Ubushinwa Bwiza Bwiza H2S Kuvanwa mu ruganda rwa gazi karemano - 7MMSCFD Skid ya gaze karubone skid - Rongteng

MDEA Imiterere yumubiri naihame rya decarburisationkuri gaze gasanzwe

MDEA, izina ry'ubumenyi N -methyldiethanolamine, ni ibara ritagira ibara cyangwa umuhondo muto.

Inzira ya molekulari: CH3N (CH2CH2OH) 2,

Ingingo yo guteka ： 246 ~ 249 ℃ / 760mmhg; uburemere bwihariye ： 1.0425g / ml (20 ℃);

Ingingo yo gukonjesha ： -21 ℃ (ubuziranenge 99%); ubukonje ： 101Cp (20 ℃);

Irashobora kwibeshya byoroshye namazi, Ethanol, ether, nibindi.; alkaline nkeya mumazi; imiti ya chimique izaboneka muri acide karuboni ya dioxyde na gaze ya hydrogène sulfide, kandi kumuvuduko mwinshi, gaze karuboni na hydrogène sulfide gaze ifite byinshi Rero inzira yo kwinjiza yose ni inzira yo kwinjiza umubiri na chimique.

Amazi akungahaye ya MDEA nyuma yo gukuramo hydrogen sulfide na dioxyde de carbone yinjira muri flash tank kugirango vacuum flash evaporation, hanyuma ikoherezwa kuminara mishya. Amazi akungahaye arashyuha kandi akangirika munsi yumunara kugirango arekure burundu dioxyde de carbone na hydrogen sulfide. Muri icyo gihe, gaze munsi yumunara irazamuka kugirango igire ingaruka ya kabiri yo kwambura amazi akungahaye hejuru yumunara.; inzira yose rero yo kuvugurura nayo ni inzira yo kuvugurura umubiri na chimique. Imiterere yihariye yimiti niyi ikurikira:

R2R'N + H2S R2R'NH + HS (reaction ako kanya)

R2R'N + CO2 + H2O R2R'NH + HCO3 (reaction itinda)

Gukuramo no guhindurwa bashyaihame rya decarburisationkuri gaze gasanzwe

Iyo gazi yo kugaburira imaze kwinjira muri bateri, umwanda nigitonyanga muri gaze bivanwaho na filteri itandukanya, hanyuma ikinjira muminara yo kwinjiza kuva hasi. Mu munara, birahuye guhura nigisubizo cya MDEA cyatewe hejuru. Igisubizo cyamazi ya MDEA (igisubizo cya amine lean) gikurura hydrogène sulfide na dioxyde de carbone muri gaze karemano, kugirango hydrogène sulfide na dioxyde de carbone muri gaze yibiryo bivanwe kugirango byuzuze tekiniki nyirubwite. Gazi isukuye yoherezwa hanze yumupaka binyuze mu gutandukanya gaze ibicuruzwa nyuma yo kuva hejuru yumunara winjira.

Mugenzurwa nurwego rwamazi agenga valve, urwego rwamazi hepfo yumunara winjiza rutanga amine ikungahaye kuri flash tank. Amine ikize kuva hepfo yumunara winjira yinjira muri flash tank. Amenshi muri hydrocarbone yinjiye muri amine akungahaye yanduzwa icyiciro cya flash. Mugenzuzi yumuvuduko ugenga valve, flash flash isubizwa muri sisitemu ya gaze ya lisansi. Amazi akungahaye kuri amine yoherejwe kuri lean / ikungahaye kuri amine ubushyuhe. Amine ashyushye amine yo muminara yubuzima bushya ashyushya amine ikungahaye kuri flash tank, hanyuma amine ikize yinjira muminara yo kuvugurura amine.

Imyuka ikorwa na reboiler hepfo yumunara wa amine ivugurura ihuza amine ikungahaye cyane, ikuramo gaze ya aside, bityo ikarangiza kuvugurura amine ikungahaye. Iyobowe nurwego rwamazi agenga valve hepfo yumunara woguhindura amine, igisubizo gishyushye cya amine gishyushye cyuzura ubushyuhe bwa amine / bukungahaye kuri amine. Pompe ya amine booster pompe ikanda amine muri tank ya amine kuri 1.0mpa ikayohereza kumunara winjira. Imiyoboro igenga imigezi yashyizwe kumuyoboro wa amine unan kugeza umunara winjira, unyuzamo amine yinini yinjira muminara yinjira.