US PATENT SUBCLASS 208 / 170
.~.~.~ Size stratification prevention


Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
146  DF  .~ Solids contacting and mixing {8}
165  DF  .~.~ Gravitating compact beds {7}
170.~.~.~ Size stratification prevention


DEFINITION

Classification: 208/170

(under subclass 165) Processes which include some step to

prevent the solids in the gravitating bed from becoming nonuniformly distributed as to particle size over the horizontal cross-section of the bed.

(1) Note. The technique provided for in this subclass prevents sizing of the solids as might occur when solids are discharged onto the mass from a central point and the fines tend to sift downward to form a pile and coarser particles roll outward across the surface of the pile. A baffling of the flow, for example, will prevent this stratification of the different size particles.