GB2529587A - Steam power cycle - Google Patents

Steam power cycle Download PDF

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Publication number
GB2529587A
GB2529587A GB1520402.7A GB201520402A GB2529587A GB 2529587 A GB2529587 A GB 2529587A GB 201520402 A GB201520402 A GB 201520402A GB 2529587 A GB2529587 A GB 2529587A
Authority
GB
United Kingdom
Prior art keywords
steam
feedwater
turbine
heat
heat exchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1520402.7A
Other versions
GB2529587B (en
GB201520402D0 (en
Inventor
Frederick Egglestone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AOPC Ltd
Original Assignee
AOPC Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AOPC Ltd filed Critical AOPC Ltd
Publication of GB201520402D0 publication Critical patent/GB201520402D0/en
Publication of GB2529587A publication Critical patent/GB2529587A/en
Application granted granted Critical
Publication of GB2529587B publication Critical patent/GB2529587B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K21/00—Steam engine plants not otherwise provided for
    • F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/40—Use of two or more feed-water heaters in series
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

An environmentally benign steam power cycle (10) facilitates separation and capture of carbon dioxide from its combustion products. In the steam power cycle an oxy-combustion superheater (12) superheats steam (13A) previously evaporated from feedwater (28) in a steam generator (20), the resulting superheated steam and combustion products being used to drive a steam turbine (16) for power generation (18). The feedwater (28) is evaporated, referably raised to at least its critical point, and preferably given some superheat, by regenerative heat exchange in the steam generator, which comprises a heat exchange network (20A, 20B), in which (i) sensible heat is transferred to the feedwater from the exhaust stream of the turbine and (ii) sensible and latent heat is transferred to the feedwater from a plurality of turbine bleed streams (P1, P2, P3), including a turbine bleed stream (P1) taken at about half the critical pressure of steam from just after the highest pressure stage (14,15) of the turbine, and (iii) sensible heat is transferred to the feedwater from condensates of the turbine bleed streams. The feedwater (28) for the steam generator is produced by (i) condensation of steam from the turbine bleed streams (P1, P2, P3) during transfer of their heat of condensation to the feedwater in a plurality of heat exchange stages, and (ii) condensation of steam from the turbine exhaust stream (E) after transfer of its sensible heat to the feedwater in a plurality of heat exchange stages. Carbon dioxide produced in the oxy-combustion process is easily captured (26, 36) when the steam from the turbine exhaust stream and the turbine bleed streams is condensed, thereby leaving most of the carbon dioxide behind as a gas to be extracted from the cycle.
GB1520402.7A 2013-07-08 2014-07-02 Steam power cycle Active GB2529587B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1312232.0A GB201312232D0 (en) 2013-07-08 2013-07-08 Steam powered cycle
PCT/GB2014/051999 WO2015004424A2 (en) 2013-07-08 2014-07-02 Steam power cycle

Publications (3)

Publication Number Publication Date
GB201520402D0 GB201520402D0 (en) 2016-01-06
GB2529587A true GB2529587A (en) 2016-02-24
GB2529587B GB2529587B (en) 2016-06-29

Family

ID=49033495

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1312232.0A Ceased GB201312232D0 (en) 2013-07-08 2013-07-08 Steam powered cycle
GB1520402.7A Active GB2529587B (en) 2013-07-08 2014-07-02 Steam power cycle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1312232.0A Ceased GB201312232D0 (en) 2013-07-08 2013-07-08 Steam powered cycle

Country Status (2)

Country Link
GB (2) GB201312232D0 (en)
WO (1) WO2015004424A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113468736B (en) * 2021-06-25 2024-06-25 万华化学集团股份有限公司 Method and device for determining operation scheme of steam system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001090548A1 (en) * 2000-05-12 2001-11-29 Clean Energy Systems, Inc. Semi-closed brayton cycle gas turbine power systems
WO2003069131A1 (en) * 2002-02-15 2003-08-21 L'air Liquide- Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L' Exploitation Des Procedes Georges Claude Optimized power generation system comprising an oxygen-fired comubustor integrated with an air separation unit
US20040050067A1 (en) * 2002-09-12 2004-03-18 The Boeing Company Low-emission, staged-combustion power generation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001090548A1 (en) * 2000-05-12 2001-11-29 Clean Energy Systems, Inc. Semi-closed brayton cycle gas turbine power systems
WO2003069131A1 (en) * 2002-02-15 2003-08-21 L'air Liquide- Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L' Exploitation Des Procedes Georges Claude Optimized power generation system comprising an oxygen-fired comubustor integrated with an air separation unit
US20040050067A1 (en) * 2002-09-12 2004-03-18 The Boeing Company Low-emission, staged-combustion power generation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STERNFELD H. J.: "WASSERSTOFF/SAUERSTOFF-DAMPFERZEUGER IN DER ENERGIETECHNIK.", VDI BERICHTE, V D I VERLAG GMBH, DE, 1 March 1987 (1987-03-01), DE, pages 231 - 247., XP002047184, ISSN: 0083-5560 *

Also Published As

Publication number Publication date
GB2529587B (en) 2016-06-29
GB201312232D0 (en) 2013-08-21
WO2015004424A3 (en) 2015-05-21
GB201520402D0 (en) 2016-01-06
WO2015004424A2 (en) 2015-01-15

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