Litaba - The Chemistry of H2S Mitigation. Re kenya letsoho linthong tse 3 tsa bohlokoa tsa molek'hule ea H2S nakong ea ts'ebetso ea phokotso ea H2S.
litaba

litaba

 

Khemistri ea ho fokotsa H2S. Re kenya letsoho linthong tse 3 tsa bohlokoa tsa molek'hule ea H2S nakong ea ts'ebetso ea phokotso ea H2S.

H2S ke khase e nang le asiti 'me e tla letsoai li-amine tse ngata ho amininium hydrosulphide. Leha ho le joalo, karabelo e ka khutlisetsoa morao 'me e theha motheo oa setsi sa ho sebelisa amine hape; letsoai le ntse le aroloa ho khutlela ho H2S le amine ea mahala ka mocheso. Ts'ebetso ena e boetse e tlosa CO2 kaha hape ke khase e nang le asiti.

H2S ke ntho e fokotsang 'me ka hona e ka ba oxidized habonolo. Boemo ba valence ea sebabole ke -2 ho H2S mme e ka oxidized ho 0, elemental sulfur (mohlala, alkaline sodium nitrite kapa hydrogen peroxide) kapa +6, sulphate ka chlorine dioxide, hypohalites joalo-joalo.

H2S ke nucleophile e matla ka lebaka la athomo ea sebabole e leng setsi se bonolo sa Lewis. Li-electrone li ka har'a khetla ea elektronike ea 3, ho feta ho tloha khubung, e tsamaeang le ho falla habonolo. Mohlala o phethahetseng oa sena ke 'nete ea hore H2O ke mokelikeli o nang le ntlha e belang ea 100 C athe H2S, molek'hule e boima, ke khase e nang le ntlha e belang -60 C. Thepa e thata ea Lewis ea athomo ea oksijene e etsa hydrogen e matla haholo. bond, ho feta H2S, ka hona phapang e kholo ea ntlha e belang. Bokhoni ba nucleophilic ea athomo ea sebabole bo sebelisoa karabelong ea triazine, formaldehyde le hemiformal kapa formaldehyde releasers, acrolein le glyoxal.


Nako ea poso: Aug-30-2022