Inkcazo
I-skid yegesi yendalo yokucocwa kwekhabhoni (i-decarbonization), sisixhobo esibalulekileyo ekucoceni okanye ekunyangweni kwegesi yendalo. I-PSA yiteknoloji yokucocwa kwekhabhoni esezantsi efezekisa ukufunxwa kwe-CO2 kunye nokufunxwa ngokutshintsha uxinzelelo lokusebenza. Le teknoloji idla ngokufunxwa kwaye yahlule i-CO2 kwigesi yendalo kuxinzelelo lokusebenza lwe-0.5 ~ 1MPa, ize emva koko idlule kwi-vacuum desorption ukuze igqibezele ukuhlaziywa kwe-adsorbent. Indlela ye-PSA yeye-adsorption ebonakalayo, nangona xa ithelekiswa ne-chemical adsorption, amandla ayo okufunxwa anqongophele kwaye ukukhetha kwayo kuphantsi; Nangona kunjalo, ukuhamba kwenkqubo ye-PSA kulula, i-adsorbent inobomi obude benkonzo, kulula ukuyivuselela, kwaye isetyenziswa kancinci ngamandla. Kwangaxeshanye, ikwanazo neenzuzo ezifana nokuziqhelanisa okuphezulu, iingenelo ezilungileyo zokusingqongileyo, kunye nokuguquguquka okuphezulu kokusebenza. Ingakumbi xa kujongwana negesi yokufunxwa koxinzelelo oluphezulu, ngokuqhelekileyo akukho mfuneko yokuyicinezela kwakhona. Indlela ye-PSA ingasetyenziswa kubushushu begumbi ngaphandle kwesidingo sokufudumeza nokupholisa, okonga ukusetyenziswa kwamandla okuphindwe kabini xa kuthelekiswa nendlela ye-TSA; Ngaphezu koko, xa kuthelekiswa nendlela ye-TSA efanayo, indlela ye-PSA ifuna idosi encinci kakhulu yokufunxa.
Umxholo wekhabhoni diokside kwigesi yendalo akufanele ube ngaphezulu kwe-3%. Kwaye ikhabhoni diokside emanzini emva kwentsimbi inomhlwa onamandla kakhulu. Ukuba ixabiso le-PH liyafana, umlinganiselo we-asidi yekhabhoni diokside nawo uphezulu, ngoko ke inqanaba lokugqwala kwekhabhoni diokside kwintsimbi nalo liphezulu.
I-Pressure swing adsorption (PSA) yiteknoloji entsha esetyenziselwa ukwahlula umxube wegesi kwiteknoloji yokwahlula i-adsorption. Xa kuthelekiswa nendlela yendabuko yokufunxa iikhemikhali, iteknoloji ye-PSA inomtsalane ngokwezoqoqosho ekususweni nasekubuyiselweni kwe-H2S kunye ne-CO2 kwigesi yendalo, kwaye iphuhliswa ngamandla.
Itekhnoloji yokwahlula igesi ye-PSA ineengenelo zokusebenza okulula, ukulahleka koxinzelelo oluphantsi, ukuphelelwa ngamanzi emzimbeni ngelixa kususwa i-CO2, indawo ephantsi yomhlwa wegesi ecocekileyo namanzi, kwaye iimveliso zinokuhlangabezana neemfuno zokuthunyelwa kwegesi ngaphandle. I-PSA ingasetyenziselwa ukugxila kwe-CO2 kunye nokususwa kwe-sulfurization ekhethiweyo kwigesi yendalo.
Itshati yokuhamba
Ukufunxa kwenziwa phantsi koxinzelelo kwaye ukufunxa kwenziwa phantsi koxinzelelo oluphantsi. Ngenxa yokuba umjikelo wokufunxa umfutshane kwaye ubushushu bokufunxa abunakunyamalala ngexesha, ungasetyenziselwa ukufunxa. Ke ngoko, ubushushu bebhedi yokufunxa obubangelwa bubushushu bokufunxa kunye nobushushu bokufunxa bunotshintsho oluncinci, olunokuthathwa njengenkqubo ye-isothermal. Ukusebenza kwebhedi yokufunxa esisigxina enye, nokuba kukufunxa kobushushu okanye ukufunxa koxinzelelo, kuba i-adsorbent kufuneka ivuselelwe, ukufunxa kuyenzeka ngamaxesha athile. Kwishishini, kusetyenziswa iibhedi ezimbini okanye ngaphezulu zokufunxa, ukuze ukufunxa kunye nokuhlaziya ibhedi yokufunxa kwenziwe ngokutshintshana (okanye ngomjikelo oguqukayo), ukuqinisekisa ukuqhubeka kwenkqubo yokufunxa yonke.
Iimpawu ezisebenzayo
Ukusebenza kakuhle kwe-skid ye-pressure swing adsorption decarbonization yi-90%. I-CO2 inokwahlulwa ngotshintsho loxinzelelo kunye ne-physical adsorption, ngaphandle kwe-chemical reaction. Ukongeza ekususweni kwe-CO2, itekhnoloji ye-PSA isetyenziswa kakhulu ekubuyiseleni nasekucoceni i-H2, CH4, CO, CO2 kunye nezinye iigesi.
