IsiTshayina (Esenziwe lula)
Igesi yepetroli enepetroli yenye yeemveliso zepetroleum. IGAMA LESI-ELONI liyi-yotywala igesi, okanye i-lpg kancinci. Yirhasi engenabala, igesi eguqukayo efunyenwe ngokucinezela, ukupholisa kunye nokucoca irhasi yerhasi okanye igesi yendalo (kubandakanya igesi ye-oyile). Igesi yepetroli efunyanwe irhasi efunyenwe kwi-propane ye-Propane (ngaphezu kwe-95%), i-Propylene, i-Pentane, kwaye iqulethe i-pentane, i-pentene, iqulethe i-sulfur ingcoliseko.
Ukuqulunqwa kwegesi yotywala obufunyenwe kwigesi yendalo kungekho lula kwi-Olefins. Irhasi yepetroli enepetroli esetyenziswa ikakhulu njenge-Petrochemical Shiaw Trackess Brackerbon ukuvelisa i-Englone okanye i-Steam Guqula ukuvelisa i-genthesi yerhasi, kwaye inokusetyenziswa njenge-Iniwe ye-inition, i-injini ye-injini ye-injini. Izalathisi zayo ezisemgangathweni ziyintsalela yokuphuma kwintsalela kunye nomxholo wesalfure, njl njl, kwaye ngamanye amaxesha umxholo we-Olefin ulawulwa. Igesi yepetroli enepetroli yinto enokutsha. Xa umxholo emoyeni ufikelela kwinqanaba elithile loxinzelelo, iya kuqhuma xa idibana nelangatye elivulekileyo.