Methods for increasing catalyst concentration in heavy oil...

Details Methods for increasing catalyst concentration in heavy oil... Methods for increasing catalyst concentration in heavy oil...

2007-10-31

2011-10-11

Griffin, Walter (Department: 1774)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

C208S058000, C208S108000

Reexamination Certificate

active

08034232

ABSTRACT:
Methods and systems for hydrocracking a heavy oil feedstock using, a colloidally or molecularly dispersed catalyst (e.g., molybdenum sulfide) which provide for concentration of the colloidally dispersed catalyst within the lower quality materials requiring additional hydrocracking. In addition to increased catalyst concentration, the inventive systems and methods provide increased reactor throughput, increased reaction rate, and of course higher conversion of asphaltenes and lower quality materials. Increased conversion levels of asphaltenes and lower quality materials also reduces equipment fouling, enables the reactor to process a wider range of lower quality feedstocks, and can lead to more efficient use of a supported catalyst if used in combination with the colloidal or molecular catalyst.

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