US PATENT SUBCLASS 208 / 156
.~.~.~.~ Solids and contacting fluids are both in series

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}
153  DF  .~.~ Suspension system {7}
155  DF  .~.~.~ Plural zones of similar function {1}
156.~.~.~.~ Solids and contacting fluids are both in series

DEFINITION

Classification: 208/156

(under subclass 155) Processes in which both the fluid and the solids contacted thereby are passed from one reaction zone to the other reaction zone successively, either counter-current to each other or concurrent with each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49+, for plural serial stages of named mineral oil conversion processes.