نتایج جستجو برای: hydrotreating catalyst

تعداد نتایج: 44207  

2002
OSKAR BAUDISCH DAVID DAVIDSON

The observation of Manchot? that sodium pentacyano-ammineferroate2 I absorbs oxygen has led Baudisch and his coworkers3 to study the catalytic action of this salt, as well as of its water analogue II, in the oxidation of pyrimidines and purines. The present authors have previously reported in this journal4 on the nature of the oxidation products obtained. In the present paper the problem is con...

2011
Nan-Yu Topsøe Anders Tuxen Berit Hinnemann Jeppe V. Lauritsen Kim G. Knudsen Flemming Besenbacher Henrik Topsøe

Infrared (IR) spectroscopy using NO as a probe molecule has been one of the important methods for characterizing hydrotreating catalysts, since this technique provides information on the nature and quantity of active edge sites of these catalysts. However, due to the strong adsorption of NO, which may lead to significant edge reconstructions, it has not been clear, how the characteristics of th...

Journal: :Periodicals of Engineering and Natural Sciences (PEN) 2021

This paper presents the results of mathematical models’ development for hydrotreating reactor, stripping ??lumn, absorbers and furnace which are basic units block in catalytic reforming unit. Since these objects modeling unit Atyrau refinery operate conditions insufficiency fuzziness initial information, their models developed on basis a systematic approach, using available information differen...

2004
John A. List Daniel L. Millimet

Assumptions of individual rationality and preference stability provide the foundation for a convenient and tractable modeling approach. While both of these assumptions have come under scrutiny in distinct literatures, the two lines of research remain disjointed. This study begins by explicitly linking the two literatures while providing insights into perhaps the central issue facing behavioral ...

Journal: :Digital Creativity 2000
Ernest A. Edmonds

Computers can be very helpful to us by performing tasks on our behalf. For example, they are very good at performing calculations, storing information and producing visualisations of objects that do not yet exist as a made artifact. Increasingly, however, a different role is being found for the computer. It is the role of a catalyst, or a stimulant, to our own creative thinking. In such cases t...

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