Journal ArticleDOI
Ternary gas separation using two different membranes
A. Sengupta,Kamalesh K. Sirkar +1 more
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TLDR
In this paper, a ternary gas mixture separation can be achieved using two different membranes inversely selective to two different fast components of the feed using cellulose acetate hollow fibers and silicone rubber capillaries for He-CO2-N2 mixtures.About:
This article is published in Journal of Membrane Science.The article was published on 1988-10-01. It has received 17 citations till now. The article focuses on the topics: Gas separation & Membrane.read more
Citations
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Journal ArticleDOI
Simulation of multicomponent gas separation in a hollow fiber membrane by orthogonal collocation — hydrogen recovery from refinery gases
TL;DR: In this paper, the appropriate model equations are solved by orthogonal collocation to approximate differential equations, and to solve the resulting system of non-linear algebraic equations by the Brown method.
Journal ArticleDOI
Models and analyses of membrane gas permeators
TL;DR: In this paper, a review of transport models and parametric studies of membrane gas permeators for idealized flow patterns, e.g. plug and mixed, is presented. And the conditions under which nonidealities in flow patterns like longitudinal mixing, boundary layer and radial mixing effects exist are identified and their effects on the validity of the models are discussed.
Book ChapterDOI
Design of Gas Permeation Systems
TL;DR: In Chapter 2 it was stated that membranes can be considered to have four structural levels and that three additional organizational levels exist between the membrane itself and the final membrane process.
Journal ArticleDOI
Separation of Hydrogen from Carbon Monoxide Using a Hollow Fiber Polyimide Membrane: Experimental and Simulation
TL;DR: In this article, a polyimide hollow fiber membrane module was used for hydrogen separation and measured membrane permeances for hydrogen and carbon monoxide were about 70-100 GPU (gas permeation units) and 3-5.5 GPU (GPU), respectively.
Journal ArticleDOI
Simulation of binary gas separation with asymmetric hollow fibre membranes and case studies of air separation
TL;DR: In this article, a mathematical model for high-flux asymmetric hollow fiber membrane was developed considering the effect of permeate pressure build-up inside the fiber bore, which constitute a boundary value problem.
References
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Journal ArticleDOI
Gas separation by high‐flux, asymmetric hollow‐fiber membrane
TL;DR: A mathematical model of multicomponent permeation systems with high-flux, asymmetric hollow-fiber membranes is presented in this paper, which takes into account the permeate pressure variation inside the fiber.
Journal ArticleDOI
Gas separation by permeators with high-flux asymmetric membranes
TL;DR: In this paper, a calculation method for predicting the gas separation performance of a permeator with asymmetric membrane is presented, which takes into account the permeate pressure drop and is applicable to both hollow-fiber and spiral-wound modules.
Journal ArticleDOI
Recycle and multimembrane permeators for gas separations
TL;DR: In this article, the authors discuss the development and operation of recycle and multimembrane permeator systems and summarizes the results of parametric calculations, showing that the extent of gas separation achievable in a permeator module can be substantially increased by recycling a fraction of the permeated stream, and using more than one type of membrane for a given separation process.
Journal ArticleDOI
Asymmetric cellulose acetate hollow fibers: studies in gas permeation
Journal ArticleDOI
Ternary gas mixture separation in two‐membrane permeators
A. Sengupta,Kamalesh K. Sirkar +1 more
TL;DR: In this article, a hollow-fiber permeator that simultaneously houses two different types of membranes, cellulose acetate and silicone rubber, was investigated, and the two membranes have reverse selectivities with respect to He and CO2.