Hydrocarbon group-type analyzer system

Details Hydrocarbon group-type analyzer system Hydrocarbon group-type analyzer system

1988-02-12

1989-02-07

Therkorn, Ernest G.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210656, 2101982, 73 611C, 436161, B01D 1508

Patent

active

048029866

ABSTRACT:
This invention concerns analysis by high performance liquid chromatography (HPLC) of crude oils and petroleum products.
In one embodiment of the invention a sample is quantitatively separated into saturates, alkyl benzenes and polynuclear aromatics using a system comprising a column packed with a porous silica packing material having a polar amino-cyano bonded phase in tandem with a column packed with a tetranitrofluorenimino packing material, and a dielectric constant detector.
In another embodiment of the invention a sample is qualitatively separated into saturates, olefins, and total aromatics using a system employing an olefin-selective column and a dielectric constant detector.

REFERENCES:
patent: 3298160 (1967-01-01), Hoffman
patent: 3940972 (1976-03-01), Norrell
patent: 3966596 (1976-06-01), Stevens
patent: 3987058 (1976-10-01), Saunders
patent: 4003243 (1977-01-01), Blu
patent: 4254656 (1981-03-01), Sanford
patent: 4341634 (1982-07-01), Matsushita
patent: 4366060 (1982-12-01), Leiser
patent: 4446105 (1984-05-01), Dinsmore

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