000256217 001__ 256217
000256217 005__ 20181203025020.0
000256217 0247_ $$2doi$$a10.1016/j.energy.2017.09.075
000256217 02470 $$2DOI$$a10.1016/j.energy.2017.09.075
000256217 037__ $$aARTICLE
000256217 245__ $$aThermo-economic and environmental comparison of supercritical water and enzymatic hydrolysis of sugarcane bagasse in a biorefinery concept
000256217 260__ $$c2017
000256217 269__ $$a2017
000256217 336__ $$aJournal Articles
000256217 520__ $$aIn this study, we discuss the difference regarding thermo-economic and environmental (water intake) aspects between two methods of biomass hydrolysis. A thermo-economic model was developed using Aspen Plus® and MATLAB software in order to analyze the energy efficiency, as well as, the economic impact of the hydrolysis process integrated into a traditional ethanol production process from sugarcane. The study aimed at comparing the enzymatic route for sugarcane bagasse ethanol production with the supercritical water-based one. The use of supercritical water hydrolysis (SCWH) process showed promising results, being the process energetically self-sufficient when considering pumping of liquid streams with biomass content of 20% and the decompression of the steam separated after SCWH with a turbine, in order to produce electricity. In terms of economics, the biorefinery concept using enzymatic route presented the highest production costs due to the higher total investment cost and the cost for the raw materials, which is 14% higher than the biorefinery with SCWH, giving a payback time for the investments of 7.5 years, meanwhile 6.2 for the SCWH route. Also better results were obtained for water intake for the SCWH option, being lower than the maximum permitted for a new investment on the Brazilian sugarcane sector.
000256217 6531_ $$aBiomass
000256217 6531_ $$aProcess simulation
000256217 6531_ $$aHeat integration
000256217 6531_ $$aSecond generation ethanol
000256217 6531_ $$aBioethanol
000256217 6531_ $$aBiofuel
000256217 700__ $$aAlbarelli, Juliana Q.
000256217 700__ $$aSantos, Diego T.
000256217 700__ $$aEnsinas, Adriano V.
000256217 700__ $$aMaréchal, François
000256217 700__ $$aMato, Fidel A.
000256217 700__ $$aCocero, María J.
000256217 700__ $$aMeireles, M. Angela A.
000256217 773__ $$q139-148$$j141$$tEnergy
000256217 8560_ $$fsimon.marechal@epfl.ch
000256217 909C0 $$msylvie.dubuis@epfl.ch$$mfrancois.marechal@epfl.ch$$0252481$$xU12691$$pIPESE$$msimon.marechal@epfl.ch
000256217 909CO $$pSTI$$particle$$ooai:infoscience.epfl.ch:256217
000256217 960__ $$asimon.marechal@epfl.ch
000256217 961__ $$aalain.borel@epfl.ch
000256217 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000256217 980__ $$aARTICLE
000256217 981__ $$aoverwrite