Framework for predicting the fractionation of complex liquid feeds via polymer membranes

Mathias, Ronita; Weber, Dylan J.; Thompson, Kirstie A.; Marshall, Bennett D.; Finn, M. G.; Scott, Joseph K.; Lively, Ryan P.

doi:10.1016/j.memsci.2021.119767

Cited by 27 publications

(21 citation statements)

References 41 publications

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“… Separation coefficients of the nine-component mixture in the SBAD-1 membrane [ 3 ] versus Maxwell–Stefan diffusivities [ 9 ] ( top ) and sorption data from pure component liquids [ 8 ] ( bottom ). The membrane separation was done at a temperature of 22 °C and trans-membrane pressure 40 bar.…”

Section: Figurementioning

confidence: 99%

“…Mathias et al [ 8 ] measured the pure component vapor solubility as well as hydraulic permeability of nine hydrocarbon species ( Table 1 ) in SBAD-1, while Thompson et al [ 3 ] measured the temperature and pressure dependence of the separation of a liquid mixture composed of these nine species. In addition, the membrane separation of a light shale crude oil was also reported [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…As written, Equation (1) is formulated for a flux of units (molecules/area/time). The Maxwell–Stefan diffusivities were extracted from the pure liquid hydraulic permeation data of Mathias et al [ 8 ] via data fitting to Equation (1).…”

Section: Introductionmentioning

confidence: 99%

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Dry Glass Reference Perturbation Theory Predictions of the Temperature and Pressure Dependent Separations of Complex Liquid Mixtures Using SBAD-1 Glassy Polymer Membranes

Marshall

Lively

2022

Membranes

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In this work we apply dry glass reference perturbation theory (DGRPT) within the context of fully mutualized diffusion theory to predict the temperature and pressure dependent separations of complex liquid mixtures using SBAD-1 glassy polymer membranes. We demonstrate that the approach allows for the prediction of the membrane-based separation of complex liquid mixtures over a wide range of temperature and pressure, using only single-component vapor sorption isotherms measured at 25 °C to parameterize the model. The model was then applied to predict the membrane separation of a light shale crude using a structure oriented lumping (SOL) based compositional model of petroleum. It was shown that when DGRPT is applied based on SOL compositions, the combined model allows for the accurate prediction of separation performance based on the trend of both molecular weight and molecular class.

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Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dry Glass Reference Perturbation Theory Predictions of the Temperature and Pressure Dependent Separations of Complex Liquid Mixtures Using SBAD-1 Glassy Polymer Membranes

Marshall

Lively

2022

Membranes

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“…SBAD-1 is a spirocyclic polymer with N -aryl bonds; glassy microporous SBAD-1 membranes were demonstrated to allow for the separation of crude oil on the basis of molecular weight and class. In a subsequent publication, sorption isotherms were measured for several hydrocarbon species in SBAD-1. Like PTMSN and PTMSP, there is no available rubbery data to include in the development of the pure component polymer PC-SAFT parameters.…”

Section: Application Of Dgrptmentioning

confidence: 99%

“…Comparison of DGRPT predictions (curves) and data (symbols) for sorption of hydrocarbons on SBAD-1 at T = 25 °C.…”

Section: Application Of Dgrptmentioning

confidence: 99%

Theoretically Self-Consistent Nonequilibrium Thermodynamics of Glassy Polymer Theory for the Solubility of Vapors and Liquids in Glassy Polymers

Marshall

Mathias

Lively

et al. 2021

Ind. Eng. Chem. Res.

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The nonequilibrium thermodynamics of glassy polymer (NETGP) theory provides a formalism to calculate solubilities of volatile species in glassy polymers using equilibrium free energies. The classic NETGP approach of Sarti and Doghieri assumes that the glassy polymer density of a solvent swollen polymer is known a priori. In the modified approach developed in this work, this density is calculated self-consistently. The self-consistent calculation of the swollen polymer density has profound implications on both the theoretical and practical aspects of the theory. This is accomplished by means of a new class of perturbation theory, which assumes that the sorption of volatile species in a glassy polymer can be treated as a perturbation to a dry polymer reference state. The new approach is then validated against sorption data in several glassy polymers.

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Fractionation of complex aromatic hydrocarbon mixtures using membrane cascades hybridized with distillation

Lee,

Jang,

Marshall

et al. 2025

Chemical Engineering Journal

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Framework for predicting the fractionation of complex liquid feeds via polymer membranes

Cited by 27 publications

References 41 publications

Dry Glass Reference Perturbation Theory Predictions of the Temperature and Pressure Dependent Separations of Complex Liquid Mixtures Using SBAD-1 Glassy Polymer Membranes

Dry Glass Reference Perturbation Theory Predictions of the Temperature and Pressure Dependent Separations of Complex Liquid Mixtures Using SBAD-1 Glassy Polymer Membranes

Theoretically Self-Consistent Nonequilibrium Thermodynamics of Glassy Polymer Theory for the Solubility of Vapors and Liquids in Glassy Polymers

Fractionation of complex aromatic hydrocarbon mixtures using membrane cascades hybridized with distillation

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