US PATENT SUBCLASS 585 / 256
.~.~ Molecular weight reduction

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

250  DF  ADDING HYDROGEN TO UNSATURATED BOND OF HYDROCARBON, I.E., HYDROGENATION {10}
254  DF  .~ With preliminary diverse conversion {2}
256.~.~ Molecular weight reduction

DEFINITION

Classification: 585/256

Molecular weight reduction:

(under subclass 254) Subject matter wherein, prior to hydrogenation, the feedstock is treated to remove hydrogen and/or carbon from some or all of its molecules.