Physical selectivity on isotoplogues of gaseous alkanes by shale pore network: Evidence from dynamic adsorption process of natural gas

2021 ◽  
pp. 104252
Author(s):  
Xiaofeng Wang ◽  
Peng Liu ◽  
Bernhard M. Krooss ◽  
Qiang Meng ◽  
Philipp Weniger ◽  
...  
Keyword(s):  
Natural Gas ◽  
Adsorption Process ◽  
Pore Network ◽  
Dynamic Adsorption

Performance of CaX Zeolite for Separation of C2H6, C2H4, and CH4by Adsorption Process; Capacity, Selectivity, and Dynamic Adsorption Measurements

2010 ◽  
Vol 46 (2) ◽  
pp. 349-355 ◽  
Author(s):  
S. Hosseinpour ◽  
S. Fatemi ◽  
Y. Mortazavi ◽  
M. Gholamhoseini ◽  
M. Takht Ravanchi
Keyword(s):  
Adsorption Process ◽  
Dynamic Adsorption

As(III) removal by Fe(III)-amidoximated PAN in the presence of H2O2 through simultaneous oxidation and adsorption

2019 ◽  
Vol 20 (2) ◽  
pp. 565-573
Author(s):  
Luyao Gao ◽  
Mengna Hao ◽  
Fanling Bu ◽  
Chunnuan Ji ◽  
Rongjun Qu ◽  
...  
Keyword(s):  
Adsorption Process ◽  
Arsenic Removal ◽  
Ph Value ◽  
Dynamic Adsorption ◽  
Optimal Conditions ◽  
Efficient Removal ◽  
Simultaneous Oxidation ◽  
Simulated Groundwater ◽  
Ph Range ◽  
Short Time

Abstract This study explored the efficient removal of As(III) by Fe(III)-amidoximated PAN (Fe(III) AO PAN) in the presence of H2O2 through simultaneous oxidation and adsorption. It presented that As(III) could be oxidized to As(V) efficiently in the pH range 3–9 within a short time. At the same time, the oxidized As(V) was adsorbed by Fe(III)-AO PAN. The effect of pH value, H2O2 concentration, Fe(III)-AO PAN amount, and coexisting anions on the As(III) oxidation and removal were investigated in detail. Dynamic adsorption on fixed column was also studied. Arsenic removal efficiency including As(III) and As(V) could be achieved (95.2%) by the simultaneous oxidation and adsorption process at the following optimal conditions: pH = 6.5, dosage of Fe(III)-AO PAN = 2.5 g/L, H2O2 = 100 mg/L, initial concentration of As(III) = 5 mg/L. Dynamic adsorption on fixed column demonstrated that As(III) in simulated groundwater could be efficiently removed from 500μg/L to <10 μg/L within 130 bed volumes (BV).

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