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US 5,395,597 AGranted
Solids feeder with integrated supply of carrier gas
AssigneeMobil Oil Corporation
InventorsJohn S. Buchanan, Hans J. Schoennagel
Life of this patent
Estimating the term…
Abstract
An apparatus for fluidized transport of solids, e.g., catalyst to a pilot plant FCC unit. Carrier gas flow is generated by compressing a sealed bellows to displace gas and an exit tube attached to the bellows into a solids reservoir. A confinement baffle in the solids reservoir controls solids flow and aids refilling. An auxiliary breather tube with an outlet in the solids reservoir can fluidize solids as the bellows expands.
Claims12
An apparatus for delivering solid particulates comprising:
- a collapsible sealed vessel containing a volume of gas and an outlet for fluidizable solids entrained in gas;
- a solids reservoir within said sealed vessel;
- an exit tube affixed to a top portion of the collapsible sealed vessel and movable relative to said solids reservoir for fluidizable solids having an inlet within said reservoir and an outlet connected to said outlet of said sealed vessel, said exit tube descending into said reservoir as said sealed vessel is collapsed, and
- a breather tube passing through said sealed vessel and having an outlet within said solids reservoir.
1 more element
An apparatus for delivering solid particulates comprising:
- a collapsible sealed vessel having in an upper portion thereof a collapsible bellows having an upper horizontal surface having a diameter D2 separated from a lower horizontal surface by an accordion fold bellows and containing a volume of gas and an outlet for fluidizable solids entrained in gas;
- a solids reservoir affixed to or within said lower horizontal surface, said solids reservoir having an open, vertical, cylindrical tube, having a diameter D1, solids confinement means disposed within said reservoir, said confinement means having an opening at an upper portion thereof receiving an exit tube for fluidizable solids and an opening at a lower portion thereof receiving solids from said solids reservoir, and wherein the ratio D2/D1 is 2.5 to 5;
- said exit tube for fluidizable solids connected at one end to said upper collapsible surface and at another end thereof to an inlet descending into said reservoir as said bellows is collapsed, and
- a breather tube passing through said sealed vessel and having an outlet within said solids reservoir.
1 more element
Dependencies are inferred from the claim text.