F25J2220/00 - CPC Classification Index

ClassID:

160422 ⎘

F25J2220/00 - CPC Classification

Classification description:

Processes or apparatus involving steps for the removal of impurities

Sub-classes:

F25J2220/02 » Separating impurities in general from the feed stream 79
F25J2220/04 » Separating impurities in general from the product stream 14
F25J2220/40 » Separating high boiling, i.e. less volatile components from air, e.g. CO, hydrocarbons 36
F25J2220/42 » Separating low boiling i.e. more volatile components from nitrogen, e.g. He, H, Ne 3
F25J2220/44 » Separating high boiling, i.e. less volatile components from nitrogen, e.g. CO, Ar, O, hydrocarbons 18
F25J2220/50 » Separating low boiling, i.e. more volatile components from oxygen, e.g. N, Ar 12
F25J2220/52 » Separating high boiling, i.e. less volatile components from oxygen, e.g. Kr, Xe, Hydrocarbons, Nitrous oxides, O 4
F25J2220/60 » Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons 68
F25J2220/80 » Separating impurities from carbon dioxide, e.g. HO or water-soluble contaminants 33
F25J2220/90 » Separating isotopes of a component, e.g. H, O 11

Recent Application in this class:

20160102262

SYSTEM AND METHOD FOR SUBSEA COOLING A WELLHEAD GAS TO PRODUCE A SINGLE PHASE DEW-POINTED GAS

20150107297

Temperature controlled method to liquefy gas and a production plant using the method