Ukwelashwa kokushisa okungaphezulu kuwuchungechunge lwezinqubo ezisetshenziswa ikakhulukazi ngezingxenye zensimbi ezisebenzisa ukufudumeza ngezindlela ezihlukahlukene ngezikhathi ezahlukene ukuze kuzuzwe okudinga indawo engaphezulu.Enye yezinqubo ezivame ukusetshenziswa zokwelashwa kokushisa kwezingxenye zensimbi ziyaqina.Njengoba igama liphakamisa, ukuqina kubangela indawo eqinile engxenyeni yensimbi.

Ekwenzeni ukuqina komhlaba, ingaphezulu lengxenye yensimbi iqala ukushiselwa kuzinga lokushisa lokuguqulwa elingu-800 ℃ noma ngaphezulu futhi inani elithile lekhabhoni lincibilika phezulu.Ingxenye ibe isipholiswa phansi kusetshenziswa uwoyela noma amanzi kuyilapho i-carbon is supersaturated engxenyeni engaphezulu.Lokhu kukhiqiza indawo eqinile.Umbala ongaphezulu wezingxenye eziqinile ushintsha ube mpunga obumnyama.

I-Prolean inikeza ukwelashwa kokushisa okungaphezulu kwezingxenye zensimbi.