Incazelo
I-skid yegesi yemvelo yokususa i-carburization (ukususa i-carburization), iyithuluzi elibalulekile ekuhlanzweni noma ekuphathweni kwegesi yemvelo.
Okuqukethwe kwe-carbon dioxide ensimbini yemvelo akufanele kube ngaphezu kuka-3%. Futhi i-carbon dioxide emanzini ngemva kokuba insimbi inamandla kakhulu okugqwala. Uma inani le-pH lifana, isilinganiso se-acidity se-carbon dioxide naso siphakeme, ngakho-ke izinga lokugqwala kwe-carbon dioxide ensimbini nalo liphakeme.
Ngakho-ke, ngesidingo sokususwa kwegesi yemvelo, kuyadingeka ukuthi kube nomphumela oqinile wokushisa enkambisweni yokususwa kwegesi, ngakho-ke igesi yemvelo ngemva kokwelashwa kokushisa kwe-humidification ayifaneleki ukususwa kwegesi yemvelo. Kodwa-ke, uma singacabangi ngemikhiqizo yokususwa kwegesi yemvelo, kodwa samukele indlela yokuhlukanisa amazinga okushisa aphansi, kuzoholela ngqo ekusebenzeni kahle kokususwa kwegesi yemvelo. Njengamanje, ukusetshenziswa kokwelashwa kokususwa kwegesi yemvelo kungenza kuphela indlela ye-ammonia yotshwala.
Ishadi lokugeleza
Ngokwezici zobuchwepheshe be-MDEA, inqubo yokuvuselela ingxenye iyadingeka ukuze kukhishwe igesi yemvelo. Phakathi kwazo, igesi yemvelo ingena kakhulu ku-absorber isuka phansi, futhi ithintane nesisombululo se-MDEA kusukela phezulu kuya phansi ku-absorber, kodwa iningi lesisombululo se-carbon dioxide kugesi yemvelo liyasuswa i-carbon. Igesi yemvelo ehlanziwe ngamanzi ihlukaniswa kakhulu ngumbhoshongo wokumunca bese ipholiswa, bese ikhishwa amanzi. I-MDEA kusukela phansi kombhoshongo wokumunca idinga amandla ukuze ingene ekwelashweni kokuphelelwa amanzi, kanti ingxenye engenhla yombhoshongo wokumunca ingena embhoshongweni. Ngemva kokususwa kwengcindezi, i-carbon dioxide emuncwayo iyaxazululwa futhi ishiswe ngomusi phakathi kombhoshongo wokuvuselela. Kungale ndlela kuphela lapho izinga lokushisa lesixazululo lingagcinwa khona. Ngemva kokuba isisombululo se-MDEA esivela phansi kombhoshongo sesipholile, isixazululo singena phezulu kokumuncwa, ukuze kuqedwe inqubo yonke yokujikeleza kwesisombululo. Ngaphezu kwalokho, ukuze kuqinisekiswe ngempumelelo ukuthi isixazululo singaphinde sisetshenziswe futhi sihlanzwe futhi, kudingeka u-15% wesisombululo ukuze kususwe isixazululo. Ukuze kugcinwe inqubo yokususa igesi yemvelo, uhlelo luzovuselelwa ngesisombululo.
Izici ezisebenzayo
Ukusebenza kahle kokususa i-carbonization ngendlela ye-MDEA kungu-99%.
Ukuze kususwe i-carbon dioxide (CO2) kugesi yokuphakelayo, isixazululo samanzi esine-alcohol amine njenge-solvent siphendula ne-CO2 kugesi yokuphakelayo. Ukulahleka kwegesi okuphansi kanye nokusetshenziswa kwamandla aphezulu. Indlela ye-alcohol amine ingasetshenziswa futhi ukususa i-H2S kugesi yokuphakelayo.
