| 摘要 |
<p>A process comprises (a) introducing a raw gas stream into a sorption zone, wherein said raw gas stream comprises in the range of from about 10 to about 75 volume percent carbon monoxide (CO), in the range of from about 8 to about 50 volume percent hydrogen (H 2 ), in the range of from about 4 to about 40 volume percent water (H 2 O), and in the range of from about 0.001 to about 5 volume percent hydrogen sulfide (H 2 S), (b) contacting at least a portion of said raw gas stream with an initial sorbent in said sorption zone to thereby produce a product gas stream and a sulfur-laden sorbent, wherein said initial sorbent comprises Zn and a promoter metal, (c) drying at least a portion of said sulfur-laden sorbent to thereby produce a dried sulfur-laden sorbent; and (d) regenerating at least a portion of said dried sulfur-laden sorbent in a regeneration zone under regeneration conditions to thereby produce a regenerated sorbent and an off-gas stream, wherein said regenerated sorbent comprises less than about 20 weight percent of sorbent-damaging compounds formed during said regenerating of step (d).</p> |
