scholarly journals Optimization of Integrated Gasification Combined-Cycle Power Plant for Polygeneration of Power and Chemicals

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7285
Author(s):  
Ammar Bany Ata ◽  
Peter Maximilian Seufert ◽  
Christian Heinze ◽  
Falah Alobaid ◽  
Bernd Epple

Efficient and flexible operation is essential for competitiveness in the energy market. However, the CO2 emissions of conventional power plants have become an increasingly significant environmental dilemma. In this study, the optimization of a steam power process of an IGCC was carried out, which improved the overall performance of the plant. CCPP with a subcritical HRSG was modelled using EBSILON Professional. The numerical results of the model were validated by measurements for three different load cases (100, 80, and 60%). The results are in agreement with the measured data, with deviations of less than 5% for each case. Based on the model validation, the model was modified for the use of syngas as feed and the integration of heat into an IGCC process. The integration was optimized with respect to the performance of the CCPP by varying the extraction points, adjusting the steam parameters of the extractions and modifying the steam cycle. For the 100% load case, a steam turbine power achieved increase of +34.2%. Finally, the optimized model was subjected to a sensitivity analysis to investigate the effects of varying the extraction mass flows on the output.

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Hashmi SAM ◽  

The main idea of this research paper is to provide an innovative way of capturing carbon dioxide emissions from a coal powered power plant. This research paper discusses the design and modeling of a carbon capturing membrane which is being used in an IGCC power plant to capture carbon dioxide from its exhaust gases. The modeling and design of the membrane is done using CFD software namely Ansys workbench. The design and modeling is done using two simulations, one describes the design and structure and the second one demonstrates the working mechanism of the membrane. This paper also briefly discusses IGCC which is environmentally benign compared to traditional pulverized coal-fired power plants, and economically feasible compared to the Natural Gas Combine Cycle (NGCC). IGCC power plant is more diverse and offers flexibility in fuel utility. This paper also incorporates a PFD of integrated gasification power plant with the carbon capturing membrane unit integrated in it. Index Terms: Integrated gasification combined cycle power plant, Carbon capture and storage, Gas permeating membrane, CFD based design of gas permeating membrane.


Author(s):  
Ashok K. Anand ◽  
Jeff Parmar ◽  
David L. Breton ◽  
Patrick Le

Integrated Gasification Combined Cycle (IGCC) utilizing solid and unconventional liquid fuels has now reached commercial stage as evidenced by their world wide construction and successful operation. The proposed ASME Performance Test Code 47 (PTC47) provides the users and owners of these new power plants, the guidance and procedures on conducting a performance test and evaluate the deviation from the performance guarantees. This paper reports the use of PTC47 codes in evaluating the test correction factors for the Wabash River IGCC Power Plant.


Author(s):  
Nikolett Sipo¨cz ◽  
Mohammad Mansouri ◽  
Peter Breuhaus ◽  
Mohsen Assadi

As part of the European Union (EU) funded H2-IGCC project this work presents the establishment of a baseline Integrated Gasification Combined Cycle (IGCC) power plant configuration under a new set of boundary conditions such as the combustion of undiluted hydrogen-rich syngas and high fuel flexibility. This means solving the problems with high NOx emitting diffusion burners, as this technology requires the costly dilution of the syngas with high flow rates of N2 and/or H2O. An overall goal of the project is to provide an IGCC configuration with a state-of-the-art (SOA) gas turbine (GT) with minor modifications to the existing SOA GT and with the ability to operate on a variety of fuels (H2-rich, syngas and natural gas) to meet the requirements of a future clean power generation. Therefore a detailed thermodynamic analysis of a SOA IGCC plant based on Shell gasification technology and Siemens/Ansaldo gas turbine with and without CO2 capture is presented. A special emphasis has been dedicated to evaluate at an intermediate stage of the project the GT performance and identify current technical constraints for the realization of the targeted fuel flexibility. The work shows that introduction of the low calorific fuel (H2 rich fuel more than 89 mol% H2) has rather small impact on the gas turbine from the system level study point of view. The study has indicated that the combustion of undiluted syngas has the potential of increasing the overall IGCC efficiency.


Author(s):  
Peter Carr

USEPA’s recent promulgation of the Clean Air Interstate Rule (CAIR) and Clean Air Mercury Rule (CAMR), and the designation of domestic fine particulate non-attainment areas, has spurred interest in adding particulate matter (PM) and mercury continuous emission monitoring systems (CEMS) to US power plants. While much of this interest has centered at least initially on pulverized coal-fired boiler units, the burgeoning integrated gasification combined cycle (IGCC) power market will likely also face the challenge of applying these new air emission measurement technologies. This paper will address the regulatory drivers which will encourage application of the PM and mercury CEMS on IGCC facilities, and it will discuss and evaluate the various measurement technologies/equipment available to comply with the new continuous emission measurement requirements. It will also summarize how various monitoring equipment suppliers have responded to this regulatory initiative. Finally, it will offer strategies to reduce the attendant risks and uncertainties associated with applying what are essentially emerging measurement technologies — technologies that will be tasked with demonstrating compliance with well-defined, strict air emission limitations.


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