Plant-based extracts, such as antioxidants, phytochemicals and polyphenols, are used in a number of end-markets, including cosmetics, foods and nutritional supplements. A proprietary, low-polarity, pressurized-water extraction method is set to drastically improve the recovery of useful ingredients from botanical sources.…
pH is a critical parameter in many aspects of production: from setting the conditions for a reaction to happen, to the management of the reaction’s process quality, and from sustaining process equipment integrity, to avoiding environmental pollution and health…
Modeling and pilot testing can minimize its impact during natural-gas processing Retrograde condensation (RC) occurs in multi-component natural-gas streams at relatively high pressures (for instance, pressures above 40 barg/580 psig). The presence of condensed liquids in such systems can have…
As the volume of discarded electronic gadgets grows, efforts are underway to recover the precious resources trapped inside It should come as no surprise that the fastest growing part of the world’s domestic waste stream is e-waste — discarded products…
New membranes developed at Tufts University (Medford, Mass.; www.tufts.edu) can effectively separate similar chemicals based on not only size but on electrostatic charge. “Currently, there are no commercial membranes that are designed to separate organic molecules of similar size but…
A practical look at the need for validation, as well as conceptual considerations and a case study This article addresses the need for experimental validation of computer-generated distillation column simulations , and discusses the main concepts involved with experimental validation.…
Australian Mines (Perth; https//:australianmines.com.au) has started operating a demonstration three metals (cobalt-nickel-scandium) processing plant that will process ore from the company’s Sconi and Flemington projects into commercial-grade samples. The company’s flagship Sconi project, located in the mining center of Greenvale…
The concept of tray stability can apply to bubble caps and be used as an alternative method to determine the minimum efficient capacity of these devices. A new stability correlation for bubble-cap trays is proposed and checked against FRI data…
The presence of certain contaminants can wreak havoc on gas dehydration systems and other similar separation processes, but there are design measures that can help to minimize the issues caused by these substances The presence of the aromatic compounds benzene,…
Polymer-electrolyte fuel cells (PEFCs) are promising devices for clean power generation in automotive, stationary and portable applications. Up to now, the proton exchange membranes (PEMs) used in PEFCs have been based on perfluorosulfonic acid (PFSA) ionomers (for example, Nafion). However,…