Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1998-04-28
2000-05-09
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
20812001, 208152, 502514, 502518, C10G 1100
Patent
active
060599596
ABSTRACT:
This process controls the magnetic separation of high metals catalyst by influencing the magnetic susceptibility by carbon levels on catalyst. In an FCC/RCC.RTM. operation employing magnetic separation of catalyst, particularly where the catalyst has enough metals to exhibit a high magnetic susceptibility, e.g., 110.times.10.sup.-6 emu/g or higher, all of the catalyst may be attracted to the magnet and go to the magnetic reject side. By controlling the amount of carbon, coke, or graphite present on the catalyst after partial regeneration, the magnetic properties of the catalyst can be diminished and separation can occur. Varying the amount of carbon affects the magnetic metals, the higher the magnetic susceptibility, and yet the catalyst particles will have a lower carbon level. The lower the magnetic susceptibility, the less metals, the higher the activity, and the higher the coke/carbon content.
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Magnet Terminology Glossary, Magnet Sales and Manufacturing, Inc.--no date.
Griffin Walter D.
Kellogg Brown & Root, Inc.
Preisch Nadine
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