Feed foaming

Care needed not to feed foams or liquids into the flare stack. 

Require backup systems to monitor flame and provide pilot burning. Care needed not to feed foams or liquids into the flare stack. Because of maintenance of flare tip on elevated flares (and even some open ground and enclosed ground flares), crane or helicopter required possibly for access. Connection often needed for backup flare system, i.e., portable trailer flare or other temporary flare. 

In summary of foam-spray drying, all available literature results confirm a strong effect of feed foaming on final product properties of porous and skin-forming materials, for example, an increase of Sauter mean diameter and porosity of the products decrease of bulk, tap density, and apparent density and effect on particle morphology. Foam-spray drying enhances retention of highly volatile substances and... 

Two main methods have been developed for feed foaming applied to spray drying, namely gas-desorption and gas-admixing. In the gas-desorption method, the gas (CO2) is dissolved in the liquid feed under moderate pressure subsequently, after atomization, droplets supersaturated with the gas are formed, such that the bubbles become nucleated and grow within the droplets. 

A systematic analysis of the foam spray drying process, including investigations of spray hydrodynamics (particle size distribution, particle velocity, centricity), heat and mass transfer between the phases, drying kinetics and the effects of feed foaming on final product properties, was carried out by Zbicinski and Rabaeva (2010) and Rabaeva (2012). 

No effect of feed foaming was reported on the spray hydrodynamics for all admixed gas flow rates. 

AD available studies revealed a strong effect of feed foaming on the final product properties. 

No significant effect of feed foaming on the solubility of maltodextrin was observed in the tests performed, whereas a lower solubility of the detergent could be explained by its chemical composition vrith poorly soluble components in the formula. 

The natural angle of repose, which determined the looseness of powders, is not significantly affected by feed foaming. A slight reduction in the natural angle of repose for maltodextrin was observed with an increase of the foaming gas flow rate (Tabs. 6.3 and 6.4), which was caused by the formation of more cohesive particles (Teunou et al., 1995). 

Rhodorsil Antifoam 454 defoamer, animal blood dehydration Formula 65-B defoamer, animal feed Foam Blast 102K Foam Blast 150K defoamer, antibiotic fermentation Cleral FBA 5059 K... 

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