Hydrogen production from industrial wastewaters: An integrated reverse electrodialysis - Water electrolysis energy system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43915865" target="_blank" >RIV/60461373:22310/18:43915865 - isvavai.cz</a>

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S0959652618326209?token=7B71A4C697B87DF5A874C6A4D37C2FBD7E20C3447522F1E6D77E58B7D55ED45773AC34193008E92073FAC41117052920" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0959652618326209?token=7B71A4C697B87DF5A874C6A4D37C2FBD7E20C3447522F1E6D77E58B7D55ED45773AC34193008E92073FAC41117052920</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2018.08.269" target="_blank" >10.1016/j.jclepro.2018.08.269</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydrogen production from industrial wastewaters: An integrated reverse electrodialysis - Water electrolysis energy system

Popis výsledku v původním jazyce

This work presents a novel approach combining reverse electrodialysis (RED) and alkaline polymer electrolyte water electrolysis (APWEL) for renewable hydrogen production. APWEL is fuelled by salinity gradient power (SGP) extracted from sulfate (SO42-)-rich industrial wastewater. The performance of a pilot-scale RED unit (200 cells, active area: 31.5 x 63.5 cm(2)), using salt solutions mimicking sulfate -rich waste streams (0.01-0.3 M Na2SO4), was evaluated. An open circuit voltage (OCV) of 12.3 V, a maximum power density of 0.22 W/m(2)MP (MP: membrane pair) and internal area resistance of 43.2 Omega cm(2)/cell were recorded by using 0.01 M/0.3 M Na2SO4 solutions at 35 degrees C. The APWEL stack (6 cells, active area: 5 x 5 cm(2)), equipped with Ni foam electrodes and heterogeneous anion-selective membranes, was tested with varying concentrations of liquid electrolyte (0.85-2.5 M KOH) and varying temperatures (28-48 degrees C). The APWEL stack attained a maximum current density of 110 mA/m(2) at 1.85 V/cell (i.e. 11 V per stack), 2.5 M KOH and 48 C. Under these conditions, the integrated system exhibited a maximum hydrogen production rate of 50 cm(3)/h-cm(2). This study opens up a new perspective on renewable hydrogen production fuelled by non -intermittent SGP from SO42--rich industrial effluents. (C) 2018 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Hydrogen production from industrial wastewaters: An integrated reverse electrodialysis - Water electrolysis energy system

Popis výsledku anglicky

This work presents a novel approach combining reverse electrodialysis (RED) and alkaline polymer electrolyte water electrolysis (APWEL) for renewable hydrogen production. APWEL is fuelled by salinity gradient power (SGP) extracted from sulfate (SO42-)-rich industrial wastewater. The performance of a pilot-scale RED unit (200 cells, active area: 31.5 x 63.5 cm(2)), using salt solutions mimicking sulfate -rich waste streams (0.01-0.3 M Na2SO4), was evaluated. An open circuit voltage (OCV) of 12.3 V, a maximum power density of 0.22 W/m(2)MP (MP: membrane pair) and internal area resistance of 43.2 Omega cm(2)/cell were recorded by using 0.01 M/0.3 M Na2SO4 solutions at 35 degrees C. The APWEL stack (6 cells, active area: 5 x 5 cm(2)), equipped with Ni foam electrodes and heterogeneous anion-selective membranes, was tested with varying concentrations of liquid electrolyte (0.85-2.5 M KOH) and varying temperatures (28-48 degrees C). The APWEL stack attained a maximum current density of 110 mA/m(2) at 1.85 V/cell (i.e. 11 V per stack), 2.5 M KOH and 48 C. Under these conditions, the integrated system exhibited a maximum hydrogen production rate of 50 cm(3)/h-cm(2). This study opens up a new perspective on renewable hydrogen production fuelled by non -intermittent SGP from SO42--rich industrial effluents. (C) 2018 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/GA16-20728S" target="_blank" >GA16-20728S: Inovativní přístup k elektrokatalýze vývoje vodíku v alkalické elektrolýze vody</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Cleaner Production

ISSN

0959-6526

e-ISSN

—

Svazek periodika

203

Číslo periodika v rámci svazku

2018

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

418-426

Kód UT WoS článku

000447568700032

EID výsledku v databázi Scopus

2-s2.0-85053205864