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Chemical Engineering

INEOS Enterprises to sell sulfur dioxide business to Ecovyst

INEOS Enterprises has agreed to sell its shares in INEOS Calabrian, its ultra-pure sulfur dioxide and derivatives business, to Ecovyst Inc. (Malvern, Pa.).  INEOS Calabrian operates manufacturing sites in Port Neches, Texas, USA and Timmins, Ontario, Canada. Completion is expected…

GEA launches meVap® family to electrify industrial heat and accelerate decarbonization

In industrial plants, the biggest climate gains are often hidden in plain sight. Behind every evaporation step, every distillation column and every crystallization line lies a constant demand for heat — and with it, a major opportunity to cut emissions.…

Editor’s page: From ‘automated’ to ‘autonomous’

The continued and expanding use of digitalization technologies in the process industries have pushed facility operations from “automated” — featuring distributed control systems, programmable logic controllers, safety instrumented systems and others — toward “autonomous” operations, where technologies like machine-learning, open-software-defined…

Rotating bioreactor scheme accelerates production of high-value products

A team of researchers at Iowa State University (ISU; Ames; www.iastate.edu) have developed a new bioreactor concept that streamlines production of value-added bioproducts at smaller scales by integrating three process steps (fermentation, product extraction and separation) into a single, compact…

Waterless technology uses supercritical CO2 to recycle textile waste

Textile waste is one of the fastest-growing waste streams globally, and there are limited options available to efficiently recycle end-of-life textiles into useful materials. A new recycling approach developed by Renasens (Stockholm, Sweden; www.renasens.com) utilizes supercritical CO2 to recover intact…

Modular, low-cost ammonia-production system is designed for intermittent energy

Ammonia is a critical input for agricultural fertilizers, but NH3 production is plagued by volatile prices, difficult global logistics and high CO2 emissions. A new NH3-production system from the startup TalusAg (Austin, Texas; www.talusag.com) addresses these challenges with a modular…

Molten-salt nuclear reactors take the next step toward industrial deployment

Over decades of experimentation, molten-salt nuclear reactors have been shown to deliver high-temperature heat and extremely efficient electricity at reduced pressures. However, these reactors have yet to make the leap into widespread industrial adoption. Terrestrial Energy Inc. (Charlotte, N.C.; www.terrestrialenergy.com)…

Process for cellulose-derived pigments scales up to hundreds of tons/yr

A process for making pigments from cellulose for use in cosmetics, food and coatings applications has scaled up from a 1-ton/yr pilot unit to a process capable of generating multiple-hundreds of tons per year in a toll-manufacturing setting. The cellulose-derived…

PVC polymer chlorination with LEDs enhances resin stability

Lubrizol (Cleveland, Ohio; www.lubrizol.com) recently began producing chlorinated polyvinyl chloride (CPVC) resin in commercial reactors equipped with light-emitting diodes (LEDs) as the light source, instead of the conventional mercury lamps. The company’s LED reactor technology enhances the thermal stability of…

Low-temperature plasma process supports direct recycling of battery cathodes

Direct battery-recycling methods, such as re-lithiation — where depleted lithium is replenished directly onto cathodes via a solid-state reaction — hold many benefits over indirect methods, such as those relying on hydrometallurgy or pyrometallurgy, where cathodic structures are destroyed in…