Ukuveliswa komzobo obandayo we-petroleum wokuqhekeka ityhubhu inokuqengqeleka ngokubanda, ukutsalwa ngokubanda, ukutsalwa ngokubanda, ukuvelisa umxube obandayo. Ukusebenzisa inkqubo yokudweba, isixhobo esilula, utyalo-mali oluphantsi, ukusebenza lula kunye nokugcinwa njalo njalo. Kodwa i-drawback linyathelo eliphakathi kwabaninzi, izinga lamaplanga. Ukusebenzisa izixhobo zenkqubo ebandayo kunzima ngakumbi, kunye notyalo-mali olungaphezulu, kodwa kunokunciphisa iinkqubo eziphakathi, ukuphucula isivuno, ubungakanani bemveliso yensimbi engenamthungo ephezulu, kunye nokuchaneka komphezulu, ngokukodwa kwi-tube echanekileyo engenamthungo kunye ne-tube ebhityileyo engenamthungo.

Ngenxa yokulinganiselwa kugqithiso lokusila ngenani kunye nexabiso leenkcazo zemveliso egqityiweyo ayinakuba kakhulu; ebandayo-yaqengqeleka kunye nebandayo ezitsalwa inkqubo yemveliso edibeneyo ukuvelisa imveliso egqityiweyo, kunye nomgangatho olungileyo processing intsimbi ixesha umjikelo lifutshane, ukunciphisa degreasing intermediate, unyango ubushushu, isiqaqa, Jiao iinkqubo ezithe tye, ukonga amandla, ukunciphisa ukusetyenziswa kwesinyithi, iinkcukacha ezingaphantsi ekrwada impahla kunye njalo njalo. I-petroleum yokuqhekeka ityhubhu ingabanda i-pickling acid, i-hydrochloric acid, i-acid exutywe, i-hydrofluoric acid kunye nokunye. Intsimbi yeCarbon kunye ne-alloy yensimbi engenamthungo ngokufanelekileyo i-asidi ye-sulfuric, i-carbon structural steel ephezulu kunye ne-alloy yensimbi echanekileyo echanekileyo efanelekileyo kwi-hydrochloric acid.