Results 11 to 20 of about 1,525,068 (302)

Cost estimation of CCS integration into thermal power plants in Japan

open access: yesMechanical Engineering Journal, 2022
Carbon capture and storage (CCS) is an important technology to reduce CO2 emissions from power and industry. To accelerate large-scale CCS deployment, further reduction of the cost to implement the full technology chain is necessary.
Hirotaka ISOGAI   +2 more
doaj   +1 more source

Biogas upgrading by chemical absorption using ammonia rich absorbents derived from wastewater [PDF]

open access: yes, 2014
The use of ammonia (NH3) rich wastewaters as an ecological chemical absorption solvent for the selective extraction of carbon dioxide (CO2) during biogas upgrading to ‘biomethane’ has been studied.
Jefferson, Bruce   +2 more
core   +1 more source

Mathematical Modeling and Numerical Simulation of CO2 Removal by Using Hollow Fiber Membrane Contactors [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2017
In this study, a mathematical model is proposed for CO2 separation from N2/CO2 mixtureusing a hollow fiber membrane contactor by various absorbents. The contactor assumed as non-wetted membrane; radial and axial diffusions were also considered in the ...
Mohammad Mesbah   +3 more
doaj   +1 more source

A review of CO2 catalytic regeneration research based on MEA solution

open access: yesFrontiers in Energy Research, 2023
In recent years, the rapid increase of CO2 emission has caused severe environmental issues. The environmental concern has made how to reduce the carbon emissions become a hot topic. Many scholars and research teams believe that the organic amine chemical
Zhiyuan Yang   +5 more
doaj   +1 more source

Hydrogen contamination in Ge-doped SiO[sub 2] thin films prepared by helicon activated reactive evaporation [PDF]

open access: yes, 2015
Germanium-doped silicon oxidethin films were deposited at low temperature by using an improved helicon plasma assisted reactive evaporation technique.
Boswell, R.   +5 more
core   +1 more source

The influence of acoustic power on chemical absorption of CO2 using Slow Kinetic Solvent [PDF]

open access: yesE3S Web of Conferences, 2021
Ultrasonic Irradiation (UI) is an emerging technology that is used to assist the CO2 absorption process. Even for the slow kinetic solvents without using any chemical promoter, high-frequency UI might enhance mass transfer during the absorption process ...
Shokrollahi Fatemeh, Keong Lau Kok
doaj   +1 more source

A metal-poor damped Ly-alpha system at redshift 6.4 [PDF]

open access: yes, 2019
We identify a strong Ly-alpha damping wing profile in the spectrum of the quasar P183+05 at z=6.4386. Given the detection of several narrow metal absorption lines at z=6.40392, the most likely explanation for the absorption profile is that it is due to a
Bañados, Eduardo   +12 more
core   +2 more sources

Interpretation of X-ray Absorption Spectroscopy in the Presence of Surface Hybridization [PDF]

open access: yes, 2017
X-ray absorption spectroscopy yields direct access to the electronic and geometric structure of hybrid inorganic-organic interfaces formed upon adsorption of complex molecules at metal surfaces.
Diller, Katharina   +3 more
core   +2 more sources

Giant excitonic absorption and emission in two-dimensional group-III nitrides [PDF]

open access: yes, 2019
Absorption and emission of pristine-like semiconducting monolayers of BN, AlN, GaN, and InN are here systematically studied by ab-initio methods. We calculate the absorption spectra for in-plane and out-of-plane light polarization including quasiparticle
Bechstedt, Friedhelm   +5 more
core   +1 more source

Scale-Up Effects of CO2 Capture by Methyldiethanolamine (MDEA) Solutions in Terms of Loading Capacity

open access: yesTechnologies, 2016
In the present study, results from three different CO2 capture experimental scales (laboratory, pilot unit, and a larger pilot unit), using aqueous amine solutions of methyldiethanolamine (MDEA) 20 wt %, are compared in terms of loading capacity.
Samuel P. Santos   +2 more
doaj   +1 more source

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