Organic Rankine cycle based conversion of gas processing plant waste heat into power
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01K-025/08
F01K-021/00
F25B-011/02
F25B-043/00
F28D-021/00
F28D-015/00
F25B-009/00
F25J-003/06
F01K-007/16
F01K-013/00
F01K-025/06
F01K-007/02
F01K-025/10
F01K-023/04
F25B-001/06
F25B-005/02
F25B-039/00
F25J-003/02
F01K-023/08
출원번호
US-0978210
(2015-12-22)
등록번호
US-10113448
(2018-10-30)
발명자
/ 주소
Noureldin, Mahmoud Bahy Mahmoud
Kamel, Akram Hamed Mohamed
출원인 / 주소
Saudi Arabian Oil Company
대리인 / 주소
Fish & Richardson P.C.
인용정보
피인용 횟수 :
0인용 특허 :
23
초록▼
A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant. The system includes an Organic Rankine cycle energy conversion system including a pump, an energy conversion heat exchanger
A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant. The system includes an Organic Rankine cycle energy conversion system including a pump, an energy conversion heat exchanger configured to heat the working fluid by exchange with the heated heating fluid stream, a turbine and a generator configured to generate power by expansion of the heated working fluid, a cooling element configured to cool the expanded working fluid after power generation, and an accumulation tank. The heating fluid flows from the accumulation tank, through the waste heat recovery heat exchanger, through the Organic Rankine cycle energy conversion system, and back to the accumulation tank.
대표청구항▼
1. A system comprising: a waste heat recovery heat exchanger positioned in a crude oil associated gas processing plant, the waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in the crude oil associated gas processing plant;an Organic Rankine
1. A system comprising: a waste heat recovery heat exchanger positioned in a crude oil associated gas processing plant, the waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in the crude oil associated gas processing plant;an Organic Rankine cycle energy conversion system including: a pump configured to pump a working fluid to a pressure of between 11 Bar and 12 Bar, the working fluid comprising iso-butane;an energy conversion heat exchanger configured to heat the working fluid by exchange with the heated heating fluid stream;a turbine and a generator, wherein the turbine and generator are configured to generate power by expansion of the heated working fluid;a cooling element configured to cool the expanded working fluid after power generation; andan accumulation tank, wherein the heating fluid flows from the accumulation tank, through the waste heat recovery heat exchanger, through the Organic Rankine cycle energy conversion system, and back to the accumulation tank,wherein the crude oil associated gas processing plant is configured to process at least one of a gas that is associated with crude oil from an oil well and natural gas from a gas well to produce a sales gas comprising methane. 2. The system of claim 1, wherein the energy conversion heat exchanger has a thermal duty of between 3000 MM Btu/h and 3500 MM Btu/h. 3. The system of claim 1, wherein the energy conversion heat exchanger comprises an evaporator. 4. The system of claim 1, wherein the energy conversion heat exchanger is configured to heat the working fluid to a temperature of between 150° F. and 160° F. 5. The system of claim 1, wherein the energy conversion heat exchanger is configured to reduce the pressure of the working fluid to a pressure of between 10 Bar and 11 Bar. 6. The system of claim 1, wherein the working fluid enters the turbine in a vapor phase. 7. The system of claim 1, wherein the turbine and generator are configured to generate at least 60 MW of power. 8. The system of claim 1, wherein the cooling element has a thermal duty of between 2500 MM Btu/h and 3000 MM Btu/h. 9. The system of claim 1, wherein the cooling element is configured to cool the expanded working fluid by exchange with cooling fluid. 10. The system of claim 6, wherein the amount of power generated by the turbine and generator varies based on the temperature of the cooling fluid. 11. The system of claim 7, wherein when the temperature of the cooling fluid is less than 65° F., the turbine and generator generate between 70 MW and 90 MW of power. 12. The system of claim 7, wherein when the temperature of the cooling fluid is at least 70°, the turbine and generator generate between 60 MW and 80 MW of power. 13. The system of claim 1, wherein the heat source comprises a vapor stream from a slug catcher of the gas processing plant. 14. The system of claim 1, wherein the heat source comprises an output stream from a DGA stripper of the gas processing plant. 15. The system of claim 1, wherein the heat source comprises one or more of a sweet gas stream and a sales gas stream of the gas processing plant. 16. The system of claim 1, wherein the heat source comprises a propane header of a propane refrigeration unit of the gas processing plant. 17. The system of claim 1, wherein the heat source comprises an output stream from a compressor of the gas processing plant. 18. A method comprising: heating a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant, wherein the crude oil associated gas processing plant is configured to process at least one of a gas that is associated with crude oil from an oil well and natural gas from a gas well to produce a sales gas comprising methane;generating power in an Organic Rankine cycle energy conversion system, including: pumping a working fluid to a pressure of between 11 Bar and 12 Bar;heating the working fluid by exchange with the heated heating fluid stream;generating power, by a turbine and generator, by expansion of the heated working fluid; andcooling the expanded working fluid after power generation;wherein the heating fluid stream flows from an accumulation tank, through the waste heat recovery exchanger, through the Organic Rankine cycle energy conversion system, and back to the accumulation tank. 19. The method of claim 18, comprising heating the working fluid to a temperature of between 150° F. and 160° F. 20. The method of claim 18, wherein heating the working fluid comprises reducing the pressure of the working fluid to a pressure of between 10 Bar and 11 Bar. 21. The method of claim 18, wherein generating power comprises generating at least about 60 MW of power. 22. The method of claim 18, wherein cooling the expanded working fluid comprises cooling the working fluid by exchange with cooling fluid. 23. The method of claim 18, wherein the amount of power generated by the turbine and generator varies based on the temperature of the cooling fluid. 24. The method of claim 23, wherein when the temperature of the cooling fluid is less than 65° F., the turbine and generator generate between 70 MW and 90 MW of power. 25. The method of claim 23, wherein when the temperature of the cooling fluid is at least 70° , the turbine and generator generate between 60 MW and 80 MW of power. 26. The method of claim 18, comprising heating the heating fluid stream by exchange with a vapor stream from a slug catcher of the gas processing plant. 27. The method of claim 18, comprising heating the heating fluid stream by exchange with an output stream from a DGA stripper of the gas processing plant. 28. The method of claim 18, comprising heating the heating fluid stream by exchange with one or more of a sweet gas stream and a sales gas stream of the gas processing plant. 29. The method of claim 18, comprising heating the heating fluid stream by exchange with a propane header of a propane refrigeration unit of the gas processing plant. 30. The method of claim 18, comprising heating the heating fluid stream by exchange with an output stream from a compressor of the gas processing plant.
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