Binary- and Pure-Component Adsorption of CO2, H2O, and C6H14 on SSZ-13

2020 ◽  
Vol 59 (40) ◽  
pp. 18151-18159
Author(s):  
Joshua A. Thompson ◽  
Stacey I. Zones
Keyword(s):  
Pure Component ◽  
Adsorption Of Co2 ◽  
Component Adsorption

scholarly journals Enhanced N-doped Porous Carbon Derived from KOH-Activated Waste Wool: A Promising Material for Selective Adsorption of CO2/CH4 and CH4/N2

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 266 ◽  
Author(s):  
Yao Li ◽  
Ran Xu ◽  
Binbin Wang ◽  
Jianping Wei ◽  
Lanyun Wang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Selective Adsorption ◽  
Landfill Gas ◽  
Pure Component ◽  
Mixing Ratios ◽  
Ideal Adsorbed Solution Theory ◽  
Adsorption Capacities ◽  
Adsorbed Solution ◽  
Separation Of Co2 ◽  
Adsorption Of Co2

Separation of impurities (CO2 and N2) from CH4 is an important issue for natural gas alternatives (such as coalbed gas, biogas, and landfill gas) upgrading. It is notably challenging to synthesize high N-doped porous carbon with an appropriate porous structure. In this work, high N content (14.48 wt %) porous carbon with micropore size of 0.52 and 1.2 nm and specific surface area of 862 m2 g−1 has been synthesized from potassium hydroxide (KOH) activated waste wool upon the urea modification. Pure component adsorption isotherms of CO2, CH4, and N2 are systematically measured on this enhanced N-doped porous carbon at 0 and 25 °C, up to 1 bar, to evaluate the gases adsorption capability, and correlated with the Langmuir model. These data are used to estimate the separation selectivities for binary mixtures of CO2/CH4 and CH4/N2 at different mixing ratios according to the ideal adsorbed solution theory (IAST) model. At an ambient condition of 25 °C and 1 bar, the predicted selectivities for equimolar CO2/CH4 and CH4/N2 are 3.19 and 7.62, respectively, and the adsorption capacities for CO2, CH4, and N2 are 2.91, 1.01, and 0.13 mmol g−1, respectively. This report introduces a simple pathway to obtain enhanced N-doped porous carbon with large adsorption capacities for gas separation of CO2/CH4 and CH4/N2.

Monte Carlo Simulation of Single- and Binary-Component Adsorption of CO2, N2, and H2in Zeolite Na-4A

2003 ◽  
Vol 17 (4) ◽  
pp. 977-983 ◽  
Author(s):  
E. Demet Akten ◽  
Ranjani Siriwardane ◽  
David S. Sholl
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Binary Component ◽  
Adsorption Of Co2 ◽  
Component Adsorption

scholarly journals Preparation and Evaluation of a Coconut Shell-Based Activated Carbon for CO2/CH4 Separation

2018 ◽  
Author(s):  
Amna Abdeljaoued ◽  
Nausika Querejeta Montes ◽  
Inés Durán ◽  
Noelia Álvarez-Gutiérrez ◽  
Covadonga Pevida García ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Fixed Bed ◽  
Pure Component ◽  
Gas Mixture ◽  
Renewable Source ◽  
Textural Characterization ◽  
Coconut Shells ◽  
Preparation And Evaluation ◽  
Component Adsorption

Biomass is a widely distributed and renewable source of carbon. The main objective of this work is to produce an activated carbon from coconut shells with suitable characteristics to separate CO2 from biogas. The textural characterization of the adsorbent has been determined. Pure component adsorption isotherms of CO2 and CH4 at 30, 50 and 70 °C have been measured. Moreover, the performance of the produced activated carbon, as potential adsorbent for CO2 capture from a CO2/CH4 gas mixture has been evaluated under dynamic conditions in a purpose-built fixed-bed setup.

Competitive Adsorption of Phenoxy Herbicide Chemicals in Soil

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2121-2124 ◽  
Author(s):  
S. Susarla ◽  
G. V. Bhaskar ◽  
S. M. Rao Bhamidimarri
Keyword(s):  
Competitive Adsorption ◽  
Pure Component ◽  
The Other ◽  
Dichlorophenoxyacetic Acid ◽  
Volcanic Soil ◽  
Adsorption Capacities ◽  
Phenoxy Herbicide ◽  
Chlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Component Adsorption

A modified Freundlich-type bicomponent adsorption isotherm proposed by Sheindorf et al. (1981) was used to describe the competitive adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-methyl-4-chlorophenoxyacetic acid (MCPA) onto volcanic soil. The adsorption capacities of 2,4-D and MCPA reduced in presence of the other component compared to pure component adsorption capacities.

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