Time-delay process and control system for electrostatic filter

Details Time-delay process and control system for electrostatic filter Time-delay process and control system for electrostatic filter

1980-03-20

1981-08-25

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

204188, 204302, 208177, 210243, C10G 916, C10G 932

Patent

active

042858054

ABSTRACT:
In an electrostatic filtering process, solids are removed from a solids-containing liquid using an electrostatic filter and the filter is backflushed to remove collected solids, after which power is restored to the filter for a finite time before resumption of the flow of solids-containing liquid through the filter, resulting in a reduction in contamination of the product stream following the backflushing operation. Apparatus is provided to automatically control the electrostatic filtering process. The process and apparatus can be applied in filtering the slurry oil stream in a catalyst cracking operation.

REFERENCES:
patent: 3190828 (1965-06-01), Daniel et al.
patent: 3540026 (1970-11-01), Scott
patent: 3758400 (1973-09-01), Hampton
patent: 3799855 (1974-03-01), Franse
patent: 3799856 (1974-03-01), Franse
patent: 3799857 (1974-03-01), Franse
patent: 3904509 (1975-09-01), Anthony
patent: 3928158 (1975-12-01), Fritsche et al.
patent: 4009089 (1977-02-01), Crissman et al.
patent: 4059498 (1977-11-01), Crissman et al.

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