Bubble breakers

An important goal in bubbler design is to break the larger bubbles into smaller bubbles, which allows more gas surface to be scrubbed. This is usually accomplished with screen mesh of various sizes, or porous media such as aquarium stones. However, if too fine a mesh or porous material is used to break up the bubbles, particulate contaminants will sooner or later clog the fine mesh or the pores of the dispersal stone. If a bubbler is designed for easy disassembly, then the mesh or stone can be cleaned or replaced, and this may not be a concern. Also, fine porous stones and very fine mesh require more pressure to push the gas through them. [Pg.175]

This particular bubbler is designed for trouble free service for a long period of time. It has a larger mesh which is less susceptible to clogging. [Pg.175]

The scrubbing action may not be as effective as it would be with a finer mesh, but it can be permanently enclosed. Also, because of the larger mesh, gross obstructions (though unlikely) can be cleared by simply running water through the bubbler. [Pg.175]

There are many porous materials and mesh sizes that are promising and worth trying for improving the scrubbing process. [Pg.175]

Other factors that affect the scrubbing process are the distance of bubble travel in the liquid and the volume of liquid in the bubbler. The further the bubbles travel, the more they are scrubbed. [Pg.176]

B. typhosus Bubble Breaker Bubble jet technology Bubble memory devices Bubble packs Bubble-point test Bubble shapes Bubbling-bed design Buccal tablets Bucherer-Bergs reaction Bucherer reaction Bucherer synthesis Bucidovir [86304-28-1]... [Pg.135]

Bubble Breaker Witco Cotp. inks and coatings foam control agents... [Pg.464]

The use of floating bubble breakers has been used to increase the volumetric mass transfer coefficient in a three-phase fluidized bed of glass beads (Kang et al., 1991) perhaps a similar strategy would prove effective for a bed of low density beads. Static mixers have been shown to increase kxa for otherwise constant process conditions by increasing the gas holdup and, therefore, the interfacial area (Potthoff and Bohnet, 1993). [Pg.650]

Bubble Breaker 259,260,613-M, 622, 730,737,746,748, 900,913,917 defoamer, aq. pigmented coatings Antibubble DF-181 defoamer, aq. pigmented dispersions Antibubble DF-181 defoamer, aq. pigmented systems TEGO Foamex 822 defoamer, aq. pigments Antibubble DF-181 defoamer, aq. preps. [Pg.1492]

Ablunol 200MS Ablunol 400MS Ablunol 600MS Advantage 1280PD AF 60 AF 9000 Amgard TBEP Antarox 17-R-2 Antarox 17-R-4 Antarox 25-R-2 Antarox 31-R-1 Balab 748 Balab 3056A Bubble Breaker 259, 260,613-M, 622,730,737,746, 748,900,913, 917 BYK -085 Chemax DF-10 ... [Pg.1495]

Rb volume ratio of floating bubble breaker to the fluidized particle (—)... [Pg.152]

Kim JO, Kim SD. Bubble breakage phenomena, phase holdups and mass transfer in three-phase fluidized beds with floating bubble breakers. Chem. Eng. Process. 1990 28 101-111. [Pg.155]

Kang Y, Fan UT, Min BT, Kim SD. Promotion of oxygen transfer in three-phase fluidized-bed bioreactors by floating bubble breakers. Biotechnol. Bioeng. 1991 7 580-586. [Pg.155]

Uses Defoamerfor aq. paper coatings, textile processing fonnulations, agric. chemical prods., paints, adhesives, inks, and personal care fonnulalions Bubble Breaker 748 [Witco ]... [Pg.1348]

Uses Defoamerfor latex mfg., aq. paints and adhesives Bubble Breaker 900 [Witco ]... [Pg.1348]

Uses Defoamer for wash water of sliced potatoes Bubble Breaker 3017-A [Witco ]... [Pg.1348]

Bubble Breaker 3073-7, D [Witco j Chem. Descrip. Blend of org., nonsilicone compds. [Pg.1349]

Uses Defoamer for aq. drilling for the petrol, industry Bubble Breaker 3295 [Witco ]... [Pg.1349]

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