Together with the German Degussa AG, successful pilot plant test for the purification of hydrogen peroxide have been performed. Since hydrogen peroxide has a high energy content and decomposes to water and oxygen it is used as an oxidizer/propellant for aircraft rockets in space technology. Process safety has been the mayor incentive for Degussa when they decided to investigate the GEA Messo PT technology for their application in more detail. At an impurity level in the crystallizer of 15 wt% purification ratios between 300 and 3000 have been achieved. During the tests hydrogen peroxide was produced at concentrations between 99.9 wt% and 100 wt% and at a surprisingly low amount of other impurities usually under or close to the detection limit of the individual components. The high efficiency of the wash column separation becomes apparent when comparing this with “normal” centrifuge separation. Wash column separation was typically a factor 10 better than conventional centrifuges.
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