Chemical Engineering
Tower Doctor: Should a Doctor Diagnose by a Hunch?
Henry Kister shares lessons learned from troubleshooting distillation towers The C2 splitter tower is the final step in ethylene plant distillation. It separates a high-purity ethylene top product (typically a few hundred ppm ethane impurity) from the ethane recycle bottoms.…
Patent granted on system for feeding biomass to high-pressure reactors
One of the challenges for biofuels manufacturing is reliably feeding low-density feedstocks into high-pressure reactors, because it is difficult to feed agricultural and forest residue, as well as municipal solid waste, into pressurized systems without bridging, compaction and flow instability.…
New insights into graphene oxide’s strengthening effects in concrete could accelerate commercial development
The nanomaterial graphene oxide (GO) has been investigated as a way to improve concrete strength, but reported results of GO’s effects have been inconsistent and detailed understanding of the mechanisms of its strength-enhancing effects has been elusive. New studies by…
Circular-loop recycling for disposable baby diapers demonstrated in Europe
Disposable baby diapers are a challenging waste stream, because the absorbent polymers, non-woven fibers and organic material prevent them from mechanical-recycling processes. However, a three-way partnership has demonstrated a circular system for chemical recycling of disposable diapers. The project, involving…
Pilot project debuts integrated hydrogen storage and transport using aqueous-salt technology
Hydrogen production is expanding across the globe, but hydrogen gas remains difficult and costly to store and transport, restricting its broader use. A pilot project in Germany is demonstrating for the first time a salt-based process for long-term hydrogen storage.…
World-first sewage-treatment trial proves comprehensive dual-phase PFAS removal
An ongoing large-scale demonstration project in Australia is the world’s first to apply a foam-fractionation technology to remove per- and polyfluoroalkyl substances (PFAS) in a sewage-treatment plant. The Surface-Active Foam Fractionation (SAFF®) technology developed by EPOC Enviro (Emu Plains, NSW,…
Electrified process converts CO2 and biochar into industrial products
The production of salable co-products can substantially improve the economics for CO2 conversion processes. A new electrified thermochemical process developed by startup Reduciner Oy (Espoo, Finland; www.reduciner.com) combines captured CO2 streams with biochar to produce carbon monoxide, along with activated…
Atomically thin photocatalysts unlock new pollution-degradation capabilities
Researchers at the University of Birmingham (www.birmingham.ac.uk) have demonstrated a new production method for ultra-thin catalysts, unlocking new capabilities for the catalytic breakdown of persistent water pollutants. “The production method takes layered materials as the precursor, disperses them in a…
INEOS Enterprises completes sale of INEOS Calabrian to Ecovyst
INEOS Enterprises announced the completion of the sale of INEOS Calabrian, its ultra-pure sulfur dioxide and derivatives business, to Ecovyst Inc. (Malvern, Pa.). The transaction, valued at $190 million, marks the successful conclusion of a strategic divestment first announced in…
Endress+Hauser opens two new facilities in the U.S.
The Endress+Hauser Group (Reinach, Switzerland) opened two new facilities in the United States in June 2026. With these locations in Greenwood, Indiana, and Edgmont, Pennsylvania, the company is further expanding its presence in the country and strengthening its collaboration with…