Ukususwa kwegesi ye-Acid

Le nkqubo isusa i-H2S, i-CO2 kunye ne-organic sulfur (ezifana ne-mercaptan kunye ne-COS) kwi-gas yokutya ukwenzela ukuba ihambelane nenkqubo ye-LNG yokunyibilika okanye imigangatho yokuthengisa igesi yokuthengisa.Ukuchaneka, i-amine counter-okwangoku iqhagamshelana nomthombo wegesi ngaphakathi kwikholamu ye-absorber, kunye nezinto ezinobungozi zegesi ze-asidi zifunxwa yi-amine yonyango.


Iinkcukacha zeMveliso

Ukususwa kwegesi ye-asidi, ekwaziwa njengonyango lwegesi ye-amine, ukukhuhla i-amine kunye nokuthambisa igesi.Le nkqubo isusa i-H2S, i-CO2 kunye ne-organic sulfur (ezifana ne-mercaptan kunye ne-COS) kwi-gas yokutya ukwenzela ukuba ihambelane nenkqubo ye-LNG yokunyibilika okanye imigangatho yokuthengisa igesi yokuthengisa.Ukuchaneka, i-amine counter-okwangoku iqhagamshelana nomthombo wegesi ngaphakathi kwikholamu ye-absorber, kunye nezinto ezinobungozi zegesi ze-asidi zifunxwa yi-amine yonyango.Ekubeni le yinkqubo emanzi, inkqubo yokuchithwa kwamanzi nge-molecular sieve iyimfuneko kwinqanaba lokugqibela.Ekubeni ezinye iinkqubo azikwazi ukususa isulfure eziphilayo, ibhedi eyongezelelweyo ye-molecular sieve ngamanye amaxesha ixhotyiswe ngaloo msebenzi.

Ukunyangwa kwegesi kwe-amines okwahlukeneyo kunje
I-Diethanolamine (DEA)
I-Monoethanolamine (MEA)
IMethyldiethanolamine (MDEA)

Ezona amines zisetyenziswa ngokuqhelekileyo kwizityalo zoshishino yi alkanolamines DEA, MEA, kunye MDEA.Ezi amines zikwasetyenziswa kwiindawo ezininzi zokucokisa ioyile ukususa iirhasi ezimuncu kwiihydrocarbon ezingamalwelo ezifana nerhasi yepetroleum engamanzi (LPG).

Acid Gas Removal 01

Acid Gas Removal 02

Acid Gas Removal 03

Iigesi ze-Acid eziveliswa kwiinkqubo ze-gasification ikakhulu ziquka i-hydrogen sulfide (H2S), i-carbonyl sulfide (COS), kunye ne-carbon dioxide (CO2).I-Syngas ephuma kwiinkqubo zokususa i-particle kunye ne-gas conditioning systems, ngokuqhelekileyo ikufuphi neqondo lobushushu elikwi-100 ° F, kufuneka icocwe kwiigesi ze-asidi ezinesulfure ukuhlangabezana nokuba yimimiselo yokukhutshwa kwemekobume, okanye ukukhusela i-catalysts esezantsi yokusetyenziswa kweekhemikhali.Ukusetyenziswa komjikelo odityanisiweyo we-gasification (IGCC), imimiselo yokusingqongileyo ifuna ukuba umxholo wesulfure we-syngas yemveliso uncitshiswe ube ngaphantsi kweengxenye ze-30 ngesigidi ngesigidi (ppmv) ukwenzela ukuhlangabezana nethagethi yokukhutshwa kwegesi engaphantsi kwe-4 ppmv sulfur. idayoksayidi (SO2)1.Kwizicelo ze-IGCC, apho ukucutha okukhethiweyo kwe-catalytic (SCR) kuyadingeka ukunciphisa ukukhutshwa kwe-NOx ukuya ngaphantsi kwe-10 ppmv, umxholo we-syngas sulphur unokufuneka uthotywe ukuya kwi-10 ukuya kwi-20 ppmv ukwenzela ukuthintela ukungcoliswa kwe-ammonium bisulfate ye-jeneretha yokubuyisela ubushushu ( HRSG) imibhobho yokugqibela ebandayo.Ukuveliswa kwamafutha okanye ukuveliswa kweekhemikhali, i-downstream synthesis catalyst sulfur tolerance ichaza inqanaba lokususwa kwesulfure, elinokuba ngaphantsi kwe-0.1 ppmv.

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