Fixed bed dynamics of single and multicomponent adsorption of pentane and hexane isomers in ZIF-8

Hexane isomers separation on an isoreticular series of microporous Zr carboxylate metal organic frameworks

“…A more detailed description about the experimental setup and procedure has already been reported elsewhere. 41,42 For the whole adsorption study, all paraffin isomers (nC6/2MP/3MP/23DMB/22DMB) were of analytical grade and supplied by Sigma Aldrich with 99+ % purity.…”

“…[31][32][33][34][35] Regarding the separation of hexane isomers, several MOFs have been considered to date. [36][37][38][39][40][41][42][43][44][45][46] For instance ZIF-8, featuring a sodalite zeolite type structure, can completely remove nhexane from branched isomers with higher adsorption capacity than zeolite 5A. [40][41][42] Fe 2 (BDP) 3 , consisting in a framework of onedimensional triangular channels that can accommodate all hexane isomers, separates them by the degree of branching.…”

“…[36][37][38][39][40][41][42][43][44][45][46] For instance ZIF-8, featuring a sodalite zeolite type structure, can completely remove nhexane from branched isomers with higher adsorption capacity than zeolite 5A. [40][41][42] Fe 2 (BDP) 3 , consisting in a framework of onedimensional triangular channels that can accommodate all hexane isomers, separates them by the degree of branching. 43 Mendes et al 44 45 and the calcium-based MOF Ca(H 2tcpb), which exhibits a unique molecular exclusion behavior of di-branched hexanes enabling the separation of hexane isomers into the pure form of each isomerate.…”

Kinetic Molecular Sieving of Cyclopentane/Neohexane Mixtures by the MFI Zeolite with Intersecting 10-Ring Channels

“…Neohexane or 2,2-dimethylbutane (22DMB) is a major contaminant in cyclopentane. It is also a high-quality blending component for clean gasoline with high octane number. , The composition of cyclopentane-neohexane from naphtha varies widely in volume from 92/8 to 29/71 . The discrimination of these two compounds is a great challenge because they not only exhibit extremely close boiling points of only 0.4 K difference but also form azeotropic components. , Considering the impossibility of splitting neohexane from cyclopentane by simple distillation operations, azeotropic and extractive distillations ,− have been designed to produce cyclopentane of higher purities.…”

“…It is also a high-quality blending component for clean gasoline with high octane number. 8,9 The composition of cyclopentane-neohexane from naphtha varies widely in volume from 92/8 to 29/71. 5 The discrimination of these two compounds is a great challenge because they not only exhibit extremely close boiling points of only 0.4 K difference but also form azeotropic components.…”