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Measurement and modeling point the way toward optimization of mechanochemical recycling
The widely used plastic polyethylene terephthalate (PET) can be depolymerized by reacting it with sodium hydroxide (NaOH) under strong mechanical impact from metal spheres in a ball mill. This type of mechanochemical route to recycling could alleviate some of the…
Powerful palladium “plugs” make this hydrogen-separating membrane more durable
Palladium is widely used in membrane applications because of its extreme selectivity for hydrogen. However, conventional palladium membranes can be damaged at the high temperatures required for many processes that generate hydrogen for various subsequent uses, including the manufacture of…
The Effects of Particle Size on Bulk-Solids Flow Properties
Understanding how particle size affects flow properties helps ensure reliable flow of materials between process steps Many industries utilize dry solid materials and powders (collectively referred to as bulk solids in this article) for producing and manufacturing products. It is…
CPI Business News: December 2025
Plant Watch Mitsubishi Gas Chemical builds new electronic materials plant in Thailand November 11, 2025 — Mitsubishi Gas Chemical Co. (MGC; Tokyo; www.mgc.co.jp) completed construction of a new plant expansion at MGC Electrotechno (Thailand) Co. (ETT), a subsidiary dedicated to…
Modern SIS: Balancing Safety with Process Availability
Advanced safety-instrumented system features minimize complexity, downtime and costs Chemical process plants must be vigilant when it comes to preventing accidents that have the potential to harm people, assets and the environment. While safety instrumented systems (SIS) reduce risks, they…
Facts At Your Fingertips: Determining RTD in Non-ideal CSTR Reactors
In continuous processes, the properties and quality of the products depend on the residence time of different feed substances, and feed materials may not spend the same amount of time in a reactor. When designing equipment for continuous processes, it…
Enabling Clean Ammonia: Practical Lessons from a Full Plant Conversion
Low-carbon ammonia is an attractive driver for decarbonization of many product chains. Here are some practical insights from a legacy plant that was updated for cleaner ammonia production Ammonia production is under growing scrutiny as decarbonization becomes a global imperative.…
Focus on Sensors
All-in-one monitor, data-logger and converter for flow sensors The IFQ Monitor 2 (photo) is a user-friendly monitor, advanced data-logger and converter for this company’s flow sensors. The IFQ Monitor 2 ensures accurate liquid-flow measurement in open-water and full-pipe applications, providing…
Nickel-based catalyst could allow recycling of mixed polyolefin waste
Among the major challenges facing efforts to chemically recycle common waste plastics is that many methods require a pure stream of a single type of polymer to be effective. Now, researchers at Northwestern University (NU; Evanston, Ill.; www.northwestern.edu), led by…
CE Editorial Roundup Video: December 2025
Join the Chemical Engineering editorial team for a discussion of the December issue and what's to come from Chemical Engineering. https://youtu.be/El3wzgl9hds