Single reactor process for benzene-saturation/isomertzation of light reformates
AssigneeAbu Dhabi Oil Refining Company (Takreer)
InventorsTony Joseph, Syed Basheer Umar
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Abstract
A process for reducing the benzene content of a light reformate refinery stream comprises the following steps: a) reducing the benzene content by exposing the light reformate to hydrogenation conditions in a benzene-saturation reactor bed, b) increasing the octane number of the hydrogenated light reformate produced in step a) by exposing it to isomerization conditions, c) further reducing the benzene content by exposing the light reformate refinery stream to further hydrogenation conditions, wherein the isomerization of step b) occurs after step a), the hydrogenation of step c) does not precede the isomerization step b), and steps a), b) and c) are all carried out within the same reactor.
Claims9
A process for reducing the benzene content of a light reformate refinery stream containing benzene, which comprises the following steps:
- a) reducing the benzene content by exposing the light reformate to hydrogenation conditions in a first benzene-saturation reactor bed,
- b) increasing the octane number of the hydrogenated light reformate produced in step a) by exposing it to isomerization conditions, and
- c) further reducing the benzene content by exposing the light reformate refinery stream to further hydrogenation conditions,
- wherein the isomerization of step b) occurs after step a), the hydrogenation of step c) occurs after the isomerization step b), and steps a), b) and c) are all carried out within the same reactor.
A benzene-saturation reactor comprising:
- a) an upper reactor zone, being a first benzene-saturation reactor bed, which in turn comprises a hydrogenation catalyst
- b) a lower reactor zone, capable of effecting both isomerization and benzene-saturation, comprising:
- b1):
- an isomerization reactor bed, comprising an isomerization catalyst,
- b2) a second benzene-saturation reactor bed, comprising a hydrogenation catalyst,
- wherein the isomerization reactor bed b1) is situated above the second benzene saturation bed b2),
- and the upper reactor zone is situated above the lower reactor zone.
Dependencies are inferred from the claim text.