Concept

Fractionating column

Related publications (52)

Longevity of granular iron in groundwater treatment processes: corrosion product development

Permeable reactive barriers employing iron as a reactive surface have received extensive attention. A remaining issue, however, relates to their longevity. As an integral part of a long-term column study conducted to examine the influence of inorganic coso ...

2005

Arrested phase separation in a short-ranged attractive colloidal system: A numerical study

Giuseppe Foffi, Francesco Sciortino

We numerically investigate the competition between phase separation and dynamical arrest in a colloidal system interacting via a short-ranged attractive potential. Equilibrium fluid configurations are quenched at two different temperatures below the critic ...

2005

Diffusivity and configurational entropy maxima in short range attractive colloids

Giuseppe Foffi, Francesco Sciortino

We study tagged particle diffusion at large packing fractions, for a model of particles interacting with a generalized Lennard-Jones 2n-n potential, with large n. The resulting short range potential mimics interactions in colloidal systems. In agreement wi ...

2005

Aging in short-ranged attractive colloids: A numerical study

Giuseppe Foffi, Francesco Sciortino

The aging dynamics in a model for dense simple liquids, in which particles interact through a hard-core repulsion complemented by a short-ranged attractive potential, of the kind found in colloidal suspensions, was studied. Kinetically arrested disordered ...

2004

Gases, liquids and crystals in granular segregation

Pedro Miguel Nunes Pereira de Almeida Reis

We report the results of an experimental investigation of segregation in a binary mixture of dry particles subjected to horizontal oscillatory excitation. The thin layer of particles was driven by the stick-slip frictional interaction with the surface of a ...

EDP Sciences2004

Mixing Effects for the Structural Relaxation in Binary Hard-Sphere Liquids

Giuseppe Foffi, Francesco Sciortino

We report extensive molecular-dynamics-simulation results for binary mixtures of hard spheres for different size disparities and different mixing percentages, for packing fractions up to 0.605, and over a characteristic time interval spanning up to 5 order ...

2003

Structural Arrest in Dense Star-Polymer Solutions

Giuseppe Foffi, Francesco Sciortino

The dynamics of star polymers is investigated via extensive molecular and Brownian dynamics simulations for a large range of functionality f and packing fraction

\eta

. The calculated isodiffusivity curves display both minima and maxima as a function of $ ...

2003

Investigation of particle-based and monolithic columns for cation exchange protein displacement chromatography using poly(diallyl-dimethylammonium chloride) as displacer

Jutta Christine Wandrey

The overall topic of the investigation was the sepn. of basic proteins by cation exchange displacement chromatog. For this purpose two principal column morphologies were compared for the sepn. of RNase A and a-chymotrypsinogen, two proteins found in the bo ...

2003

Bubble columns staged with structured fibrous catalytic layers: Residence time distribution and mass transfer

Albert Renken, Lioubov Kiwi, Volker Höller

A new reactor concept for catalyzed three-phase reactions based on the use of woven fibrous materials for bubble columns is suggested. In comparison to conventional multistage bubble columns, the trays are made from woven fibrous catalytic layers. The hydr ...

2001

Apparatus for producing gas mixture from hexamethyldisiloxane and carrier gas, e.g. oxygen, as process gas comprises filling packing arranged in a vertical column which can be cooled

Patrik Willi Hoffmann

The invention relates to a device for producing a gas mixture consisting of HMDSO and oxygen, whereby process gas is produced. In order to be able to continuously produce a large volume of process gas using such a device and to be able to withdraw the same ...

2001

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Structural Arrest in Dense Star-Polymer Solutions

Giuseppe Foffi, Francesco Sciortino

The dynamics of star polymers is investigated via extensive molecular and Brownian dynamics simulations for a large range of functionality f and packing fraction

\eta

. The calculated isodiffusivity curves display both minima and maxima as a function of $ ...

2003