Process for the hydroisomerization and hydrocracking of Fisher-T

Mineral oils: processes and products – Paraffin wax; treatment or recovery – Chemical treatment

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585736, 585737, 585738, 585748, 585253, 208 24, 208 58, 208 59, 208 61, 208 85, 208 88, 208 93, 208 95, 208112, C10G 7338, C10G 7342

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048328197

ABSTRACT:
A process for producing a pumpable syncrude from a Fischer-Tropsch wax by fractionating the wax into relatively low boiling fraction containing oxygenate compounds and a relatively high boiling fraction which is substantially free of oxygenate compounds and thereafter isomerizing/hydrocracking the low boiling fraction in the presence of hydrogen and a fluorided Group VIII metal-on-alumina catalyst. The preferred Group VIII metal is platinum.
The pumpable syncrude is thereafter fractionated to produce a low boiling fraction which is thereafter isomerized/hydrocracked in the presence of hydrogen and a fluorided Group VIII metal-on-alumina catalyst to produce upgraded middle distillate fuel products. The preferred catalyst for middle distillate production is a fluorided platinum-on-alumina catalyst where a major portion of the fluoride within the catalyst is present as aluminum fluoride hydroxide hydrate.

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