US 12,264,067 B2
Gasification of high-ash feedstock
Jacob Shelley, Amsterdam (NL); Joachim Wolff, Lutherstadt Wittenberg (DE); Thomas Von Kossak, Reichshof (DE); Eduardo Ribeiro, Leiden (NL); Nan Liu, The Hague (NL); and Steffen Jancker, Steinhagen (DE)
Assigned to AIR PRODUCTS AND CHEMICALS, INC., Allentown, PA (US)
Filed by Air Products and Chemicals, Inc., Allentown, PA (US)
Filed on Nov. 19, 2021, as Appl. No. 17/530,515.
Prior Publication US 2023/0159328 A1, May 25, 2023
Int. Cl. C10J 3/84 (2006.01); C01B 3/36 (2006.01); C01B 3/52 (2006.01); C10J 3/72 (2006.01)
CPC C01B 3/363 (2013.01) [C01B 3/52 (2013.01); C10J 3/84 (2013.01); C01B 2203/049 (2013.01); C01B 2203/0877 (2013.01); C01B 2203/1235 (2013.01); C01B 2203/148 (2013.01); C10J 3/723 (2013.01); C10J 2300/0973 (2013.01); C10J 2300/169 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for the gasification of a residue stream comprising liquid hydrocarbons and metal-rich solid particles, said process comprising:
reacting the residue stream with an oxidant stream in a gasifier to produce a hot syngas stream comprising carbon monoxide, hydrogen, and soot;
contacting the hot syngas stream with a quench water stream to produce a quenched syngas stream and a soot-containing quench water stream;
washing the quenched syngas stream with a scrubber water stream to produce a raw syngas stream and a soot water stream;
separating the soot-containing quench water stream and at least a portion of the soot water stream to produce one or more overhead vapor streams and a concentrated soot water stream;
filtering the concentrated soot water stream to produce a solid filter cake and a liquid filtrate stream;
dividing at least a portion of the liquid filtrate stream to form a heat exchange filtrate fraction;
transferring heat to the heat exchange filtrate fraction from one or more of the following streams: the one or more overhead vapor streams and the concentrated soot water stream; and
combining the heat exchange filtrate fraction with at least a portion of the stripped water stream,
wherein the quench water stream comprises at least a portion of one or more of the following: the soot-containing quench water stream, a stream derived from the soot-containing quench water stream, the soot water stream, and a stream derived from the soot water stream, and
wherein the raw syngas comprises between 40% and 50% water by volume.