Methods and apparatuses for producing hydrocarbons

Patent metadata

Field	Value
Publication number	US-2016137932-A1
Application number	US-201414546239-A
Country	US
Kind code	A1
Filing date	Nov 18, 2014
Priority date	Nov 18, 2014
Publication date	May 19, 2016
Grant date	—

Abstract

Methods and oil refinery apparatuses are provided for producing hydrocarbons. A method includes fractionating a crude oil feedstock to produce a crude saturated stream and a residual stream. The residual stream is cracked in a cracking device to produce an unsaturated stream, and the unsaturated stream and the crude saturated stream are combined to produce a combined stream. The combined stream is fractionated to produce a refinery fuel gas stream.

First claim

1 . A method of producing hydrocarbons comprising the steps of:
fractionating a crude oil feedstock to produce a crude saturated stream and a residual stream; cracking the residual stream in a cracking device to produce an unsaturated stream; combining the crude saturated stream with the unsaturated stream to produce a combined stream; and fractionating the combined stream to produce a refinery fuel gas stream.

2 . The method of claim 1 wherein fractionating the combined stream comprises producing a stripper C2− stream, the method further comprising:
removing hydrogen sulfide from the stripper C2− stream to produce the refinery fuel gas stream.

3 . The method of claim 1 wherein cracking the residual stream comprises cracking the residual stream in a fluid catalytic cracking unit.

4 . The method of claim 1 wherein fractionating the combined stream comprises producing a gasoline stream.

5 . The method of claim 1 wherein fractionating the combined stream comprises producing a butyl stream.

6 . The method of claim 1 wherein fractionating the combined stream comprises producing a propyl stream.

7 . The method of claim 1 wherein fractionating the combined stream comprises producing the refinery fuel gas stream, a gasoline stream, a butyl stream, and a propyl stream.

8 . The method of claim 1 where fractionating the crude oil feedstock comprises producing a crude diesel stream, the method further comprising:
hydrotreating the crude diesel stream to produce a crude diesel hydrotreater fuel gas stream; and
combining the crude diesel hydrotreater fuel gas stream with the combined stream prior to fractionating the combined stream.

9 . The method of claim 1 further comprising:
combining a plurality of hydrotreating fuel gas streams with the combined stream prior to fractionating the combined stream.

10 . The method of claim 1 further comprising:
fractionating the crude saturated stream to produce a saturated naphtha stream and a saturated stabilizer stream; and wherein
combining the crude saturated stream with the unsaturated stream comprises combining the saturated stabilizer stream with the unsaturated stream.

11 . The method of claim 1 further comprising:
combining a hydrocracker saturated stream with the combined stream prior to fractionating the combined stream.

12 . A method of producing hydrocarbons comprising the steps of:
hydrocracking a hydrocracker feedstock to produce a hydrocracker saturated stream and a hydrocracker product stream; cracking a residual stream in a cracking device to produce an unsaturated stream; combining the hydrocracker saturated stream with the unsaturated stream to produce a combined stream; and fractionating the combined stream to produce a gasoline stream.

13 . The method of claim 12 wherein cracking the residual stream in the cracking device comprises cracking the residual stream in a fluid catalytic cracking unit.

14 . The method of claim 13 wherein cracking the residual stream comprises producing a fluid catalytic cracking diesel stream, the method further comprising:
hydrotreating the fluid catalytic cracking diesel stream to produce a fluid catalytic cracker diesel hydrotreater fuel gas stream; and
combining the fluid catalytic cracker diesel hydrotreater fuel gas stream with the combined stream prior to fractionating the combined stream.

15 . The method of claim 12 wherein fractionating the combined stream comprises producing a refinery fuel gas stream.

16 . The method of claim 15 wherein fractionating the combined stream comprises producing a stripper C2− stream, the method further comprising:
removing hydrogen sulfide from the stripper C2− stream in an amine absorber to produce the refinery fuel gas stream.

17 . The method of claim 12 wherein fractionating the combined stream comprises producing the gasoline stream, a refinery fuel gas stream, a butyl stream, and a propyl stream.

18 . The method of claim 12 further comprising:
combining a plurality of hydrotreater fuel gas streams with the combined stream prior to fractionating the combined stream.

19 . The method of claim 12 further comprising:
combining a crude saturated stream with the combined stream prior to fractionating the combined stream.

20 . An oil refining apparatus comprising:
a crude distillation unit comprising a crude receiver; a saturated compressor fluidly coupled to the crude receiver; a fluid catalytic cracking unit fluidly coupled to the crude distillation unit a fluid catalytic cracking compressor fluidly coupled to the fluid catalytic cracking unit; a union coupled to the fluid catalytic cracking compressor and the saturated compressor; and a fractionation area fluidly coupled to the union.

Assignees

• Uop Llc

Inventors

• Kulprathipanja Sathit
• Mccormick Christopher
• Ritchie Joseph M

Classifications

• C10G2300/207

  Acid gases, e.g. H2S, COS, SO2, HCN · CPC title

• C10G47/00

  Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions (C10G15/00 takes precedence; destructive hydrogenation of non-melting solid carbonaceous or similar materials C10G1/06) · CPC title

• C10G11/18

  according to the "fluidised-bed" technique · CPC title

• C10G45/00

  Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds · CPC title

• C10G69/04 Primary

  including at least one step of catalytic cracking in the absence of hydrogen · CPC title