US PATENT SUBCLASS 588 / 208
.~.~.~ Hydropyrolysis or destructive steam gasification

Current as of: June, 1999
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588 /   HD   HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT

205  DF  ORGANIC SUBSTANCE DESTROYED {8}
206  DF  .~ Halogen attached directly to carbon by nonionic bonding {3}
207  DF  .~.~ Halogen attached directly to benzene ring by nonionic bonding (e.g., PCB's) {3}
208.~.~.~ Hydropyrolysis or destructive steam gasification

DEFINITION

Classification: 588/208

Hydropyrolysis or destructive steam gasification:

(under subclass 207) Process wherein water or steam is used in a thermal process for converting the halogen containing compound into an environmentally safe substance.

SEE OR SEARCH CLASS

48, Gas: Heating and Illuminating,

197+, for processes of gasification to produce a heating or illuminating gas.

201, Distillation: Processes, Thermolytic,

32+, for the addition of disparate gaseous material to a carbonizing zone.

202, Distillation: Apparatus,

96+, for thermolytic type apparatus. 203, Distillation: Processes, Separatory,

28+, for the processes with a chemical reaction and subclasses 95+ for the addition of water or steam.

431, Combustion,

4, for feeding a flame modifying additive and subclass 5 for burning waste gas.