Zobrazeno 1 - 10
of 78
pro vyhledávání: '"E.K. Poels"'
Publikováno v:
Journal of Materials Science. 38:173-182
Dielectric heating of materials may have distinct advantages over conventional heating in view of the fact that it is a bulk heating technique, and does not rely on conduction or convection, the driving force of which are temperature gradients. Diele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d146fae194dbe011f1cda8313ac3947e
https://doi.org/10.1023/a:1021138505264
https://doi.org/10.1023/a:1021138505264
Publikováno v:
Journal of the American Oil Chemists' Society, 79(1), 85-91. Springer Verlag
The liquid‐phase hydrogenolysis of fatty esters to fatty alcohols is an important step in the industrial manufacture of surfactants and detergents. High operating pressures are necessary, due to the low solubility of hydrogen in fatty esters feeds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a86102dc817964fc75a51aff26e70020
https://hdl.handle.net/11245/1.200368
https://hdl.handle.net/11245/1.200368
Publikováno v:
Chemical Engineering Science, 57(22-23), 4845-4853. Elsevier
The presence of (catalyst) particles in slurry columns may induce significant changes in the overall column hydrodynamics. This is commonly attributed to changes in the apparent viscosity and density of the slurry phase as a result of the presence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fe11eb1014f4bda5af7e34d9c855c26
https://doi.org/10.1016/S0009-2509(02)00281-6
https://doi.org/10.1016/S0009-2509(02)00281-6
Publikováno v:
Journal of Catalysis, 207(1), 1-9. Academic Press Inc.
In recent years quite some research has been carried out in microwave-assisted catalysis and in microwave-assisted catalyst synthesis. Presently we have tested the use of dielectric fields for in situ reactivation of passivated Ni-on-alumina using di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d61740e8f1fe36966bba096c7ebbe611
https://dare.uva.nl/personal/pure/en/publications/in-situ-reactivation-of-passivated-nionalumina-catalysts-for-toluene-hydrogenation-in-a-dielectric-field(7f2c80e7-d00e-46dd-9a30-0052cc28cb85).html
https://dare.uva.nl/personal/pure/en/publications/in-situ-reactivation-of-passivated-nionalumina-catalysts-for-toluene-hydrogenation-in-a-dielectric-field(7f2c80e7-d00e-46dd-9a30-0052cc28cb85).html
Publikováno v:
Journal of the American Oil Chemists' Society, 79(1), 75-83. Springer Verlag
Conventional liquid‐phase fatty ester hydrogenolysis processes are necessarily operated at high pressures owing to the limited solubility of hydrogen in the reaction medium. In a solvent‐based process this problem can be overcome, but recycling a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e29cb2817e27036b6d194324602c15a8
https://doi.org/10.1007/s11746-002-0438-1
https://doi.org/10.1007/s11746-002-0438-1
Publikováno v:
The Journal of Physical Chemistry B. 105:7928-7937
Preparation of Cu/ZnO catalysts is discussed in which mechanochemical reactions are involved. These reactions include oxidation of copper and copper oxides during milling in the presence of oxygen, reduction under vacuum, and formation of carbonates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f670e0a7ef3772e1769386a630d2737
https://doi.org/10.1021/jp004394s
https://doi.org/10.1021/jp004394s
Publikováno v:
Materials Science & Engineering. A, Structural Materials, Properties, Microstructure and Processing, 304-306, 418-423. Elsevier
When zinc oxide is milled under vacuum or in the presence of oxygen, creation of various types of defects results in an increased amorphous fraction, as well as higher surface area. Mechanochemical reactions occur when copper and copper oxides are mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f11d73877cdc17bd801e7c1dacdf929d
https://doi.org/10.1016/s0921-5093(00)01485-4
https://doi.org/10.1016/s0921-5093(00)01485-4
Publikováno v:
Journal of Catalysis, 198, 77-88. Academic Press Inc.
Alumina-supported nickel catalysts are widely used in industry. The synthesis of these catalysts often proceeds through coprecipitation: following the precipitation of nickel salts and drying, the material is calcined, reduced, and passivated. Each o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3eee0544e6f768e0f91b6c67caf357ba
https://hdl.handle.net/11245/1.187980
https://hdl.handle.net/11245/1.187980
Publikováno v:
Journal of Catalysis, 204, 333-338. Academic Press Inc.
Esterification reactions are conventionally carried out using homogeneous acids, such as sulphuric acid. Especially in view of catalyst separation, the use of heterogeneous catalysts is now heavily pursued. In the current work we have assessed the po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d1b3a5ef0a5b9d01f4df343f304da3c
https://dare.uva.nl/personal/pure/en/publications/the-mechanism-of-the-gas-phase-esterification-of-acetic-acid-and-ethanol-over-mcm41(10cc98aa-c8aa-40f4-94a0-d24d89d184ba).html
https://dare.uva.nl/personal/pure/en/publications/the-mechanism-of-the-gas-phase-esterification-of-acetic-acid-and-ethanol-over-mcm41(10cc98aa-c8aa-40f4-94a0-d24d89d184ba).html
Publikováno v:
Catalysis Today, 66, 263-270. Elsevier
The colloidal properties of catalysts present in three phase slurry reactors may affect the overall behaviour of such a reactor. In part, this may arise from the adhesion of such particles to gas bubbles, which may lead to enhancement of the G–L ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faf94f0600a123b8a79fe61290ff98a4
https://dare.uva.nl/personal/pure/en/publications/agglomeration-and-adhesion-of-catalyst-particles-in-gasliquid-reactors(8083bd54-b58b-4dbd-88bc-d82f0d9b05b1).html
https://dare.uva.nl/personal/pure/en/publications/agglomeration-and-adhesion-of-catalyst-particles-in-gasliquid-reactors(8083bd54-b58b-4dbd-88bc-d82f0d9b05b1).html