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This paper presents the results of ASPEN simulations of a carbon-dioxide (CO2) removal and recovery plant that captures CO2 from a 300 MW conventional coal-fired power plant. It also analyzes the techno-economic performance of 300 MW coal-fired power plant with and without ammonia-based CO2 capture process, based on the operating data of an existing power plant. Simulation and calculations indicate...
Significant progress has been made in energy conservation and consumption reduction since the 11th Five-year Plan. 600MW-class thermal power units have become the main force in China's power mix. It is crucial to study the energy-saving potential, improve the economic operation and overall competitiveness of 600MW power units. Taking a 600MW power unit of certain power corporation for instance, the...
This paper analyzes the techno-economic performance of 600 MW coal-fired power plant with and without ammonia-based CO2 capture process, based on the operating data of an existing power plant. The simulation and analysis, with fully consideration of features of existing coal-fired power plants and the integration of CO2 capture process with steam cycle, are made to reveal the thermal and environmental...
The process of co-combustion of municipal solid waste with sludge for power generation was simulated by ASPEN PLUS in this paper. Thermodynamic analysis was carried out according to the simulation results later. The results showed that: Using exhaust gas as heat source to dry the sludge could improve the generation efficiency; The exhaust flue gas of 423 K could decrease the sludge moisture content...
In this paper, the effects of nickel ions concentration (4.0 wt%, 4.5 wt%, 5.0 wt%), carbonization temperature (700??C, 800??C, 900??C), heating rate (5??C/min, 15??C/min, 20??C/min) and particle size (0.1-0.2 mm, 0.2-0.3 mm, 0.3-0.38 mm) on resistivity of char derived from winter wheat straw were studied. The result showed that when nickel loading is 5.0 wt%, carbonization temperature is 900??C,...
A non-stoichiometric equilibrium model was proposed to predict the performance of a biomass gasifier in this study. The model had produced satisfying results for product gas composition and lower heating value (LHV) prediction in air gasifier in comparison with data from literature. Effects of the operational parameters and fuel type (H/C and O/C) on the product gas were investigated.
The reaction mechanism of CO and Fe2O3 in a chemical-looping combustion (CLC) was studied based on density functional theory (DFT) at B3LYP level in this paper. The structures of all reactants, intermediate, transition structures and products of this reaction had been optimized and characterized. The reaction path was validated by means of the intrinsic reaction coordinate (IRC) approach. The result...
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