In this paper two options for production, by means of natural gas, are presented and their performances are evaluated when they are integrated with advanced /air cycles. In this investigation two different schemes have been analyzed: an advanced combined cycle power plant (CC) and a new advanced mixed cycle power plant (AMC). The two methods for producing are as follows: (1) steam methane reforming: it is the simplest and potentially the most economic method for producing hydrogen in the foreseeable future; and (2) partial oxidation of methane: it could offer an energy advantage because this method reduces the energy requirement of the reforming process. These hydrogen production plants require material and energetic integrations with power section and the best interconnections must be investigated in order to obtain good overall performance. With reference to thermodynamic and economic performance, significant comparisons have been made between the above introduced reference plants. An efficiency decrease and an increase in the cost of electricity has been obtained when power plants are equipped with a natural gas decarbonization section. The main results of the performed investigation are quite variable among the different production technologies here considered: the efficiency decreases in a range of 5.5 percentage points to nearly 10 for the partial oxidation of the natural gas and in a range of about 9 percentage points to over 12 for the steam methane reforming. The electricity production cost increases in a range of about 41–42% for the first option and in a range of about 34–38% for the second one. The AMC, coupled with partial oxidation, stands out among the other power plant solutions here analyzed because it exhibits the highest net efficiency and the lowest final specific emission. In addition to this, economic impact is favorable when AMC is equipped with systems for production based on partial oxidation of natural gas.
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e-mail: gambini@ing.uniroma2.it
e-mail: vellini@ing.uniroma2.it
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October 2007
Technical Papers
Natural Gas Decarbonization Technologies for Advanced Power Plants
Marco Gambini,
Marco Gambini
Department of Industrial Engineering,
e-mail: gambini@ing.uniroma2.it
University of Rome “Tor Vergata,”
Via del Politecnico no. 1, 00133 Rome, Italy
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Michela Vellini
Michela Vellini
Department of Industrial Engineering,
e-mail: vellini@ing.uniroma2.it
University of Rome “Tor Vergata,”
Via del Politecnico no. 1, 00133 Rome, Italy
Search for other works by this author on:
Marco Gambini
Department of Industrial Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico no. 1, 00133 Rome, Italye-mail: gambini@ing.uniroma2.it
Michela Vellini
Department of Industrial Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico no. 1, 00133 Rome, Italye-mail: vellini@ing.uniroma2.it
J. Eng. Gas Turbines Power. Oct 2007, 129(4): 1114-1124 (11 pages)
Published Online: January 24, 2007
Article history
Received:
October 13, 2006
Revised:
January 24, 2007
Citation
Gambini, M., and Vellini, M. (January 24, 2007). "Natural Gas Decarbonization Technologies for Advanced Power Plants." ASME. J. Eng. Gas Turbines Power. October 2007; 129(4): 1114–1124. https://doi.org/10.1115/1.2719266
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