초록

The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is severely hydrotreated and passed to a steam cracker to obtain an olefins product.

대표청구항 ▼

1. A process comprising: (i) obtaining a hydroprocessed effluent from a resid hydroprocessing unit, wherein the effluent comprises greater than 5 wt % 343° C.+ resid;(ii) steam cracking substantially all of the effluent to obtain a product comprising olefins, without removal or separation of a hydro

1. A process comprising: (i) obtaining a hydroprocessed effluent from a resid hydroprocessing unit, wherein the effluent comprises greater than 5 wt % 343° C.+ resid;(ii) steam cracking substantially all of the effluent to obtain a product comprising olefins, without removal or separation of a hydroprocessed resid fraction from the effluent prior to feeding the effluent into a radiant section of a steam cracker. 2. The process of claim 1, wherein the effluent is hydrogenated and has been subjected to thermal cracking of at least a portion of the resid in the hydroprocessing unit. 3. The process of claim 1, wherein a hydrogen concentration of the effluent from the resid hydroprocessing unit comprises at least about 1 wt % more hydrogen than a hydrogen concentration of a hydrocarbon feed coming into the resid hydroprocessing unit. 4. The process of claim 1, wherein the step of steam cracking comprises adding steam to the effluent from the resid hydroprocessing unit prior to cracking the effluent in a radiant section of a steam cracker. 5. The process of claim 1, further comprising the step of processing crude or a crude fraction containing resid in the hydroprocessing unit to produce the effluent from the hydroprocessing unit. 6. The process of claim 5, wherein the step of processing comprises combining the crude or crude fraction containing resid with hydrogen or a source for hydrogen, at a pressure of at least about 5516 kPa and a temperature of at least 315° C. 7. The process of claim 2, further comprising the step of flashing the hydroprocessed effluent through a pressure drop prior to steam cracking the effluent. 8. The process of claim 6, further comprising the step of utilizing remote methane as a source for hydrogen for hydroprocessing. 9. The process of claim 3, wherein the hydrocarbon feed is a feedstock rich in polynuclear aromatics.