[특허]Thermal engine driven heat pump for recovery of volatile organic compounds

Mechanical Technology Incorporated

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특허 상세정보

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Thermal engine driven heat pump for recovery of volatile organic compounds

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-007/00 B01D-051/00
미국특허분류(USC)	062/079; 062/093; 062/323.1; 034/027; 055/023
출원번호	US-0561458 (1990-08-01)
발명자 / 주소	Drake, Richard L.
출원인 / 주소	Mechanical Technology Incorporated
대리인 / 주소	Claeys, Joseph V.Sullivan, Joseph C.
인용정보	피인용 횟수 : 9 인용 특허 : 4

초록
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The present invention relates to a method and apparatus for separating volatile organic compounds from a stream of process gas. An internal combustion engine drives a plurality of refrigeration systems, an electrical generator and an air compressor. The exhaust of the internal combustion engine drives an inert gas subsystem and a heater for the gas. A water jacket captures waste heat from the internal combustion engine and drives a second heater for the gas and possibly an additional refrigeration system for the supply of chilled water. The refrigeration...

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1. An apparatus for separating volatile organic compounds from a stream of gas, including: an internal combustion engine including a rotating shaft; an inert gas generating means for converting at least a portion of exhaust from said internal combustion engine into an inert gas and mixing said inert gas into said stream of gas; heat transfer means for recovering waste heat from said internal combustion engine to heat a portion of said stream of gas; a first and a second refrigeration system operatively connected to said rotating shaft of said internal combustion engine, said first and said second refrigeration systems operating at substantially different temperatures, said first and second refrigeration systems receiving said stream of gas and cooling said stream of gas thereby extracting the volatile organic compounds therefrom. 2. The apparatus of claim 1 further including means for heating said stream of gas using at least a portion of exhaust from said internal combustion engine. 3. The apparatus of claim 2 wherein said internal combustion engine mechanically drives a generator to provide electricity for controlling said apparatus. 4. The apparatus of claim 3 further including a process interface subsystem comprising: means for separating an input of said stream of gas into a first and a second substream; cooling means receiving said first substream, said cooling means and said inert gas generating means communicating with said first refrigeration system; a first heat exchanger communicating with said heat transfer means to heat said second substream; a blower receiving said second substream and communicating said second substream to said means for heating; said means for heating providing an output of said stream of gas. 5. The apparatus of claim 4 wherein said first refrigeration system comprises a reverse Brayton cycle, including a first motor operatively attached to said internal combustion engine, and a first compressor and a first expander operatively attached to said first motor, said first compressor receiving said first substream, including inert gas from said inert gas generating means, from said cooling means and communicating said first substream to a regenerative heat exchange means. 6. The apparatus of claim 5 wherein said regenerative heat exchange means cools and communicates said first substream from said first compressor to said first expander. 7. The apparatus of claim 6 wherein said first expander communicates said first substream to a chamber within said regenerative heat exchange means wherein a third substream, including the volatile organic compounds, precipitates therefrom to a solvent separator. 8. The apparatus of claim 7 wherein said regenerative heat exchange means combines a fourth substream from said second refrigeration system into said first substream, precipitates therefrom a fifth substream, including the volatile organic compounds, to a solvent separator, and communicates said first substream to be combined with said second substream to said pump. 9. The apparatus of claim 8 wherein said second refrigeration system comprises a vapor-compression cycle, including a second heat exchanger, a second motor operatively attached to said internal combustion engine, and a second compressor operatively attached to said second motor, wherein a primary side of said second heat exchanger communicates said fourth substream to and from said regenerative heat exchange means and wherein a secondary side of said second heat exchanger receives refrigerant from said vapor-compression cycle. 10. The apparatus of claim 4 wherein said first refrigerant system comprises a vapor-compressed cycle, including a first motor operatively attached to said internal combustion engine, and a first compressor operatively attached to said first motor, said first compressor on a secondary side of a second heat exchanger, said first substream including inert gas from said inert gas generating means being received on a primary side of said second heat exchanger via a regenerative heat exchange means. 11. The apparatus of claim 10 wherein said regenerative heat exchange means cools and communicates said first substream from said cooling means to said second heat exchanger. 12. The apparatus of claim 11 wherein said second heat exchanger communicates said first substream to a chamber within said regenerative heat exchange means wherein a third substream, including the volatile organic compounds, precipitates therefrom to a solvent separator. 13. The apparatus of claim 12 wherein said regenerative heat exchange means combines a fourth substream from said second refrigeration system into said first substream, precipitates therefrom a fifth substream, including the volatile organic compounds, to a solvent separator, and communicates said first substream to be combined with said second substream to said pump. 14. The apparatus of claim 13 wherein said second refrigeration system comprises a second vapor-compression cycle, including a third heat exchanger, a second motor operatively attached to said internal combustion engine, and a second compressor operatively attached to said second motor, wherein a primary side of said third heat exchanger communicates said fourth substream to and from said regenerative heat exchanger and wherein a secondary side of said second heat exchanger receives refrigerant from said second vapor-compression cycle. 15. The apparatus of claim 14 wherein refrigerant is exchanged between said first and said second refrigeration systems. 16. The apparatus of claim 15 wherein said first refrigeration system includes a condenser for exchange of refrigerant between said first and said second refrigeration systems. 17. The apparatus of claim 16 further including a third refrigeration system driven by said heat transfer means to provide chilled water. 18. A method for separating volatile organic compounds from a stream of gas including the steps of: providing an internal combustion engine; using a water jacket on said internal combustion engine to direct a portion of waste heat from said internal combustion engine to heat a portion of said stream of gas; combining inert gas from an inert gas generating system driven by exhaust from said internal combustion engine with said stream of gas; using a mechanical output of said internal combustion engine to drive at least two refrigeration systems at substantially different temperatures to precipitate volatile organic compounds from said stream of gas, said at least two refrigeration systems causing the precipitation of volatile organic compounds from said stream of gas; collecting the volatile organic compounds; using a portion of exhaust from said internal combustion engine to heat said stream of gas prior to egress from the apparatus; using a portion of exhaust from said internal combustion engine to drive an inert gas generating system prior to egress from the apparatus. 19. The method of claim 18 further including the step of using mechanical output from said internal combustion engine to drive an electric generator. 20. The method of claim 19 further including the step of using said water jacket to drive a third refrigeration system to provide chilled water.

이 특허에 인용된 특허 (4)

이 특허를 인용한 특허 피인용횟수: 9

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Thermal engine driven heat pump for recovery of volatile organic compounds

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이 특허에 인용된 특허 (4)

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Thermal engine driven heat pump for recovery of volatile organic compounds

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이 특허에 인용된 특허 (4)

이 특허를 인용한 특허 피인용횟수: 9

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