Publications de Albert Renken | EPFL Graph Search

A novel compact reactor for three-phase hydrogenations

Albert Renken, Lioubov Kiwi, Madhvanand Namadeo Kashid, Martin Grasemann

A novel reactor based on a bubble column staged by structured catalytic layers with integrated cross flow micro-heat-exchangers (HEX) was designed and tested in the solvent free hydrogenation of 2-methyl-3-butyn-2-ol (MBY) aiming on process intensification ...

Elsevier2010

CFD modelling of liquid–liquid multiphase microstructured reactor: Slug flow generation

Albert Renken, Lioubov Kiwi, Madhvanand Namadeo Kashid

Microreactor technology, an important method of process intensification, offers numerous potential benefits for the process industries. Fluid–fluid reactions with mass transfer limitations have already been advantageously carried out in small-scale geometr ...

Elsevier2010

Microstructured Catalytic Reactors

Albert Renken, Lioubov Kiwi

This chapter is a summary of recent advances in microreactors, which have become increasingly important in process development and chemical research. Microstructured chemical reactors are characterized by dimensions in the submillimeter range and, thus. su ...

2010

N2O Decomposition over Fe-ZSM-5 Studied by Transient Techniques

Albert Renken, Lioubov Kiwi, Bryan Bromley, Petra Prechtl

N2O decomposition to gaseous N-2 and O-2 catalyzed by a commercial Fe-ZSM-5 has been studied by different transient techniques: (i) via the transient response methods at ambient pressure, (ii) via the temporal analysis of products (TAP) reactor under vacuu ...

2009

Kinetics of the solvent-free hydrogenation of 2-methyl-3-butyn-2-ol over a structured Pd-based catalyst

Albert Renken, Lioubov Kiwi, Rocio Micaela Crespo Quesada, Martin Grasemann

The solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) was studied over a Pd/ZnO structured catalyst and compared to its behavior in water-assisted conditions. The catalytic behavior was correlated with the s ...

2009

Micro-Structured Reactors and Catalysts for the Intensification of Chemical Processes

Albert Renken

Process intensification is the term which describes an innovative design approach in chemical engineering aiming on a significant increase of the specific performance of chemical reactors and plants miniaturization, of at least an order of magnitude. In ad ...

American Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa2009

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

Albert Renken, Lioubov Kiwi, Martin Grasemann

Systematic studies of mass transfer interactions with intrinsic reaction kinetics were performed for the threephase selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) over a modified Pd/CaC

{O}_{3}

catalyst under solvent ...

2008

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

Albert Renken, Lioubov Kiwi, Bryan Bromley

A novel “sandwich” microreactor designed as a thin (∼ 300

\mu

m) porous plate of sintered metal fibers (SMF), sandwiched between metallic plates is reported. The SMF surface was coated by Fe-ZSM-5 thin film (< 2

\mu

m) rendering a catalyst highly active ...

2008

Novel design of a microstructured reactor allowing fast temperature oscillations

Albert Renken, Lioubov Kiwi, Martin Luther

Two types of stainless steel microstructured reactors for catalytic gas-phase reactions have been developed and characterized with respect to their thermal behaviour under non-stationary temperature conditions. One of the reactors used (FTC-I) allowed peri ...

2008

Forced periodic temperature cycling of chemical reactions in microstructure devices

Albert Renken, Lioubov Kiwi, Martin Luther

In this publication, several stainless steel microstructure reactors specially designed to obtain rapid and periodic temperature changes are presented. Different microstructure reactor designs have been manufactured and tested for their thermal behaviour a ...

2008

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A novel compact reactor for three-phase hydrogenations

CFD modelling of liquid–liquid multiphase microstructured reactor: Slug flow generation

Microstructured Catalytic Reactors

N2O Decomposition over Fe-ZSM-5 Studied by Transient Techniques

Kinetics of the solvent-free hydrogenation of 2-methyl-3-butyn-2-ol over a structured Pd-based catalyst

Micro-Structured Reactors and Catalysts for the Intensification of Chemical Processes

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

Novel design of a microstructured reactor allowing fast temperature oscillations

Forced periodic temperature cycling of chemical reactions in microstructure devices

Forced periodic temperature cycling of chemical reactions in microstructure devices

Novel design of a microstructured reactor allowing fast temperature oscillations

Micro-Structured Reactors and Catalysts for the Intensification of Chemical Processes

A novel compact reactor for three-phase hydrogenations

Kinetics of the solvent-free hydrogenation of 2-methyl-3-butyn-2-ol over a structured Pd-based catalyst

CFD modelling of liquid–liquid multiphase microstructured reactor: Slug flow generation

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

N2O Decomposition over Fe-ZSM-5 Studied by Transient Techniques

Microstructured Catalytic Reactors

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring