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Chemical Engineering

LyondellBasell installs new cast film line at Cincinnati Technology Center

LyondellBasell Industries B.V. (LYB; Rotterdam, the Netherlands) announced the installation of a new Colines cast film line at its Cincinnati Technology Center. This installation represents a leap forward in the company's innovation and collaboration capabilities, allowing engineers to develop and…

Explosion Protection in Hydrogen Applications: Principles, Practice and Technology

The use of hydrogen brings unique safety challenges, especially explo- sion risks. As its use grows across industries, effective explosion pro- tection becomes essential. Understanding the principles, practices, and technologies behind explosion protection ensures reliable operations and safeguards people, equipment,…

Natural gas contaminant measurement made easy

Advanced technology for continuous measurements of multiple natural gas contaminants for custody transfer, tariffs compliance, and process monitoring Natural gas contaminants such as H2S, H2O and CO2 constitute a significant hazard to an operator’s business as they represent both safety and…

LG Chem and Zeiss announce alliance on photopolymer film for holographic displays

Zeiss (Jena, Germany; www.zeiss.com), known worldwide for expertise in optics and photonics, and LG Chem (Seoul, South Korea; www.lgchem.com), a leader in advanced materials, announced their strategic alliance that stands for robust, sustainable, and innovative photopolymer film supply on industrial…

November 2025 editorial roundup

The following is a video of senior editors Mary Page Bailey and Scott Jenkins discussing some of the highlights from the November 2025 issue of Chemical Engineering.  To watch, click the video link below: YouTube Link https://youtu.be/11eYPn5G-MA  

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First continuous and scalable ambient pathway to electrically conductive plastics

Electrically conductive plastics, also known as conjugated polymers, bring many cutting-edge benefits for flexible sensors, medical devices, energy-storage systems and more. They are currently produced at relatively small volumes and come with extremely high prices. A novel technology discovered at…

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Improved version of PFAS capture-and-destruction technology commissioned in Germany

Following regulations for drinking water, increasingly stringent limits for per- and polyfluoroalkyl substances (PFAS) in industrial wastewater are anticipated, necessitating improved technology to handle higher rates of removal, as well as to destroy the compounds in concentrated samples. Gradiant (Boston,…

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CO2-utilization technology makes renewable acrylonitrile

Nearly all of the currently produced building-block chemical acrylonitrile (AN) results from the ammoxidation of propylene, a process that requires precise heat control and generates several toxic side products, such as hydrogen cyanide. The startup company Mars Materials (Houston, Tex.;…

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Novel PVC-recycling process piloted in Ohio

Polyvinyl chloride (PVC) is among the world’s most widely used polymers. Recycling PVC via mechanical and high-temperature chemical processes is challenging due to its chlorine content.The startup company Plastic Back (Tel Aviv, Israel; www.plastic-back.com) aims to raise the rates of…

Agitator Impeller Hydraulic Force in Mixing Vessels

Understanding the forces acting on agitator impeller blades during turbulent flow in a mixing vessel is essential for successful and efficient operation. Presented here is information on the hydraulic force, its source, and how to calculate it Mechanically agitated vessels…