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US6233914B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Method of an apparatus for producing power having a solar reformer and a steam generator which generate fuel for a power plant

Assignee: Ormat Technologies Inc
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Filing: 1997-07-31
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Granted: 2001-05-22
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Expires: 2017-07-31
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Abstract

Abstract According to the present invention, a method and apparatus are provided for producing power from a hydrocarbon fuel and water vapor heated in a solar reformer to form hydrogen and carbon monoxide. The method provides the following steps: supplying the hydrogen and carbon monoxide from the solar reformer to a steam generator for producing steam and heat depleted hydrogen and carbon monoxide; supplying exhaust gases from the exhaust of a gas turbine to the steam generator; supplying the steam to a superheater for producing superheated steam; supplying the heat depleted hydrogen and carbon monoxide from the steam generator to a preheater for preheating the hydrocarbon fuel prior to supplying the hydrocarbon fuel to the solar reformer and producing preheated hydrocarbon fuel and further heat depleted hydrogen and carbon monoxide; adding the superheated steam to the preheated hydrocarbon fuel prior to supplying the preheated hydrocarbon fuel to the solar reformer; and supplying the further heat depleted hydrogen and carbon monoxide to a Rankine cycle power plant for producing power and cooled and dried hydrogen and carbon monoxide. In addition, the present invention includes providing apparatus for carrying the above-mentioned method steps of the present invention.

Inventors

  • 👤 Uriyel Fisher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:25
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; Y; Y02; Y02E; Y02E20/00; Y02E20/16; Y02P; Y02P20/00; Y02P20/10; Y02P20/129; Y02P20/133

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 155 words
A method for producing power from a hydrocarbon fuel and water vapor heated in a solar reformer to form hydrogen and carbon monoxide comprising the steps of: a. using the hydrogen and carbon monoxide from said solar reformer and exhaust gases from the exhaust of a gas turbine to generate steam that is superheated and producing heat depleted hydrogen and carbon monoxide; b. supplying said heat depleted hydrogen and carbon monoxide from said steam generator to a preheater for preheating said hydrocarbon fuel prior to supplying the hydrocarbon fuel to said solar reformer and producing preheated hydrocarbon fuel and further heat depleted hydrogen and carbon monoxide; c. adding said superheated steam to said preheated hydrocarbon fuel prior to supplying said preheated hydrocarbon fuel to said solar reformer; and d. supplying said further heat depleted hydrogen and carbon monoxide to a Rankine cycle power plant for producing power and cooled and dried hydrogen and carbon monoxide.
Claim 2
Independent Claim 155 words
A method for producing power from a hydrocarbon fuel and water vapor heated in a solar reformer to form hydrogen and carbon monoxide comprising the steps of: a. using the hydrogen and carbon monoxide from said solar reformer and exhaust gases from the exhaust of a gas turbine to generate steam that is superheated and producing heat depleted hydrogen and carbon monoxide; b. supplying said heat depleted hydrogen and carbon monoxide from said steam generator to a preheater for preheating said hydrocarbon fuel prior to supplying the hydrocarbon fuel to said solar reformer and producing preheated hydrocarbon fuel and further heat depleted hydrogen and carbon monoxide; c. adding said superheated steam to said preheated hydrocarbon fuel prior to supplying said preheated hydrocarbon fuel to said solar reformer; and d. supplying said further heat depleted hydrogen and carbon monoxide to a Rankine cycle power plant for producing power and cooled and dried hydrogen and carbon monoxide.
Claim 3
Dependent Claim 41 words
A method according to claim 1 including supplying said cooled and dried hydrocarbon and carbon monoxide to a separator for separating water vapor condensate from said cooled and dried hydrogen and carbon monoxide and producing further dried hydrogen and carbon monoxide.
Claim 4
Dependent Claim 25 words
A method according to claim 2 including supplying said further dried hydrogen and carbon monoxide to a compressor for producing compressed hydrogen and carbon monoxide.
Claim 5
Dependent Claim 22 words
A method according to claim 3 including supplying said compressed hydrogen and carbon monoxide to the combustion chamber of said gas turbine.
Claim 6
Dependent Claim 49 words
A method according to claim 1 wherein the step of supplying said further heat depleted hydrogen and carbon monoxide to a Rankine cycle power plant for producing power is carried out by supplying said further heat depleted hydrogen and carbon monoxide to a power plant having a steam turbine.
Claim 7
Dependent Claim 50 words
A method according to claim 1 wherein the step of supplying said further heat depleted hydrogen and carbon monoxide to a Rankine cycle power plant for producing power is carried out by supplying said further heat depleted hydrogen and carbon monoxide to a power plant having an organic vapor turbine.
Claim 8
Dependent Claim 69 words
A method according to claim 5 wherein the step of supplying said further heat depleted hydrogen and carbon monoxide to a power plant having a steam turbine is carried out by supplying further heat depleted hydrogen and carbon monoxide to a condenser for condensing water vapor present together with said further heat depleted hydrogen and carbon monoxide containing water for producing dried hydrogen and carbon monoxide and preheated water.
Claim 9
Dependent Claim 61 words
A method according to claim 7 including: a. supplying said preheated water to working fluid vaporizer for producing steam using heat contained in a portion of said exhaust gases; b. supplying said steam to a turbine for producing power and from which expanded steam is extracted; and c. supplying said expanded steam to a working fluid condenser for producing steam condensate.
Claim 10
Dependent Claim 72 words
A method according to claim 6 wherein the step of supplying said further heat depleted hydrogen and carbon monoxide to a power plant having an organic vapor turbine is carried out by supplying further heat depleted hydrogen and carbon monoxide to a condenser for condensing water vapor present together with said further heat depleted hydrogen and carbon monoxide containing water for producing dried hydrogen and carbon monoxide and preheated organic working fluid.
Claim 11
Dependent Claim 78 words
A method according to claim 9 including: a. supplying said preheated organic working fluid to organic working fluid vaporizer for producing organic working fluid vapor using heat contained in a portion of said exhaust gases; b. supplying said organic working fluid vapor to a turbine for producing power and from which expanded organic working fluid vapor is extracted; and c. supplying said expanded organic working fluid vapor to a working fluid condenser for producing organic working fluid condensate.
Claim 12
Dependent Claim 161 words
Apparatus for producing power from a hydrocarbon fuel and water vapor heated in a solar reformer to form hydrogen and carbon monoxide comprising: a. a steam generator system for producing steam that is superheated and heat depleted hydrogen and carbon monoxide from hydrogen and carbon monoxide supplied from said solar reformer and exhaust gases from the exhaust of a gas turbine; b. a preheater for preheating said hydrocarbon fuel prior to supplying the hydrocarbon fuel to said solar reformer and producing preheated hydrocarbon fuel and further heat depleted hydrogen and carbon monoxide from said heat depleted hydrogen and carbon monoxide supplied from said steam generator so that said superheated steam produced by said steam generator system is added to said preheated hydrocarbon fuel prior to supplying said preheated hydrocarbon fuel to said solar reformer; and c. a Rankine cycle power plant for producing power and cooled and dried hydrogen and carbon monoxide from said further heat depleted hydrogen and carbon monoxide.
Claim 13
Dependent Claim 161 words
Apparatus for producing power from a hydrocarbon fuel and water vapor heated in a solar reformer to form hydrogen and carbon monoxide comprising: a. a steam generator system for producing steam that is superheated and heat depleted hydrogen and carbon monoxide from hydrogen and carbon monoxide supplied from said solar reformer and exhaust gases from the exhaust of a gas turbine; b. a preheater for preheating said hydrocarbon fuel prior to supplying the hydrocarbon fuel to said solar reformer and producing preheated hydrocarbon fuel and further heat depleted hydrogen and carbon monoxide from said heat depleted hydrogen and carbon monoxide supplied from said steam generator so that said superheated steam produced by said steam generator system is added to said preheated hydrocarbon fuel prior to supplying said preheated hydrocarbon fuel to said solar reformer; and c. a Rankine cycle power plant for producing power and cooled and dried hydrogen and carbon monoxide from said further heat depleted hydrogen and carbon monoxide.
Claim 14
Dependent Claim 42 words
Apparatus according to claim 11 including a separator for separating water vapor condensate from said cooled and dried hydrogen and carbon monoxide and producing further dried hydrogen and carbon monoxide from said cooled and dried hydrocarbon and carbon monoxide to a separator.
Claim 15
Dependent Claim 23 words
Apparatus according to claim 12 including a compressor for producing compressed hydrogen and carbon monoxide from said further dried hydrogen and carbon monoxide.
Claim 16
Dependent Claim 23 words
Apparatus according to claim 13 including means for supplying said compressed hydrogen and carbon monoxide to the combustion chamber of said gas turbine.
Claim 17
Dependent Claim 22 words
Apparatus according to claim 11 wherein said Rankine cycle power plant for producing power comprises a power plant having a steam turbine.
Claim 18
Dependent Claim 23 words
Apparatus according to claim 11 wherein said Rankine cycle power plant for producing power comprises a power plant having an organic vapor turbine.
Claim 19
Dependent Claim 47 words
Apparatus according to claim 15 wherein power plant includes a condenser for condensing water vapor present together with said further heat depleted hydrogen and carbon monoxide containing water for producing dried hydrogen and carbon monoxide and preheated water from said further heat depleted hydrogen and carbon monoxide.
Claim 20
Dependent Claim 54 words
Apparatus according to claim 17 including: a. a vaporizer for producing steam from said preheated water using heat contained in a portion of said exhaust gases; b. a steam turbine for producing power and from which expanded steam is extracted; and c. a working fluid condenser for producing steam condensate from said expanded steam.
Claim 21
Dependent Claim 49 words
Apparatus according to claim 16 wherein power plant includes a condenser for condensing water vapor present together with said further heat depleted hydrogen and carbon monoxide containing water for producing dried hydrogen and carbon monoxide and preheated organic working fluid from said further heat depleted hydrogen and carbon monoxide.
Claim 22
Dependent Claim 67 words
Apparatus according to claim 19 including: a. a vaporizer for producing organic working fluid vapor from said preheated organic working fluid using heat contained in a portion of said exhaust gases; b. an organic vapor turbine for producing power and from which expanded organic vapor is extracted; and c. a working fluid condenser for producing organic working fluid condensate from said expanded organic working fluid vapor steam.

References Cited (Backward Citations)

US3462948A Cited
US4799357A Cited
US5669216A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2004-05-21 2004-11-20 2005-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-05-21 2008-11-20 2009-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-05-21 2012-11-20 2013-05-22 $7700.00 Window Closed / Lapsed

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