The advances in post‐combustion CO2 capture by physical adsorption: from materials innovation to separation practice

ChemSusChem ◽  
2021 ◽  
Author(s):  
An-Hui Lu ◽  
Ru-Shuai Liu ◽  
Xiao-Dong Shi ◽  
Cheng-Tong Wang ◽  
Yu-Zhou Gao ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Physical Adsorption

scholarly journals CO2 capture through electro-conductive adsorbent using physical adsorption system for sustainable development

2019 ◽  
Vol 42 (6) ◽  
pp. 1507-1515 ◽  
Author(s):  
M. Farooq ◽  
M. A. Saeed ◽  
M. Imran ◽  
G. M. Uddin ◽  
M. Asim ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Co2 Capture ◽  
Physical Adsorption ◽  
Adsorption System

Solid Sorbent Post-Combustion CO2 Capture in Subcritical PC Power Plant

2015 ◽  
Author(s):  
Qin Chen ◽  
Ashok Rao ◽  
Scott Samuelsen
Keyword(s):  
Power Plant ◽  
Co2 Emissions ◽  
Co2 Capture ◽  
Power Efficiency ◽  
Power Plants ◽  
Physical Adsorption ◽  
Solid Sorbent ◽  
Levelized Cost Of Electricity ◽  
Current State ◽  
Sorbent Regeneration

Existing coal fired power plants are expected to continue providing a significant portion of power generation and a majority of these are subcritical pulverized coal (PC) units which have higher CO2 emissions on a MWe basis due to their higher heat rates, while CO2 emissions are an increasing concern due to global pressure on limiting greenhouse gas accumulation in the atmosphere. Current state-of-the-art CO2 capture technology uses an aqueous amine solution to chemically absorb the CO2 from the flue gas and thus requires a large amount of energy for solvent regeneration. Novel solid sorbent based CO2 capture technologies are under development to capture the CO2 via physical adsorption and desorption, thereby consuming far less energy for the sorbent regeneration process. This present work is focused on retrofitting a subcritical PC power plant with solid sorbent post combustion CO2 capture technology. Thermal performance and costs are compared with an amine based CO2 capture plant as well as the plant with no CO2 capture. The design of the solid sorbent based CO2 capture system is optimized for integration to minimize plant modifications and the associated downtime. In an existing PC plant with a net power efficiency of 36.57%, use of the amine based capture reduces the net efficiency to 26.01% while with the solid sorbent based capture, the reduction in net efficiency is far less at 28.67% when 90% of the CO2 is captured. As a consequence, the increase in plant cooling duty is significantly lower for the solid sorbent CO2 capture case, with the water usage on a per MW basis being almost 17% lower than the amine based PC plant. The calculated levelized cost of electricity is increased from $60.5/MWh without CO2 capture to $124.3/MWh for amine based capture while that with the solid sorbent based capture is much lower at $115.8/MWh.

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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