US PATENT SUBCLASS 423 / 658.3
.~.~ By reaction of impurities in a stream containing elemental hydrogen

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

644  DF  HYDROGEN OR COMPOUND THEREOF {3}
648.1  DF  .~ Elemental hydrogen {6}
658.3.~.~ By reaction of impurities in a stream containing elemental hydrogen

DEFINITION

Classification: 423/658.3

By reaction of impurities in a stream containing elemental hydrogen:

Subject matter under subject 648.1 wherein a stream containing elemental hydrogen is enriched in hydrogen by the chemical reaction of other substances to remove them from the stream.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248, for a method of chemically purifying a gaseous stream containing hydrogen where recovery of the hydrogen is not

contemplated.

SEE OR SEARCH CLASS

95, Gas Separation: Processes, for a process for enriching a hydrogen stream by nonchemical removal of impurities therefrom.