SciELO - Scientific Electronic Library Online

 
vol.84 número200Towards an automatic detection system of signals at cotopaxi volcanoA comparison of trajectory granular based algorithms for the location-routing problem with heterogeneous fleet (LRPH) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

LAUZURIQUE-GUERRA, Yeney; ZUMALACARREGUI-DE CARDENAS, Lourdes; PEREZ-ONES, Osney  e  MOLINA-RIVERO, Geli. Evaluation of ethanol dehydration techniques applying simulation. Dyna rev.fac.nac.minas [online]. 2017, vol.84, n.200, pp.185-192. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v84n200.54230.

Three ethanol dehydration techniques were studied: azeotropic distillation with benzene, pervaporation and adsorption with molecular sieves. Each technique was simulated with HYSYS v3.2 process simulator. In order to compare, the same ethanol molar flow was established for ethanol-water mixture (216.5 kmol/h). Ethanol molar composition was higher than 99.7% for all technologies. Slightly lower composition was obtained for the extractive distillation. The influence of operating parameters on the efficiency of simulated technologies was determined by analyzing three case studies. Temperature, molar flows of liquid and vapor and composition profiles through the columns were analyzed for each process. According to economic evaluation techniques, all the alternatives are economically advantageous because of net profits. The greatest benefits are obtained for adsorption with molecular sieves because of its highest relative net present value.

Palavras-chave : dehydration; anhydrous ethanol, simulation.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )