1  Ukubuka Konke Kwesistimu

Igesi ephakelayo ingena ohlelweni lokwelapha igesi yemvelo ngemuva kokuhluzwa, ukuhlukaniswa, ukulawulwa kwengcindezi kanye nokulinganiswa. Ngemva kokususa i-CO2₂, H₂O, ama-hydrocarbon asindayo kanye ne-Hg, ingena ebhokisini elibandayo le-liquefaction, bese ipholiswa, incibilikiswe, ipholiswe ngaphansi kwe-subcool bese igoqwa ku-plate-fin heat exchanger. Bese ingena ethangini lokugcina i-LNG njengomkhiqizo we-LNG.

Izindlela zobuchwepheshe eziyinhloko zale divayisi yilezi:

• Sebenzisa i-MDEA ukususa i-carbon dioxide;

• Izisefo zama-molecule zisetshenziselwa ukususa amanzir
• Sebenzisa ikhabhoni esebenzayo ukususa ama-hydrocarbon asindayo;

• Sebenzisa ikhabhoni evuselelwe ngesibabule ukuze ususe i-mercury;

• Sebenzisa izakhi zokuhlunga ngokunemba ukuhlunga isihlungi sama-molecule kanye nothuli lwe-carbon olusebenzayo;

• Yonke igesi yemvelo ehlanziwe incibilikiswa yinqubo yokuqandisa ejikelezayo ye-MRC (mixed refrigerant);

  Lolu hlelo lwenqubo luhlanganisa:

• Ukuhlunga nokuhlukaniswa kwegesi okuphakelayo, ukulawulwa kwengcindezi kanye nohlelo lokulinganisa;

• Uhlelo lokwelapha ngaphambi kwesikhathi (kufaka phakathi ukususwa kwe-carbonization, ukuphelelwa amanzi emzimbeni, ukususwa kwe-hydrocarbon esindayo, ukususwa kwe-mercury, kanye nokususwa kothuli);

• Uhlelo lokulinganisa lwe-MR kanye nohlelo lomjikelezo wokucindezela kwe-MR;

• uhlelo lokuncibilikisa uketshezi lwe-LNG;

• Uhlelo lokusebenzisa kabusha lwe-BOG

2   Incazelo yesistimu ngayinye

2.1      Ukuhlukaniswa kokuhlunga igesi okuphakelayo kanye neyunithi yokulawula ingcindezi

1) Incazelo yenqubo

Igesi yokuphakelayo evela phezulu komfula ilawulwa yingcindezi bese ingena kwisihlukanisi sesihlungi sokungena kwegesi yokuphakelayo, bese ingena ohlelweni olungezansi komfula ngemva kokucindezelwa, ukuhlukaniswa nokulinganiselwa.

Imishini yayo eyinhloko yenqubo isihlukanisi sesihlungi segesi yokuphakelayo, imitha yokugeleza, i-compressor njalo njalo.

2) Amapharamitha okuklama

Umthamo wokuphatha: 10×10 ⁴ I-Nm ³ /usuku

Ububanzi bokulungiswa: 50% ~ 110%

Ingcindezi yokukhipha i-compressor: 5. 2Mpa.g

2.2      Iyunithi yokususa i-asidi kugesi ophakelayo

1) Incazelo yenqubo

Igesi yokuphakelayo evela phezulu ingena kuyunithi yokuqeda i-acid, futhi le yunithi isebenzisa indlela yesisombululo se-MDEA ukususa amagesi e-acid njenge-CO2₂ kanye no-H₂S kugesi yokuphakelayo.

Igesi yemvelo ingena isuka engxenyeni engezansi yombhoshongo wokumunca bese idlula embhoshongweni wokumunca kusuka phansi kuya phezulu; isixazululo se-MDEA esivuselelwe ngokugcwele (uketshezi olungenamafutha) singena sisuka engxenyeni engenhla yombhoshongo wokumunca, sidlula embhoshongweni wokumunca kusuka phezulu kuya phansi, kanti isixazululo se-MDEA kanye negesi yemvelo egeleza ngakolunye uhlangothi zisembhoshongweni wokumunca Uma zixhunyaniswe ngokugcwele, i-CO2₂ kugesi _kuyinto imuncwa esigabeni soketshezi, bese izingxenye ezingamuncwanga zikhishwa phezulu kombhoshongo wokumuncwa bese zingena ku-decarburised gas cooler kanye ne-separator. Igesi ephuma ku-decarburised gas separator ingena ku-feed gas mercury removal unit, bese i-condensate iya ethangini le-flash.

I-CO₂ okuqukethwe kwento yemvelo ephathwayo kungaphansi kuka-50ppmv.

I-MEDA imunce i-CO₂ ibizwa ngokuthi uketshezi olucebile, bese ithunyelwa embhoshongweni we-flash, bese igesi yemvelo ekhishwa ngaphansi kokunciphisa ingcindezi ithunyelwa ohlelweni lukaphethiloli. Ngemva kokukhanyisa, uketshezi olucebile lushintshana ngokushisa nesisombululo (uketshezi oluthambile) oluphuma phansi kombhoshongo wokuvuselela, bese izinga lokushisa liphakanyiswa libe ngu-~98 °C ukuya engxenyeni engenhla yombhoshongo wokuvuselela.

Uketshezi oluthambile oluvela embhoshongweni wokuvuselela ludlula ku-lean-rich liquid heat exchanger kanye ne-lean liquid cooler, uketshezi oluthambile luyapholiswa lufike ku-~40 ℃, futhi ngemva kokucindezelwa yi-lean liquid pump, lungena luvela engxenyeni engenhla yombhoshongo wokumunca.

Igesi etholakala phezulu embhoshongweni wokuvuselela idlula esiqandisini segesi ye-asidi bese ingena esihlukanisi segesi ye-asidi. Igesi evela esihlukanisi segesi ye-asidi ithunyelwa ohlelweni lokukhipha igesi ye-asidi, bese i-condensate icindezelwa yiphampu yokubuyisa bese ithunyelwa esihlukanisi se-flash.

Umthombo wokushisa we-regeneration tower reboiler ushiswa uwoyela wokudlulisa ukushisa.

Imishini eyinhloko yenqubo yale yunithi umbhoshongo wokumunca kanye nombhoshongo wokuvuselela.

2) Amapharamitha okuklama

Umthamo wokuphatha: 10×10 ⁴ I-Nm ³ /usuku

Igesi yokuphakelayo i-CO₂ iphuzu lokuklama: 3%

Ingcindezi yokusebenza yombhoshongo wokumunca: 5Mpa.G

Izinga lokushisa lokusebenza lombhoshongo wokumunca: 40 ℃ ~ 60 ℃

Umbhoshongo wokuvuselela: 0.03 Mpa.G~0.05 Mpa.G

Izinga lokushisa lokusebenza lombhoshongo wokuvuselela kabusha: 95 ℃ ~ 120 ℃

Umthombo wokushisa ovuselelayo: ukushisa uwoyela wokudlulisa ukushisa

I-CO₂ igesi kugesi ekhishwe i-carburetion ingu-≤50ppm

Xhumana nathi:

I-Sichuan Hengzhong Automation Equipment Co., Ltd.

www.rtgastreat.com

I-imeyili: sales01@rtgastreat.com

Ucingo/i-whatsapp: +86 138 8076 0589