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Mostrando ítems 11-20 de 2041
On the specific filtration mechanism of a mesoporous silica membrane, prepared with non-connecting parallel pores
(2005-04-01)
We report the singular filtration properties of an ultrafiltration membrane made with mesoporous silica that exhibits cylindrical pores aligned mostly normal to the support. This membrane supported on tubular commercial ...
On the specific filtration mechanism of a mesoporous silica membrane, prepared with non-connecting parallel pores
(2005-04-01)
We report the singular filtration properties of an ultrafiltration membrane made with mesoporous silica that exhibits cylindrical pores aligned mostly normal to the support. This membrane supported on tubular commercial ...
H2 separation using pressed clinoptilolite and mixed copper-clinoptilolite disk membranes
(John Wiley & Sons Inc, 2017-03)
Disk membranes machined from high-purity natural clinoptilolite rocks demonstrated promising hydrogen separation efficiency. However, these membranes cannot be adequately scaled up. To overcome this and provide process ...
A durable ZSM-5/SS composite tubular membrane for the selective separation of p-xylene from its isomers
(Elsevier Science, 2006-09)
A ZSM-5 membrane synthesized on a stainless steel porous tube was used for the separation of p-xylene from its isomers, m- and o-xylene. The membrane was prepared by secondary growth on the outer surface of the support. ...
Characterization of natural zeolite membranes for H2/CO2 separations by single gas permeation
(American Chemical Society, 2011-11)
Natural zeolite membranes can be used as a model for the development of robust molecular sieve membranes with superior separation characteristics. We describe the characterization of natural clinoptilolite membranes made ...
Membrane-based processes: Optimization of hydrogen separation by minimization of power, membrane area, and cost
(MDPI, 2018-11)
This work deals with the optimization of two-stage membrane systems for H2 separation from off-gases in hydrocarbons processing plants to simultaneously attain high values of both H2 recovery and H2 product purity. First, ...
Separation of zinc ions from an acidic mine drainage using a stirred transfer cell-type emulsion liquid membrane contactor
(2007)
This is a report on the separation and recovery of zinc ions from an acidic mine drainage using a stirred transfer cell-type emulsion liquid membrane contactor. Di(2-ethylhexyl) phosphoric acid was used as a highly selective ...
Mg-Fe layered double hydroxide modified montmorillonite as hydrophilic nanofiller in polysulfone- polyvinylpyrrolidone blend ultrafiltration membranes : separation of oil-water mixture
(2020-07)
Montomorillonite (Mt) and Mg[sbnd]Fe layered double hydroxide modified Montmorillonite (LDH-Mt) were used as nanofillers in polysulfone - Polyvinylpyrrolidone (PSF-PVP) blend ultrafiltration membranes. The nanocomposite ...