TY - JOUR
T1 - Eco-efficient downstream processing of biobutanol by enhanced process intensification and integration
AU - Patraşcu, Iulian
AU - Bildea, Costin Sorin
AU - Kiss, Anton
PY - 2018
Y1 - 2018
N2 - The biobutanol stream obtained after the fermentation step in the ABE process has a low concentration (less than 3 %wt butanol) that leads to high energy usage for conventional downstream separation. To overcome the high downstream processing costs, this study proposes a novel intensified separation process based on a heat pump (vapor recompression) assisted azeotropic dividing-wall column (A-DWC). Pinch analysis and rigorous process simulations have been used for the process synthesis, design and optimization of this novel sustainable process. Remarkably, the energy requirement for butanol separation using heat integration and vapor recompression assisted A-DWC is reduced by 58% from 6.3 to 2.7 MJ/kg butanol.
AB - The biobutanol stream obtained after the fermentation step in the ABE process has a low concentration (less than 3 %wt butanol) that leads to high energy usage for conventional downstream separation. To overcome the high downstream processing costs, this study proposes a novel intensified separation process based on a heat pump (vapor recompression) assisted azeotropic dividing-wall column (A-DWC). Pinch analysis and rigorous process simulations have been used for the process synthesis, design and optimization of this novel sustainable process. Remarkably, the energy requirement for butanol separation using heat integration and vapor recompression assisted A-DWC is reduced by 58% from 6.3 to 2.7 MJ/kg butanol.
U2 - 10.1021/acssuschemeng.8b00320
DO - 10.1021/acssuschemeng.8b00320
M3 - Article
SN - 2168-0485
JO - ACS Sustainable Chemistry & Engineering
JF - ACS Sustainable Chemistry & Engineering
ER -
