The removal of dirt from a solid by a gas or liquid jet carrying abrasives to ablate the surface.



Related Terms

PETROLEUM

A liquid mineral oil which has a color range from slightly yellow to black derived from liquid and solid hydrocarbons found naturally in the earth's strata and which can be refined into products ranging from asphalt, waxes, naphtha, kerosene, diesel, jet fuel, gasoline, solvents, chemicals, and natural gases.

BASKET STRAINER

A porous-sided or screen-covered vessel used to screen solid particles out of liquid or gas streams.

DRY BED

A configuration of solid adsorption materials, for example molecular sieves or charcoal, used to recover liquid from or purify a gas stream.

GAS FILTER

A device used to remove liquid or solid particles from a flowing gas stream.

COALESCENT PACK

High-surface area packing to consolidate liquid droplets for gravity separation from a second phase (for example, gas or immiscible liquid); packing must be wettable by the droplet phase; Berl saddles, Raschig rings, knitted wire mesh, excelsior, and similar materials are used.

ETHYLENE GLYCOL

A substance injected in the gas steam to prevent the freezing of the condensed liquid to prevent the formation of hydrates.

ARCOMETER

A device for determining the density of a liquid by measuring the apparent weight loss of a solid of known mass and volume when it is immersed in the liquid.

VORTEX

(1) The swirling motion of a liquid in a vessel at the entrance to a discharge nozzle. (2) The point in a cyclonic gas path where the two spirals change general direction by 180o.

SEMISOLID

Any substance having the attributes of both a solid and a liquid. Similar to semiliquid but being more closely related to a solid than a liquid. More generally, any substance in which the force required to produce a deformation depends both on the magnitude and on the rate of the deformation.

EBULLATING-BED REACTOR

A type of fluidized bed in which catalyst particles are held in suspension by the upward movement of the eccentric bit liquid reactant and gas flow.

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