序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Integrated coal gasification combined cycle facility US12452352 2008-11-06 US08615981B2 2013-12-31 Takashi Yamamoto; Katsuhiro Ota; Hiromi Ishii; Yoshinori Koyama; Kimishiro Tokuda; Isao Mochida; Tatsuro Harada
An integrated coal gasification combined cycle facility is provided that can prevent a reduction in power generation efficiency even when low-grade coal having a relatively-high moisture content is used. Included are: a gasification section that gasifies supplied coal; a gas power generation section that generates power by using gas supplied from the gasification section; a steam power generation section that generates power by using the heat of exhaust gas discharged from the gas power generation section; and a coal drying unit that dries the coal by using exhaust heat discharged from the steam power generation section and that supplies the dried coal to the gasification section.
162 LOW-RANK COAL PROCESSING APPARATUS AND METHOD US13989980 2011-11-25 US20130305972A1 2013-11-21 Chao Hui Chen; Michael John Smith
An apparatus for the simultaneous drying and transport of low-rank coal is described. The apparatus has a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface; a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel; a transport gas supply to supply transport gas to an inlet of the first flow channel; a heating apparatus to apply heat to an outer wall surface of the first pipe along at least part of the length thereof for example in the form of a drying fluid supply to supply a drying fluid, configured such that a drying fluid is brought into contact with the outer wall surface of the first pipe along at least part of the length thereof. A system of design of thermal power plant incorporating such an apparatus is also described. A method for the simultaneous drying and transport of low-rank coal is also described. A system and method for supplying dried low-rank coal for combustion are also described.
163 Method Of Operating An Oxycombustion CFB Boiler US13996663 2012-02-01 US20130284121A1 2013-10-31 Reijo Kuivalainen; Timo Eriksson; Arto Hotta
A method of operating an oxycombustion circulating fluidized bed (CFB) boiler that includes a furnace having a grid at its bottom section, a solid material separator connected to an upper part of the furnace, and an external solid material handling system. An oxidant gas is introduced into the CFB boiler through the grid as fluidizing gas, the fluidizing gas including recirculating flue gas. Fuel material is introduced into the circulating fluidized bed. A sulfur reducing agent including CaCO3 is introduced into the circulating fluidized bed. Solid material is circulated out of the furnace and provides an external circulation of solid material via the external solid material handling system. The solid material is fluidized in the external solid material handling system by introducing a fluidizing medium including recirculating the gas into tire external solid material handling system. A predetermined amount of steam is introduced into the external solid material handling system as a component of the fluidizing medium.
164 STEAM INJECTION ASSEMBLY FOR A COMBINED CYCLE SYSTEM US13365580 2012-02-03 US20130199150A1 2013-08-08 Jianmin Zhang; Kihyung Kim; Brad Aaron Kippel; Hua Zhang
A steam injection assembly for a combined cycle system includes a heat recovery system having at least one superheater configured to generate a steam supply. Also included is a gas turbine system having an inlet and a compressor, wherein the inlet receives an air supply and the steam supply for combined injection into the compressor.
165 Carbon-dioxide-capture-type steam power generation system US12553317 2009-09-03 US08347627B2 2013-01-08 Katsuya Yamashita; Asako Inomata; Yukio Oohashi; Takashi Ogawa; Kazutaka Ikeda; Takeo Suga
A carbon-dioxide-capture-type steam power generation system 1 according to the present invention comprises a boiler 6 producing an exhaust gas 5 by combusting a fuel 2 and having a flue 8; an absorbing unit 40 being configured to absorb the carbon-dioxide contained in the exhaust gas 5 into an absorbing solution; and a regenerating unit 44 being configured to release the carbon dioxide gas from the absorbing solution absorbing the carbon dioxide and discharge the released carbon dioxide gas. Further, in this system, a reboiler 49 is provided for receiving a heating-medium as heat source, producing a steam 43 and supplying the produced steam 43 to the regenerating unit 44. Additionally, in the flue 8 of the boiler 6, a boiler-side heat exchanger 61 is provided for heating the heating-medium by the exhaust gas 5 passing therethrough.
166 PROCESS AND PLANT FOR COOLING SULFURIC ACID US13575993 2011-01-11 US20130000869A1 2013-01-03 Karl-Heinz Daum; Wolfram Schalk
A process for cooling an acid that is withdrawn from an absorption apparatus of a sulfuric acid plant includes pumping the acid to be cooled from an acid pump tank and supplying the acid to a shell space of a heat exchanger. Water is supplied as a heat transport medium to heat transfer elements disposed in the shell space so as to at least partially convert, by heat transfer from the acid, the water to steam. The acid which was cooled in the heat exchanger is supplied back to the absorption apparatus. The water is separated from the steam in a steam drum. The separated water is recirculated to the heat exchanger using a pump.
167 CONVERSION OF HYDROCARBONS TO CARBON DIOXIDE AND ELECTRICAL POWER US13518276 2010-11-30 US20130000320A1 2013-01-03 Mark McKenna; Peter Edward James Abbott; Peter William Farnell
A process for the conversion of a hydrocarbon to CO2 and electrical power is described which includes subjecting a gas mixture of a hydrocarbon feed stream and steam to an integrated reforming process including stages of steam reforming in a gas-heated reformer and secondary reforming to generate a reformed gas mixture, increasing the hydrogen content of the reformed gas mixture by subjecting it to one or more water-gas-shift stages, cooling the resulting hydrogen-enriched reformed gas and separating condensed water therefrom, passing the resulting de-watered hydrogen-enriched reformed gas to one or more stages of carbon dioxide separation to recover carbon dioxide, combusting the remaining hydrogen-containing fuel stream with an oxygen containing gas in a gas turbine to generate electrical power and passing the exhaust gas mixture from the gas turbine to a heat recovery steam generation system that feeds one or more steam turbines to generate additional electrical power.
168 SYSTEM FOR RECOVERING WASTE HEAT US13514857 2010-11-30 US20120267076A1 2012-10-25 Hojin Yang; Kidon Won; Juntae Kim; Doojin Lee; Soo Hyun Park
Provided is a system for recovering waste heat discharged from distillation columns, incinerators, blast columns, smelting columns, and the like at relatively low temperatures to produce hot water in high efficiency, which can be used in various industrial fields. The investment and operating costs of the waste heat recovery system are relatively low as compared with the conventional systems.
169 System for Heating a Primary Air Stream US13322390 2010-05-26 US20120160188A1 2012-06-28 Chao Hui Chen; Meng Li; Michael Smith
A system for heating a primary air stream in a steam generating process comprising at least one primary air heat exchanger to exchange heat between the primary air stream in the primary air heat exchanger(s) and a process fluid.
170 CARBON DIOXIDE RECOVERY METHOD AND CARBON-DIOXIDE-RECOVERY-TYPE STEAM POWER GENERATION SYSTEM US13279044 2011-10-21 US20120096865A1 2012-04-26 Yuya MURAKAMI; Nobuo OKITA; Takeo TAKAHASHI; Mikio TAKAYANAGI; Takeo SUGA; Takeshi SASANUMA; Toshihisa KIYOKUNI; Hideo KITAMURA
According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that produces steam and generates an exhaust gas, a first turbine that is rotationally driven by the steam, an absorption tower allows carbon dioxide contained in the exhaust gas to be absorbed into an absorption liquid, a regeneration tower that discharges the carbon dioxide gas from the absorption liquid supplied from the absorption tower, a condenser that removes moisture from the carbon dioxide gas, discharged from the regeneration tower, by condensing the carbon dioxide gas using cooling water, a compressor that compresses the carbon dioxide gas from which the moisture is removed by the condenser, and a second turbine that drives the compressor. The steam produced by the cooling water recovering the heat from the carbon dioxide gas in the condenser is supplied to the first turbine or the second turbine.
171 GAS TURBINE ENGINE WITH EXHAUST RANKINE CYCLE US13215026 2011-08-22 US20120042656A1 2012-02-23 Frank Wegner Donnelly; David William Dewis; John D. Watson
A closed-loop organic Rankine cycle apparatus to extract waste heat from the exhaust gas from a gas turbine engine is disclosed wherein the closed loop includes at least one additional heat exchanger. An additional heat exchanger for heating fuel may be in one of three locations relative to the ORC turbine and condensing heat exchanger. One location is a preferred location for adding heat to all fuels (liquid, gaseous and/or cryogenic). Another location is a practical location for adding heat to very cold or cryogenic fuels such as CNG or LNG. The closed-loop organic Rankine cycle apparatus, besides extracting waste heat from the exhaust gases, may also include an additional heat exchanger to recover heat from a compressor on a gas turbine engine prior to entering an intercooler on a gas turbine engine.In another embodiment, the exhaust stream can be directed, in selected proportions, to a closed organic Rankine cycle, a heat exchanger for pre-heating fuel or directly out an exhaust stack.
172 HEAT ENGINE WITH REGENERATOR AND TIMED GAS EXCHANGE US13255468 2010-03-12 US20110314805A1 2011-12-29 Joseph B. Seale; Gary Bergstrom
A Stirling-like system incorporating a heater, a displacer and a regenerator is intermittently coupled to an external system via valves, providing pneumatic power while ridding waste heat. The external system is commonly a Rankine cycle, sharing the working fluid of the Stirling-like system, and can be used for heat pumping, distillation and drying. The Stirling working fluid and the Rankine working fluid are the same material and are exchanged between the two systems. A dual Stirling-like system mates a heat engine with a heat pump, sharing the same pressure-containment, with the dual system intermittently coupled to external environments for convective exchange of heat and cold.
173 PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH FLUIDIZED-BED DRYING US13040016 2011-03-03 US20110220744A1 2011-09-15 Xu Zhao; Maikui Zhang; Yan Dou; Yongzhong Jiang; Jinwen Shi
The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.
174 PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH STEAM PIPING DRYING US13039707 2011-03-03 US20110214427A1 2011-09-08 Xu Zhao; Maikui Zhang; Yan Dou; Yongzhong Jiang; Jinwen Shi
The present invention relates to a process for reducing coal consumption in coal fired power plant with steam-piping drying, namely a steam-piping drying system is provided between a coal grinding mill and a coal powder bunker as well as a weighing belt of the prior coal fired boiler generating set, and superheated steam which have done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.
175 STEAM TURBINE POWER PLANT AND OPERATION METHOD THEREOF US12787176 2010-05-25 US20100326074A1 2010-12-30 Nobuo OKITA; Yasunori Matsuura; Nobuhiko Hattori
According to one aspect of the embodiment, a steam turbine power plant 10 is provided with a steam turbine system 20 which generates electricity by driving a steam turbine by the steam from a boiler 21 or the like which generates the steam by combustion heat, and a carbon dioxide recovery system 50 which recovers carbon dioxide contained in the combustion gas from the boiler 21 or the like. In the steam turbine system 20, part of the steam having performed the expansion work in a high-pressure turbine 22 is introduced into a back-pressure turbine 27. The steam introduced into the back-pressure turbine 27 performs the expansion work and partly supplied to the carbon dioxide recovery system 50 through a pipe 42 to heat an absorption liquid 90 in a regeneration tower 70.
176 Heat Engine System US12438945 2007-08-24 US20100287934A1 2010-11-18 Patrick Joseph Glynn; Colin Buckland
A heat engine system for producing work by expanding a working fluid comprising first and second components, the system comprising, an apparatus for combining the second component of the working fluid as a liquid with the first component, the first component being a gas throughout the system, a compressor for compressing the first component, a pump for compressing at least most of the second component, a heater for heating the first and second components, an expander for expanding the first and second components to produce the work, and a recuperator for transferring at least some of the energy of the working fluid from the outlet of the expander, to the working fluid from the outlet of the apparatus, wherein a substantial portion of the energy transferred in the recuperator is at least a portion of the latent heat of the second component from the outlet of the expander.
177 Multi-process method of combined heat and power generation, biodiesel production, ethanol production, town gas production, methane production, and syngas production US12657531 2010-01-22 US20100187822A1 2010-07-29 William D. Bivins
The present invention relates to an energy efficient method of combined heat and power/combined-cycle electricity generation method and gasification method utilizing a multi-process method of producing, methane, biodiesel, and ethanol production. The waste heat from the combined heat and power generation/combined-cycle method and gasification method is utilized by these multiple methods in such a manner that the waste heat of each successive method serves directly as the heat reservoir for the succeeding method before it is reclaimed at the back-end of the combined-cycle method.
178 Liquid and Solid Biofueled Combined Heat and Renewable Power Plants US12183141 2008-07-31 US20090031698A1 2009-02-05 Terry L. Brown; George J. Mezey
The present invention relates generally to power plants, and, more particularly, to liquid and solid biofueled power plants that make renewable energy and utilize waste heat for a variety of applications including waste treatment plant processes, biofuel treatment and processing (e.g., sludge drying), fish farms, green houses, and the like.
179 Method for producing dried particulate coal fuel and electricity from a low rank particulate coal US541560 1990-06-21 US5137539A 1992-08-11 Chester M. Bowling
A method for producing dried particulate coal fuel and electricity from a low rank particulate coal in a combined process.
180 Apparatus and process for generating steam from wet fuel US402076 1989-09-01 US4930429A 1990-06-05 Rolf Ryham
A process and apparatus for the gasification of partially dried fuel with hot gas which has been heated by bringing it into contact with an inert hot heat carrier. The fuel gases generated during the gasification process are further combusted and utilized for heating the inert heat carrier. The process and apparatus can be combined with a process and apparatus for generating steam from wet fuel wherein water is evaporated from the wet fuel by bringing the fuel into direct contact with superheated steam. The steam is superheated by bringing it into contact with a second hot heat carrier. The second heat carrier is heated by bringing it into direct contact with the fuel gas produced by combusting the fuel gas from the gasification process.
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