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Carbon dioxide removal combined with desalination
Most existing carbon-dioxide removal (CDR) approaches have focused on air, but the volumetric concentration of dissolved inorganic CO2 in surface water is much higher (150X) than its concentration in the atmosphere. Removing CO2 from water could prove to be a…
Air Classification of Powdered Materials
Air classification of powdered materials offers a way to control particle size distribution in solids-handling operations. Information on key performance metrics and operating practices of size classification equipment is presented here The handling and processing of solid particulate materials are…
Process Analytical Technology and the Role of Raman Spectroscopy
Process analytical technology (PAT) approaches allow continuous monitoring and real-time control of processes. Among the key monitoring technologies is Raman spectroscopy, which offers inline measurement that can reduce personnel time and sampling complexity The chemical industry faces new challenges with…
A platform technology for low-carbon cement makes progress
Two recent developments at Queens Carbon Inc. (Pine Brook, N.J.; www.queenscarbon.com), a spinoff company from Rutgers University (New Brunswick, N.J.; www.rutgers.edu), illustrate the potential for reducing the high carbon-dioxide emissions that result from cement and concrete production. Both are results…
Focus On: Pumps
A dispenser for abrasive and viscous fluids NEMO dispensers (photo) are designed for precise dosing and metering of abrasive and viscous fluids. With the ability to handle a wide range of viscosities, shear-sensitive materials and entrained solids, NEMO dispensers deliver…
Switchable solvent supports freshwater extraction from hypersaline brine
Extremely high-salinity water streams present difficulties for many types of processing equipment, such as membranes and filters, and most commercial treatment methods involve thermal evaporators or crystallization, which are energy-intensive and require special anti-corrosion materials. A new membrane-less, non-evaporative process…
Makeup Water Treatment: Sodium Softening and Reverse Osmosis
Conscientious operation and maintenance is critical for steam-generator system reliability. Here, important details for softening and reverse osmosis systems are explained and compared As steam generation technology and higher pressure and temperature boilers evolved in the 20th century, improved makeup-water-treatment…
Novel reactor addresses limitations of pyrolysis for plastics recycling
Pyrolysis has received much attention as a technology capable of breaking down waste plastics in recycling processes, but existing pyrolysis approaches often give rise to products with broad molar mass distributions and poor yields. Catalysts can improve yield and selectivity,…
Show Preview: Powtech Technopharm
The Powtech Technopharm exhibition (Sept. 23–25; Nuremberg, Germany) highlights all types of technologies for processing powders, solids and liquids. This year’s event boasts an exhibit hall and technical forums, all supporting interdisciplinary dialogues and hands-on technology demonstrations. The following are…
Editor’s page: Welcome to Chemical Engineering
This month’s column gives a brief overview of the Chemical Engineering brand. While long-term readers need no introduction to the magazine, newer readers might be interested in the history of the magazine and what we cover. Perhaps even long-term readers…