| 摘要 |
FIELD: chemistry.SUBSTANCE: feed stream 209 is separated in first pressure swing absorption (PSA1) system into a first fraction 210 including substantially adsorbed components and a second fraction 212 including substantially un-absorbed components, the first fraction 210 including a large portion of CHand COfrom the feed stream, the second fraction 212 including a large portion of Hand CO from the feed stream. A first portion of the second fraction 214 is fed into a second PSA2 system. The first portion of the second fraction is separated in the second PSA2 into a third fraction 213 including substantially adsorbed components and a fourth fraction 217 including substantially un-absorbed components, the third fraction 213 including a large portion of N, CO and COand carbon dioxide included in the first portion, the fourth fraction 217 a large portion of the Hin the first portion. At least a portion of the second portion 215 of the second fraction or the fourth fraction 217 is passed to form a recycled stream during synthesis gas conversion process 208 including a large portion of the Hand CO from the unconverted gas stream. Portions of the first fraction 210 and the third fraction 213 are combined into stream and the second portion of the first fraction 210 is fed as feed gas into the process of producing synthesis gas.EFFECT: invention increases efficiency.20 cl, 4 dwg, 4 tbl |
