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Chementator: Controling corrosion and odor from sewers    

At last month’s IFAT Trade Exhibition (May 5 – 9; Munich, Germany), Kemira Water (Helsingborg, Finland; edlinks.chemengonline.com/7373-542) introduced, H2S-Guard, a system that monitors, controls and protects against odor and corrosion in sewage networks. The system consists of H2S measurement devices…

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Chementator: Smart pump control  

Kadant AES (Queensbury, N.Y.; edlinks.chemengonline.com/7373-543) has introduced a patented control technology for high-pressure positive-displacement (HPPD) pumps, which is said to be capable of reducing energy usage by up to 60%. The so-called UniGY PhD (Pump-modeling hydraulic drive) uses pump-modeling software…

Chementator: Plastics from CO2?  

Researchers from the Organic Chemistry Dept. at Newcastle University (U.K.; edlinks.chemengonline.com/7373-544) have developed aluminium (salen) complexes that exhibit "exceptional" activity for catalyzing the synthesis of cyclic carbonates from CO2 and epoxides. Cyclic carbonates are widely used for the production of…

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Chementator: Improved transistor    

Researchers at the Faculty of Engineering, Lund University (Sweden; edlinks.chemengonline.com/7373-545) have used nanotechnology to develop a transistor that is said to be 50 times more energy efficient that conventional models. The prototype transistor is made of indium arsenide, where the…

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Chementator: A barrier for PVs    

Honeywell Specialty Materials (Morristown, N.J.; edlinks.chemengonline.com/7373-546) has launched PowerShield PV325, a material that protects photovoltaic (PV) modules — including the critical components that convert sunlight into electricity — in all types of environments. The material is ultraviolet, moisture and weather…

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Chementator: Catalyst loading  

TubeMaster, Inc. (Louisville, Ky.; edlinks.chemengonline.com/7373-547) has filed U.S. and foreign patents for Dog-leg — claimed to be the world’s first articulating catalyst-loading device that permits loading of single and multi-layer catalyst to any height or outage, regardless of reactor vertical-head…

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Chementator:  A dynamic way to reduce NOx emissions from FCCs  

A system for controlling oxides-of-nitrogen (NOx) emissions from catalyst regenerators in fluid catalytic crackers (FCCs) has cut NOx output to below 40 ppm (and as low as 25 ppm under certain conditions) in its first commercial installation, according to its…

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Chementator: A propane-based AN process makes its commercial debut  

This summer, Asahi Kasei Chemicals Corp. (AKCC; Tokyo, Japan; edlinks.chemengonline.com/7373-532) plans to begin construction on a plant for producing 200,000 m.t./yr of acrylonitrile (AN) and a plant for making 70,000 m.t./yr of methyl methacrylate (MMA), at Map Ta Phut, Rayong,…

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Chementator: This Catalyst Helps Visible Light Split Water into H2 and O2  

Normally, only the ultraviolet (higher energy) component of the solar spectrum is usable for the photo-catalytic electrolysis of water into hydrogen and oxygen, which takes place in photochemical cells with an anode made of single-crystalline, rutile-type titanium oxide and a…

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Chementator: Improving the Performance of HDS Catalysts  

Researchers at Oxford Catalysts Ltd. (Oxford, U.K.; edlinks.chemengonline.com/7372-534) have shown that the method of preparation — rather than the identity or combination of metals used — has the greatest influence on the performance of hydrodesulfurization (HDS) catalysts. The results of…