Recovery of Flue Gas Energy in Heat-Integrated Gasification Combined Cycle (IGCC) Power Plants Using the Contact Economizer System

2011 ◽  
Vol 25 (4) ◽  
pp. 1529-1536 ◽  
Author(s):  
Vhutshilo A. Madzivhandila ◽  
Thokozani Majozi ◽  
Toshko K. Zhelev
Author(s):  
C. J. Bower ◽  
S. H. Goldthorpe ◽  
G. Fynes

The Global Warming R&D Programme at the Coal Research Establishment is evaluating options for removing CO2 from coal-fired power plant. The aim is to identify coal-based technologies with minimal emissions of CO2 as contingency planning in case the most pessimistic fears of warming are realised. Two promising options based on Integrated Gasification Combined Cycle have been identified, so far. One incorporates a conventional CO shift conversion step and a physical solvent scrubbing process to remove 90% of the CO2 and 99% of the H2S. The second approach is conceptual, using CO shift but also a membrane gas separator. The gas turbine would be fired with hydrogen in both cases. A discussion of the environmental impact of these schemes suggests that they would be very much cleaner than current technology using Pulverised Fuel combustion with Flue Gas Desulphurisation. CO2 disposal options and needs for future work are also discussed.


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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