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Improved catalyst production lowers electrolysis costs

Water electrolysis is widely used for hydrogen production, but there are still high costs associated with manufacturing advanced electrolysis catalysts, which may involve high temperatures and pressures or chemical vapor deposition. Extending research conducted at the University of Kansas’ Bioscience…

Level switches for dust collectors and more

The DJ level switch (photo) provides high- or low-point level detection of bulk solids. The DJ detector operates successfully on baghouses, cyclone separators and above airlocks. Consistent results have been achieved on chemical powders, minerals and many other granulated materials.…

Enzymatic conversion of waste algae into specialty chemicals

Waste algae from municipal wastewater-treatment plants is typically sent to landfills, but a new process offered by Gen3Bio, Inc. (West Lafayette, Ind.; www.gen3bio.com) aims to convert it into specialty chemicals using a proprietary blend of enzymes to break open —…

This turbidity sensor withstands aggressive media

The new Turbimax CUS50D sensor (photo) is an absorption sensor for turbidity and suspended-solids measurement in unfavorable environments. Its robust design is made to withstand aggressive media and is suitable for applications in industrial wastewater treatment or chemical processes. Turbimax…

A Simplified Approach to Crystallization Mass Balances

In continuous crystallization, it is often challenging to accurately measure mass flowrates, but the method described here enables a simpler path to a balanced crystallization process To gain optimal value from industrial crystallization processes, it is clear that understanding specific…

Low-maintenance, heavy-duty flexible conveyors

The new Flexifeeder line of flexible screw conveyors (photo) offers expanded capability with less frequent maintenance. Each Flexifeeder is matched to the individual user requirement, using both this company’s extensive installation database and complementary laboratory testing. The use of controlled…

FOG separation technology expands to new application areas

Fats, oil and grease (FOG) waste can create environmental problems for water-treatment and sewage systems, but can be a potential resource if collected and separated efficiently. A technology originally developed by Downey Ridge Environmental Co. (Lansing, W.Va.; www.greasezilla.com) to separate…

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Acid Recovery and Recycle Technologies

This overview of a number of different methods for handling spent acids will help operators select the technology most suited for a given application The most common pickling, leaching and passivation acids are the mineral acids: sulfuric, hydrochloric and nitric.…

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Gas Handling: Process Control for Compressible Flow

Controlling flow in gas-handling applications can present challenges because of the fluids’ compressibility. This article presents an overview of how compressible gases behave in response to interacting variables Gas-handling operations are common in almost every sector of the chemical process…

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Rare Noble Gases: Production and Use of Ne, Kr and Xe

Rare noble gases neon, krypton and xenon have unique properties and can be obtained from air, but the economics of isolating them at air-separation units depends on demand and pricing. This article provides information on their production and use The…