Geopolymers as solid adsorbent for CO2 capture

2016 ◽  
Vol 148 ◽  
pp. 267-274 ◽  
Author(s):  
Matteo Minelli ◽  
Valentina Medri ◽  
Elettra Papa ◽  
Francesco Miccio ◽  
Elena Landi ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Solid Adsorbent

scholarly journals Trends in Solid Adsorbent Materials Development for CO2 Capture

2019 ◽  
Vol 11 (38) ◽  
pp. 34533-34559 ◽  
Author(s):  
Maryam Pardakhti ◽  
Tahereh Jafari ◽  
Zachary Tobin ◽  
Biswanath Dutta ◽  
Ehsan Moharreri ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Materials Development ◽  
Solid Adsorbent ◽  
Adsorbent Materials

scholarly journals Metal-Free Modified Boron Nitride for Enhanced CO2 Capture

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 549
Author(s):  
Fereshteh Hojatisaeidi ◽  
Mauro Mureddu ◽  
Federica Dessì ◽  
Geraldine Durand ◽  
Basudeb Saha
Keyword(s):  
Boron Nitride ◽  
Co2 Capture ◽  
Co2 Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Textural Properties ◽  
Structure Directing Agent ◽  
Metal Free ◽  
Solid Adsorbent ◽  
Triblock Copolymer Surfactant

Porous boron nitride is a new class of solid adsorbent with applications in CO2 capture. In order to further enhance the adsorption capacities of materials, new strategies such as porosity tuning, element doping and surface modification have been taken into account. In this work, metal-free modification of porous boron nitride (BN) has been prepared by a structure directing agent via simple heat treatment under N2 flow. We have demonstrated that textural properties of BN play a pivotal role in CO2 adsorption behavior. Therefore, addition of a triblock copolymer surfactant (P123) has been adopted to improve the pore ordering and textural properties of porous BN and its influence on the morphological and structural properties of pristine BN has been characterized. The obtained BN-P123 exhibits a high surface area of 476 m2/g, a large pore volume of 0.83 cm3/g with an abundance of micropores. More importantly, after modification with P123 copolymer, the capacity of pure CO2 on porous BN has improved by about 34.5% compared to pristine BN (2.69 mmol/g for BN-P123 vs. 2.00 mmol/g for pristine BN under ambient condition). The unique characteristics of boron nitride opens up new routes for designing porous BN, which could be employed for optimizing CO2 adsorption.

Thermal Conductivity of Aqueous Solvents Used in CO2 Capture

2016 ◽  
Vol 3 (1) ◽  
pp. 25-30
Author(s):  
Nayef Ghasem ◽  
◽  
Nihmiya Rahim ◽  
Mohamed Al-Marzouqi
Keyword(s):  
Thermal Conductivity ◽  
Co2 Capture

MATERIAL DEVELOPMENT FROM RICE HUSK FOR CO2 CAPTURE

2018 ◽  
Author(s):  
Premanath Murge ◽  
Srikanta Dinda ◽  
Bipin Chakravarthy ◽  
Sounak Roy
Keyword(s):  
Rice Husk ◽  
Co2 Capture ◽  
Material Development

Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

2016 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Siti Nabihah Jamaludin ◽  
Ruzitah Mohd Salleh
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Membrane Separation ◽  
Carbon Dioxide Capture ◽  
Global Climate ◽  
Research Trends ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Chemical Absorption ◽  
Factors Influencing

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

Ideal–Gas Thermochemical Properties for Alkanolamine and Related Species Involved in Carbon Capture Applications

2020 ◽  
Author(s):  
Nayyereh hatefi ◽  
William Smith
Keyword(s):  
Heat Capacity ◽  
Electronic Structure ◽  
Co2 Capture ◽  
Carbon Capture ◽  
Ideal Gas ◽  
Thermochemical Properties ◽  
Temperature Range ◽  
Comparison Results ◽  
Electronic Structure Methods ◽  
Protonated Forms

<div>Ideal{gas thermochemical properties (enthalpy, entropy, Gibbs energy, and heat capacity, Cp) of 49 alkanolamines potentially suitable for CO2 capture applications and their carbamate and protonated forms were calculated using two high{order electronic structure methods, G4 and G3B3 (or G3//B3LYP). We also calculate for comparison results from the commonly used B3LYP/aug-cc-pVTZ method. This data is useful for the construction of molecular{based thermodynamic models of CO2 capture processes involving these species. The Cp data for each species over the temperature range 200 K{1500 K is presented as functions of temperature in the form of NASA seven-term polynomial expressions, permitting the set of thermochemical properties to be calculated over this temperature range. The accuracy of the G3B3 and G4 results is estimated to be 1 kcal/mol and the B3LYP/aug-cc-pVTZ results are of nferior quality..</div>

Tuning Transition Metal Carbides Activity by Surface Metal Alloying: Case Study on CO2 Capture and Activation

2018 ◽  
Author(s):  
Marti Lopez ◽  
Luke Broderick ◽  
John J Carey ◽  
Francesc Vines ◽  
Michael Nolan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Co2 Capture ◽  
Density Functional ◽  
Deep Understanding ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Adsorption Sites ◽  
Surface Metal ◽  
A Minor

<div>CO2 is one of the main actors in the greenhouse effect and its removal from the atmosphere is becoming an urgent need. Thus, CO2 capture and storage (CCS) and CO2 capture and usage (CCU) technologies are intensively investigated as technologies to decrease the concentration</div><div>of atmospheric CO2. Both CCS and CCU require appropriate materials to adsorb/release and adsorb/activate CO2, respectively. Recently, it has been theoretically and experimentally shown that transition metal carbides (TMC) are able to capture, store, and activate CO2. To further improve the adsorption capacity of these materials, a deep understanding of the atomic level processes involved is essential. In the present work, we theoretically investigate the possible effects of surface metal doping of these TMCs by taking TiC as a textbook case and Cr, Hf, Mo, Nb, Ta, V, W, and Zr as dopants. Using periodic slab models with large</div><div>supercells and state-of-the-art density functional theory based calculations we show that CO2 adsorption is enhanced by doping with metals down a group but worsened along the d series. Adsorption sites, dispersion and coverage appear to play a minor, secondary constant effect. The dopant-induced adsorption enhancement is highly biased by the charge rearrangement at the surface. In all cases, CO2 activation is found but doping can shift the desorption temperature by up to 135 K.</div>

STUDY OF TREATMENTS FOR CALCIUM LOOPING SORBENTS FOR CO2 CAPTURE

2019 ◽  
Author(s):  
Kely Vieira ◽  
Gretta Larisa Aurora Arce Ferrufino ◽  
Ivonete Ávila
Keyword(s):  
Co2 Capture ◽  
Calcium Looping
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