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September chementator briefs

By Edited by Gerald Ondrey |

  Worlds largest PDH unit Lummus Technology (Bloomfield, N.J.), a CB&I company (The Woodlands, Tex.; www.cbi.com), has been awarded a contract by Tianjin Bohua Petrochemical Co. for the license and engineering design of a grassroots propane dehydrogenation (PDH) unit to be built in Tianjin, China. It will be the first PDH plant in China, and upon startup in 2012, will be the largest PDH plant in the world, says CB&I. The unit will use the Catofin dehydrogenation process to produce 600,000 metric tons per year of propylene. (for more on Catofin and PDH, see Pushing Propylene Production, CE, March 2004, pp. 20–24) Nanofiber applications Last month, DuPont (Wilmington, Del.; www.dupont.com) introduced the first nanofiber-based polymeric battery separator that boosts the performance and safety of lithium-ion batteries. Tradenamed Energain, the separators are said to increase power by 15–20%, increase battery life by up to 20% and improve battery safety by providing stability at high temperatures. The battery separators are made into a web using a proprietary spinning process that creates continuous filaments with diameters between 200 and 1,000 nm. The company has begun construction on a facility in Chesterfield,…
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