DIFF Subgroup
C10G 45/26 Steam or water
Introduced: January 1980
Full Title
Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds > to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing > with hydrogen-generating compounds > Steam or water
No child classifications to compare. This is a leaf node in both IPC and CPC.