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Solid catalyst simplifies turning algae into biodiesel

Researchers at United Environment & Energy (UE&E; Horseheads, N.Y.) have developed a catalyst for the efficient conversion of algae to biodiesel. The mixed-metal oxide catalyst (comprised of metals that are resistant to corrosion yet reactive) facilitates the transesterification of algae…

Cover Story: Solar’s Second Coming

Nearly 30 years ago (May 6, 1979), U.S. President Jimmy Carter made the following prophetic statement at the inauguration of a solar-thermal water heater installed on the White House roof: "In the year 2000, the solar heater behind me will…

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Chementator: A more efficient way to extract energy from coal

A process that produces hydrogen from coal with close to 80% energy conversion efficiency, plus coproduction of a carbon-dioxide-rich stream for sequestration, is being developed at Ohio State University (Columbus, Ohio; www.osu.edu). This compares with around 60% conversion efficiency for…

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Chementator: Using the sun to keep Australians cool

CSIRO Energy Technology (Newcastle, New South Wales, Australia; www.csiro.au) is developing a solar-powered air conditioning unit for residential use, using a desiccant-evaporative process to provide cool and dehumidified air. Thermally driven ab- or adsorption chillers are commonly used to provide…

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Chementator: Eni orders world’s largest reactors

Last month, GE Oil & Gas (Florence, Italy; www.ge.com/oilandgas) received a contract to supply Eni S.p.A. (Rome; www.eni.it) with the largest refinery reactors of their type ever to be manufactured. GE Oil & Gas’ components-production facility in Massa, Italy, will…

This heat exchanger holds up to a thousand plates in its frame

The new NT 500 plate heat exchanger sets new performance standards with a volume flow of up to 4,500 m3/h. The steel frame can hold up to a thousand plates, and the largest version is 4.7-m high and 1.6-m wide.…

Turn wastewater into a source of low-cost electricity

The Megawatter platform is a commercial implementation of Microbial Fuel Cells (MFC) technology for direct electricity or hydrogen generation on a large scale, while using wastewater as fuel by treating the organic materials dissolved in water as a source of…

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Chementator: Construction to begin on a large solar plant in Spain

Thanks to a €171-million financing deal, construction can begin on what is claimed to be the world’s first utility-grade solar power plant with central tower and salt receiver technology. When the so-called Gemasolar plant — located in Fuentes de Andalucia,…

This centrifugal reactor/separator speeds up biodiesel production

A continuous process for producing biodiesel that has a residence time of about one minute, versus several hours for a conventional batch process, has been developed at Oak Ridge National Laboratory (ORNL; Oak Ridge, Tenn.; www.ornl.gov). The process uses a…

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Chementator: A pilot-step closer to second-generation biofuels

Lurgi GmbH (Frankfurt, Germany; www.lurgi.com) is building a pilot plant to demonstrate the viability of its three-stage bioliq process for producing liquid fuels from biomass. The pilot plant — an entrained-flow gasifier for the production of synthesis gas — will…