Gusukura Sodium Hydrosulfide: Ivya kera n'Ivyiyumviro
Mu bijanye n’ubuhinga bwa peteroli n’ivy’imiti, ibikorwa vyo gusukura nk’ugusesagura amavuta mu mwuka n’ugucapura amavuta y’ibinyabuzima, akenshi bituma habaho imyuka y’aside. Izo gazi zifise aside muri rusangi zigizwe n’ibice 85%–95% vy’umuyagankuba (H2S), 3%–10% vy’umuyagankuba (CO2), 2%–5% vy’ibinyabuzima bifise ubuzima, n’ibindi bihimba 0,5%–3%.
Amahinguriro mato mato n’ayisumbuye akenshi akora ivyo bidukikije bifise aside mu kubinywa n’umunyu w’amazi y’amazi (NaOH) afise 30%. NaOH ikorana na H2S kugira ngo ibe Sodiyumu y'iyidrosulfure (NaHS). Iyo NaHS iri mu munyuro ishitse kuri 30%, umunyuro uca mu nzira yo gutera. Inyuma y’ugutakaza amazi no kwibanda, NaHS irimwo iraduga ikagera kuri 70%, hanyuma NaHS yashonze igaca igabanywamwo ibipande.
Ariko rero, kubera ko iyo gazi y’aside irimwo CO2, ubuhumane nk’ubw’ivyuma bita sodium carbonate (Na2CO3) buravuka mu gihe c’uguvura, ivyo bikaba bigabanya ubusuku bw’igicuruzwa ca NaHS.
Vyongeye, iyo hakoreshejwe ibipande vy’ingoma zifunguye kugira ngo bice NaHS iyunguruye, iyo NaHS irakunda gukorana n’umwuka w’ikirere, igatuma haba sodium thiosulfate (Na2S2O3), iyo na yo ikaba ishobora kwonona kandi ikaba igoye kubika. Gucapura mu buryo bufunguye na vyo nyene birarekura imyuka ishavura, igahumanya ibidukikije bikorerwamwo.