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The present application thus provides a gasifier cooling system for cooling a flow of hot syngas from a gasifier. The gasifier cooling system may include a radiant syngas cooler, a quench chamber, and a convective syngas cooler such that the flow of syngas flows through the quench chamber or the con

The present application thus provides a gasifier cooling system for cooling a flow of hot syngas from a gasifier. The gasifier cooling system may include a radiant syngas cooler, a quench chamber, and a convective syngas cooler such that the flow of syngas flows through the quench chamber or the convective syngas cooler.

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1. A gasifier cooling system for cooling a flow of hot syngas from a gasifier, comprising: a radiant syngas cooler configured to receive the flow of hot syngas from the gasifier;a quench chamber in fluid communication with the radiant syngas cooler; anda convective syngas cooler in fluid communicati

1. A gasifier cooling system for cooling a flow of hot syngas from a gasifier, comprising: a radiant syngas cooler configured to receive the flow of hot syngas from the gasifier;a quench chamber in fluid communication with the radiant syngas cooler; anda convective syngas cooler in fluid communication with the radiant syngas cooler such that the flow of syngas flows through the convective syngas cooler, wherein the convective syngas cooler is positioned at a decline with respect to the radiant syngas cooler and is configured to cool hot syngas with a cooling medium. 2. The gasifier cooling system of claim 1, further comprising a plurality of convective syngas coolers. 3. The gasifier cooling system of claim 1, wherein the convective syngas cooler is in communication with the radiant syngas cooler via a convective syngas cooler conduit. 4. The gasifier cooling system of claim 1, wherein the radiant syngas cooler comprises a heat transfer section with a plurality of platens therein. 5. The gasifier cooling system of claim 4, wherein the radiant syngas cooler comprises a converging cone positioned underneath the plurality of platens. 6. The gasifier cooling system of claim 5, wherein the radiant syngas cooler comprises a convection outlet positioned about the converging cone. 7. The gasifier cooling system of claim 5, wherein the radiant syngas cooler comprises a header positioned about the converging cone. 8. The gasifier cooling system of claim 1, wherein the radiant syngas cooler comprises a transition section with a transition converging cone. 9. The gasifier cooling system of claim 8, wherein the radiant syngas cooler comprises a quench ring positioned about the transition converging cone. 10. The gasifier cooling system of claim 1, wherein the quench chamber comprises a dip tube, a draft tube, and a water bath. 11. The gasifier cooling system of claim 1, wherein the quench chamber comprises a quench outlet. 12. The gasifier cooling system of claim 1, wherein the quench outlet is in communication with a quench conduit. 13. The gasifier cooling system of claim 1, further comprising a slag discharge. 14. A gasifier cooling system for cooling a flow of hot syngas from a gasifier, comprising: a radiant syngas cooler configured to receive the flow of hot syngas from the gasifier;a quench chamber positioned about an in fluid communication with the radiant syngas cooler;one or more convective syngas coolers in fluid communication with the radiant syngas cooler, each positioned at a decline with respect to the radiant syngas cooler, the one or more convective syngas coolers configured to cool hot syngas with a cooling medium; andone or more convective syngas cooler conduits connecting the radiant syngas cooler and the one or more convective syngas coolers such that the flow of syngas flows through the quench chamber or the one or more convective syngas coolers. 15. The gasifier cooling system of claim 14, wherein the radiant syngas cooler comprises one or more convection outlets in communication with the one or more convective syngas cooler conduits. 16. The gasifier cooling system of claim 14, wherein the quench chamber comprises a quench outlet. 17. The gasifier cooling system of claim 16, wherein the quench outlet is in communication with a quench conduit.