초록 ▼

A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each having an open fluid conduit depending from an or

A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each having an open fluid conduit depending from an orifice in the bottom. The downcomer is useful in a slurry hydrocarbon synthesis process for forming a catalyst and gas reduced slurry which is passed to a liquid filter to remove hydrocarbon liquid from the slurry reactor.

대표청구항 ▼

[ What is claimed is:] [1.]1. A vessel comprising:an outer shell containing a three phase slurry,a feed inlet entering said vessel,an outlet from said vessel,at least one downcomer immersed in said slurry comprising at least one inner gas-and-solids-disengaging zone and at least one outer gas-and-so

[ What is claimed is:] [1.]1. A vessel comprising:an outer shell containing a three phase slurry,a feed inlet entering said vessel,an outlet from said vessel,at least one downcomer immersed in said slurry comprising at least one inner gas-and-solids-disengaging zone and at least one outer gas-and-solids-disengaging zone, whereby said outer zone peripherally surrounds said inner zone, and said inner and outer zones being in fluid communication,said outer zone comprising the area between an outer wall and an inner wall,said inner zone comprising the area within said inner wall,each said zone further comprising a zone bottoms,each said zone bottoms containing at least one orifice within said zone bottoms opening into at least one zone-respective hollow downcomer conduit which extends downward from said zone bottoms,whereby said downcomer is positioned such that said slurry will flow over said outer zone's said outer wall into said outer zone and said inner wall functions as a weir means for a gas-and-solids-reduced slurry present in said outer zone to flow over said inner wall into said inner zone,whereby said orifice permits slurry in said outer and inner zones to flow out of said outer and inner zones and through said downcomer conduits into said slurry.