Chemistry ntawm H2S Mitigation. Peb tau nqis peev ntawm 3 yam tseem ceeb ntawm H2S molecule thaum lub sij hawm tus txheej txheem ntawm H2S mitigation.
H2S yog cov roj acidic thiab yuav ntsev ntau amines rau aminium hydrosulphide. Cov tshuaj tiv thaiv txawm li cas los xij thim rov qab thiab tsim lub hauv paus ntawm amine recycling unit; cov ntsev raug dissociated rov qab mus rau H2S thiab dawb amine los ntawm tshav kub. Cov txheej txheem no tseem tshem tawm CO2 vim nws kuj yog cov roj acidic.
H2S yog tus neeg sawv cev txo qis thiab yog li tuaj yeem nkag oxidized. Lub xeev valence ntawm leej faj yog -2 nyob rau hauv H2S thiab tuaj yeem oxidized rau 0, elemental sulfur (xws li alkaline sodium nitrite lossis hydrogen peroxide) lossis +6, sulfate los ntawm chlorine dioxide, hypohalites thiab lwm yam.
H2S yog ib qho muaj zog nucleophile vim yog sulfur atom uas yog lub hauv paus Lewis. Cov electrons yog nyob rau hauv 3 electron plhaub, ntxiv los ntawm lub nucleus, ntau mobile thiab yooj yim tsiv. Ib qho piv txwv zoo tshaj ntawm qhov no yog qhov tseeb tias H2O yog cov kua dej uas muaj qhov kub ntawm 100 C thaum H2S, hnyav dua molecule, yog cov pa roj nrog kub taw tes -60 C. Lub zog Lewis cov cuab yeej tseem ceeb ntawm cov pa oxygen atom tsim muaj zog hydrogen. daim ntawv cog lus, ntau dua li H2S, yog li qhov sib txawv ntawm qhov sib txawv loj. Lub peev xwm nucleophilic ntawm sulfur atom yog siv hauv cov tshuaj tiv thaiv nrog triazine, formaldehyde thiab hemiformal lossis formaldehyde tso tawm, acrolein thiab glyoxal.
Post lub sij hawm: Aug-30-2022
