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US 11,142,712 B2Granted
Processes and systems for petrochemical production integrating fluid catalytic cracking and deep hydrogenation of fluid catalytic cracking reaction products
AssigneeSaudi Arabian Oil Company
InventorOmer Refa Koseoglu
Life of this patent
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Abstract
A feedstock is processed in an FCC unit to produce at least light olefins, FCC naphtha, light cycle oil and heavy cycle oil. Light cycle oil, and in certain embodiments hydrotreated light cycle oil, is subjected to hydrogenation to produce a deeply hydrogenated middle distillate fraction. All or a portion of the deeply hydrogenated middle distillate fraction is used as feed to a petrochemicals production complex to produce light olefins.
Claims19
A process for petrochemical production comprising:
- providing a feedstock selected from the group consisting of naphtha, middle distillates or heavy oils;
- catalytically cracking the feedstock to produce at least light cycle oil;
- subjecting all or a portion of the light cycle oil from catalytic cracking of the feedstock to hydrogenation to hydrogenate aromatics contained in the light cycle oil and produce hydrogenated middle distillates, wherein hydrogenation occurs in the presence of an effective quantity of a hydrogenation catalyst containing one or more active metal components selected from Pt, Pd, Re and a combination comprising at least two of Pt, Pd or Re, and the hydrogenation catalyst including a catalyst support comprising non-acidic amorphous alumina and about 0.1-15 wt % of a modified USY zeolite having one or more of Ti, Zr and/or Hf substituting aluminum atoms constituting the zeolite framework thereof;
- and
- processing all or a portion of the hydrogenated middle distillates from hydrogenation of light cycle oil in a petrochemicals production complex to produce light olefins.
2 more elements
A system for petrochemical production comprising:
- a source of feedstock selected from the group consisting of naphtha, diesel or heavy oils;
- a primary FCC zone operable to receive the feedstock and to produce at least light cycle oil;
- a fixed-bed hydrogenation zone operable to receive all or a portion of the light cycle oil from the primary FCC zone and to produce hydrogenated middle distillates, the hydrogenation zone containing an effective quantity of a hydrogenation catalyst, the hydrogenation catalyst
- containing one or more active metal components selected from Pt, Pd, Re and a combination comprising at least two of Pt, Pd or Re, and
- including a catalyst support comprising non-acidic amorphous alumina and about 0.1-15 wt % of a modified USY zeolite having one or more of Ti, Zr and/or Hf substituting aluminum atoms constituting the zeolite framework thereof;
- and
- a petrochemicals production complex operable to receive all or a portion of the hydrogenated middle distillates from the hydrogenation zone and to produce light olefins.
4 more elements
Dependencies are inferred from the claim text.