نتایج جستجو برای: co2 adsorption

تعداد نتایج: 123080  

2015
M. G. Plaza I. Durán F. Rubiera C. Pevida

The main drawbacks of developing carbon adsorbents from pine sawdust, an abundant biomass feedstock, are the low carbon yield of the process and the poor mechanical properties of the resulting carbons. In an attempt to overcome these limitations, the effect of the addition of coal tar pitch was assessed. Adsorbent pellets were produced from pine sawdust and coal tar pitch by activation with CO2...

2015
Changyong Yim Moonchan Lee Minhyuk Yun Gook-Hee Kim Kyong Tae Kim Sangmin Jeon

Nanoporous anodic aluminum oxide (AAO) microcantilevers are fabricated and MIL-53 (Al) metal-organic framework (MOF) layers are directly synthesized on each cantilever surface by using the aluminum oxide as the metal ion source. Exposure of the MIL53-AAO cantilevers to various concentrations of CO2, N2, CO, and Ar induces changes in their deflections and resonance frequencies. The results of th...

Journal: :ChemSusChem 2014
Jayashree Ethiraj Elisa Albanese Bartolomeo Civalleri Jenny G Vitillo Francesca Bonino Sachin Chavan Greig C Shearer Karl Petter Lillerud Silvia Bordiga

A series of mixed-ligand [1,4-benzenedicarboxylic acid (BDC)/2-amino-1,4-benzenedicarboxylic acid (ABDC)] UiO-66 metal-organic frameworks (MOFs) synthesized through two different methods (low (LT) and high temperature (HT)) have been investigated for their carbon dioxide adsorption properties from 0 to 1 bar to clarify the role of amino loading on carbon dioxide uptake. Volumetric CO2 isotherms...

2017
M. Pachecka J. M. Sturm C. J. Lee F. Bijkerk

The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection-absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mod...

2014
Abhijit Krishna Adhikari

Abstract: CO2 is one of the most important greenhouse gases and its removal from flue gas and natural gas has become increasingly important. We report the synthesis, characterization, and CO2 adsorption properties of two similar metal organic frameworks; Co and Ni based MOF-74. The BET specific surface areas of MOF-74(Co) and MOF-74(Ni) MOFs were 1,406 and 1,418 mg, respectively with the identi...

2016
Jianjun Liu Guang Li Yue Zhang

CO2 flooding of coalbed methane (CO2-ECBM) not only stores CO2 underground and reduces greenhouse gas emissions but also enhances the gas production ratio. This coupled process involves multi-phase fluid flow and coal-rock deformation, as well as processes such as competitive gas adsorption and diffusion from the coal matrix into fractures. A dual-porosity medium that consists of a matrix and f...

2017
C. F. Martín S. Brandani

This work presents an economic and simple method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the low cost silica gel impregnated by low molecular-weight amine is stable and work very well at a temperature up to 130 C. The developed adsorbent has a fast adsorption kinetics and can...

Journal: :Journal of the American Chemical Society 2006
Teresa L Tarbuck Geraldine L Richmond

The orientation and hydrogen bonding of water molecules in the vapor/water interfacial region in the presence of SO2 and CO2 gas are examined using vibrational sum-frequency spectroscopy (VSFS) to gain insight into the adsorption and reactions of these gases in atmospheric aerosols. The results show that an SO2 surface complex forms when the water surface is exposed to an atmosphere of SO2 gas....

Journal: :Annual review of chemical and biomolecular engineering 2014
Jennifer Wilcox Reza Haghpanah Erik C Rupp Jiajun He Kyoungjin Lee

Reducing CO2 in the atmosphere and preventing its release from point-source emitters, such as coal and natural gas-fired power plants, is a global challenge measured in gigatons. Capturing CO2 at this scale will require a portfolio of gas-separation technologies to be applied over a range of applications in which the gas mixtures and operating conditions will vary. Chemical scrubbing using abso...

Journal: :Chemical communications 2013
Mario Wriedt Julian P Sculley Wolfgang M Verdegaal Andrey A Yakovenko Hong-Cai Zhou

The activation and CO2 capture properties of a microporous metal-organic framework with elastic single-molecule traps were systematically investigated. This material shows a unique low-energy gas-purge activation capability, high CO2 adsorption selectivities over various gases and optimized working capacities per energy of 2.9 mmol kJ(-1) at 128 °C.

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