Gasi rekudya chikamu chekubvisa asidhi
Gasi rekudzvinyirirwa rinopinda muchikamu chekubvisa acid, icho chinoshandisa mhinduro yeMDEA kubvisa CO2, H2S nemamwe magasi eacid mugasi rekudzvinyirirwa.
Gasi rechisikigo rinopinda kubva pasi pemuchina wekunyudza mvura uye rinopfuura nemumuchina wekunyudza mvura kubva pasi kuenda kumusoro; Mhinduro yeMDEA yakagadziriswazve zvizere (mhinduro isina kusimba) inopinda kubva pamusoro pemuchina wekunyudza mvura uye inopfuura nemumuchina wekunyudza mvura kubva kumusoro kuenda pasi. Mhinduro yeMDEA inoyerera nekumashure uye gasi rechisikigo zvinobatwa zvizere mumuchina wekunyudza mvura. CO2 iri mugasi inonyudzwa uye inopinda muchikamu chemvura. Zvikamu zvisina kunyudzwa zvinoburitswa kubva pamusoro pemuchina wekunyudza mvura uye zvinopinda mumudziyo wekunyudza mvura nemudziyo wekuparadzanisa mvura. Gasi rinobva mumudziyo wekuparadzanisa mvura nemudziyo wekunyudza mvura rinopinda mumudziyo wekuomesa gasi, uye mvura inodziya inoenda kuflash tank.
Huremu hweCO2 mugasi rechisikigo rakagadziriswa huri pasi pe50ppmv.
Mhinduro yeMDEA inonwisa CO2 inonzi mhinduro yakapfuma, iyo inotumirwa kuflash tower, uye gasi rechisikigo rinogadzirwa ne depressurization flash rinotumirwa ku fuel system. Mushure mekuchinjirana kwekupisa pakati pemvura yakapfuma yakapenya nemhinduro (lean liquid) inoyerera ichibva pasi pe regeneration tower, simudza tembiricha kusvika ~ 98 ℃ kumusoro kwe regeneration tower, uye ita stripping regeneration mu regeneration tower kusvika lean liquid yasvika pa index.
Mvura isina kusimba inobva mushongwe yekudzoreredza inopfuura nemuchina unochinja kupisa wemvura wakawanda uye usina kunaka uye unotonhodza mvura isina kusimba. Mvura isina kusimba inotonhodzwa kusvika ~ 40 ℃, ichimanikidzwa nepombi yemvura isina kusimba uye inopinda ichibva pamusoro peshongwe yekunyudza.
Gasi rinobuda riri pamusoro peshongwe yekuvandudza rinopinda muchikamu chegasi rine acid kuburikidza nechinotonhodza gasi rine acid, gasi rinobva muchikamu chegasi rine acid rinotumirwa kusystem yekuburitsa gasi rine acid, uye condensate inotumirwa kuchikamu che flash mushure mekumanikidzwa nepombi yekudzoreredza.
Nzvimbo inodziya ye reboiler ye regeneration tower inodziiswa nemafuta e heat transfer.
Midziyo mikuru yekushanda kwechikamu ichi ishongwe yekunyudza uye shongwe yekudzoreredza.
Gasi rekudya chikamu chekuomesa
Chigadzirwa ichi chinoshandisa tekinoroji yekudhonza magasi pakupisa nekucheneswa. Tekinoroji yekudhonza magasi pakupisa inobva pakudhonza mamorekuru egasi pamusoro pemukati me adsorbent (zvinhu zvakasimba zvine porous), uye inoshandisa hunhu hwekuti kugona kwekudhonza magasi pakupisa nekumanikidzwa kwakasiyana kwe adsorption. Kana adsorbent ikatora zvikamu zvakasiyana zvegasi, inodhonza zvimwe zvikamu mugasi rakasanganiswa pakupisa kwakaderera nekumanikidzwa kwakanyanya. Zvikamu zvisina kudhonza zvinobuda nepa adsorber layer uye zvinodhonza zvikamu izvi zvakadhonza pakupisa kwakakwira nekumanikidzwa kwakaderera kune tembiricha yakaderera nekudhonza kwakanyanya. Mashongwe akawanda ekudhonza magasi anogona kushandiswa kuzadzisa chinangwa chekuparadzanisa gasi nguva dzose.
Chigadziko chekuomesa gasi rekudya chine ma adsorber maviri ekushandura, kusanganisira rimwe re adsorption, rimwe rekugadzirisa chando.
Gasi rinodyisa kubva kuchikamu chegasi rinobvisa acidity rinopinda pamusoro pe adsorber. Mushure mekubvisa mvura kuburikidza nesipo yemolecular, rinobuda pasi pe adsorber. Mushure mekushaya mvura, gasi rechisikigo rinopinda muchikamu chegasi rinobvisa acidity.
Chigadziko chekubvisa mahydrocarbon akawanda chinoshandisa gasi shoma rakacheneswa senzvimbo inotonhorera uye inovandudza mafambiro emhepo.
Gasi rekugadzirisa rinotanga rapfuura nemumuchina unotonhorera unobva pasi kuenda kumusoro, uye gasi rekugadzirisa rinodziiswa kusvika patembiricha yekuvandudza ye180 ~ 220 ℃ kuburikidza neheater yekuvandudza, uye rozopinda kubva pasi pemuchina unogadzirisa uchibva pasi kuti unyungudike uye unyerere adsorbent. Gasi rekugadzirisa rinobuda kubva pamusoro pemuchina unoomesa wopinda muchina unoparadzanisa gasi rekugadzirisa mushure mekutonhodzwa nechinhu chinotonhorera unobva kumusoro. Mushure mekuparadzanisa mvura, rinopinda mugomba remuchina unopinza mvura.
Mushure mekupfuura nepakati peyuniti, mvura iri mugasi rechisikigo rakaoma inosvika ≤ 1ppm.
Midziyo mikuru ishongwe yekunyungudutsa mvura, hita yekudzoreredza, cooler yegesi yekudzoreredza, gadziriso yegesi yekudzoreredza uye compressor yegesi yekudzoreredza.
Nguva yekutumira: Chikumi-03-2022