Sashen rage yawan sinadarin sulfur na reshen filin mai na PetroChina Changqing yana da karfin sarrafawa na 40000 Nm3 da 1.0 MPa.
skid na MDEA desulphurization (desulfurization), wanda kuma ake kira MDEA sweeting skid, muhimmin abu ne a cikin tsarkake iskar gas ko kuma sanyaya iskar gas.
skid ɗin cire sulfurization na MDEA don iskar gas koyaushe ana ɗaukarta ne lokacin da carbon sulfur na iskar gas ɗin abinci yake da yawa, kuma lokacin da aka cire H22Ana buƙatar S don samun iskar acid da ta dace da sarrafa masana'antar Claus, da sauran yanayi da za a iya zaɓa don cire H2S; Lokacin cire H2S da kuma cire adadi mai yawa na CO2, MDEA da sauran alcoholamine (kamar DEA) za a iya amfani da su azaman hanyar amine mai gauraya;
Tsarin cire iskar gas ta MDEAsune:
Bayan an cire ƙazanta mai ƙarfi da ruwa daga iskar gas ɗin ciyarwa ta hanyar rabawa da mai rabawa, ana cire iskar gas ɗin ciyarwa daga cikin hasumiyar bawul ɗin iyo. Ana amfani da maganin MDEA azaman mai cire sulfur a cikin hasumiyar.
Bayan cire ƙaramin adadin kumfa na ruwa na MDEA daga iskar gas ɗin ta hanyar raba ruwan tsarkakewa mai danshi, iskar gas mai danshi ta shiga hasumiyar bushewar iska.
Ana amfani da TEG don fitar da iskar gas mai danshi a cikin hasumiyar, kuma ana amfani da busasshen iskar gas daga hasumiyar bushewa. Ana amfani da iskar gas ta halitta a matsayin iskar gas mai inganci don fitarwa.
Ruwan da ke cikin hasumiyar cire sinadarin sulfur yana ƙafewa da walƙiya don cire sinadarin hydrocarbons sannan a tace shi ta hanyar tacewa. Sannan a dumama shi da tururi don sake farfaɗo da ruwan MDEA mara kyau, wanda ake tura shi zuwa hasumiyar cire sinadarin sulfur don sake farfaɗo da shi ta hanyar amfani da iskar gas.
Ana cire iskar gas daga ruwan da ke ɗauke da sinadarin acid-water flash daga MDEA, sannan a tura ruwan da aka raba zuwa hasumiyar cire sinadarin sulfate. Ana dumama ruwan da ke ɗauke da sinadarin TEG mai yawa da ake amfani da shi a hasumiyar bushewa don sake farfaɗo da ruwan TEG mara kyau ta hanyar ginshiƙin tacewa, tankin walƙiya da matattara. Ana tura shi zuwa hasumiyar bushewa don bushewar iskar gas mai sauri.
Bayan allurar H2Iskar S a cikin tankin ajiyar iskar acid a wurin rabuwar ruwan acid, ana sanya ta a cikin tanda mai zafi sannan ta yi aiki da iskar da na'urar sanyaya iska ta tsotse ta samar da SO22, wanda ke amsawa da sauran H2S don samar da sinadarin sulfur, sannan ya sami sulfur bayan ya sanyaya.
Iskar gas bayan cire sulfur zai shiga cikin iskar gas na'urar bushewar iskar gas sannan a kai shi zuwa masana'antar janareta ta hanyar bututun mai.
Tuntuɓi:
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