Hydrocarbon alkylation processes employing a phosphorus-modified alumina composite
AssigneeUop LLC
InventorTai-Hsiang Chao
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Abstract
Hydrocarbon conversion processes including hydrocracking and hydrotreating are performed utilizing a novel phosphorus-modified alumina composite comprising a hydrogel having a molar ratio on an elemental basis of phosphorus to aluminum of from 1:1 to 1:100 together with a surface area of about 140 to 450 m.sup.2 /gm. The composite is prepared by admixing an alumina hydrosol with a phosphorus-containing compound to form a phosphorus-modified sol and gelling said admixture.
Claims11
An alkylation process which comprises contacting a hydrocarbon feedstock with a catalyst, maintained at alkylation-promoting conditions, comprising an amorphous phosphorus-modified calcined alumina hydrogel composite having a molar ratio on an elemental basis of aluminum to phosphorous less than 2.3:1 and having a surface area of from about 140 to 450 m.sup.2 /g.
Dependencies are inferred from the claim text.