Kufambira mberi uye kuongororwa kwehupfumi kwekugadzirwa kwehydrogen ne electrolysis yeakasimba oxides
Solid oxide electrolyzer (SOE) inoshandisa mhute yemvura yakakwirira-yepamusoro (600 ~ 900 ° C) ye electrolysis, iyo inoshanda kupfuura alkaline electrolyzer uye PEM electrolyzer. Mumakore ekuma1960, United States neGermany dzakatanga kuita tsvakurudzo pamusoro pemhepo inopisa yemvura SOE. Nheyo yekushanda yeSOE electrolyzer inoratidzwa muMufananidzo 4. Recycled hydrogen uye mhute yemvura inopinda maitiro ekugadzirisa kubva kune anode. Hupfu hwemvura hunoiswa electrolyzed muhydrogen pane cathode. Iyo O2 inogadzirwa necathode inofamba nepakati pe electrolyte yakasimba kuenda kune anode, iyo inobatana zvakare kuita okisijeni uye kuburitsa maerekitironi.
Kusiyana nealkaline uye proton exchange membrane electrolytic masero, iyo SOE electrode inobata nekusangana kwemhute yemvura uye inotarisana nedambudziko rekuwedzera nzvimbo yekubatanidza pakati pe electrode uye mvura mhute kusangana. Naizvozvo, iyo SOE electrode kazhinji ine porous chimiro. Chinangwa chemvura vapor electrolysis ndechekuderedza simba resimba uye kuderedza mutengo wekushandisa weyakajairwa mvura yemvura electrolysis. Muchokwadi, kunyangwe iyo yakazara simba inodiwa yekuora kwemvura reaction inowedzera zvishoma nekuwedzera tembiricha, simba remagetsi rinodiwa rinodzikira zvakanyanya. Sezvo tembiricha ye electrolytic inowedzera, chikamu chesimba rinodiwa chinopihwa sekupisa. Iyo SOE inokwanisa kugadzira haidrojeni pamberi pehupo hwepamusoro-tembiricha yekupisa sosi. Sezvo magetsi enyukireya anodziya gasi-akatonhodzwa achikwanisa kudziyisa kusvika 950°C, simba renyukireya rinogona kushandiswa sechitubu chesimba reSOE. Panguva imwecheteyo, tsvagiridzo inoratidza kuti simba rinogona kudzokororwa senge geothermal simba zvakare rine mukana wekupisa sosi yekupisa electrolysis. Kushanda pakupisa kwakanyanya kunogona kuderedza bhatiri voltage uye kuwedzera maitiro ekuita, asi zvakare inotarisana nedambudziko rekugadzikana kwemafuta uye kuiswa chisimbiso. Mukuwedzera, iyo gasi inogadzirwa ne cathode isanganiswa yehydrogen, inoda kuwedzera kuparadzaniswa uye kucheneswa, kuwedzera mutengo uchienzaniswa neyakajairwa mvura yemvura electrolysis. Kushandiswa kweproton-conducting ceramics, yakadai se strontium zirconate, inoderedza mari yeSOE. Strontium zirconate inoratidza yakanakisa proton conductivity pa700 ° C, uye inokodzera kune cathode kuburitsa yakakwira kuchena hydrogen, kurerutsa mudziyo wemagetsi emagetsi.
Yan et al. [6] yakashuma kuti zirconia ceramic tube yakasimbiswa ne calcium oxide yakashandiswa seSOE yegadziriro yekutsigira, nzvimbo yekunze yakaputirwa netete (pasi pe0.25mm) porous lanthanum perovskite seanode, uye Ni / Y2O3 yakagadzikana calcium oxide cermet se cathode. Pa 1000 ° C, 0.4A/cm2 uye 39.3W simba rekuisa, iyo haidhirojeni yekugadzira simba rechikamu i17.6NL/h. Izvo zvisingabatsiri zveSOE ndeyekuwedzeredza kunokonzerwa nekurasikirwa kwepamusoro kweohm kunowanzoitika pakubatana pakati pemasero, uye kuwedzera kwepamusoro-soro nekuda kwemiganhu yekufambisa kwemhepo yekufambisa. Mumakore achangopfuura, planar electrolytic masero akakwezva kutarisisa kwakawanda [7-8]. Kusiyana nemaseru tubular, masero akatsetseka anoita kuti kugadzira kuwedzere compact uye kunatsiridza kugadzirwa kwehydrogen [6]. Parizvino, chipingamupinyi chikuru chekushandiswa kwemaindasitiri eSOE ndiko kugadzikana kwenguva refu kwesero re electrolytic [8], uye matambudziko ekuchembera kwe electrode uye deactivation anogona kukonzerwa.
Nguva yekutumira: Feb-06-2023