US PATENT SUBCLASS 208 / 153
.~.~ Suspension system

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.~.~ Suspension system {7}
154  DF  .~.~.~> Start-up and shut down procedures
155  DF  .~.~.~> Plural zones of similar function {1}
157  DF  .~.~.~> Liquid feed
158  DF  .~.~.~> With augmented turbulence (in addition to normal mixing in bed)
159  DF  .~.~.~> With temperature regulation {1}
161  DF  .~.~.~> Separation of entrained fines from effluents {1}
163  DF  .~.~.~> Fluidized dense bed {1}

DEFINITION

Classification: 208/153

(under subclass 146) Processes wherein solids are suspended in a fluid medium, and the mineral oil conversion or solids regeneration or rehabilitation takes place in the presence of the suspended solids.

(1) Note. The suspending medium may be either a liquid or a gas or vapor, and the suspension may flow similar to a liquid from a point of high elevation or pressure to one of lower elevation or pressure, or the solids may be suspended in a upward flowing fluid (fluidized dense bed), or even flow in an upward direction with the fluid, e.g., dilute or transfer line system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127, for processes of cracking in the presence of inert solids (coking) employing this type of system.

SEE OR SEARCH CLASS

201, Distillation: Processes, Thermolytic, 12, for a thermolytic distillation process in which the charge is heated by contact with a hot disparate, inert solid and subclass 31 for a fluidized bed process.

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, especially

20+, for a process of regeneration, per se, of a composition of that class.