Process integration of a Calcium-looping process with a natural gas combined cycle power plant for CO2 capture and its improvement by exhaust gas recirculation

AbstractIn this study, it was sought to find an efficient way to integrate a Ca-looping process with a Natural Gas Combined Cycle (NGCC) power plant for its post-combustion CO2 capture. Compared to its application to coal combustion flue gas, Ca-looping would incur augmented energy penalty when integrated with a NGCC of which the flue gas contains only 4.0mol% CO2. The reduced CO2 concentration in the feed requires the carbonator to operate at a lower temperature and more solids to circulate between carbonator and calciner for keeping up the carbon capture efficiency at 90%. However, this study demonstrated that such negative effects could be alleviated greatly by implementing 40% exhaust gas recirculation to the NGCC with the CO2 concentration in the flue gas increasing up to 6.8%. Accordingly, the resulting net power efficiency increased notably 1.6% points in comparison to its equivalent non-EGR NGCC case and it was only 0.9% points less than amine capture case. This study exhibited that exhaust gas recirculation would be crucial in decarbonising a NGCC power plant by Ca-looping

A parametric study of CO⁠2 capture from gas-fired power plants using monoethanolamine (MEA)

Gas-FACTS EPSRC; CO2QUEST EU FP7 Grant; MESMERISE-CCS EPSR

The Gas Turbine Handbook

Shahrokh Etemad (with Lance Smith, Hasan Karim, and William C. Pfefferle) is a contributing author, Catalytic Combustion”, Section 3.2.2 and Fuel-Rich Catalytic Combustion, Section 3.2.2 . Book description: The NETL Turbine Handbook has been developed to provide technical information regarding the stationary power generation gas turbine, and other turbine based systems that are relevant to the U.S. DOE Fossil Energy (FE) Advanced Turbine Program. To accomplish this task, an outline of potential topics was developed that would form the basis for input to the handbook. The out-line was not comprehensive, but rather intentionally focused on topics relevant to the FE Turbine Program. In formulating an approach to produce this handbook, it also was decided that contributions would be solicited on a voluntary basis. Once the outline was established, it was easy to identify several prominent researchers for each topic who might be interested in writing the particular section. Other prominent individuals were also identified as potential contributors. The staff that was assembled to produce this handbook sent inquiries to allow potential authors the opportunity to reflect on the outline and consider sections that they might have an interest in writing. Potential authors responded to our request, and identified their priority topics. With topics and authors aligned, the real work began for the authors to produce their sections. At the end of this process we had most of the intended sections of the handbook addressed. Authors of handbook sections were provided considerable time to produce their sections, and were encouraged to include as much detail as they deemed appropriate. This approach and lack of constraints is manifested in the handbook, with sections of various lengths, level of detail, approach, and writing style. Sections in many ways reflect the opinions and voices of the authors, and this personal touch is accentuated with photographs, linked biographical sketches, and contact information for the authors. In addition to topical articles, this handbook includes an overview of the FE Advanced Turbine program. The overview includes the DOE Fossil Energy goals that are driving the program, the approach to these goals, and descriptions of the projects that are addressing these goals. The intent was to not only provide a source of information regarding the FE Advanced Turbine pro- gram, but to allow the readers to reference more detailed information on specific or related technologies and approaches being pursued in the program.https://digitalcommons.fairfield.edu/engineering-books/1000/thumbnail.jp