Combined desulfurization and conversion with alkali metals...

Details Combined desulfurization and conversion with alkali metals... Combined desulfurization and conversion with alkali metals...

C - Chemistry, Metallurgy

10

G

196/130

C10G 1/02 (2006.01) C10G 65/12 (2006.01)

Patent

CA 1091605

ABSTRACT OF THE DISCLOSURE In an improved process for the combined desulfurization and hydroconversion of various sulfur-containing petroleum oils, the feedstock is contacted with an alkali metal or sodium hydride in a conversion zone maintained at specified conditions such that the feedstock is both desulfurized and subjected to significant hydroconversion. This is particularly demonstrated by significant reductions in the 1,050°F+ fraction of the feedstock, as well as significantly decreased Conradson carbon and increased API gravity. In addition, the deep demetallization and moderate denitrogenation of the feedstock is also achieved. These important results are obtained by maintaining the conversion zone at temperatures of above 750°F, and in the presence of sufficient added hydrogen pressure in the conversion zone of between about 1500 and 3000 psig.

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