Ukuhlanza i-Sodium Hydrosulfide: Imvelaphi kanye nokuzwisisa

Emkhakheni wephethroliyamu namakhemikhali, iinkambo zokucwengisisa ezifana nokuvundiswa kwe-vacuum nokuqhekeka kwe-catalytic kuvamise ukukhiqiza amagesi ane-esidi. Iigesi ezine-esidi zivamise ukuba ne-85%-95% ye-hydrogen sulfide (H2S), i-3%-10% ye-carbon dioxide (CO2), i-2%-5% yamagesi we-organic, kanye ne-0.5%-3% yezinye izinto.

Iindawo zokucwengisisa ezincani neziphakathi nendawo zivamise ukuphatha amagesi ane-esidi ngokuwamunya ngesisombululo se-sodium hydroxide (NaOH) esingu-30%. I-NaOH ihlangana ne-H2S ukwakha isodiyamu ye-hydrosulfide (NaHS). Lokha ukugxila kwe-NaHS esixazululweni kufinyelela ku-30%, isixazululo sidlula enqubweni yokugxila. Ngemva kokuphelelwa ngamanzi nokugxila, okuqukethwe kwe-NaHS kukhuphuka kube ngu-70%, bese i-NaHS encibilikileko isikwa ibe ziinqhema.

Kodwana, njengombana amagesi ane-asidi ane-CO2, ukusilaphazeka okufana ne-sodium carbonate (Na2CO3) kuyakhiwa ngesikhathi sokwelatjhwa, okwehlisa ukuhlanzeka komkhiqizo we-NaHS.

Phezu kwalokho, lokha nakusetjenziselwa ukusika i-NaHS encibilikileko, i-NaHS ijayele ukusabelana ne-oksijini emoyeni, yakha i-sodium thiosulfate (Na2S2O3), ethambekele ekuwohlokeni begodu kube budisi ukuyigcina. Ukusika okuvulekileko kubuye kukhiphe amagesi acasulako, okusilaphaza indawo yokukhiqiza.

Tlika lapha ukuthola isaphulelo se-sodium hydrosulfide, kuzokuba nezimanga.