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Chemical Engineering

Protecting Steam Systems from Corrosion

Steam and condensate-return systems can be susceptible to unique forms of corrosion. This overview explains how to prevent or minimize such issues Steam is utilized for process heating and other applications at thousands of industrial plants in the chemical process…

Extracting zinc from flyash

In Sweden, incineration of household waste in waste-to-energy (WtE) plants is common, and generates around 250,000 metric tons (m.t.) of flyash every year. The rest of Europe accounts for around ten times that amount. Most of this waste is landfilled,…

Area Electrical Classification in Research Applications: Is It the Only Mitigative Choice?

Area electrical classification is a powerful tool for process safety. It is not, however, the only viable approach to a safe process Electrically classifying an area is a long-standing safety measure in the petrochemical and related industries. It is also…

Printing sensors onto stickers

Advanced sensors are crucial to any predictive maintenance strategy, and often these sensors must be quickly installed into difficult-to-reach spaces. A novel nanomaterial technology enables predictive sensors that can be “printed” onto flexible stickers. These stickers can be easily attached…

February Chementator Briefs

Ammonia catalyst Clariant Catalyst (Munich, Germany; www.clariant.com) and Casale SA (Lugano, Switzerland; www.casale.ch) have developed a new ammonia synthesis catalyst for sustainable CO2 reduction. Based on Clariant’s AmoMax 10 — a wüstite-based alternative to traditional magnetite-based catalysts — the AmoMax-Casale…

Metal-oxide nanocrystals have applications in lubrication and electronics displays

Pixelligent Technologies Inc. (Baltimore, Md.; www.pixelligent.com) has developed a process for making metal-oxide nanocrystaline materials that have found uses as additives in a variety of industrial lubricants, mixed- and augmented-reality (AR/MR) glasses, and various display technologies. The company’s PixClearProcess results…

Nanoscale uniformity of desalination membranes

Reverse-osmosis (RO) desalination membranes use a polyamide selective layer formed on a microporous support to separate water molecules from salts. Past efforts to characterize the polyamide membrane structure have been limited by the internal variability of the selective layer. Now,…

A microreactor for continuous formation of Grignard reagents

Today, synthetic routes to about 10% of the top 50 active pharmaceutical ingredients (APIs) include one or more Grignard reactions, which are used to form C–C bonds. Normally, the reaction is performed batch-wise in continuous stirred-tank reactors (CSTRs), with Grignard…

A major project targets sustainable urea production

A consortium, led by the Netherlands Organization for Applied Scientific Research (TNO; The Hague; www.tno.nl), has received an exceptional grant of €21 million from the European Commission under the Horizon 2020 Framework Program to investigate and develop the potential of…

Bacteria for wastewater treatment

Researchers from the National University of Singapore (www.nus.edu.sg), led by associate professor He Jianzhong, have found a new strain of bacterium called Thauera sp. strain SND5, which is capable of simultaneous nitrification and denitrification and phosphate removal from wastewater. The…