Computer-generated simulations of distillation processes are often validated experimentally. This reference discusses three concepts that influence comparisons between experimental results and simulation predictions: vapor-liquid equilibrium (VLE) of the components; relative liquid-to-vapor flowrates (L/V ratios in the column); and vapor-liquid contactor…
Research and development in the brewing industry is peaking, driven by efforts to improve quality, efficiency and sustainability Within the chemical process industries (CPI), the brewing industry is among the sectors with the deepest historical roots and the most entrenched…
The first gold using a process without cyanide and without mercury has been produced using technology from CSIRO Minerals Technology (www.csiro.au) at a demonstration plant in the Western Australian goldfields town of Menzies. Cyanide is used in more than 90%…
Presented here are practical considerations concerning the equipment and methods used for experimental verifications of simulations The use of process simulation tools for modeling distillation columns is invaluable for designing plant-scale columns. However, it can be difficult to know if…
As environmental and transportation regulations become more stringent around the world, treating spent acids is becoming less of an option and more of a necessity Acids play many different roles in a large number of sectors of the chemical process…
Designing a new solid-liquid filtration process or optimizing an existing one requires consideration of a number of factors aside from the type of filter that will be used. This one-page reference reviews two groups of considerations: one related to equipment,…
Equilibrium data and related information gathered from a liquid-liquid extraction laboratory “shake test” can provide information for process feasibility and column-type selection in the scaleup of liquid-liquid extraction processes Most chemical engineers have had the experience of dealing with problematic…
Later this year (Q4 2018), APK AG (Merseburg, Germany; www.apk-ag.de) will start up the first commercial plant to recycle multilayer packaging using the company’s solvent-based Newcycling process. The plant will process 8,000 metric tons per year (m.t./yr) of post-industrial multilayer…
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…