（2） Zipangizo zochotsera mpweya wachilengedwe
Mpweya wa Feed umalowa mu mayunitsi ochotsera mpweya wachilengedwe motsatana. Chipangizochi chimagwiritsa ntchito yankho la MDEA kuchotsa mpweya wa acidic monga CO22 ndi H2S mu mpweya wodyetsa.
Mpweya wachilengedwe umalowa kuchokera pansi pa nsanja yoyamwitsa ndipo umadutsa mu nsanja yoyamwitsa kuchokera pansi kupita pamwamba; yankho la MDEA lokonzedwanso mokwanira (madzimadzi osalimba) limalowa kuchokera pamwamba pa nsanja yoyamwitsa ndipo limadutsa mu nsanja yoyamwitsa kuchokera pamwamba kupita pansi. Yankho la MDEA ndi mpweya wachilengedwe womwe ukuyenda mosiyana uli mu nsanja yoyamwitsa. Pambuyo pokhudzana kwathunthu, CO22 ndi H2Mpweya umalowa mu gawo lamadzimadzi. Zinthu zosalowa m'madzi zimatengedwa kuchokera pamwamba pa nsanja yoyamwa ndikulowa mu choziziritsira mpweya chochotsa sulfurization ndi cholekanitsa. Mpweya wotuluka mu cholekanitsa mpweya chochotsa sulfurization umalowa mu chipangizo cha molecular sieve dehydration, ndipo condensate imapita ku thanki ya flash.
H2Kuchuluka kwa S mu zinthu zachilengedwe zomwe zakonzedwa ndi kochepera 5 mg/Sm3.
MDEA yomwe yatenga H2S imatchedwa madzi olemera ndipo imatumizidwa ku nsanja yotulutsa mpweya. Mpweya wachilengedwe womwe umatuluka chifukwa cha kupsinjika umatumizidwa ku dongosolo la mafuta. Madzi olemera omwe amatuluka akasinthana kutentha ndi yankho (madzi osasunthika) lomwe limatuluka pansi pa nsanja yobwezeretsa, kutentha kumakwezedwa kufika ~98°C kumtunda kwa nsanja yobwezeretsa, komwe kuchotsa ndi kukonzanso kumachitika mu nsanja yobwezeretsa mpaka mlingo wamadzi ofooka wa madzi ofooka utafika pa cholinga.
Madzi osalimba omwe amachokera mu nsanja yokonzanso zinthu amadutsa mu chosinthira kutentha chamadzimadzi chosalemera komanso chozizira chamadzimadzi chosalimba. Madzi osalimbawo amaziziritsidwa mpaka ~ 104°F. Pambuyo pokakamizidwa ndi pampu yamadzimadzi osalimba, amalowa kuchokera kumtunda kwa nsanja yoyamwitsa.
Mpweya womwe uli pamwamba pa nsanja yokonzanso umadutsa mu choziziritsira cha carbon dioxide ndikulowa mu cholekanitsa cha carbon dioxide. Mpweya womwe umatuluka mu cholekanitsa cha carbon dioxide umatumizidwa ku dongosolo lotulutsa carbon dioxide. Mpweya wosungunuka umakakamizidwa ndi pampu ya reflux ndikutumizidwa ku nsanja yokonzanso.
Gwero la kutentha kwa reboiler ya nsanja yokonzanso limaperekedwa ndi mafuta osamutsa kutentha kwapakati kuchokera ku makina osamutsa kutentha.
Mpweya wa asidi womwe umachotsedwa ndi makina ochotsera sulfure umatulutsidwa mwachindunji mumlengalenga. Kwenikweni palibe madzi otayira omwe amatuluka, ndipo madzi omwe amachotsedwa ndi mpweya wa asidi amatulutsidwa kudzera mu makina owonjezera ochotsera mchere; madzi omwe amachotsedwa ndi makina ochotsera madzi m'thupi amalowa mu makina ochotsera zinyalala kudzera mu makina otsekeka otulutsa madzi ndipo amatulutsidwa akadutsa mu makina ochotsera madzi.
(3) Kusowa madzi m'thupi chifukwa cha mpweya wachilengedwe zipangizo
Chipangizochi chimagwiritsa ntchito ukadaulo wothira mpweya wosinthasintha kutentha kuti chilekanitse ndi kuyeretsa mpweya. Ukadaulo wothira mpweya wosinthasintha kutentha umachokera ku kuthira mpweya wosungunuka mkati mwa mpweya (zinthu zolimba zokhala ndi porous). Mphamvu yothira mpweya wosungunuka imasintha ndi kutentha ndi kuthamanga kwa mpweya. Ngati mpweya wosungunuka umathira mpweya m'njira zosiyanasiyana, umathira mpweya wosakanikirana ndi mpweya wochepa komanso wopanikizika kwambiri, ndipo zinthu zosathira mpweya zimatuluka kudzera mu adsorber layer, ndikuthira mpweya wosungunuka ndi kutentha kwambiri komanso kotsika. Pa kuthira mpweya wocheperako komanso wopanikizika kwambiri, nsanja zingapo zothira mpweya zingagwiritsidwe ntchito kuti zikwaniritse cholinga chothira mpweya mosalekeza.
The chipangizo chowumitsira mpweya wodyetsa chakudya Ili ndi zokoka zitatu zosinthira, kuphatikiza chimodzi chokoka, china chokoka, ndi china chotenthetsera ndi kukonzanso.
Chipangizo choumitsira mpweya wothira mafuta chimagwiritsa ntchito mpweya wothira mafuta pang'ono ngati njira yozizira komanso yobwezeretsanso mpweya. Mpweya wothira mafuta ukatuluka mu nsanja yothira mafuta, umaziziritsidwa ndikulekanitsidwa kenako umakanikizidwa ndi chowonjezera mphamvu ndikutumizidwa ku nsanja yothira mafuta kuti ulowe madzi.
Mpweya wobwezeretsa mpweya umadutsa koyamba mu adsorber yozizira kuchokera pamwamba mpaka pansi. Kenako mpweya wobwezeretsa mpweya umatenthedwa kufika kutentha kwa 392 ~ 428 ° F ndi chotenthetsera chobwezeretsa mpweya, kenako umalowa kuchokera pansi pa adsorber kuti uchotse madzi omwe amatengedwa ndi adsorbent. Mpweya wobwezeretsa mpweya umatuluka pamwamba pa choumitsira mpweya, umaziziritsidwa ndi choziziritsira mpweya, kenako umalowa mu cholekanitsa mpweya wobwezeretsa mpweya. Madziwo akalekanitsidwa, amalowa mu supercharger ndipo amakanikizidwa ndikutumizidwa ku nsanja yosungira madzi kuti alowe madzi.
Madzi mu mpweya wachilengedwe wouma akadutsa mu chipangizochi, amakhala ≤ 15 ppm.
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