Concept

Surgénération

Publications associées (415)

Microstructure of irradiated ferritic/martensitic steels in relation to mechanical properties

A review of the microstructure of irradiated reduced activation ferritic/martensitic steels is presented, with a focus on F82H. Because of its resistance to irradiation induced hardening, swelling and low irradiation induced temperature shift in the ductil ...

2002

Improved gamma-heating calculational methods for fast reactors and their validation for plutonium-burning configurations

Rakesh Chawla, Gérald Rimpault

A new calculational scheme has been developed for the accurate assessment of gamma heating in fast reactors, its special feature being the determination of the gamma source distribution that is formulated in a near-to-exact manner. The improved methodology ...

American Nuclear Society2001

Hydrogen production by catalytic cracking of methane over nickel gauze under periodic reactor operation

Albert Renken, Lioubov Kiwi

The catalytic cracking of methane over nickel gauze is proposed as an attractive alternative for the prodn. of CO-free hydrogen. The catalyst deactivates due to intensive coke deposition. Therefore, the reactor was operated periodically with the reaction f ...

Elsevier2001

Verification of the membrane reactor concept for the methanol synthesis

Rudolf Paul Wilhelm Jozef Struis

The experimentally observed rise in the single pass methanol production with CO2 and H-2 (T = 200 degreesC, P = 4.3 bar) by in situ product removal over a perm-selective Nafion (R) membrane is verified by model simulations. For this purpose, software was d ...

2001

Microchannel reactors for fast periodic operation: the catalytic dehydrogenation of isopropanol

Albert Renken, André Rouge

A microchannel reactor specially designed for periodic operation and a process to deposit a catalyst, g-alumina, inside the reactor channels were developed. The hydrodynamics of the reactor was characterised. Although the flow in the microchannels is lamin ...

2001

Reduction of nitrite-ions in water over Pd-supported on structured fibrous materials

Albert Renken, Lioubov Kiwi, Volker Höller

Catalytic hydrogenation of NO2- in water to N2 over Pd-supported on different woven fibrous materials was studied. Low porosity C fiber, low porosity D-type glass fiber, and composite (glass covered by g-Al2O3) fiber were used. Pd dispersion was compared f ...

2001

Inert matrix fuel for the utilisation of plutonium

Manuel Alexandre Pouchon

Utilising fuel resources responsibly, reducing waste volume and emissions as well as conflict potentials within the international community (non-proliferation, energy demand) are among the principles for the judgment of sustainable development. Utilising a ...

Elsevier2001

Electrochemical treatment of wastewaters containing organic pollutants on boron-doped diamond electrodes: Prediction of specific energy consumption and required electrode area

Christos Comninellis, Pierre-Alain Michaud, Marco Panizza

A theor. anal. is presented for the prediction of the specific energy consumption and the required electrode surface for the electrochem. combustion of org. compds. on synthetic B-doped diamond thin film electrodes. The model is formulated for a perfect mi ...

2001

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

Structured multiphase reactors based on fibrous catalysts: nitrite hydrogenation as a case study

Albert Renken, Lioubov Kiwi, Volker Höller

A reactor concept designed as a bubble column staged with fibrous catalytic layers is tested on pilot-scale for the redn. of nitrite to N by H. CO2 is used to neutralize the hydroxide ions produced during hydrogenation of nitrite. The effective reaction ra ...

Elsevier2001

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