Process, apparatus and system for treating a hydrocarbon feedstock
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-017/028
B01D-019/00
B01D-021/02
B01D-021/24
B01D-021/30
출원번호
US-0460571
(2012-04-30)
등록번호
US-8480908
(2013-07-09)
우선권정보
CA-2526336 (2005-11-09); CA-2643472 (2008-11-07)
발명자
/ 주소
Hann, Thomas Charles
출원인 / 주소
Suncor Energy Inc.
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
1인용 특허 :
87
초록▼
An apparatus, process and system for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock is disclosed and includes a treatment vessel having an inlet for receiving the feedstock. A primary separation container may be located in the treatment ve
An apparatus, process and system for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock is disclosed and includes a treatment vessel having an inlet for receiving the feedstock. A primary separation container may be located in the treatment vessel to accumulate feedstock to cause a low specific gravity portion of the feedstock to separate and rise to an upper surface of the accumulated feedstock. A secondary separation container may be located in the treatment vessel to receive the collected low specific gravity portion from the primary separation container, to accumulate the collected low specific gravity portion to cause hydrocarbon products to separate and rise to an upper surface of the accumulated low specific gravity portion of the feedstock, producing a hydrocarbon product stream at a product outlet. The operating pressure of the treatment vessel may be regulated to remain within a desired range.
대표청구항▼
1. A process for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock to produce a hydrocarbon product stream, the process comprising: receiving the feedstock at an inlet of a treatment vessel;directing the feedstock received from the inlet to f
1. A process for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock to produce a hydrocarbon product stream, the process comprising: receiving the feedstock at an inlet of a treatment vessel;directing the feedstock received from the inlet to flow along downwardly inclined base of a primary separation container to cause solids in the feedstock to settle to facilitate discharging the settled solids from a first outlet of the treatment vessel;accumulating the feedstock in the primary separation container in the treatment vessel, wherein a low specific gravity portion of the feedstock separates and rises toward an upper surface of the accumulated feedstock;collecting the low specific gravity portion from the accumulated feedstock in the primary separation container;accumulating the collected low specific gravity portion in a secondary separation container in the treatment vessel, wherein hydrocarbon products separate and rise toward an upper surface of the accumulated low specific gravity portion; andcollecting the hydrocarbon products from the accumulated low specific gravity portion to produce the hydrocarbon product stream. 2. The process of claim 1 further comprising: in response to an operating pressure of the treatment vessel rising above a pre-determined maximum operating pressure, causing at least some gaseous products produced from the feedstock to be vented out of the treatment vessel to lower the operating pressure. 3. The process of claim 2 further comprising: in response to the operating pressure of the treatment vessel falling below a pre-determined minimum operating pressure, introducing pressurized gas to the treatment vessel, wherein the operating pressure in the treatment vessel is raised. 4. The process of claim 1 wherein the downwardly inclined base forms a dividing wall between the primary separation container and the secondary separation container. 5. The process of claim 1 wherein at least a portion of the secondary separation container is located below the downwardly inclined base of the primary separation container. 6. The process of claim 1 wherein collecting the hydrocarbon products comprises causing the hydrocarbon products to overflow over a weir in the secondary separation container into a launder box in communication with a product outlet of the treatment vessel. 7. The process of claim 1 further comprising directing flow of feedstock from the inlet of the treatment vessel to a feed manifold operably configured to spread out the feedstock flow to reduce turbulence intensity and to provide a generally uniform feed of feedstock into the primary separation container. 8. The process of claim 1 further comprising causing a flow rate of the feedstock to be slowed as it approaches a first weir of the primary separation container, the first weir being configured to collect the low specific gravity portion from the accumulated feedstock in the primary separation container. 9. The process of claim 8 further comprising causing a portion of the feedstock to overflow at a second weir downstream of the first weir to produce a second discharge stream comprising predominantly water and fine solids. 10. The process of claim 1 further comprising: discharging predominantly coarse solids, precipitated asphaltenes and water from the primary separation container via the first outlet of the treatment vessel; anddischarging predominantly fine solids and water from the primary separation container via a second outlet of the treatment vessel. 11. The process of claim 10 further comprising: discharging predominantly water from the secondary separation container via a third outlet of the treatment vessel; anddischarging predominantly hydrocarbon products from the secondary separation container via a fourth outlet of the treatment vessel. 12. The process of claim 1 further wherein the feedstock comprises heavy hydrocarbon products, water, solids, and diluent in a proportion of 60-80% of the feedstock. 13. A process for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock to produce a hydrocarbon product stream, the process comprising: receiving the feedstock into a treatment vessel containing first and second separation containers;directing the feedstock received into the treatment vessel to flow along a downwardly inclined base of the first separation container to cause solids in the feedstock to settle to facilitate discharing the settled solids from a first outlet of the treatment vessel;collecting a low specific gravity portion of the feedstock in the first separation container, and discharging the collected low specific gravity portion into the second separation container;accumulating the collected low specific gravity portion of the feedstock in the second separation container, wherein hydrocarbon products separate and rise toward an upper surface of the accumulated low specific gravity portion; anddischarging the separated hydrocarbon products to a product outlet of the treatment vessel, to produce the hydrocarbon product stream at the product outlet. 14. The process of claim 13 further comprising maintaining an operating pressure of the treatment vessel generally within a predetermined range. 15. The process of claim 14 further comprising: in response to the operating pressure in the treatment vessel rising above a pre-determined maximum operating pressure, causing at least some gaseous products produced from the feedstock to be vented out of the treatment vessel to lower the operating pressure. 16. The process of claim 15 further comprising: in response to the operating pressure in the treatment vessel falling below a pre-determined minimum operating pressure, causing pressurized gas to enter the treatment vessel to raise the operating pressure in the treatment vessel. 17. The process of claim 13 further comprising vertically stacking the treatment vessel and a second stage treatment vessel, to treat the feedstock in stages, and configuring interstage feeding between the treatment vessel and the second stage treatment vessel to occur via the force of gravity. 18. The process of claim 13 further comprising receiving the hydrocarbon product stream from the treatment vessel as an input feedstock to a second stage treatment vessel operably configured to cause refined hydrocarbon products to be separated from the input feedstock and discharged at a product outlet of the second stage treatment vessel to produce a second stage hydrocarbon product stream. 19. An apparatus for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock, the apparatus comprising: a first treatment vessel having a first feedstock inlet for receiving the feedstock;a primary separation container having a downwardly inclined base, disposed in the first treatment vessel and operably configured to receive the feedstock from the first feedstock inlet of the first treatment vessel, to collect a low specific gravity portion of the feedstock, and to discharge the collected low specific gravity portion into a secondary separation container;wherein the feedstock received from the first feedstock inlet is directed to flow along the downwardly inclined base of the primary separation container to cause solids in the received feedstock to settle to facilitate discharging the settled solids from a first outlet of the first treatment vessel;wherein the secondary separation container is operably configured to accumulate the collected low specific gravity portion to cause hydrocarbon products in the low specific gravity portion to separate and rise toward an upper surface of the accumulated low specific gravity portion, and to discharge the separated hydrocarbon products via a first product outlet. 20. The apparatus of claim 19 further comprising a pressure regulator in communication with the first treatment vessel, wherein the first treatment vessel comprises a pressure containment vessel. 21. The apparatus of claim 20 wherein the pressure regulator is operably configured, in response to the operating pressure in the first treatment vessel rising above a pre-determined maximum operating pressure, to cause at least some gaseous products to be vented out of the first treatment vessel to reduce the operating pressure. 22. The apparatus of claim 20 wherein the pressure regulator is operably configured, in response to the operating pressure in the first treatment vessel falling below a pre-determined minimum operating pressure, to cause pressurized gas to enter the first treatment vessel to raise the operating pressure. 23. The apparatus of claim 19 further comprising: a second treatment vessel having a second feedstock inlet for receiving a second feedstock, and a second product outlet for discharging refined hydrocarbon products;the second treatment vessel being operably configured to receive, as the second feedstock at its second feedstock inlet, the separated hydrocarbon products discharged from the first product outlet;the second treatment vessel being operably configured to cause hydrocarbon products in the second feedstock to be separated from the second feedstock and to be discharged via the second product outlet as the refined hydrocarbon products. 24. The apparatus of claim 23 wherein the first and second treatment vessels are vertically stacked for treating the feedstock in stages, with interstage feeding between the first product outlet and the second feedstock inlet being configured to occur via the force of gravity. 25. The apparatus of claim 19 wherein the secondary separation container includes a weir operably configured to collect the hydrocarbon products which rise toward the upper surface of the accumulated low specific gravity portion. 26. The apparatus of claim 19 wherein the primary separation container includes a feed manifold operably configured to receive a flow of the feedstock from the inlet, to spread out the feedstock flow to reduce turbulence intensity and provide a generally uniform flow of feedstock into the primary separation container, and also to facilitate precipitation coalescence of asphaltenes in cases where the feedstock includes a paraffinic diluent. 27. The apparatus of claim 19 wherein an aspect ratio defined as the treatment vessel's length to the treatment vessel's diameter is about 20 to 7. 28. A system for treating a hydrocarbon feedstock having a specific gravity differential between components of the feedstock, the system comprising: a treatment vessel operably configured for pressure containment, having a feedstock inlet for receiving the feedstock, a product outlet for discharging hydrocarbon products and a discharge stream outlet for discharging a stream comprising water and solids;at least one separation container in the treatment vessel operably configured to receive the feedstock from the feedstock inlet, to accumulate a low specific gravity portion of the feedstock to cause hydrocarbon products in the low specific gravity portion to separate and rise toward an upper surface of the accumulated low specific gravity portion, and to discharge the separated hydrocarbon products to the product outlet, wherein the feedstock received from the feedstock inlet is directed to flow along a downwardly inclined base of the at least one separation container to cause solids to settle and to facilitate discharging a stream comprising the settled solids from the discharge stream outlet; anda pressure regulator in communication with the treatment vessel and operable to regulate operating pressure within the treatment vessel to be within a desired range. 29. The system of claim 28 wherein the at least one separation container in the treatment vessel comprises: a primary separation vessel within the treatment vessel for separating out the low specific gravity portion from a remaining portion of the feedstock; anda secondary separation vessel within the treatment vessel for separating out the hydrocarbon products from a remaining portion of the low specific gravity portion, for discharge to the product outlet. 30. The system of claim 28 further comprising at least one of: a recovery system in communication with the pressure regulator and operable to receive and process vented gaseous products from the treatment vessel if the operating pressure in the treatment vessel exceeds a pre-determined maximum operating pressure; anda source of pressurized gas in communication with the pressure regulator and operable to cooperate with the pressure regulator to supply gas to the treatment vessel if the operating pressure in the treatment vessel below a pre-determined minimum operating pressure.
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