Mobile Navigation

Chemical Engineering

Chementator Briefs

Self-healing adhesives Researchers at Oak Ridge National Laboratory (Oak Ridge, Tenn.; www.ornl.gov) developed a series of autonomous self-healable and highly adhesive elastomers that are fabricated via a simple, efficient and scalable process. The self-healing elastomers demonstrated unprecedented adhesion strength and…

Direct degradation of microplastics in wastewater

Microplastic pollutants in wastewater are notoriously difficult to treat, and can stem from many common sources, ranging from personal-care products to textiles. A new treatment technology developed by a team of researchers from Institut National de la Recherche Scientifique (INRS;…

A two-step process reduces nitrous oxide emissions

Last month, Lanxess AG (Cologne, Germany; www.lanxess.com) inaugurated a new plant in Lillo/Antwerp, Belgium to reduce the nitrous oxide emissions that are generated during the production of caprolactam. The €10-million investment breaks down approximately 500 metric tons (m.t.) of N2O…

Sustainable enzyme-based production of macrocyclic lactones for fragrances

Planned commercial-scale production of macrocyclic gamma-lactone molecules using an enzymatic process will supply the flavors and fragrances market with sustainable alternatives to existing processes based on synthesizing petroleum-derived molecules or isolating molecules from natural sources. The synthetic biology company Conagen…

Anaerobic fermentation process using human gut microfauna

Industrial-scale production of protein-rich food additives based on anaerobic fermentation is slated to begin later this year at a former bioethanol site in Minnesota. The facility will use a fermentation process developed by White Dog Labs (WDL; Newark, Del.; www.whitedoglabs.com)…

Member Exclusive

Facts at your Fingertips: Thermal Oxidizer Selection

Thermal oxidizers are pollution-control units designed to prevent process-generated volatile organic compounds (VOCs) from entering the environment. Different technologies offer tradeoffs among initial cost, operating expense, complexity, emissions, fuel efficiency and destruction efficiency. This one-page reference provides information on selecting…

Technology Profile: Acrylonitrile Butadiene Latex Production

This column is based on “Acrylonitrile Butadiene Latex Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/nitrile-rubber-production-cost. Nitrile rubber (also known as NBR, acrylonitrile butadiene rubber, acrylonitrile butadiene latex, Buna-N) is a synthetic polymer…

Understand and Mitigate Waterhammer in Fluid Processes

Waterhammer arises because of sudden changes in fluid flow, and can present significant problems in processes that involve flowing liquids. This article outlines these potential issues and offers guidance for handling the pressure changes arising from waterhammer Most large-scale processes…

Sealing Technology for Caustic Service

This overview compares various sealing technologies, and points out advantages and disadvantages of applying different mechanical-sealing designs for caustic fluids Caustic applications in chemical plants can play havoc on the mechanical seals of rotating equipment. These applications can be difficult…

VDMA Fuel Cell working group expands

At the digital general meeting of the VDMA Fuel Cell Working Group, Fabian Kapp, Managing Director of Graebener Maschinentechnik, was elected to the board, which consists of five members.   Fabian Kapp: "I am very pleased about the election and…