Umgangatho oPhezulu waseTshayina aBavelisi beZityalo ze-Cryogenic LNG - 67~134 TPD skid inyuswe iyunithi yokunyibilikisa igesi yendalo - Rongteng

Isishwankathelo senkqubo

Igesi yendalo yokutya ingena kwinkqubo yokucocwa kwegesi yendalo emva kokuhluzwa, ukwahlukana, ukulawulwa koxinzelelo kunye nokulinganisa. Emva kwe-CO₂, Hg kunye noH₂O zisusiwe, ingena kwibhokisi ebandayo ye-liquefaction, epholileyo, i-liquefied kunye ne-nitrogen isuswe kwi-plate fin exchanger ubushushu, kwaye emva koko ibuyele kwibhokisi ebandayo ukuze iqhubeke nokupholisa, ukupholisa, ukupholisa kunye nokudanyaza kwitanki ye-flash. Isigaba solwelo esahluliweyo singena kwitanki yokugcina ye-LNG njengeemveliso ze-LNG.

Inkqubo ephambili kunye neendlela zobugcisa zeyunithi zezi:

Sebenzisa i-MDEA ukususa i-carbon dioxide;

Isefu yemolekyuli isetyenziselwa ukususa umkhondo wamanzi;

Ukususwa kwemekyuri ngesulfure efakwe kwikhabhoni esebenzayo;

Sebenzisa izinto ezichanekileyo zokucoca ukuhluza isihluzo semolekyuli kunye nothuli lwekhabhoni olusebenzayo

Ukususwa kwe-nitrogen nge-distillation yobushushu obuphantsi;

I-MRC (i-mixed refrigerant) inkqubo yefriji yomjikelo yamkelwa ukunyibilikisa yonke irhasi yendalo esulungekileyo.

Inkqubo yenkqubo ibandakanya:

Ukulinganisa kunye nokwahlula igesi ekrwada;

Inkqubo yonyango lwangaphambili (kubandakanya i-decarburization, ukususwa kwe-mercury, ukukhutshwa kwamanzi kunye nokususwa kothuli);

Inkqubo yokulinganisa i-MR kunye ne-MR compression circulation system;

inkqubo yokunyibilikisa i-LNG;

Ukugcinwa kwe-LNG kunye nenkqubo yokulayisha.

Inkqubo yokubuyisela iBog

Ukwahlula ukuhluzwa kwegesi yokutya kunye neyunithi yokulawula uxinzelelo

Irhasi yendalo yomxhesho osuka kumntla uqukuqela ngombhobho ngoxinzelelo lwe-5.0 ~ 6.0MpaG ingena kwi-fid gas inlet filter separator emva kokulawula uxinzelelo, kwaye ingena kwinkqubo esezantsi emva kokwahlulwa kunye nokulinganisa.

Isixhobo esiphambili senkqubo sisihluli segesi yokutya, i-flowmeter, isilawuli soxinzelelo, njl.

2) Iiparamitha zoyilo

Ukucutshungulwa kwamandla: 20×10⁴Nm³/usuku

Uluhlu lohlengahlengiso: 50% ~ 110%

Inkqubo yonyango lwangaphambili

Iyunithi yokuphelisa igesi yokutya

1）Inkcazo yenkqubo

Igesi yokutya evela phezulu ingena kwiyunithi yegesi ye-deacidification, esebenzisa isisombululo se-MDEA ukususa iigesi ze-asidi ezifana ne-CO.₂kunye noH₂S kwigesi yokutya.

Irhasi yendalo ingena ukusuka kwindawo esezantsi ye-absorbeer (inqaba yokufunxa) kwaye idlula kwi-absorber ukusuka ezantsi ukuya phezulu; Isisombululo se-MDEA esihlaziywe ngokupheleleyo (isisombululo esincinci) singena ukusuka kwindawo ephezulu ye-absorber kwaye sidlula kwi-absorber ukusuka phezulu ukuya phezulu. Isisombululo se-MDEA se-reverse flow kunye negesi yendalo idibene ngokupheleleyo kwi-absorber, i-CO₂kwigesi ifunnwe kwaye ingena kwisigaba solwelo, kwaye amacandelo angaxutywanga aholwa aphume phezulu kwi-absorber kwaye angene kwi-cooler yegesi ye-decarbonization kunye ne-separator. Igesi evela kwisahluli segesi ye-decarbonization ingena kwiyunithi yokususa i-mercury yegesi yokutya, kwaye i-condensate iya kwi-flash tank.

Umxholo weCO₂kwigesi yendalo enyangweyo ingaphantsi kwe-50ppmv.

Isisombululo se-MDEA esifunxa i-CO₂ibizwa ngokuba yisisombululo esityebileyo, esithunyelwa kwinqaba ye-flash, kwaye igesi yendalo edanyazwe yi-depressurization ithunyelwa kwinkqubo yamafutha. Emva kokutshintshiselana kobushushu phakathi kwe-flash ecebileyo yolwelo kunye nesisombululo (ulwelo oluthambileyo) oluphuma ezantsi kwinqaba yokuhlaziya, phakamisa ubushushu ukuya kwi- ~ 98 ℃ ukuya kwindawo ephezulu yenqaba yokuhlaziya, kwaye uqhubele phambili ukuhluba ngokutsha kwinqaba yokuhlaziya de idigri ebhityileyo yolwelo olubhityileyo lufikelele kwisalathiso.

Ulwelo olubhityileyo oluphuma kwinqaba yohlaziyo ludlula kwisitshintshi sobushushu solwelo olutyebileyo noluhlwempuzekileyo kunye nesipholileyo solwelo olubhityileyo. Ulwelo olubhityileyo lupholisiwe ukuya ku- ~ 40 ℃, lucinezelwe yimpompo yolwelo ebhityileyo kwaye lungena lusuka kwindawo ephezulu yenqaba yokufunxa.

I-gas ephumayo phezulu kwinqaba yokuvuselela ingena kwi-asidi ye-gas separator ngokusebenzisa i-acid gas cooler, i-gas esuka kwi-asidi ye-gas separator ithunyelwa kwinkqubo yokukhutshwa kwegesi ye-asidi, kwaye i-condensate ithunyelwa kwi-flash separator emva koxinzelelo lwempompo yokubuyisela.

Umthombo wobushushu we-reboiler ye-regeneration tower ufudumeza ngeoli yokudlulisa ubushushu.

Izixhobo eziphambili zenkqubo yale yunithi yinqaba yokufunxa kunye nenqaba yokuvuselela.