Gasification plant with total zero discharge of plant process waters
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0617621
(2009-11-12)
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등록번호 |
US-8425636
(2013-04-23)
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발명자
/ 주소 |
- Bommareddy, Sampath K.
- Vuong, Dinh-Cuong
- Kain, James Scott
- Amlani, Anil Dhansukh
- Weed, Robert Henry
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
In certain embodiments, a system includes a gasification system configured to output grey water. The system also includes a grey water zero liquid discharge (ZLD) system configured to receive the grey water and to generate a first stream of distillate. The grey water ZLD system comprises an ammonia
In certain embodiments, a system includes a gasification system configured to output grey water. The system also includes a grey water zero liquid discharge (ZLD) system configured to receive the grey water and to generate a first stream of distillate. The grey water ZLD system comprises an ammonia stripping system. An amount of water into and out of the grey water ZLD system is approximately equal.
대표청구항
▼
1. A system, comprising: a gasification system with an output of grey water;a cooling tower system configured to receive raw water and to supply the gasification system with process water;a grey water zero liquid discharge (ZLD) system configured to receive the grey water from the gasification syste
1. A system, comprising: a gasification system with an output of grey water;a cooling tower system configured to receive raw water and to supply the gasification system with process water;a grey water zero liquid discharge (ZLD) system configured to receive the grey water from the gasification system, to generate a first stream of distillate, and to direct the first stream of distillate to the gasification system; anda cooling water ZLD system configured to receive cooling tower blowdown from the cooling tower system, to generate a second stream of distillate, and to direct the second stream of distillate to the cooling tower system. 2. The system of claim 1, wherein water streams into and out of the grey water ZLD system are approximately equal, and wherein water streams into and out of and the cooling water ZLD system are approximately equal. 3. The system of claim 1, wherein the first and second streams of distillate are combined upstream of the cooling tower system. 4. The system of claim 1, wherein the grey water ZLD system comprises a softening pre-treatment system configured to remove scale-forming compounds from the grey water. 5. The system of claim 4, wherein the grey water ZLD system comprises an ammonia stripping system downstream of the softening pre-treatment system. 6. The system of claim 1, wherein steam condensate is circulated to and from the cooling tower system and the gasification system separate from the first and second streams of distillate. 7. The system of claim 1, wherein the cooling water ZLD system comprises a softening clarifier, one or more filters, an ultra-filtration system, a reverse osmosis system, and a thermal evaporation system configured to process the cooling tower blowdown. 8. The system of claim 7, wherein brine water from the reverse osmosis system is directed to the thermal evaporation system. 9. The system of claim 7, wherein a stream of permeate is directed from the reverse osmosis system only to the cooling tower system. 10. The system of claim 1, wherein a gasification process plant for chemical production comprises the gasification system. 11. The system of claim 1, wherein an integrated gasification combined cycle system power plant comprises the gasification system. 12. A system, comprising: a gasification system configured to output grey water;a cooling tower system configured to receive raw water and to supply the gasification system with process water;a grey water zero liquid discharge (ZLD) system configured to receive the grey water and to generate a first stream of distillate, wherein the grey water ZLD system comprises an ammonia stripping system, and an amount of water into and out of the grey water ZLD system is approximately equal; anda cooling water ZLD system configured to receive cooling tower blowdown from the cooling tower system, to generate a second stream of distillate, and to direct the second stream of distillate to the cooling tower system. 13. The system of claim 12, wherein the grey water ZLD system comprises a softening pre-treatment system configured to remove scaling compounds from the grey water upstream of the ammonia stripping system. 14. The system of claim 12, wherein the first stream of distillate from the grey water ZLD system is combined with the second stream of distillate from the cooling water ZLD system. 15. The system of claim 14, wherein the first stream of distillate from the grey water ZLD system is combined with a permeate stream from a reverse osmosis system of the cooling water ZLD system. 16. The system of claim 15, wherein the combined stream of the first stream of distillate and the permeate stream is directed to the cooling water ZLD system. 17. The system of claim 14, wherein the first and second streams of distillate are directed into either the gasification system or the cooling tower system. 18. A system, comprising: a gasification system configured to output grey water;a cooling tower configured to receive raw water and to supply the gasification system with process water;a cooling water zero liquid discharge (ZLD) system having an evaporation pond, wherein the cooling water ZLD system is configured to receive cooling tower blowdown from the cooling tower and to generate brine water that is directed to the evaporation pond, and wherein an amount of water into and out of the cooling water ZLD system is approximately balanced; anda grey water ZLD system configured to receive the grey water and to generate distillate, wherein the grey water ZLD system comprises an ammonia stripping system, and an amount of water into and out of the grey water ZLD system is approximately balanced. 19. The system of claim 18, wherein total wastewater discharge of the system is approximately zero.
이 특허에 인용된 특허 (4)
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Chen, Shiaguo; Lu, Yonggi; Rostam-Abadi, Massoud, Integrated vacuum absorption steam cycle gas separation.
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Netzer David (Stafford TX), Process for the manufacture of fuel gas.
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Davis,Thomas A., Production of purified water and high value chemicals from salt water.
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Harada,Masahiro; Honjo,Shintaro; Susaki,Makoto; Ishida,Kazuo; Nagano,Hajime; Okino,Susumu, Wet gas purification method and system for practicing the same.
이 특허를 인용한 특허 (2)
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Cunningham, Stephen L.; Stuart, Martin A., Arc furnace smeltering system and method.
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Cunningham, Stephen L.; Stuart, Martin A., Plasma ARC furnace with supercritical CO2 heat recovery.
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