Syngas cooler with vertical surface superheater

A syngas cooler apparatus which comprises:

• an elongated generally cylindrical pressure vessel, said pressure vessel having an axial extremity that is a top end during normal operation of said cooler and an axial extremity that is a bottom end during normal operation of said cooler,
• a support member extending laterally within said pressure vessel proximate to said top end;
• front, back, and two side walls defining at least one flow channel in said pressure vessel;
• said pressure vessel having an inlet and an outlet communicating with said flow channel;
• and
• a pendant heat exchanger surface comprising a plurality of loops therein, each of said loops being formed from tubing, the major portion of the entire axial extent of said tubing in any given loop, being rectilinear axial sections that are disposed with the axes thereof substantially in a vertical plane during normal operation, each of said rectilinear axial sections extending through the major part of the axial extent of said pressure vessel, said pendant heat exchanger surface being disposed in said flow channel intermediate said inlet and said outlet, said pendant heat exchanger surface being supported solely from said laterally extending support member,
• said cooler including a header at the top thereof, a division wall separating said flow channel into first and second portions, the direction of fluid flow in said first portion being opposite to the direction of fluid flow in said second portion, the direction of fluid flow in said first portion being downward,
• each of said plurality of loops each including first and second U-shaped bends defining first and second cavities.