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Chemical Engineering

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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…

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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,…

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Micro-hydropower systems produce renewable electricity inside pipelines

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…

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…

GEA commissions new spray dryer at Chugai Pharmaceutical in Japan

GEA (Düesseldorf, Germany; www.gea.com) is supplying Chugai Pharmaceutical in Japan with a cutting-edge pharmaceutical spray dryer designed and built to meet the highest containment standards. The PSD-3 spray dryer was successfully commissioned in the first quarter of 2025 and represents…

Beyond the Datasheet: Common Pitfalls in Specifying Pressure-Relief Valves

Even seasoned engineers can fall into the trap of trusting valve datasheets too much. In real chemical‑processing environments, “on paper” performance can fall short — especially when factors like backpressure, fluid phase, fire exposure, or piping layout are misunderstood. This…

CHE Lab

Energy efficiency opportunities in chemical manufacturing

Learn how fast, accurate measurement can positively impact energy efficiencies and lower CO2 output. The chemical industry is an integral part of our daily lives, producing chemicals that many other industries and processes rely on and a large industrial energy…

Kao Corp. completes new tertiary amine facility in Texas

Kao Corp. (Tokyo) has built a new tertiary amine production plant in Pasadena, Texas,  the opening ceremony for which took place on August 22, 2025. The new plant, with an annual production capacity of 20,000 tons, will further enhance stable…

Nippon Sanso to construct new air separation plant in Las Vegas

Nippon Sanso Holdings Corp. (NSHD) announced that its U.S. operating company, Matheson Tri-Gas, Inc. (Irving, Tex.), will build, own, and operate a new air separation plant in Las Vegas, Nevada, which is scheduled for completion in 2027. This new plant…