Dual function materials (Ru+Na2O/Al2O3) for direct air capture of CO2 and in situ catalytic methanation: the impact of realistic ambient conditions

2021 ◽  
pp. 120990
Author(s):  
Chae Jeong-Potter ◽  
Monica Abdallah ◽  
Cory Sanderson ◽  
Mark Goldman ◽  
Raghubir Gupta ◽  
...  
Keyword(s):  
Dual Function ◽  
Ambient Conditions ◽  
Direct Air Capture ◽  
Air Capture ◽  
The Impact

scholarly journals The impact of binary water-CO2 isotherm models on the optimal performance of sorbent-based direct air capture processes.

2021 ◽  
Author(s):  
John Young ◽  
Enrique García-Díez ◽  
Susana Garcia ◽  
Mijndert van der Spek
Keyword(s):  
Energy Consumption ◽  
Co Adsorption ◽  
Process Modelling ◽  
Optimal Performance ◽  
Isotherm Models ◽  
Capture Process ◽  
Direct Air Capture ◽  
Air Capture ◽  
Adsorption Of Water ◽  
The Impact

First, an investigation of the co-adsorption of water and CO<sub>2</sub> onto a benchmark amine-functionalised adsorbent. Following on from this is a detailed process modelling and optimisation study of this sorbents performance in a direct air capture process. Next is a demonstration how the results are affected by the co-adsorption descriptions. Finally, a comparison between the modelled direct air capture process to existing and literature processes to benchmark the energy consumption of direct air capture.

Enhanced carbon dioxide removal from coupled direct air capture–bioenergy systems

2019 ◽  
Vol 3 (11) ◽  
pp. 3135-3146 ◽  
Author(s):  
William J. Sagues ◽  
Sunkyu Park ◽  
Hasan Jameel ◽  
Daniel L. Sanchez
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Removal ◽  
Carbon Removal ◽  
Direct Air Capture ◽  
Air Capture ◽  
Biomass Resources ◽  
The Impact ◽  
Bioenergy Systems

Synergistic integration of BECCS and DAC systems decreases costs, increases carbon removal, and extends the impact of scarce biomass resources.

scholarly journals Post-Combustion Capture or Direct Air Capture in Decarbonizing US Natural Gas Power?

2020 ◽  
Author(s):  
Habib Azarabadi ◽  
Klaus S. Lackner
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Carbon Capture ◽  
Learning By Doing ◽  
Combined Cycle ◽  
Direct Air Capture ◽  
Natural Gas Combined Cycle ◽  
Air Capture ◽  
The Cost ◽  
The Impact

<p>This analysis investigates the cost of carbon capture from the US natural gas-fired electricity generating fleet comparing two technologies: Post-Combustion Capture and Direct Air Capture (DAC). Many Natural Gas Combined Cycle (NGCC) units are suitable for post-combustion capture. We estimated the cost of post-combustion retrofits and investigated the most important unit characteristics contributing to this cost. Units larger than 350 MW, younger than 15 years, more efficient than 42% and with a utilization (capacity factor) higher than 0.5 are economically retrofittable. Counterintuitively, DAC (which is usually not considered for point-source capture) may be cheaper in addressing emissions from non-retrofittable NGCCs. DAC can also address the residual emissions from retrofitted plants. Moreover, economic challenges of post-combustion capture for small natural gas-fired units with low utilization, such as gas turbines, make DAC look favorable for these units. Considering the cost of post-combustion capture for the entire natural gas-related emissions after incorporating the impact of learning-by-doing for both carbon capture technologies, DAC is the cheaper capture solution for at least 1/3 of all emissions. </p>

scholarly journals Carbonation of lime-based materials under ambient conditions for direct air capture

2020 ◽  
Vol 242 ◽  
pp. 118330 ◽  
Author(s):  
María Erans ◽  
Seyed Ali Nabavi ◽  
Vasilije Manović
Keyword(s):  
Ambient Conditions ◽  
Direct Air Capture ◽  
Air Capture

Post-Combustion Capture or Direct Air Capture in Decarbonizing US Natural Gas Power?

2020 ◽  
Author(s):  
Habib Azarabadi ◽  
Klaus S. Lackner
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Carbon Capture ◽  
Learning By Doing ◽  
Combined Cycle ◽  
Direct Air Capture ◽  
Natural Gas Combined Cycle ◽  
Air Capture ◽  
The Cost ◽  
The Impact

<p>This analysis investigates the cost of carbon capture from the US natural gas-fired electricity generating fleet comparing two technologies: Post-Combustion Capture and Direct Air Capture (DAC). Many Natural Gas Combined Cycle (NGCC) units are suitable for post-combustion capture. We estimated the cost of post-combustion retrofits and investigated the most important unit characteristics contributing to this cost. Units larger than 350 MW, younger than 15 years, more efficient than 42% and with a utilization (capacity factor) higher than 0.5 are economically retrofittable. Counterintuitively, DAC (which is usually not considered for point-source capture) may be cheaper in addressing emissions from non-retrofittable NGCCs. DAC can also address the residual emissions from retrofitted plants. Moreover, economic challenges of post-combustion capture for small natural gas-fired units with low utilization, such as gas turbines, make DAC look favorable for these units. Considering the cost of post-combustion capture for the entire natural gas-related emissions after incorporating the impact of learning-by-doing for both carbon capture technologies, DAC is the cheaper capture solution for at least 1/3 of all emissions. </p>

Post-Combustion Capture or Direct Air Capture in Decarbonizing US Natural Gas Power?

2020 ◽  
Author(s):  
Habib Azarabadi ◽  
Klaus S. Lackner
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Carbon Capture ◽  
Learning By Doing ◽  
Combined Cycle ◽  
Direct Air Capture ◽  
Natural Gas Combined Cycle ◽  
Air Capture ◽  
The Cost ◽  
The Impact

<p>This analysis investigates the cost of carbon capture from the US natural gas-fired electricity generating fleet comparing two technologies: Post-Combustion Capture and Direct Air Capture (DAC). Many Natural Gas Combined Cycle (NGCC) units are suitable for post-combustion capture. We estimated the cost of post-combustion retrofits and investigated the most important unit characteristics contributing to this cost. Units larger than 350 MW, younger than 15 years, more efficient than 42% and with a utilization (capacity factor) higher than 0.5 are economically retrofittable. Counterintuitively, DAC (which is usually not considered for point-source capture) may be cheaper in addressing emissions from non-retrofittable NGCCs. DAC can also address the residual emissions from retrofitted plants. Moreover, economic challenges of post-combustion capture for small natural gas-fired units with low utilization, such as gas turbines, make DAC look favorable for these units. Considering the cost of post-combustion capture for the entire natural gas-related emissions after incorporating the impact of learning-by-doing for both carbon capture technologies, DAC is the cheaper capture solution for at least 1/3 of all emissions. </p>

scholarly journals The impact of binary water-CO2 isotherm models on the optimal performance of sorbent-based direct air capture processes.

2021 ◽  
Author(s):  
John Young ◽  
Enrique García-Díez ◽  
Susana Garcia ◽  
Mijndert van der Spek
Keyword(s):  
Energy Consumption ◽  
Co Adsorption ◽  
Process Modelling ◽  
Optimal Performance ◽  
Isotherm Models ◽  
Capture Process ◽  
Direct Air Capture ◽  
Air Capture ◽  
Adsorption Of Water ◽  
The Impact

First, an investigation of the co-adsorption of water and CO<sub>2</sub> onto a benchmark amine-functionalised adsorbent. Following on from this is a detailed process modelling and optimisation study of this sorbents performance in a direct air capture process. Next is a demonstration how the results are affected by the co-adsorption descriptions. Finally, a comparison between the modelled direct air capture process to existing and literature processes to benchmark the energy consumption of direct air capture.

scholarly journals The impact of binary water-CO2 isotherm models on the optimal performance of sorbent-based direct air capture processes.

2021 ◽  
Author(s):  
John Peter Young ◽  
Enrique García-Díez ◽  
Susana García ◽  
Mijndert Van der Spek
Keyword(s):  
Optimal Performance ◽  
Isotherm Models ◽  
Direct Air Capture ◽  
Vacuum Swing Adsorption ◽  
Air Capture ◽  
The Impact

Direct air capture (DAC) is an auspicious technology in pursuing negative CO2 emissions. A promising process is temperature vacuum swing adsorption (TVSA) employing amine functionalised adsorbents such as Lewatit® VP...

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