公开(公告)号：US20080104938A1

公开(公告)日：2008-05-08

申请号：US11557250

申请日：2006-11-07

Applicant: MATTHIAS FINKENRATH ,  MICHAEL BARTLETT

Inventor： MATTHIAS FINKENRATH ,  MICHAEL BARTLETT

IPC: B01D53/00 ,  F02C3/00 ,  F02C7/00

CPC classification number: F02C3/02 ,  F01K23/10 ,  F02C3/10 ,  F02C6/18 ,  Y02E20/326

Abstract: A power generation system includes a first turbine system. The first turbine system includes a first compressor section comprising at least two stages. The two stages includes a first low pressure compressor fluidly coupled to a first high pressure compressor configured to supply a first portion of compressed oxidant and a second portion of compressed oxidant A first combustion chamber is configured to combust said first portion of compressed oxidant and a first fuel stream comprising carbon-based fuels and to generate a first hot flue gas. The first turbine system further includes a first expander section having an inlet for receiving said first hot flue gas and generating a first expanded exhaust gas rich in CO2. The first high-pressure expander is fluidly coupled to a first low-pressure expander configured to generate a first exhaust and electrical energy. A CO2 separation system is fluidly coupled to the high-pressure expander for receiving said first expanded exhaust gas from said first high-pressure expander and provide a CO2 lean gas that is then fed to said first low-pressure expander. The power generation system also includes a second turbine system including a second compressor section comprising at least two stages. The two stages includes a second low-pressure compressor fluidly coupled to a second high pressure compressor, wherein said high pressure compressor is configured to receive said second portion of compressed oxidant. A second combustion chamber is configured to combust a second fuel stream comprising carbon-based fuels and to generate a second hot flue gas and a second expander section is configured to receive said second hot flue gas and to generate a second final exhaust and electrical energy. The second compressor section is configured to receive said second final exhaust comprising carbon dioxide and to discharge a recycle stream from said second high pressure compressor to said second combustion chamber and a split stream from said second low-pressure compressor to said first high pressure compressor.

公开(公告)号：US20080104958A1

公开(公告)日：2008-05-08

申请号：US11557243

申请日：2006-11-07

Applicant: MATTHIAS FINKENRATH ,  MICHAEL BARTLETT ,  ARNE LYNGHJEM ,  JON JAKOBSEN

Inventor： MATTHIAS FINKENRATH ,  MICHAEL BARTLETT ,  ARNE LYNGHJEM ,  JON JAKOBSEN

IPC: F02B33/44

CPC classification number: F02C3/34 ,  B01D53/00 ,  B01D2257/504 ,  B01D2258/01 ,  F02C1/08 ,  F02C3/02 ,  F02C3/30 ,  Y02C10/04 ,  Y02C10/06 ,  Y02T10/16

Abstract: Power plants and process for lowering CO2 emissions generally includes extracting a portion of the recirculated CO2-rich flue gas mid-way through the compression pathway of a gas turbine and removing the CO2 in a separation unit. The remaining portion of the CO2 rich flue gas (i.e., the portion of the recirculated flue gas that was not fed to the separation unit) is mixed with fresh air coming from an additional compressor-expander and then fed back to the compression pathway. As a result, flue gas recirculation increases the CO2 concentration within the working fluid, leading to an additional increase in CO2 partial pressure. As the concentration and partial pressure of CO2 is increased, a lower energy penalty is observed to remove the CO2. Moreover, a reduced volume is fed to the CO2 separation unit during operation. Consequently, the size of the separation equipment can be reduced as well as the energy required for the separation process.

Abstract translation: 发电厂和用于降低CO 2排放的方法通常包括通过燃气轮机的压缩路径中途地提取一部分再循环的富CO 2的烟道气，并且除去 分离单元中的CO 2 2。 富CO 2浓烟气的剩余部分（即，未进料到分离单元的再循环烟道气的部分）与来自另外的压缩机 - 膨胀器的新鲜空气混合，然后 反馈到压缩路径。 结果，烟道气再循环增加工作流体内的CO 2浓度，导致CO 2分压的额外增加。 随着CO 2 CO 2的浓度和分压增加，观察到较低的能量损失以去除CO 2。 此外，在操作期间将减小的体积供给到CO 2分离单元。 因此，可以减小分离设备的尺寸以及分离过程所需的能量。

公开(公告)号：US20080104939A1

公开(公告)日：2008-05-08

申请号：US11557254

申请日：2006-11-07

Applicant: STEPHANIE MARIE-NOELLE HOFFMANN ,  MICHAEL BARTLETT

Inventor： STEPHANIE MARIE-NOELLE HOFFMANN ,  MICHAEL BARTLETT

IPC: B01D53/00 ,  F02C3/00 ,  F02C7/00

CPC classification number: F02C3/10 ,  F02C3/02 ,  F02C6/18 ,  Y02E20/16

Abstract: A power generation system includes at least one turbine system. The turbine system includes a compressor section comprising at least one stage, configured to supply a compressed oxidant and a combustion chamber configured to combust the compressed oxidant and a fuel stream comprising carbon-based fuels and to generate a hot flue gas. The turbine system further includes an expander section having an inlet for receiving the hot flue gas comprising at least two stages. The two stages include a high-pressure expander configured to generate an expanded exhaust gas rich in CO2. The high-pressure expander fluidly coupled to a low-pressure expander configured to generate a final exhaust and electrical energy. A CO2 separation system is fluidly coupled to the high-pressure expander for receiving the expanded exhaust gas from the high-pressure expander and providing a CO2 lean gas that is then fed to the low-pressure expander.

Abstract translation: 发电系统包括至少一个涡轮机系统。 涡轮机系统包括包括至少一个级的压缩机部分，其构造成供应压缩的氧化剂和被配置为燃烧压缩的氧化剂的燃烧室和包含碳基燃料的燃料流并产生热的烟道气。 涡轮机系统还包括具有用于接收包括至少两个级的热烟道气的入口的膨胀器部分。 这两个阶段包括构造成产生富CO 2的膨胀废气的高压膨胀器。 流体耦合到低压膨胀器的高压膨胀器被配置成产生最终的排气和电能。 CO 2分离系统流体耦合到高压膨胀器，用于接收来自高压膨胀器的膨胀废气，并提供CO 2稀有气体 供给低压膨胀机。