摘要
The synthesis of a distillation system including no-sharp separations was studied with emphasis on the coding and flowsheet multiformity caused by no-sharp separation.The same streams composed of the same components appeared in the flowsheet,and had three kinds of relationships,i.e.,independent,united,and thermally-coupled.In the genetic programming coding,an integer array was used to denote the relationships for these same streams so as to describe the distillation flowsheet with no-sharp separations.There was an equivalent simple column flowsheet for a complex flowsheet and the maximum number of simple columns(MNSC) in one flowsheet was used to describe the scale of problem.The relationship between MNSC and middle component number(MCN) that was between two key components was presented.As MCN was 2,MNSC was 4N-9,and it meant that the best result would be searched in the space that could include 4N-9 columns instead of N-1.The searching scope was enlarged and better results could be obtained in comparison with only considering sharp separations.
The synthesis of a distillation system including no-sharp separations was studied with emphasis on the coding and flowsheet multiformity caused by no-sharp separation. The same streams composed of the same components appeared in the flowsheet, and had three kinds of relationships, i.e. , independent, united, and thermally-coupled. In the genetic programming coding, an integer array was used to denote the relationships for these same streams so as to describe the distillation flowsheet with no-sharp separations. There was an equivalent simple column flowsheet for a complex flowsheet and the maximum number of simple columns （MNSC） in one flowsheet was used to describe the scale of problem, The relationship between MNSC and middle component number （MCN） that was between two key components was presented. As MCN was 2, MNSC was 4N- 9, and it meant that the best result would be searched in the space that could include 4N-9 columns instead of N-1. The searching scope was enlarged and better results could be obtained in comparison with only considering sharp separations.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2008年第2期415-419,共5页
CIESC Journal
基金
国家重点基础研究发展计划项目(20000263)~~
关键词
非清晰塔
精馏
热集成
综合
no-sharp separation
distillation
heat integration
synthesis
