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Krupp Uhde GmbH (KU, Dortmund, Germany; kud.thyssenkrupp.com) and Synetix (Cleveland, England; synetix.com) have devised a way to increase the size and efficiency of ammonia plants, using currently available technology and catalysts. The new design can increase a plant's maximum capacity to at least 4,000 m.t./d, compared with a maximum of about 3,000 m.t./d for conventional ammonia plants, says John Larsen, a...