Thermodynamic and economic performance of oxy-combustion power plants integrating chemical looping air separation

Energy ◽  
2020 ◽  
Vol 206 ◽  
pp. 118136
Author(s):  
Menglei Qing ◽  
Bo Jin ◽  
Jinchen Ma ◽  
Xixian Zou ◽  
Xiaoyu Wang ◽  
...  
Keyword(s):  
Economic Performance ◽  
Power Plants ◽  
Air Separation ◽  
Chemical Looping ◽  
Chemical Looping Air Separation

scholarly journals Techno-Economic Evaluations of Copper-Based Chemical Looping Air Separation System for Oxy-Combustion and Gasification Power Plants with Carbon Capture

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3095 ◽  
Author(s):  
Calin-Cristian Cormos
Keyword(s):  
Co2 Capture ◽  
Carbon Capture ◽  
Power Plants ◽  
Large Scale ◽  
Oxygen Carrier ◽  
Capture Rate ◽  
Air Separation ◽  
Economic Evaluations ◽  
Chemical Looping ◽  
Chemical Looping Air Separation

Energy and economic penalties for CO2 capture are the main challenges in front of the carbon capture technologies. Chemical Looping Air Separation (CLAS) represents a potential solution for energy and cost-efficient oxygen production in comparison to the cryogenic method. This work is assessing the key techno-economic performances of a CLAS system using copper oxide as oxygen carrier integrated in coal and lignite-based oxy-combustion and gasification power plants. For comparison, similar combustion and gasification power plants using cryogenic air separation with and without carbon capture were considered as benchmark cases. The assessments were focused on large scale power plants with 350–500 MW net electricity output and 90% CO2 capture rate. As the results show, the utilization of CLAS system in coal and lignite-based oxy-combustion and gasification power plants is improving the key techno-economic indicators e.g., increasing the energy efficiency by about 5–10%, reduction of specific capital investments by about 12–18%, lower cost of electricity by about 8–11% as well as lower CO2 avoidance cost by about 17–27%. The highest techno-economic improvements being noticed for oxy-combustion cases since these plants are using more oxygen than gasification plants.

Kinetics of perovskite-like oxygen carriers for chemical looping air separation

2018 ◽  
Vol 35 (3) ◽  
pp. 626-636 ◽  
Author(s):  
Limin Hou ◽  
Qingbo Yu ◽  
Tuo Wang ◽  
Kun Wang ◽  
Qin Qin ◽  
...  
Keyword(s):  
Air Separation ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Chemical Looping Air Separation ◽  
Kinetics Of
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