Method for producing high-quality feedstock for a steam cracking process
AssigneeSabic Global Technologies B.V.
InventorsArno Johannes Maria Oprins, Raul Velasco Pelaez, Egidius Jacoba Maria Schaerlaeckens
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Abstract
The present invention relates to a method for producing high-quality feedstock for a steam cracking process, said method comprising the following steps: i) providing a hydrocarbon feedstock; ii) contacting said hydrocarbon feedstock with a solvent at a dosage effective to remove aromatics and naphthenes from said feedstock forming a refined feedstock and one or more aromatics and naphthenes containing streams; iii) processing said refined feedstock in a steam cracking process.
Claims5
A method for producing high-quality feedstock for a steam cracking process, said method comprising the steps of:
- i.) providing an aromatics and naphthenes containing hydrocarbon feedstock;
- ii.) contacting said hydrocarbon feedstock with furfural at a dosage effective to remove aromatics and naphthenes from said feedstock forming a refined feedstock and one or more aromatics and naphthenes containing streams;
- iii.) processing said refined feedstock in a steam cracking process;
- wherein step ii) comprises two sub steps, namely a step iia) comprising separation of aromatics from said hydrocarbon feedstock of step i) thereby forming a naphthenes containing intermediate stream and an aromatics containing stream, and a step iib) comprising separation of naphthenes from said intermediate stream thereby forming a naphthenes containing stream and said refined feedstock;
- wherein said hydrocarbon feedstock originates from a naphthenic crude oil;
- wherein step iia) comprises a temperature range of 50 to 125° C. and a solvent dosage within a range of 50 to 450 percent;
- wherein said hydrocarbon feedstock has a boiling range in a range of 300-550° C.;
- and wherein the refined feedstock consists of paraffinic vacuum gas oil that does not contain aromatics or naphthenes.
A method for producing high-quality feedstock for a steam cracking process, said method consisting of the steps of:
- i.) providing an aromatics and naphthenes containing hydrocarbon feedstock;
- ii.) contacting said hydrocarbon feedstock with furfural at a dosage effective to remove aromatics and naphthenes from said feedstock forming a refined feedstock and one or more aromatics and naphthenes containing streams;
- iii.) processing said refined feedstock in a steam cracking process;
- wherein step ii) comprises two sub steps, namely a step iia) comprising separation of aromatics from said hydrocarbon feedstock of step i) thereby forming a naphthenes containing intermediate stream and an aromatics containing stream, and a step iib) comprising separation of naphthenes from said intermediate stream thereby forming a naphthenes containing stream and said refined feedstock;
- wherein said hydrocarbon feedstock originates from a naphthenic crude oil;
- wherein step iia) comprises a temperature range of 50 to 125° C. and a solvent dosage within a range of 50 to 450 percent;
- wherein said hydrocarbon feedstock has a boiling range in a range of 300-550° C.;
- and
- wherein the refined feedstock consists of paraffinic vacuum gas oil that does not contain aromatics or naphthenes.
Dependencies are inferred from the claim text.