IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0639322
(2009-12-16)
|
등록번호 |
US-8545679
(2013-10-01)
|
발명자
/ 주소 |
- Cauley, Phillip L.
- Edwards, Tracy L.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
25 |
초록
▼
A system for recovering hydrocarbons from tar sands includes a heated enclosure 66, one or more input conveyors 60, 67 move tar sands through the heated enclosure, provide a flow line with a temperature gradient of at least 150 F.°, and mechanically move the tar sands along the flow line. A heated r
A system for recovering hydrocarbons from tar sands includes a heated enclosure 66, one or more input conveyors 60, 67 move tar sands through the heated enclosure, provide a flow line with a temperature gradient of at least 150 F.°, and mechanically move the tar sands along the flow line. A heated rotary drum 74 is in fluid communication with the flow line, and condenser unit 94, 98 receive vapors from the flow line and the rotary drum and output hydrocarbons. One or more discharge conveyors 76 discharge stripped sands from the rotary drum. Control valves 80, 82 seal a vacuum downstream from the discharge conveyors, and control valves 34, 46 seal vacuum upstream from the one or more input conveyors. Various types of vacuum pumps may be used to maintain a selected vacuum between the control valves.
대표청구항
▼
1. A system for recovering hydrocarbons from a hydrocarbon containing material, the system comprising: a heated enclosure having an interior chamber;an input conveyor for inputting the material to the heated enclosure, the heated enclosure housing a flow line therein with a temperature gradient alon
1. A system for recovering hydrocarbons from a hydrocarbon containing material, the system comprising: a heated enclosure having an interior chamber;an input conveyor for inputting the material to the heated enclosure, the heated enclosure housing a flow line therein with a temperature gradient along the flow line of at least 150 F.°, thereby producing hydrocarbon vapors and stripped solids as the material is moved along the flow line;a heated rotary drum in fluid communication with the flow line for receiving the material from the flow line, the rotary drum having an interior temperature of from 760° F. to 840° F. for generating further hydrocarbon vapors and stripped solids;a condenser in fluid communication with both the flow line and the rotary drum for receiving the vapors from the flow line and the rotary drum and outputting liquids including hydrocarbons;a discharge conveyor for discharging the stripped solids from the rotary drum;one or more input control valves for sealing vacuum downstream from the one or more input conveyors, each input control valve having one or more axially spaced closure gates for redundant sealing downstream from the input conveyor;one or more discharge control valves for sealing vacuum upstream from the one or more discharge conveyors, each discharge control valve having two or more axially spaced closure gates for the redundant sealing upstream from the discharge conveyor; anda vacuum pump for maintaining a selected vacuum of less than 5 inches of water between the one or more input valves and the one or more discharge valves, such that hydrocarbon vapors are drawn from the flow line and the rotary drum into the condenser. 2. The system as defined in claim 1, wherein a drum sensor senses a temperature within the rotating drum; and material movement through the enclosure is controlled as a function of the measured drum temperature. 3. The system as defined in claim 1, further comprising: a substantially vertical input conveyor in fluid communication with the one or more input control valves for providing a plug of tar sands for minimizing vacuum loss; anda substantially vertical waste conveyor in fluid communication with the one or more discharge control valves for providing a plug of stripped solids for minimizing vacuum loss. 4. The system as defined in claim 1, wherein each of the input conveyor, the discharge conveyor, and one or more heated conveyors within the flow line, includes a rotary auger. 5. The system as defined in claim 4, wherein each rotary auger is rotated by a drive motor and gearbox, a seal engaging a rotary shaft connected to each auger for sealing vacuum, and a sealed enclosure downstream from the seal for containing gases which pass by the seal. 6. The system as defined in claim 1, wherein the flow line extends in one axial direction and in a substantially opposing axial direction within the heated chamber. 7. The system as defined in claim 1, further comprising: a nitrogen supply system to supply nitrogen to stripped sands discharged from the discharge conveyor. 8. The system as defined in claim 1, further comprising: a condensing column upstream of the condenser for separating liquids and gases, hydrocarbon vapors being input into a lower portion of the condensing column. 9. The system as defined in claim 1, further comprising: a steam line for inputting steam at a temperature of greater than 800° F. into the rotary drum. 10. A system for recovering hydrocarbons from a hydrocarbon containing material, the system comprising: a heated enclosure having an interior chamber and a plurality of internal baffles within the heated chamber;an input conveyor for inputting material to the heated enclosure;a flow line within the heated enclosure in fluid communication with the input conveyor for receiving material and positioned with respect to the plurality of baffles to provide a temperature gradient along the flow line of 150° F., thereby producing hydrocarbon vapors and stripped solids;a conveyor within the flow line mechanically moving the material along the flow line;a heated rotary drum in fluid communication with the flow line for receiving the material from the flow line, the drum having an interior temperature of from 760° F. to 840° F. for generating hydrocarbon vapors and stripped solids;a steam hue for inputting steam at a temperature of greater that 800° F. into the rotary drum;a condenser in fluid communication with both the flow line and the rotary drum for receiving the vapors from the flow line and the rotary drum and outputting liquids including hydrocarbons and gas including hydrocarbons; anda discharge conveyor for discharging the stripped solids from the rotary drum. 11. The system as defined in claim 10, further comprising: an input control valve positioned along the input conveyor for sealing vacuum downstream from the input conveyor, the input control valve having two or more axially spaced closure gates; anda discharge control valve positioned along the discharge conveyor for sealing vacuum upstream from the discharge conveyor, the discharge control valve having two or more axially spaced closure gates. 12. The system as defined in claim 10, further comprising: a substantially vertical input conveyor in fluid communication with one or more input control valves for providing a plug of tar sands for minimizing vacuum loss; anda substantially vertical waste conveyor in fluid communication with one or more discharge control valves for providing a plug of stripped solids for minimizing vacuum loss. 13. The system as defined in claim 10, further comprising: a flow meter for measuring a flow rate of hydrocarbon vapors to the condenser. 14. The system as defined in claim 10, wherein the flow line extends in one axial direction and in a substantially opposing axial direction within the heated chamber. 15. A system for recovering hydrocarbons from hydrocarbon containing material, the system comprising: a heated enclosure having an interior chamber;an input conveyor for inputting material, to the heated enclosure;a flow line within the heated enclosure in fluid communication with the input conveyor for receiving material to provide a temperature gradient along the flow line of 150° F., thereby producing hydrocarbon vapors and stripped solids;a heated rotary drum in fluid communication with the flow line for receiving the material from the flow line, the rotary drum having an interior temperature of from 760° F. to 840° F. for generating hydrocarbon vapors and stripped solids;a condenser in fluid communication with both the flow line and the rotary drum for receiving the vapors and outputting liquids including hydrocarbons and gas including hydrocarbons;a discharge conveyor for discharging the stripped solids;an input control valve positioned along the input conveyor for scaling vacuum downstream from the input conveyor;a discharge control valve positioned along the discharge conveyor for sealing vacuum upstream from the discharge conveyor;a vacuum pump for maintaining a selected vacuum between the input valve and the discharge valves, such that hydrocarbon vapors are drawn from the flow line and the rotary drum into the condenser;a flow meter for measuring a flow rate of hydrocarbon vapors to the condenser;each of the input conveyor, the discharge conveyor, and one or more heated conveyors within the flow line, includes a rotary auger;a flow rate sensor for sensing the speed of each rotary auger and outputting a flow rate signal; anda processor for controlling a flow rate of material through the system in response to the flow meter and the flow rate signal. 16. The system as defined in claim 15, wherein a portion of one of the gas including hydrocarbons and the liquids including hydrocarbons are input to a burner within the heated closure. 17. The system as defined in claim 15, wherein the flow line extends in one axial direction and in a substantially opposing axial direction within the heated chamber. 18. The system as defined in claim 15, further comprising: a condensing column upstream of the condenser for separating liquids and gases, hydrocarbon vapors being input into a lower portion of the condensing column.
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