I-MDEA desulphurization skid yokwelashwa kwegesi yemvelo

Incazelo

I-MDEA desulphurization (desulfurization) skid, ebizwa nangokuthi i-MDEA sweeting skid, iyithuluzi elibalulekile ekuhlanzeni igesi yemvelo noma ekulungiseni igesi yemvelo.

I-MDEA desulfurization skid yegesi yemvelo isetshenziswa njalo lapho i-carbon sulfur yegesi yokudla iphezulu kakhulu, futhi lapho kudingeka ukususwa okukhethekile kwe-H2S ukuze kutholakale igesi ye-asidi efanele ukucutshungulwa kwesitshalo se-Claus, kanye nezinye izimo ezingakhethwa ukususa i-H2S; Lapho kususwa i-H2S futhi kususwa inani elikhulu le-CO2, i-MDEA kanye nezinye i-alcoholamine (njenge-DEA) zingasetshenziswa njengendlela ye-mixed amine;

Inqubo

Ngemva kokuba ukungcola okuqinile noketshezi kususiwe kugesi yokuphakelayo ngokusebenzisa isihlukanisi kanye nesihlukanisi sesihlungi, igesi yokuphakelayo iyasuswa esibabuleni embhoshongweni wevalvu entantayo. Isixazululo seMethyl diethanol (MDEA) sisetshenziswa njenge-desulphurizer embhoshongweni.

Ngemva kokususa inani elincane le-MDEA liquid foam kusuka kugesi ngokusebenzisa isihlukanisi sokuhlanza okumanzi, igesi yemvelo emanzi ingena embhoshongweni wokuphelelwa amanzi.

I-TEG isetshenziselwa ukumunca igesi yemvelo emanzi embhoshongweni kanti kusetshenziswa igesi eyomile evela embhoshongweni wokuphelelwa amanzi. Igesi yemvelo isetshenziswa njengegesi yempahla efanelekile yokuthunyelwa kwamanye amazwe.

Uketshezi olucebile lwe-MDEA embhoshongweni wokususa i-sulfur luyashiswa nge-flash ukuze kususwe ama-hydrocarbon bese luhlungwa ngezihlungi. Bese lufudunyezwa ngomusi ukuze kuphinde kukhiqizwe uketshezi lwe-MDEA olubi, olupompelwa embhoshongweni wokususa i-sulfur ukuze kususwe i-sulfurization nge-cyclic.

Igesi yemvelo evela ku-MDEA rich liquid flash isuswa yisihlukanisi samanzi ane-acid, bese isixazululo se-MDEA esihlukanisiwe sipontshwa siye embhoshongweni wokususa i-sulfurization. Uketshezi olune-TEG olusetshenziswa embhoshongweni wokususa i-dehydration luyashiswa ukuze luphinde luvuselele isixazululo se-TEG esibi ngokusebenzisa ikholomu yokuhluza, ithangi le-flash kanye nesihlungi. Ipontshwa iye embhoshongweni wokususa i-dehydration ukuze kuphuze i-cyclic dehydration.

Ngemva kokufaka igesi ye-H2S ethangini lokugcina igesi ye-asidi endaweni yokuhlukanisa ye-separator yamanzi ye-asidi, iyashiswa esithandweni sokusabela bese isabela emoyeni odonswa yi-compressor yomoya ukuze yakhe i-SO2, esabela ne-H2S esele ukuze yakhe i-sulfur eyisisekelo, bese ithola i-sulfur ngemva kokupholisa.

Imininingwane