak Ridge National Laboratory (ORNL; Oak Ridge, Tenn.; www.ornl.gov) have developed a hydrothermal-synthesis method for high-voltage lithium-ion battery cathodes that avoids several key issues with traditional battery processing. Key…
A new advanced recycling process simplifies the task of breaking down polymer chains and stabilizing the resulting fragments. The Hydrochemolytic technology (HCT), developed by Aduro Clean Technologies, Inc. (Sarnia, Ont., Canada; www.adurocleantech.com), involves processing waste plastic with water, an inexpensive…
Production of ammonia by the Haber-Bosch process not only requires a lot of energy for the high-temperature (300–500°C) synthesis of NH3 itself, but the recovery of ammonia takes place by condensation at –20°C. As a result, large changes in both…
The S-4 Series of screw compressors now includes options for the 45- to 75-kW performance range (photo). All models are characterized by quiet, reliable operation and have high efficiency. The compressors generate high free-air delivery at low specific-power consumption. The…
Chemical engineers from the Swiss Federal Institute of Technology Lausanne (EPFL; www.epfl.ch), in collaboration with scientists from Toyota Motor Europe (Zaventem, Belgium; www.toyota-europe.com), have invented a photoelectrochemical (PEC) “artificial leaf” that splits water vapor into H2. The technology features a…
Process equipment is usually connected by pipelines through which, if an explosion occurs, fire and pressure can spread very rapidly. Propagating explosions pose increased risks of secondary explosions. The intensity of the explosion in connected vessels is increased by pressure…
Safety is often underestimated when planning, operating and maintaining process-measuring equipment. Sensors with SIL certification, alone, do not make the process safe. It is important to avoid systematic errors during planning, installation and operation The correct installation of a temperature…
A routes-by-exception reliability strategy helps improve safety and efficiency, while preserving competitive advantage in a changing marketplace In recent years, maintenance and reliability experts have often talked about the massive wave of retirements leaving chemical plants, creating a shortage of…
Thoughtful design can help reduce safety risks at process plant sites by proactively eliminating possible hazards and modifying personnel behaviors Safety is an important value in any organization, but is particularly important in the chemical process industries (CPI) when the…
Stainless steels are common materials for process equipment and components in the chemical process industries in large part because of their corrosion resistance. This one-page reference reviews the properties of stainless steels with regard to corrosion resistance. Passive layer Stainless…