IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0060239
(2002-02-01)
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발명자
/ 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
43 인용 특허 :
7 |
초록
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A gas turbine which is capable of operating in more than one pressure mode. The gas turbine, which may include a single fixed spool, multiple fixed spools, or a combination of fixed spool(s) and a free turbine, can operate in a positive pressure mode, a transatmospheric mode, or a subatmospheric mod
A gas turbine which is capable of operating in more than one pressure mode. The gas turbine, which may include a single fixed spool, multiple fixed spools, or a combination of fixed spool(s) and a free turbine, can operate in a positive pressure mode, a transatmospheric mode, or a subatmospheric mode. Valving is provided to control the particular pressure mode of operation in response to system requirements and to switch between pressure modes as required. The gas turbine is particularly useful with a catalytic combustor where the gas turbine can be started in a mode where the catalytic combustor, and its associated preheater, is at or below atmospheric pressure.
대표청구항
▼
A gas turbine which is capable of operating in more than one pressure mode. The gas turbine, which may include a single fixed spool, multiple fixed spools, or a combination of fixed spool(s) and a free turbine, can operate in a positive pressure mode, a transatmospheric mode, or a subatmospheric mod
A gas turbine which is capable of operating in more than one pressure mode. The gas turbine, which may include a single fixed spool, multiple fixed spools, or a combination of fixed spool(s) and a free turbine, can operate in a positive pressure mode, a transatmospheric mode, or a subatmospheric mode. Valving is provided to control the particular pressure mode of operation in response to system requirements and to switch between pressure modes as required. The gas turbine is particularly useful with a catalytic combustor where the gas turbine can be started in a mode where the catalytic combustor, and its associated preheater, is at or below atmospheric pressure. , Zn, Ag, Ce, Ga, or a mixture of two or more thereof. 14. The process of claim 13 wherein said catalyst is Pt, Pd, Rh, Ir, or a mixture of two or more thereof. 15. The process of claim 1 wherein said oxidation catalyst is housed in an in-line converter or a converter muffler. 16. A process for reducing the level of pollutants in the exhaust of a diesel engine, comprising: operating said diesel engine using as the fuel a water-diesel fuel emulsion, the water-diesel fuel emulsion comprising water, diesel fuel and an emulsifier, the emulsifier comprising: (i)(a) a first fuel-soluble product made by reacting a first hydrocarbyl substituted carboxylic acid acylating agent with ammonia or an amine, the hydrocarbyl substituent of said first acylating agent having about 50 to about 500 carbon atoms; and (i)(b) a second fuel-soluble product made by reacting a second hydrocarbyl substituted carboxylic acid acylating agent with ammonia or an amine, the hydrocarbyl substituent of said second acylating agent having about 50 to about 500 carbon atoms, component (i)(a) being different than component (i)(b); or (ii) an ionic or a nonionic compound having a hydrophilic-lipophilic balance of about 1 to about 10; or a mixture of (i)(a), (i)(b) and (ii); in combination with (iii) an emulsion stabilizing amount of a water-soluble compound selected from the group consisting of amine salts, ammonium salts, azide compounds, nitro compounds, alkali metal salts, alkaline earth metal salts, and mixtures of two or more thereof; and contacting the exhaust from said diesel engine with an oxidation catalyst. 17. The process of claim 16 wherein component (i)(a) is a first fuel-soluble product made by reacting a first polyisobutene substituted succinic anhydride.with an alkanol amine or an alkylene polyamine, the polyisobutene substituent of said first polyisobutene substituted succinic anhydride having a number average molecular weight of about 1500 to about 3000, said first polyisobutene substituted succinic anhydride being characterized at least about 1.3 succinic groups per equivalent weight of the polyisobutene substituent; and component (i)(b) is a second fuel-soluble product made by reacting a second polyisobutene substituted succinic anhydride with an alkanol amine or an alkylene polyamine, the polyisobutene substituent of said second polyisobutene substituted succinic anhydride having a number average molecular weight of about 700 to about 1300, said second polyisobutene substituted succinic anhydride being characterized by about 1.0 to about 1.3 succinic groups per equivalent weight of the polyisobutene substituent. 18. A process for reducing the level of pollutants in the exhaust of a diesel engine, comprising: operating said diesel engine using as the fuel a water-diesel fuel emulsion, the water-diesel fuel emulsion comprising water, diesel fuel and an emulsifier, the emulsifier comprising (i) a fuel-soluble product comprising: a first hydrocarbyl substituted carboxylic acid acylating agent, the hydrocarbyl substituent of said first acylating agent having about 50 to about 500 carbon atoms; and a second hydrocarbyl substituted carboxylic acid acylating agent, the hydrocarbyl substituent of said second acylating agent having about 50 to about 500 carbon atoms, said first acylating agent and said second acylating agent being the same or different; said first acylating agent and said second acylating agent being coupled together by a linking group derived from a compound having two or more primary amino groups, two or more secondary amino groups, at least one primary amino group and at least one secondary amino group, at least two hydroxyl groups, or at least one primary or secondary amino group and at least one hydroxyl group; said coupled acylating agents being reacted with ammonia or an amine; or (ii) an ionic or a nonionic compound having a hydrophilic-lipophilic balance of about 1 to about 10; or a mixture of (i)
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