Systems for prevention of HAP emissions and for efficient drying/dehydration processes
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F26B-011/02
출원번호
US-0607481
(2009-10-28)
등록번호
US-8156662
(2012-04-17)
발명자
/ 주소
Carin, Christianne
Gorbell, Brian N.
Carin, legal representative, Christianne
Fedkenheuer, Alvin W.
Jonasson, John S.
Starosud, Alexander
출원인 / 주소
Earthrenew, Inc.
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
3인용 특허 :
398
초록▼
This invention discloses systems, apparatuses and methods for drying or dehydrating high moisture content feedstock to dry or low moisture products. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel and a processing unit, wherein the connection betwe
This invention discloses systems, apparatuses and methods for drying or dehydrating high moisture content feedstock to dry or low moisture products. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel and a processing unit, wherein the connection between the gas turbine and the dryer vessel directs substantially all the gas turbine exhaust into the dryer vessel and substantially precludes the introduction of air into the dryer vessel and wherein the processing unit forms the dried material from the dryer vessel into granules, pellets, flakes or other desired form for the final product. The systems, apparatuses and methods of this invention also provide for prevention of release of HAP, including VOC, emissions from manufacturing facilities in conjunction with or independent of the above treatment of high water content feedstock.
대표청구항▼
1. A method for treatment of high water content feedstock in a manufacturing facility comprising: operating a gas turbine producing exhaust gases;contacting the exhaust gases with high water content feedstock for a contact time sufficient to produce a dried material having a moisture content less th
1. A method for treatment of high water content feedstock in a manufacturing facility comprising: operating a gas turbine producing exhaust gases;contacting the exhaust gases with high water content feedstock for a contact time sufficient to produce a dried material having a moisture content less than the feedstock, wherein contact between the exhaust gases and the high water content feedstock does not cause significant oxidation of the high water content feedstock; anddirecting HAP emissions produced in the manufacturing facility into the combustion air intake of the gas turbine, wherein the HAP emissions are from a different source than those produced by processing of the high water content feedstock. 2. A method according to claim 1, further comprising using the gas turbine to generate electricity. 3. A method according to claim 1, wherein the exhaust gases of the gas turbine directly contact the high water content feedstock. 4. A method according to claim 3, wherein at least one of NOx, SOx, and COx gases present in the exhaust gases of the gas turbine are absorbed directly into the high water content feedstock during drying of the high water content feedstock. 5. A method according to claim 1, wherein the exhaust gases do not pass through an intermediate heat exchanger as the exhaust gases flow from the gas turbine to the high water content feedstock. 6. A method according to claim 1, wherein the exhaust gases contacting the high water content feedstock have a temperature greater than 700° F. 7. A method according to claim 1, wherein contact between the exhaust gases and the high water content feedstock does not cause substantial pyrolysis of the high water content feedstock. 8. A method according to claim 1, wherein contact between the exhaust gases and the high water content feedstock takes place in a dryer vessel. 9. A method according to claim 8, wherein the dryer vessel is connected to the gas turbine so as to substantially preclude the introduction of outside air into the dryer vessel when the exhaust gases are contacted with the high water content feedstock. 10. A method according to claim 8, wherein the dryer vessel is a rotary dryer vessel. 11. A method according to claim 8, wherein a temperature in the dryer vessel is at least 700° F. 12. A method according to claim 8, wherein the dried material and the exhaust gases exit the dryer vessel through a common outlet. 13. A method according to claim 12, wherein a dryer outlet conduit conveys the dried material and the exhaust gases from the common outlet of the dryer vessel to a solids/gas separator, wherein a blower draws the exhaust gases from the solids/gas separator and directs the exhaust gases to atmosphere, and wherein the blower reduces backpressure in the dryer vessel via the dryer outlet conduit. 14. A method according to claim 1, wherein the dried material includes fertilizer or soil builder. 15. A method according to claim 1, wherein the high water content feedstock has a moisture content of at least about 30% by weight before being contacted by the exhaust gases. 16. A method according to claim 15, wherein the high water content feedstock has a moisture content of at least about 50% by weight before being contacted by the exhaust gases. 17. A method according to claim 1, wherein the dried material has a moisture content less than about 20% by weight. 18. A method according to claim 17, wherein the dried material has a moisture content less than about 15% by weight. 19. A method for treatment of high water content feedstock in a manufacturing facility comprising: operating a gas turbine producing exhaust gases;contacting the exhaust gases with high water content feedstock for a contact time sufficient to produce a dried material having a moisture content less than the feedstock; anddirecting HAP emissions produced in the manufacturing facility into the combustion air intake of the gas turbine, wherein the HAP emissions are from a different source than those produced by processing of the high water content feedstock;wherein contact between the exhaust gases and the high water content feedstock takes place in a dryer vessel and the dried material and the exhaust gases exit the dryer vessel through a common outlet, wherein a dryer outlet conduit conveys the dried material and the exhaust gases from the common outlet of the dryer vessel to a solids/gas separator, wherein a blower draws the exhaust gases from the solids/gas separator and directs the exhaust gases to atmosphere, and wherein the blower reduces backpressure in the dryer vessel via the dryer outlet conduit.
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