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A novel system for electricity and synthetic natural gas production from captured CO2: Techno-economic evaluation and multi-objective optimization
, Article Journal of CO2 Utilization ; Volume 63 , 2022 ; 22129820 (ISSN) ; Jalili, M ; Ziyaei, M ; Chitsaz, A ; Rosen, M. A ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
To mitigate global warming and fossil fuel shortages a novel oxy-fuel combustion power plant integrated with a power to gas system is proposed. A net-zero emission MATIANT cycle with inherent CO2 capture ability is selected as the power cycle also providing the CO2 and power demand of the power to gas system, which comprises a proton exchange membrane electrolyzer for hydrogen production and a Sabatier reactor for methanation. A techno-economic investigation, a multi-objective optimization, and a sensitivity analysis are carried out. A comprehensive economic method that covers all economic aspects is utilized, and a Sabatier reactor model which considers the possibility of the presence of...
Optimum Design of Micro Reactor for CO2 Methanation by CFD
, M.Sc. Thesis Sharif University of Technology ; Kazemeini, Mohammad (Supervisor)
Abstract
In this study, the viability of handling flue gas streams as a source of CO2 for the thermocatalytic conversion was investigated as a CO2 emissions reduction strategy and an intermittent energy storage solution. A transient mathematical model for dynamic catalyst deactivation was validated with experimental results and then used to study HEX membrane reactor. A simulation-based study of novel Sabatier reactor configurations was performed to study the effect of distributed H2 supply on Ni-based catalyst deactivation and to optimize the production of CH4. First, a heat-exchanger type, actively cooled Sabatier reactor is analyzed using a transient mathematical model to assess its feasibility....