초록 ▼

A gas distribution grid for a slurry reactor includes a plurality of gas injectors horizontally arrayed across, and extending through, an otherwise gas and liquid impervious plate. The injectors have a throat open at both ends, with a gas pressure reducing bore at one end which is the entrance end a

A gas distribution grid for a slurry reactor includes a plurality of gas injectors horizontally arrayed across, and extending through, an otherwise gas and liquid impervious plate. The injectors have a throat open at both ends, with a gas pressure reducing bore at one end which is the entrance end and with the other end opening into an upward opening cone. Flow diverting means in the injectors prevents slurry solids from entering the throat and being attrited by the high velocity gas jet exiting the bore into the throat. It is preferred that the gas injectors not protrude above the top surface of the grid and flat space is eliminated by means such as angular fillers, to prevent solids accumulation top of the grid. A chamfer may be present at the junction of the bore and throat to prevent unrestricted expansion of the gas jet entering the throat. This is useful for injecting gas into a reactive hydrocarbon synthesis slurry in a slurry reactor, with reduced catalyst attrition and deactivation.

대표청구항 ▼

[What is claimed is:] [18.]said first gas expansion zone having gas entrance and exit ends at opposite ends of its longitudinal axis, an inner wall and a substantially constant cross-sectional area perpendicular to said axis, which area is larger than that of said orifice,said exit end of said first

[What is claimed is:] [18.]said first gas expansion zone having gas entrance and exit ends at opposite ends of its longitudinal axis, an inner wall and a substantially constant cross-sectional area perpendicular to said axis, which area is larger than that of said orifice,said exit end of said first gas expansion zone opening into a gas entrance of a second gas expansion zone having gas entrance and exit ends at opposite ends of its longitudinal axis, an inner wall and a cross-sectional area perpendicular to said axis that increases from said entrance to exit, wherein said second zone entrance has a cross-sectional area larger than that of said first zone gas exit.