Incazelo
I-Natural gas decarburization (decarbonization) skid, iyisisetshenziswa esibalulekile ekuhlanzweni noma ekwelapheni igesi yemvelo.I-PSA iwubuchwepheshe obuphansi bokukhipha ikhabhoni yamandla obufeza i-CO2 adsorption and desorption ngokushintsha ingcindezi yokusebenza. Lobu buchwepheshe buvamise ukukhangisa futhi buhlukanise i-CO2 kugesi yemvelo ngengcindezi yokusebenza engu-0.5~1MPa, bese bungena ku-vacuum desorption ukuze kuqedelwe ukuvuselelwa kwe-adsorbent. Indlela ye-PSA ingeye-adsorption ebonakalayo, nakuba iqhathaniswa ne-chemical adsorption, umthamo wayo wokukhangisa ulinganiselwe futhi ukukhetha kwayo kuphansi; Kodwa-ke, ukugeleza kwenqubo ye-PSA kulula, i-adsorbent inokuphila kwesevisi ende, kulula ukuyivuselela, futhi isebenzisa amandla aphansi. Ngasikhathi sinye, futhi inezinzuzo ezifana ne-automation ephezulu, izinzuzo ezinhle zemvelo, kanye nokuguquguquka okuphezulu kokusebenza. Ikakhulukazi uma ubhekene ne-high-pressure feed gas, ngokuvamile asikho isidingo sokuyicindezela futhi. Indlela ye-PSA ingasetshenziswa ekamelweni lokushisa ngaphandle kwesidingo sokufudumeza nokupholisa, ukonga izikhathi ezingu-1-2 zokusetshenziswa kwamandla uma kuqhathaniswa nendlela ye-TSA; Ngaphezu kwalokho, uma kuqhathaniswa nendlela ye-TSA efanayo, indlela ye-PSA idinga umthamo omncane kakhulu we-adsorption.
Okuqukethwe kwe-carbon dioxide kuzinga lekhwalithi yegesi yemvelo akufanele kube ngaphezu kuka-3%. Futhi i-carbon dioxide emanzini ngemva kokuba insimbi ine-corrosive enamandla kakhulu. Uma inani le-PH lifana, isilinganiso se-acidity ye-carbon dioxide nayo iphakeme, ngakho izinga lokugqwala kwe-carbon dioxide ensimbi nalo liphakeme.
I-Pressure swing adsorption (PSA) ubuchwepheshe obusha obusetshenziselwa ukuhlukanisa ingxube yegesi kubuchwepheshe bokuhlukanisa i-adsorption. Uma kuqhathaniswa nendlela evamile yokumunca amakhemikhali, ubuchwepheshe be-PSA buyakhanga ngokomnotho ukuze kukhishwe futhi kutholakale i-H2S ne-CO2 egesini yemvelo, futhi kuthuthukiswa ngamandla.
Ubuchwepheshe bokuhlukaniswa kwegesi ye-PSA bunezinzuzo zokusebenza okulula, ukulahlekelwa kwengcindezi ephansi, ukuphelelwa amandla kwamanzi ngenkathi kususwa i-CO2, indawo ephansi yamazolo yegesi ehlanzekile namanzi, futhi imikhiqizo ingahlangabezana nezidingo zokuthunyelwa kwegesi. I-PSA ingasetshenziselwa ukugxilisa ingqondo kwe-CO2 kanye ne-desulfurization ekhethiwe kugesi yemvelo.
Ishadi eligelezayo
I-Adsorption yenziwa ngaphansi kwengcindezi futhi i-desorption yenziwa ngaphansi kwengcindezi encishisiwe. Ngenxa yokuthi umjikelezo we-adsorption mfushane futhi ukushisa kwe-adsorption akukwazi ukuchithwa ngesikhathi, kungasetshenziselwa ukuchithwa. Ngakho-ke, izinga lokushisa lombhede we-adsorption obangelwa ukushisa kwe-adsorption nokushisa kwe-desorption kunoshintsho oluncane, olungabhekwa njengenqubo ye-isothermal. Ukusebenza kombhede ogxilile we-adsorption, noma ngabe i-adsorption swing yezinga lokushisa noma i-press swing adsorption, ngoba i-adsorbent idinga ukukhiqizwa kabusha, i-adsorption iyenzeka ngezikhathi ezithile. Embonini, imibhede emibili noma ngaphezulu yokukhanga iyasetshenziswa, ukuze ukukhangisa nokuvuselelwa kombhede we-adsorption kwenziwe ngokushintshana (noma ngokushintshana komjikelezo), ukuze kuqinisekiswe ukuqhubeka kwayo yonke inqubo ye-adsorption.
Izici ezisebenzayo
Ukusebenza kahle kwe-press swing adsorption decarbonization skid ngu-90%.CO2 ingahlukaniswa ngokushintsha kwengcindezi nokukhangiswa ngokomzimba, ngaphandle kokusabela kwamakhemikhali. Ngaphandle kokususwa kwe-CO2, ubuchwepheshe be-PSA busetshenziswa kabanzi ekubuyiseleni nasekuhlanzweni kwe-H2, CH4, CO, CO2 namanye amagesi.
