Process simulation of organic liquid products fractionation in countercurrent multistage columns using CO2 as solvent with Aspen-Hysys
| Autor: | M.E. Araújo, Nélio Machado, C.C. Ferreira, Eduardo Gama Ortiz Menezes, Everton Carvalho Costa, A.A. Mâncio, A.L.B. dos Santos, H. da Silva Vargens, Vânia Maria Borges Cunha, M.P. da Silva |
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| Rok vydání: | 2018 |
| Předmět: |
Stripping (chemistry)
Countercurrent exchange Chemistry General Chemical Engineering Analytical chemistry 02 engineering and technology Fractionation 021001 nanoscience & nanotechnology Condensed Matter Physics Fluid catalytic cracking Solvent 020401 chemical engineering Yield (chemistry) Acentric factor 0204 chemical engineering Physical and Theoretical Chemistry 0210 nano-technology Oxygenate |
| Zdroj: | The Journal of Supercritical Fluids. 140:101-115 |
| ISSN: | 0896-8446 |
| Popis: | Fractionation of liquid phase products (OLP), obtained by thermal catalytic cracking of palm oil, simulated in multistage countercurrent absorber/stripping columns using SC-CO2 as solvent with Aspen-Hysys, at 333 K, 140 and 180 bar, and (S/F) = 12, 15, 17, 25, 30, 38. RK-Aspen EOS applied to correlate equilibrium data of binary systems (OLP)-i/CO2. Composition of OLP used to predict thermophysical properties and acentric factor of OLP compounds by group-contribution methods. The effect of pressure and (S/F) on process performance evaluated by computing the yield and recoveries of hydrocarbons, olefins, oxygenates, carboxylic acids. The regressions show that RK-Aspen EOS describe well phase equilibrium data, showing AAD between 0.8% and 1.25% and 0.01%– 0.66% for the liquid and gaseous phases. The best deacidifying conditions obtained at 333 K, 140 bar, and (S/F) = 17. Simulations show that SC-CO2 was able to deacidify OLP and to obtain fractions with lower olefins content. |
| Databáze: | OpenAIRE |
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