Methods and systems for producing light olefins from naphtha
AssigneeSabic Global Technologies B.V.
InventorJoris VAN WILLIGENBURG
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Abstract
Methods and systems for producing olefins from a naphtha feedstock are provided. Methods can include pyrolyzing the naphtha feedstock in the presence of hydrogen gas to produce a first effluent, separating the first effluent into light components, heavy components and one or more olefin product streams, steam cracking the light components to produce a second effluent, and extracting aromatics, if any, from the heavy components to produce a third effluent.
Claims20
A method for producing olefins and aromatics from a naphtha feedstock, the method comprising the steps of:
- (a) pyrolyzing the naphtha feedstock in the presence of hydrogen gas to produce a first effluent comprising first olefins;
- (b) separating the first effluent into light components, heavy components, if any, and one or more olefin product streams;
- (c) steam cracking the light components to produce a second effluent comprising second olefins;
- and
- (d) extracting aromatics, if any, from the heavy components to produce a third effluent.
A method for producing olefins and aromatics from a naphtha feedstock, the method consisting of the steps of:
- (a) pyrolyzing the naphtha feedstock in the presence of hydrogen gas to produce a first effluent comprising first olefins;
- (b) separating the first effluent into light components and heavy components and an olefin product streams, wherein the heavy components comprise aromatics;
- (c) steam cracking the light components to produce a second effluent comprising second olefins;
- and
- (d) extracting aromatics from the heavy components to produce a third effluent, wherein the yield sum of the ethylene and the propylene is greater than about 51%.
Dependencies are inferred from the claim text.