Okulongoosa Sodium Hydrosulfide: Ensibuko n’okutegeera

Mu makolero g’amafuta n’eddagala, enkola z’okulongoosa amafuta nga vacuum distillation ne catalytic cracking zitera okuvaamu ggaasi za asidi. Gaasi zino eza asidi okutwalira awamu zirimu ebitundu 85%–95% ebya haidrojeni salufaayidi (H2S), 3%–10% kaboni dayokisayidi (CO2), 2%–5% ggaasi ez’obutonde, ne 0.5%–3% ebitundu ebirala.

Ebifo ebirongoosa ebitonotono n’ebya wakati bitera okulongoosa ggaasi zino eza asidi nga zizinyiga n’ekisengejjo kya sodium hydroxide (NaOH) 30%. NaOH ekolagana ne H2S okukola ekirungo kya sodium hydrosulfide (NaHS) (NaHS) nga bwe kiri. Ekisengejjo kya NaHS mu kisengejjero bwe kituuka ku bitundu 30%, ekisengejjero kiyita mu nkola y’okusengejja. Oluvannyuma lw’okuggwaamu amazzi n’okusengejja, ebirimu NaHS byeyongera okutuuka ku bitundu 70%, olwo NaHS esaanuuse n’esalasala mu bikuta.

Naye olw’okuba ggaasi za asidi zirimu CO2, obucaafu nga sodium carbonate (Na2CO3) bukolebwa mu kiseera ky’okulongoosa, ekikendeeza ku bulongoofu bw’ekintu kya NaHS.

Okugatta ku ekyo, ebiwujjo by’engooma ebiggule bwe bikozesebwa okusalasala NaHS esaanuuse, NaHS etera okukolagana ne okisigyeni mu mpewo, ne kikola sodium thiosulfate (Na2S2O3), ekitera okwonooneka era nga kizibu okutereka. Okusalasala mu lujjudde nakyo kifulumya ggaasi ezinyiiza, ne zicaafuwaza embeera y’okufulumya.

Nyiga wano okufuna quote eya discounted ku sodium hydrosulfide, wajja kubaawo ebyewuunyisa.