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…
A next-generation absorbent material with a high affinity for short- and long-chain per- and polyfluoroalkyl substances (PFAS) has recently been granted a patent in the U.S. Developed by Puraffinity Ltd. (London, U.K.; www.puraffinity.com), the material is bottom-up-designed, beginning with a…
One of the main limiting factors in the production of “green” hydrogen via electrochemical water splitting is the relatively slow rate of the oxygen evolution reaction (OER) and the use of very expensive noble metals like iridium to catalyze the…
Presented here is the progress and resolution of a troubleshooting case involving a distillation column with a capacity reduction problem Troubleshooting distillation columns during operation is often the key to stable production at industrial facilities. The collection of troubleshooting references…
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…
Advanced materials are considered to be core enablers for technologies aimed at broad global concerns, such as climate change, sustainable manufacturing, critical-materials supply chains, environmental mitigation and remediation and others [1]. The process by which novel advanced materials are designed…
The use of fixed gas detectors can play a crucial role in mitigating the environmental impact of hydrogen leakage and help protect workers in the hydrogen value chain Governments, industry sectors and companies seeking sustainable energy sources to reduce greenhouse…
Toray Industries, Inc. (Tokyo) announced that the Ministry of Economy, Trade and Industry has selected the company’s project to build a gigawatt-class mass production system for electrolyte membranes used in water electrolyzer for the Green Transformation Supply Chain Development Support…
Mitsubishi Power Americas, through its subsidiary MHI Hydrogen Infrastructure (MHI H2I), announces the recent signing of a subrecipient agreement between the Pacific Northwest Hydrogen Association (PNWH2) and MHI H2I’s Boardman Hydrogen Hub project. The PNWH2 Hub, one of the country’s…
Altana AG (Wesel, Germany) has announced that its group company, Eckart, has entered into a joint venture (JV) agreement with India-based sustainable manufacturing firm Runaya. The joint venture is establishing a new facility in Orissa (India), to produce sustainable spherical…