Carbonaceous slurry combustor

In a process for combustion of particulate carbonaceous material contained in a slurry wherein combustion of carbonaceous material occurs in an elongate combustor having a contained tangential and axial flow field of a heated oxidant, the improvement comprising:

• (a) introducing a flow of slurry into an axially positioned central conduit of a nozzle body axially extending substantially into the contained tangential and axial flow field of heated oxidant in said combustor;
• (b) diverting said flow of slurry to axially oriented slurry flow inlet ports of a plurality of slurry flow conduits positioned about a flow diverting cone to first outlet slurry flow ports radially extending from the axis of said nozzle body in a direction substantially normal thereto, each first slurry flow outlet port being in communication with a second radial slurry flow port spaced from the first slurry flow outlet port by an annular space;
• and
• (c) introducing a flow of an atomizing gas to the annular space between said first and second slurry flow ports to intersect and atomize the slurry flowing from said first to said second communicating slurry flow ports in a direction normal to slurry flow, while maintaining the slurry in the nozzle below reaction temperature in said oxidant flow field by flow of a coolant through said nozzle body.

In a process for combustion of particulate carbonaceous material contained in a slurry wherein combustion of carbonaceous material occurs in an elongate combustor having a contained tangential and axial flow field of a heated oxidant, the improvement comprising:

• (a) introducing a flow of slurry into an axially positioned central conduit of a nozzle body having a manifold head end axially extending substantially into the tangential and axial flow field of heated oxidant contained in said combustor;
• (b) diverting said flow of slurry to axially oriented slurry flow inlet ports of a plurality of slurry flow conduits positioned about a flow diverting cone to first outlet slurry flow ports radially extending from the axis of said nozzle body in a direction substantially normal thereto, each first slurry flow outlet port being in communication with a second radial slurry flow port spaced from the first slurry flow outlet port by an annular space;
• (c) introducing a flow of an atomizing gas to the annular space between said first and second slurry flow ports to intersect and atomize the slurry flowing from said first to said second communicating slurry flow ports in a direction normal to slurry flow;
• and
• (d) maintaining the slurry in the nozzle below reaction temperature in said oxidant flow field by flow of a coolant inwardly through a plurality of some of conduits axially positioned between said second radial slurry flow ports through said manifold and outwardly of other of said conduits axially positioned between said second radial slurry flow ports.