Rufewar ruwan shara na MDEA don maganin iskar gas

Bayani

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.

Ana amfani da na'urar cire sulfur na MDEA don iskar gas koyaushe lokacin da carbon sulfur na iskar gas mai yawan gaske yake, kuma lokacin da ake buƙatar cire H2S na zaɓi don samun iskar acid da ta dace da sarrafa masana'antar Claus, da sauran yanayi waɗanda za a iya zaɓa don cire H2S; Lokacin cire H2S da cire adadi mai yawa na CO2, ana iya amfani da MDEA da sauran alcoholamine (kamar DEA) azaman hanyar amine mai gauraya;

Tsarin aiki

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 Methyl diethanol (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 an saka iskar H2S a cikin tankin ajiyar iskar acid a wurin rabuwar ruwan acid, ana sanya shi a cikin tanda mai zafi sannan ya yi aiki da iskar da na'urar sanyaya iska ta tsotse don samar da SO2, wanda ke amsawa da sauran H2S don samar da sinadarin sulfur, sannan ya sami sulfur bayan ya huce.

Ƙayyadewa