Gasi rechisikigo ndiro simba rinokosha rinoshandiswa zvakanyanya pasi rose. Zvisinei, rinowanzo svibiswa netsvina yakaita secarbon dioxide (CO2), iyo inofanira kubviswa isati yashandiswa mumabasa akasiyana-siyana. Imwe yenzira dzakakurumbira dzekuita izvi ndeyekushandisa pressure swing adsorption (PSA), inozivikanwa nekushanda kwayo nesimba uye kuvimbika mukugadzirisa gasi rechisikigo. Tekinoroji yePSA inopa nzira iri nyore uye isingadhuri yeku bvisa kabhoni dhayiokisijeni kubva mugasi rechisikigo.
Iyo Maitiro ekubvisa kabhoni muPSA Kazhinji zvinosanganisira kusveta kabhoni diokisijeni uchishandisa zvinhu zvakanonamira zvakaita se activated carbon kana molecular seeves. Chinhu chinosveta kabhoni diokisijeni chine simba guru rekubvisa tsvina iyi kubva mumhepo ine gasi rechisikigo. Maitiro ekusveta kabhoni diokisijeni anowanzo itika pakumanikidzwa kwakanyanya, izvo zvinowedzera kuparadzaniswa kwekabhoni diokisijeni kubva kune mamwe magasi ari mumusanganiswa.
Kana kabhoni dhayokisaidhi yatorwa nezvinhu zvinonyungudutsa, gasi rechisikigo rakacheneswa rinoburitswa roendeswa kunhanho inotevera mukuita uku. Zvinhu zvinonyungudutsa zvine kabhoni dhayokisaidhi zvakawanda zvinobva zvadzorerwa, kazhinji uchishandisa nzira inonzi depressurization. Munguva iyi, kumanikidzwa kwezvinhu zvinonyungudutsa kunoderera, zvichiita kuti kabhoni dhayokisaidhi ibude uye ibudiswe kubva muzvinhu. Kabhoni dhayokisaidhi inoburitswa inogona kubatwa zvakachengeteka uye kugadziriswa, nepo zvinhu zvinonyungudutsa zvinogona kushandiswazve kuti zvibviswe kabhoni dhayokisaidhi. Tekinoroji yePSA ine mabhenefiti akawanda akakosha ekuchenesa gasi rechisikigo. Chekutanga, inoshanda zvakanyanya, ine mwero wekubvisa CO2 nekukurumidza uye nguva dzose. Chechipiri, inogona kukura uye inogona kugadziriswa zvichienderana nezvinodiwa zvakasiyana zvekubata gasi, zvichiita kuti ive yakakodzera mabasa makuru nemadiki.
Chechitatu, inopa mwero wepamusoro wekuita otomatiki unogonesa kushanda kwakasimba uye kwakavimbika pasina kupindira kukuru nemaoko. Kune misiyano yakawanda yakasiyana yetekinoroji yePSA yekugadzira gasi rechisikigo, imwe neimwe iine hunhu hwayo hwakasiyana uye zvakanakira. Semuenzaniso, mamwe maitiro ePSA anoshandisa mibhedha miviri yakasiyana yeadsorbent, nemubhedha mumwe uchidyisa CO2 ukuwo mumwe uchigadzirwazve. Izvi zvinobvumira kushanda nguva dzose, nemubhedha mumwe uchigara uri muchikamu chekudyisa uye mumwe uri muchikamu chekudzoreredza. Mimwe misiyano inosanganisira mhando dzakasiyana dzezvinhu zvinodyisa, zvakaita semibhedha yakarongedzwa kana zvinhu zvemubhedha wakasimba. Kunyangwe tekinoroji yePSA ine zvakanakira zvakawanda, inewo miganho. Chimwe chezvinetso zvikuru kudiwa kwekugadzirisa ma process parameters kuti uwane kushanda kwakakodzera kweCO2 uku uchideredza kushandiswa kwesimba nemari yekushandisa. Izvi zvinogona kuda kutarisisa zvinhu zvakaita sekumanikidzwa, tembiricha uye kuyerera kwegasi, uye kugadzirisa kuri kuitwa kuti uve nechokwadi chekuti zvinoshanda zvakanaka.
Pamusoro pezvo, mamwe masisitimu ePSA anogona kunge achinzwa shanduko mukugadzirwa kwegasi uye tsvina, izvo zvinogona kukanganisa maitiro ekunyungudutsa uye ekugadzirisa. Muchidimbu, kugadzirisa gasi rechisikigo uchishandisa tekinoroji yekunyungudutsa kwepressure inopa nzira inoshanda uye yakavimbika yekubvisa kabhoni dioksijeni, zvichibatsira kugadzira simba rakachena uye rinogara kwenguva refu. Sezvo kudiwa kwegasi rechisikigo muindasitiri kuri kuramba kuchikura, kuvandudzwa nekunatsiridzwa kwetekinoroji yePSA kunogona kuita basa rakakosha mukugadzirisa gasi rechisikigo mumakore anotevera.
Nguva yekutumira: Gumiguru-29-2023