Further optimization of a parallel double-effect organosilicon distillation scheme through exergy analysis

作者: Jinsheng Sun , Leilei Dai , Ming Shi , Hong Gao , Xijia Cao

DOI: 10.1016/J.ENERGY.2014.03.027

关键词: Work (thermodynamics)ThermodynamicsExergyContext (language use)MethyltrichlorosilaneEnergy conservationProcess integrationHeat pumpProcess engineeringChemistryDistillation

摘要: In our previous work, a significant improvement in organosilicon monomer distillation using parallel double-effect heat integration between heavies removal column and six other columns, as well methyltrichlorosilane dimethylchlorosilane reduced the total exergy loss of currently running counterpart by 40.41%. Further research regarding this optimized scheme demonstrated that it was necessary to reduce higher operating pressure column, which is required for columns. Therefore, contribution, challenger presented with pumps introduced separately from originally heat-coupled columns above-mentioned scheme, prototype work. Both schemes are simulated same purity requirements used industrial units. The thermodynamic properties simulation calculate energy consumption two schemes. results show pump option further reduces flowsheet 27.35% 10.98% relative scheme. These indicate superior context energy-savings during distillation.

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