Filtering process

Details Filtering process Filtering process

1975-08-01

1977-05-10

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

208113, B03C 500, C10G 1100

Patent

active

040226751

ABSTRACT:
A process for separating finely divided, electrically conductive materials from hot liquid hydrocarbon feed stock for a fixed bed catalytic process such as hydrodesulfurization of gas oils or heavier petroleum fractions or hydrocracking. The feed stock is made to flow longitudinally between electrodes and through a bed of spherical glass particles. A voltage gradient of 5 to 25 kv per inch is applied to the electrodes. Periodically the filter is cleaned by backflushing with filtered product. The backflush liquid and entrained solids are delivered into a fluidized unit to dispose of the solids removed in the backflush liquid. In a specific embodiment, the backflush liquid and entrained solids are delivered into a fluidized catalytic cracking unit.

REFERENCES:
patent: 3799855 (1974-03-01), Franse
patent: 3799856 (1974-03-01), Franse
patent: 3928158 (1975-12-01), Fritsche

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