High-Flux Thin Film Composite PIM-1 Membranes for Butanol Recovery: Experimental Study and Process Simulations

• DOI: 10.1021/acsami.1c09112
• Publication Date: 2021-09-01T17:38:05Z
• Authors: Jorge Contreras-M...; Sajjad Mohsenpour; Ahmed W. Ameen; Peter M. Budd; Carmen García-Payo; Mohamed Khayet; Patricia Gorgojo
• Keywords: Pervaporation; Polyvinylidene fluoride; Dip-coating; Thin-film composite membrane

Thin film composite (TFC) membranes of the prototypical polymer intrinsic microporosity (PIM-1) have been prepared by dip-coating on a highly porous electrospun polyvinylidene fluoride (PVDF) nanofibrous support. Prior to coating, support was impregnated in non-solvent avoid penetration PIM-1 inside PVDF network. Different non-solvents were considered and results compared with those dry When applied for separation n-butanol/water mixtures pervaporation (PV), developed exhibited very high permeate fluxes, range 16.1–35.4 kg m–2 h–1, an acceptable factor about 8. The PV index (PSI) is around 115, which among highest PSI values that reported so far. Hybrid PV-distillation systems designed modeled Aspen HYSYS using Custom Modeler setting up TFC commercial PDMS as benchmark. butanol recovery cost hybrid conventional stand-alone distillation process used separation, 10% reduction obtained.