Analysis of an integrated cryogenic air separation unit, oxy-combustion carbon dioxide power cycle and liquefied natural gas regasification process by exergoeconomic method

2017 ◽  
Vol 139 ◽  
pp. 245-259 ◽  
Author(s):  
Mehdi Mehrpooya ◽  
Masood Jalali Zonouz
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Air Separation ◽  
Separation Unit ◽  
Power Cycle ◽  
Air Separation Unit

scholarly journals Thermodynamic evaluation of supercritical oxy-type power plant with high-temperature three-end membrane for air separation

2014 ◽  
Vol 35 (3) ◽  
pp. 105-116 ◽  
Author(s):  
Janusz Kotowicz ◽  
Adrian Balicki ◽  
Sebastian Michalski
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Power Plant ◽  
Fluidized Bed ◽  
Air Separation ◽  
Thermodynamic Evaluation ◽  
Separation Unit ◽  
Air Separation Unit ◽  
Combustion Technology ◽  
Steam Parameters

Abstract Among the technologies which allow to reduce greenhouse gas emissions, mainly of carbon dioxide, special attention deserves the idea of ‘zero-emission’ technology based on boilers working in oxy-combustion technology. In the paper a thermodynamic analysis of supercritical power plant fed by lignite was made. Power plant consists of: 600 MW steam power unit with live steam parameters of 650 °C/30 MPa and reheated steam parameters of 670 °C/6 MPa; circulating fluidized bed boiler working in oxy-combustion technology; air separation unit and installation of the carbon dioxide compression. Air separation unit is based on high temperature membrane working in three-end technology. Models of steam cycle, circulation fluidized bed boiler, air separation unit and carbon capture installation were made using commercial software. After integration of these models the net electricity generation efficiency as a function of the degree of oxygen recovery in high temperature membrane was analyzed.

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