Storing energy to smooth the intermittency of wind and solar power can be accomplished in a number of ways, including mechanical (pumped hydro, flywheels, compressed air and others), thermochemical (phase-change materials and molten salts, for example), chemical (conversion of electricity…
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…
A first-of-its-kind energy-recovery system harnesses the energy of water flow and pressure in pipelines to produce renewable energy. The patented HydroXS unit, developed by InPipe Energy, Inc. (Portland, Ore.; www.inpipeenergy.com) in collaboration with Grundfos Corp. (Brookshire, Tex.; www.grundfos.com/us), is a…
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,…
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 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…
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…
Breaking the stable carbon-fluorine bonds within per- and polyfluoroalkyl substances (PFAS) is one of the most significant challenges in mitigating persistent PFAS pollution. The Hydrothermal Alkaline Technology (HALT; diagram), invented at the Colorado School of Mines (Golden, Colo.; www.mines.edu) and…
Plant Watch Chevron Phillips Chemical completes LV PAO expansion in Belgium August 12, 2025 — Chevron Phillips Chemical L.P. (CPChem; The Woodlands, Tex.; www.cpchem.com) has completed the expansion of its low-viscosity polyalphaolefins (LV PAO) production unit in Beringen, Belgium, significantly…
Sanitary valves are essential for applications that demand product purity, process integrity and regulatory compliance. This article discusses valve types, working principles and components, and provides considerations for selection and specification Sanitary valves are essential components for applications in the…