I-skid ye-desulphurization yegesi yemvelo engu-100MMSCFD enenqubo yesisombululo se-MDEA

I-Sichuan Hengzhong Clean Energy Equipment Co., Ltd., yazalwa ngo-2012 futhi singanikeza izixazululo kanye nephakheji yemishini yokwelapha ikhanda lemithombo, imishini yokupholisa igesi yemvelo, iphakheji yokutakula isibabule, Iyunithi yokukhipha i-LPG kanye neyunithi yokubuyisa i-NGL, Isitshalo sokuphuza uketshezi lwe-LNG, iyunithi yokukhiqiza i-hydrogen, iphakheji yokukhipha i-helium, amasethi ejeneretha yegesi.

I-desulphurization skid ephelele ihlanganisa izinhlelo ezintathu: uhlelo lwenqubo, uhlelo lokulawula amathuluzi kanye nohlelo lokusetshenziswa. Ngokusho kwemithombo yomoya ehlukene, ingashintshwa.

Ngokwesimo sangempela somthombo wegesi, samukela inqubo engcono kakhulu kanye nohlelo olungabizi kakhulu ukuhlangabezana nezidingo ezahlukene zamakhasimende. Imishini efakwe kuma-skid yenza ukuthuthwa nokufakwa kube lula kakhulu.

1. Inqubo eyinhloko yokusebenzisa ikhambi le-MDEA ukususa i-CO2 ne-H2S:

Okungokwemvelo okuvela phezulu kungena kuyunithi yokususa i-asidi, esebenzisa isisombululo se-MDEA ukususa amagesi e-asidi njenge-CO2\H2S kugesi eluhlaza.

Igesi yemvelo ingena ku-absorber isuka phansi bese igeleza iye phezulu. Isixazululo se-MDEA esivuselelwe ngokugcwele (isisombululo esithambile) singena ku-absorber isuka phezulu bese igeleza iye phansi. Ama-countercurrents esixazululo se-MDEA kanye negesi yemvelo axhumana ngokugcwele ne-absorber, amunce i-CO2 kanye ne-H2S kugesi bese ewadlulisela esigabeni soketshezi. Izingxenye ezingamuncwanga zidonswa phezulu kwe-absorber bese zingena ku-deacidification gas cooler kanye ne-separator. Igesi ephuma ku-deacidification gas separator ingena ku-feed gas pre-cooling unit, bese i-condensate ithunyelwa ku-flash tank.

TOkuqukethwe kwe-CO2 kugesi yemvelo ephathwayo kungaphansi kwama-50 PPM, kanti okuqukethwe kwe-H2S kungaphansi kwama-4 PPM.

Isixazululo se-MDEA esimunce i-CO2 ne-H2S, esibizwa ngokuthi uketshezi olucebile, sithunyelwa embhoshongweni we-flash, lapho ingcindezi incishiswa khona bese igesi yemvelo ekhanyayo ithunyelwa ohlelweni lokukhipha umoya. Uketshezi olucebile olukhanyayo bese lushintshana ngokushisa nesixazululo (uketshezi oluthambile) oluphuma phansi kombhoshongo wokuvuselela. Izinga lokushisa libe selikhushulwa liye ku-~203 °F bese lithunyelwa engxenyeni ephezulu yombhoshongo wokuvuselela, lapho lihlungwa khona futhi livuselelwa kuze kube yilapho uketshezi oluthambile lufika ekugxilweni okuqondiwe.

Uketshezi oluthambile oluvela embhoshongweni wokuvuselela ludlula ku-lean-rich liquid heat exchanger kanye ne-lean liquid cooler, lupholiswe ku-113 °F, futhi lucindezelwa yi-lean liquid pump ngaphambi kokungena engxenyeni engenhla yombhoshongo wokumunca.

Igesi ephumayo evela phezulu kombhoshongo wokuvuselela idlula esiqandisini segesi ye-asidi bese ingena esihlukanisi segesi ye-asidi. Igesi ephuma esihlukanisi segesi ye-asidi ithunyelwa ohlelweni lokukhipha igesi ye-asidi, bese i-condensate ibuyela ethangini le-MDEA buffer.

Umthombo wokushisa we-regeneration tower reboiler ufudunyezwa ngamafutha okushisa.

Imishini eyinhloko yenqubo yale yunithi umbhoshongo wokumunca kanye nombhoshongo wokuvuselela.

Amapharamitha okuklama：

Umthamo wokucubungula: 100MMSCFD

Iphuzu lokuklama lokuqukethwe kwe-CO2 kugesi eluhlaza: 5% (mol %)

Okuqukethwe kwe-H2S kugesi eluhlaza kungu-8ppmv

Ingcindezi yokusebenza kombhoshongo wokumunca: 986.1psig

Izinga lokushisa lokusebenza lombhoshongo wokumunca: 104 ℉ ~ 140 ℉

Ingcindezi yokusebenza kombhoshongo wokuvuselela kabusha: 4.351psig~7.252psig

Izinga lokushisa lokusebenza lombhoshongo wokuvuselela: 203 ℉ ~257 ℉

Umthombo wokushisa ovuselelayo: Ukushisa uwoyela oshisayo

Okuqukethwe kwe-CO2 kugesi engasebenzi kahle ≤50PPM

okuqukethwe kwegesi kugesi ekhishwe i-asidi ≤4PPM

3) Ububanzi besicelo

50% ~ 110%

2. Uhlelo lokulawula izinsimbi

Ukuze kuqashwe ngempumelelo inqubo yokukhiqiza yesethi ephelele yemishini, futhi kuqinisekiswe ukusebenza okuthembekile kanye nokusebenza okulula nokugcinwa kwayo, uhlelo lokulawula izinsimbi luhlanganisa ikakhulukazi:

Uhlelo lokulawula olusatshalaliswayo (i-DCS)

Uhlelo Lwezinsimbi Zokuphepha (i-SIS)

Uhlelo Lokuthola I-Alarm Yomlilo kanye Negesi (FGS)

Ithelevishini yesekethe evaliwe (i-CCTV)

Uhlelo lokuhlaziya

3. Uhlelo lwezinsiza

Lolu hlelo luhlanganisa ikakhulukazi: iyunithi yomoya wezinsimbi, iyunithi ye-nitrogen, iyunithi kawoyela wokudlulisa ukushisa, iyunithi yamanzi akhishwe usawoti kanye neyunithi yamanzi ajikelezayo okupholisa.