H2O2/steam activation as an eco-friendly and efficient top-down approach to enhancing porosity on carbonaceous materials: the effect of inevitable oxygen functionalities on CO2 capture

2018 ◽  
Vol 20 (22) ◽  
pp. 5224-5234 ◽  
Author(s):  
Young-Jung Heo ◽  
Soo-Jin Park

Nanoporous materials have been developed as carbon dioxide (CO2)-capturing materials.

Author(s):  
Feng Zheng ◽  
R. Shane Addleman ◽  
Christopher L. Aardahl, ◽  
Glen E. Fryxell ◽  
Daryl R. Brown ◽  
...  

Author(s):  
Feng Zheng ◽  
R. Shane Addleman ◽  
Christopher L. Aardahl ◽  
Glen E. Fryxell ◽  
Daryl R. Brown ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1962
Author(s):  
Mahboubeh Nabavinia ◽  
Baishali Kanjilal ◽  
Noahiro Fujinuma ◽  
Amos Mugweru ◽  
Iman Noshadi

To address the issue of global warming and climate change issues, recent research efforts have highlighted opportunities for capturing and electrochemically converting carbon dioxide (CO2). Despite metal doped polymers receiving widespread attention in this respect, the structures hitherto reported lack in ease of synthesis with scale up feasibility. In this study, a series of mesoporous metal-doped polymers (MRFs) with tunable metal functionality and hierarchical porosity were successfully synthesized using a one-step copolymerization of resorcinol and formaldehyde with Polyethyleneimine (PEI) under solvothermal conditions. The effect of PEI and metal doping concentrations were observed on physical properties and adsorption results. The results confirmed the role of PEI on the mesoporosity of the polymer networks and high surface area in addition to enhanced CO2 capture capacity. The resulting Cobalt doped material shows excellent thermal stability and promising CO2 capture performance, with equilibrium adsorption of 2.3 mmol CO2/g at 0 °C and 1 bar for at a surface area 675.62 m2/g. This mesoporous polymer, with its ease of synthesis is a promising candidate for promising for CO2 capture and possible subsequent electrochemical conversion.


2016 ◽  
Vol 139 (3) ◽  
Author(s):  
Bilal Hassan ◽  
Oghare Victor Ogidiama ◽  
Mohammed N. Khan ◽  
Tariq Shamim

A thermodynamic model and parametric analysis of a natural gas-fired power plant with carbon dioxide (CO2) capture using multistage chemical looping combustion (CLC) are presented. CLC is an innovative concept and an attractive option to capture CO2 with a significantly lower energy penalty than other carbon-capture technologies. The principal idea behind CLC is to split the combustion process into two separate steps (redox reactions) carried out in two separate reactors: an oxidation reaction and a reduction reaction, by introducing a suitable metal oxide which acts as an oxygen carrier (OC) that circulates between the two reactors. In this study, an Aspen Plus model was developed by employing the conservation of mass and energy for all components of the CLC system. In the analysis, equilibrium-based thermodynamic reactions with no OC deactivation were considered. The model was employed to investigate the effect of various key operating parameters such as air, fuel, and OC mass flow rates, operating pressure, and waste heat recovery on the performance of a natural gas-fired power plant with multistage CLC. The results of these parameters on the plant's thermal and exergetic efficiencies are presented. Based on the lower heating value, the analysis shows a thermal efficiency gain of more than 6 percentage points for CLC-integrated natural gas power plants compared to similar power plants with pre- or post-combustion CO2 capture technologies.


RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107299-107306 ◽  
Author(s):  
Aibing Chen ◽  
Yonglei Li ◽  
Yifeng Yu ◽  
Yuetong Li ◽  
Linsong Zhang ◽  
...  

Mesoporous carbonaceous materials are synthesized using resol as the carbon precursor, triblock copolymer F127 as the template and cigarette filters as the matrix scaffold, and exhibit notable phenol adsorption and CO2 capture.


2019 ◽  
Vol 360 ◽  
pp. 1199-1212 ◽  
Author(s):  
Edith Mawunya Kutorglo ◽  
Fatima Hassouna ◽  
Anna Beltzung ◽  
Dušan Kopecký ◽  
Ivona Sedlářová ◽  
...  

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