Reactor Davy Process Technology

Stirred tank reactors are mostly used because they provide a rapid means of obtaining a uniform composition and temperature throughout the reaction mixture they also offer the flexibility required for the small-scale production of many different molecules. Companies such as Biazzi, Davy Process Technology (Buss loop technology), DeDietrich and others provide technology adapted to hydrogenations (i.e., pressures up to 100 bar and temperatures up to 200 °C) [45-47]. Here, some scale-up issues related to stirred tank reactors are described. 

Many plants have been designed and operated on a batch system with various stirring systems and recirculation loops since the early 1950s but the latest thinking for bulk production is probably the plants that Davy Process Technology has developed for alkoxylation. At least 10 plants of its design have been put into beneficial operation since they were first introduced in 1990 and are based on the Buss Loop Reactor technology. 

Davy Process Technology, UK Ethyl acetate Ethanol Ethanol is dehydrogenated to form ethyl acetate and hydrogen. Heat exchanger separates hydrogen from crude product before it is polished in second catalytic reactor. Polished product is then passed through distillation train to produce unreacted ethanol (which is recycled) and ethyl acetate. 3 NA... 

Davy Process Technology, UK Dimethylformamide (DMF) Dimethylamine (DMA) and carbon monoxide (CO) DMA and CO are fed to specialized reactor containing a catalyst dissolved in solvent. A separation system then separates the spent catalyst. Excess DMA and catalyst solvent are stripped from the crude product. Next, vacuum distillation followed by purification produces fiber-grade DMF 15 2010... 

This process has been developed for propene hydroformylation by Mitsubishi Chemical and Union Carbide/Davy Process Technology [32, 33, 36], as improvement of the stripping reactor concept. Product is now removed from the reactors via the liquid phase and carefully evaporated from the catalyst. The uncoupling of reactor and product/catalyst separation... 

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