Zinc Chloride and Hydrochloric Acid Coextraction from Galvanizing Pickling Waste in the Presence of Iron(II). Results with Hollow Fiber Membrane Contactors

2014 ◽  
Vol 53 (11) ◽  
pp. 4453-4461 ◽  
Author(s):  
Kwan H. Lum ◽  
Samuel J. Cook ◽  
Geoff W. Stevens ◽  
Jilska M. Perera ◽  
Sandra E. Kentish
Keyword(s):  
Hydrochloric Acid ◽  
Zinc Chloride ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Membrane Contactors

scholarly journals CO2 Absorption Using Hollow Fiber Membrane Contactors: Introducing pH Swing Absorption (pHSA) to Overcome Purity Limitation

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 496
Author(s):  
Sayali Ramdas Chavan ◽  
Patrick Perré ◽  
Victor Pozzobon ◽  
Julien Lemaire
Keyword(s):  
Hollow Fiber ◽  
Recovery Rate ◽  
Hollow Fiber Membrane ◽  
Operating Conditions ◽  
Co2 Removal ◽  
Co2 Absorption ◽  
Fiber Membrane ◽  
Residual Content ◽  
Membrane Contactors ◽  
Ph Swing

Recently, membrane contactors have gained more popularity in the field of CO2 removal; however, achieving high purity and competitive recovery for poor soluble gas (H2, N2, or CH4) remains elusive. Hence, a novel process for CO2 removal from a mixture of gases using hollow fiber membrane contactors is investigated theoretically and experimentally. A theoretical model is constructed to show that the dissolved residual CO2 hinders the capacity of the absorbent when it is regenerated. This model, backed up by experimental investigation, proves that achieving a purity > 99% without consuming excessive chemicals or energy remains challenging in a closed-loop system. As a solution, a novel strategy is proposed: the pH Swing Absorption which consists of manipulating the acido–basic equilibrium of CO2 in the absorption and desorption stages by injecting moderate acid and base amount. It aims at decreasing CO2 residual content in the regenerated absorbent, by converting CO2 into its ionic counterparts (HCO3− or CO32−) before absorption and improving CO2 degassing before desorption. Therefore, this strategy unlocks the theoretical limitation due to equilibrium with CO2 residual content in the absorbent and increases considerably the maximum achievable purity. Results also show the dependency of the performance on operating conditions such as total gas pressure and liquid flowrate. For N2/CO2 mixture, this process achieved a nitrogen purity of 99.97% with a N2 recovery rate of 94.13%. Similarly, for H2/CO2 mixture, a maximum H2 purity of 99.96% and recovery rate of 93.96% was obtained using this process. Moreover, the proposed patented process could potentially reduce energy or chemicals consumption.

scholarly journals Olefin/Paraffin Separation using Ceramic Hollow Fiber Membrane Contactors

2012 ◽  
Vol 44 ◽  
pp. 662-665 ◽  
Author(s):  
R. Faiz ◽  
M. Fallanza ◽  
I. Ortiz ◽  
K. Li
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Membrane Contactors

Mass transfer simulation of solvent extraction in hollow-fiber membrane contactors

Desalination ◽  
2011 ◽  
Vol 275 (1-3) ◽  
pp. 126-132 ◽  
Author(s):  
Farzad Fadaei ◽  
Saeed Shirazian ◽  
Seyed Nezameddin Ashrafizadeh
Keyword(s):  
Mass Transfer ◽  
Solvent Extraction ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Membrane Contactors

scholarly journals Stripping of CO2 in Post-combustion Capture with Chemical Solvents: Intensification Potential of Hollow Fiber Membrane Contactors

2017 ◽  
Vol 114 ◽  
pp. 1334-1341 ◽  
Author(s):  
David Albarracin-Zaidiza ◽  
Bouchra Belaissaoui ◽  
Denis Roizard ◽  
Eric Favre ◽  
Sabine Rode
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Membrane Contactors

Post-combustion CO2 capture using super-hydrophobic, polyether ether ketone, hollow fiber membrane contactors

2013 ◽  
Vol 430 ◽  
pp. 79-86 ◽  
Author(s):  
Shiguang Li ◽  
Dennis J. Rocha ◽  
S. James Zhou ◽  
Howard S. Meyer ◽  
Benjamin Bikson ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Polyether Ether Ketone ◽  
Ether Ketone ◽  
Membrane Contactors

Carbon dioxide absorption by monoethanolamine in hollow fiber membrane contactors: A parametric investigation

AIChE Journal ◽  
2011 ◽  
Vol 58 (9) ◽  
pp. 2843-2855 ◽  
Author(s):  
Noureddine Boucif ◽  
Jean Pierre Corriou ◽  
Denis Roizard ◽  
Eric Favre
Keyword(s):  
Carbon Dioxide ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Carbon Dioxide Absorption ◽  
Parametric Investigation ◽  
Membrane Contactors

CH4/CO2 separation from biogas stream using porous hydrophobic ceramic hollow fiber membrane contactors

2020 ◽  
Vol 37 (6) ◽  
pp. 1036-1041 ◽  
Author(s):  
Hong Joo Lee ◽  
Min Kwang Kim ◽  
Seung Hwan Lee ◽  
Jung Hoon Park
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Co2 Separation ◽  
Fiber Membrane ◽  
Membrane Contactors
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