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Supercritical CO2 Brayton-cycle system packs efficiency into small footprint

Electricity generation of 240 kW has been demonstrated in a Brayton-cycle system that uses supercritical carbon dioxide as the working fluid. Developed by researchers at Sandia National Laboratory (Albuquerque, N.M.; www.sandia.gov) and built by Barber Nichols Inc. (Arvada, Colo.; www.barber-nichols.com),…

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New condenser design for Claus tail gas slashes refrigeration duty

Last month, at the AIChE Spring Meeting in Chicago, Henry Kister, director of Fractionation Technology at Fluor Corp. (Aliso Viejo, Calif.; www.fluor.com) presented a patent pending process (U.S. Patent Application WO/2011/016797) that promises to cut energy demand and capital costs…

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Commercial testing set for ‘smooth’ emulsification technology

A new emulsification process, known as Smooth, has been developed by Velocys, Inc. (Columbus, Ohio; www.velocys.com) — a member of the Oxford Catalyst Group Plc. (Abingdon, U.K.) — and is now ready for testing at the commercial scale. Smooth technology…

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A step toward industrial production of perillic acid

Last month, Brain AG (Zwingenberg; www.brain-biotech.de) and Dechema e.V. (Frankfurt am Main, both Germany; www.dechema.de) began a collaboration in the biotechnological production of perillic acid — a patented natural monoterpene owned by Brain, with promising applications as a bioactive compound…

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Making a polyester feedstock from coal

Ube Industries, Ltd. (UBE; www. ube-ind.co.jp) and HighChem Co. (both Tokyo; www.highchem.co.jp) will license their technologies for transforming coal-derived synthesis gas (syngas) into manufacturing ethylene glycol (MEG) — a polyester feedstock — to Qianxixian Qianxi Coal Chemical Investment Co. (Guizhou,…

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A lower-energy approach to natural gas ‘sweetening’

A new method for removing hydrogen sulfide from natural gas at ambient temperatures could allow significant energy savings compared to the current technique and increase the range of H2S concentrations in natural gas that are economically viable to extract from…

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New propylene and butadiene process could be utilized next year

By the end of this year, Asahi Kasei Chemicals Corp. (Tokyo; www.asahi-kasei.co.jp) plans to complete development on two processes that utilize excess C2 and C4 fractions for producing propylene and butadiene, and if all goes smoothly, implement them by March…

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April Chementator briefs

  Recycling copper Steinert Elektromagnetbau GmbH (Cologne, Germany; www.steinert.de) has recently installed its first XSS-F unit — said to be the worlds first inline system designed to extract copper from shredded ferrous scrap. Installed at a German recycling yard, the…

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Zero-liquid-discharge desalination system offers brine disposal alternative

A desalination system developed by Watervap LLC (Marble Hill, Ga.; www.h2ovap.com) separates saltwater of any concentration into highly purified water and dry solid minerals with high efficiency. The company’s Zero Liquid Discharge (ZLD) process represents a low-cost alternative to brine…

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A new catalyst for C-C and crossed-coupling

Tokyo Chemical Industry Co. (TCI; Tokyo; www.tokyokasei.co.jp) is planning full-scale production of a new palladium-complex catalyst, trade-named SingaCycle-E1, for performing Heck-Mizoroki carbon-carbon coupling reactions and the Suzuki-Miyaura cross-coupling reaction — both reactions of importance for producing pharmaceuticals. TCI says SingaCycle-E1…