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By Gerald Ondrey |

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Efficient distillation Toyo Engineering Corp. (Toyo; Chiba, www.toyo-eng.co.jp) has completed construction for an energy-saving distillation system used in a project for Maruzen Petrochemical Co. (Tokyo, Japan; www.chemiway.co.jp). This system, tradenamed SuperHIDiC, has achieved an energy saving of over 50% compared with conventional distillation, says Toyo. The newly installed system was designed with the aim of providing large energy savings for the methyl ethyl ketone (MEK) production plant at Maruzen Petrochemical site in Chiba Prefecture, and is the first commercial application of a SuperHIDiC system. SuperHIDiC is based on the heat-integrated distillation column (HIDiC) technology, which has been researched for many years by companies, universities and research institutions around the world. Toyo has further refined this technology (Chem. Eng., January, p. 10; www.chemengonline.com/this-distillation-column-promises-substantial-energy-reductions), in collaboration with the National Institute of Advanced Industrial Science and Technology (AIST; Tokyo, www.aist.go.jp), and plants to expand commercial applications.
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