Feed of Gases-Equipment and Systems

Agglomeration in low density fluidized beds is different in that at least part of the drying takes already place during growth and in the equipment itself The stochastic movements of gases, droplets, and particles, the occurrence of coalescence and bonding and the mechanisms of drying can be modeled and mass, particle size, heat and moisture balances can be established [B.49, B.72, B.93]. Nevertheless, it is an art, performed by experienced personnel of specialized vendors, to successfully scale-up from the performance of test units to commercial equipment and systems. Capacity increases are often obtained by installation of multiple feed points (gas and powder inlets, liquid spray nozzles), which are housed in suitably sized and shaped containments (e.g., towers). 

STABREX is easier and simpler to use compared to any other oxidant available for industrial water treatment. The product is pumped directly from returnable transporters (PortaFeed Systems)17 with standard chemical feed equipment. Previously, the only practical ways to apply bromine were to oxidize bromide solutions on-site with chlorine in dual liquid feed systems, or with one of the solid organically-stabilized bromine products applied from sidestream erosion feeders. The former is cumbersome and complex, and the latter is prone to dusting and difficult to control. Other oxidants require complex handling and feed of toxic volatile gases, unstable liquids, multiple-component products, or reactive solids. Simplicity in use results in reduced risk to workers and to the environment. 

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