Umgangatho oPhezulu waseTshayina weSixhobo seGesi yeNdalo eSweetening ngaphandle-MDEA desulphurization skid kunyango lwegesi yendalo-Rongteng

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I-MDEA desulphurization (desulfurization) skid, ekwabizwa ngokuba yi-MDEA sweeting skid, sisixhobo esiphambili ekucoceni irhasi yendalo okanye ukulungiswa kwerhasi yendalo.

I-MDEA desulfurization skid yegesi yendalo isoloko yamkelwa xa i-carbon sulphur yegesi yokutya iphezulu, kwaye xa ukususwa okukhethiweyo kwe-H2S kuyadingeka ukufumana igesi ye-asidi efanelekileyo kwiClaus processing plant, kunye nezinye iimeko ezinokuthi zikhethwe ukususa i-H2S; Xa ususa i-H2S kwaye ususa inani elikhulu le-CO2, i-MDEA kunye nezinye i-alcoholamine (ezifana ne-DEA) zingasetyenziselwa njengendlela edibeneyo ye-amine;

Inkqubo

Emva kokuba ukungcola okuqinileyo kunye nolwelo kususiwe kwigesi yokutya ngokusebenzisa isahluli kunye nesahluli sokuhluza, igesi yokutya iyachithwa kwinqaba yevalve edadayo. Isisombululo seMethyl diethanol (MDEA) sisetyenziswa njenge-desulphurizer kwinqaba.

Emva kokususa inani elincinci le-MDEA ye-foam yolwelo kwi-gas ngokusebenzisa isahluli sokucoca okumanzi, igesi yendalo emanzi ingena kwinqaba yokuchithwa kwamanzi.

I-TEG isetyenziselwa ukuphelisa igesi yendalo emanzi kwinqaba kunye nerhasi eyomileyo evela kwinqaba yokuphelelwa ngamanzi emzimbeni iyasetyenziswa. Irhasi yendalo isetyenziswa njengerhasi yorhwebo olufanelekileyo ekuthengiseni kumazwe angaphandle.

I-MDEA etyebileyo yolwelo kwinqaba ye-desulfurization i-flash evaporated ukuze isuse ii-hydrocarbons kwaye ihluzwe ngezihluzo. Emva koko ifudunyezwa ngumphunga ukuze iphinde ivelise ulwelo olulambathayo lwe-MDEA, olumpontshelwa kwinqaba ye-desulfurization ye-cyclic desulfurization.

Irhasi yendalo evela kwi-MDEA enolwelo olutyebileyo i-flash isuswa yi-acid-water separator, kwaye isisombululo se-MDEA esahluliweyo simpontshelwa kwinqaba ye-desulfurization. Ulwelo olutyebileyo lwe-TEG olusetyenziswa kwinqaba yokuphelelwa ngamanzi emzimbeni lufudunyezwa ukuvuselela isisombululo se-TEG esilambathayo ngekholamu yedistillation, itanki yeflash kunye nesihluzo. Impontshelwa kwinqaba yokuphelelwa ngamanzi emzimbeni ngenxa ye-cyclic dehydration.

Emva kokutofa irhasi ye-H2S kwitanki yokugcina irhasi yeasidi kwindawo yokwahlulwa kwesahluli samanzi easidi, ifudunyezwa ngaphambili kwiziko lokusabela kwaye isabela ngomoya ifunxe isicinezeli somoya ukwenza i-SO2, esabelana ne-H2S eseleyo ukwenza i-elemental sulphur, ize ifumane sulphur emva kokupholisa.

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