Patent ID: 8197564
Filing Date: 2012-06-12
Classification: C01B,C10J,C10K,Y02E,Y10T

Abstract:
1. A method of assembling a synthesis gas (syngas) cooler for a gasification system, said method comprising: positioning a dip tube within a shell of the syngas cooler, wherein the dip tube includes an upstream end and a downstream end, the dip tube is configured to at least one of: coupling an isolation tube to the dip tube such that the isolation tube is substantially concentrically aligned with, and radially outward of, the dip tube, wherein the isolation tube includes an upstream end and a downstream end, the dip tube downstream end is positioned upstream from the isolation tube downstream end, and wherein the isolation tube is coupled in flow communication with a purge gas source and is configured to at least partially form a dynamic pressure seal; coupling at least one of the isolation tube and the dip tube in fluid communication with a fluid retention chamber; and at least partially filling the fluid retention chamber with fluid, thereby further forming the dynamic pressure seal.