Ukuphelelwa ngamanzi kweGesi yeNdalo

Amanzi kunye ne-ethanol zenza i-azeotrope ethintela ukuba amanzi amaninzi anokukhutshwa nge-distillation eqhelekileyo.


Iinkcukacha zeMveliso

1.I-Ethanol yokomisa nge-molecular sieves
Amanzi kunye ne-ethanol zenza i-azeotrope ethintela ukuba amanzi amaninzi anokukhutshwa nge-distillation eqhelekileyo.
Inkqubo ye-molecular sieve ye-Vogelbusch ivumela ukuchithwa kwe-ethanol edlulileyo kwi-95% yobunyulu.Isusa amanzi kumxube we-ethanol/umphunga wamanzi ophuma kwikholamu yokulungisa ukuze ufumane imveliso ephelelwe ngamanzi.Ukomisa kwale mveliso kunokulungelelaniswa ukuhlangabezana neenkcukacha - naphi na ukusuka kwi-bioethanol enomxholo wamanzi we-0.5 % ukuya kwi-ethanol eyomileyo kwi-pharmaceutical okanye kwi-industrial applications kunye nomthamo wamanzi we-0.01 % okanye ngaphantsi.
Iinketho zoyilo
Ngokuxhomekeke kwimeko ye-hydrous ethanol feedstock kunye nobukho beplanti ye-alcohol distillation, kukho iindlela ezimbini ezahlukeneyo zokuyila kwiyunithi yokuchithwa kwamanzi: edibeneyo okanye yodwa.

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2.Iiyunithi zokomisa ezidityanisiweyo zokomisa umphunga
Zidityaniswe nedistillation kwaye zifumana umphunga we-ethanol ene-hydrous ngokuthe ngqo kwikholamu yokulungiswa.Ukuhlaziywa, okanye ukucocwa, umjelo ubuyiselwa kwidistillation ukuze kubuyiselwe i-ethanol.
Inzuzo enkulu yenkqubo edibeneyo kukucutha okukhulu kokusetyenziswa kwamandla xa kuthelekiswa neenkqubo ezingadityaniswanga.Ukudityaniswa kobushushu obungamandla wokuphelelwa ngamanzi emzimbeni kunye nedistillation/rectification/evaporation - inkqubo yobunini eyaziswa yiVogelbusch - ikwanciphisa iindleko ezinkulu.
Ukutya kufuna ubuncinci boxinzelelo lwe-0.5 barg.

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Iiyunithi zokumisa zodwa zokomisa ulwelo
zisetyenziselwa ulwelo lwe-ethanol enamanzi olusuka kwindawo yokugcina.I-ethanol enamanzi ifakwe ngumphunga kwikholamu encinci yokuphinda isetyenziswe.Ukuhlaziywa, okanye ukucocwa, umjelo ubuyiselwa kwikholamu yokuphinda isetyenziswe ukuze kubuyiselwe i-ethanol.
Ukusetyenziswa kwamandla eyunithi yokomisa i-ethanol kuncitshiswe luyilo olufanelekileyo lokubuyisela ubushushu phantsi kokuqwalaselwa kwesondlo kunye neemeko zokusetyenziswa.
Inkqubo yomgaqo
I-molecular sieve dehydration isebenzisa inkqubo ye-adsorption usebenzisa i-synthetic zeolite, i-crystalline, i-porous material eninzi.Inkqubo isekelwe kumgaqo wokuba ubudlelwane be-zeolite bamanzi buguquka kwiingcinezelo ezahlukeneyo.Ukulayishwa kwamanzi kwi-zeolite kuxhomekeke kuxinzelelo oluyinxenye lwamanzi kwisondlo esinokuphenjelelwa ngokuguqula uxinzelelo.

Inkqubo ye-TEG yokuphelelwa ngamanzi emzimbeni |Inkqubo yokuphelisa amanzi ngegesi
Kwishishini lokuvelisa i-oyile kunye negesi, abaqhubi bezityalo kufuneka bahlale bejonga indlela yokususa ukungcola kunye nokuhambisa iimveliso ezicocekileyo.Ungcoliseko olukhulu olungafunekiyo olunxulunyaniswa nerhasi yendalo ngumphunga wamanzi.Ukuphelisa ukufuma okungafunekiyo kwigesi yendalo efunyenweyo, abavelisi bemizi-mveliso basebenzisa iindlela ezahlukeneyo zokuphelisa igesi, kubandakanya neenkqubo ze-triethylene glycol.
Yintoni iYunithi yegesi ye-TEG yokuTyeka emanzini?
I-triethylene glycol (TEG) inkqubo yokuphelelwa ngamanzi emzimbeni yigesi yinkqubo esetyenziselwa ukuphelisa umphunga wamanzi kwirhasi yendalo esandula ukufunyanwa.Esi sixhobo sokomisa sisebenzisa ulwelo lwe-triethylene glycol njenge-agent ephelisa amanzi emzimbeni ukutsala amanzi kumlambo wegesi yendalo ehamba phezu kwawo.Inzuzo enkulu yokusebenzisa iyunithi ye-TEG yokuphelelwa ngamanzi emzimbeni kukukwazi ukuseyisa ulwelo lokumisa amaxesha amaninzi phambi kokutshintshwa.
Amalungu eYunithi yokuKhusela iGlycol
Ukuqhuba ngokufanelekileyo umsebenzi wayo wokomisa igesi yendalo, iyunithi yokuphelelwa ngamanzi emzimbeni ye-glycol kufuneka ibe nezinto ezibalulekileyo.
Ezi ndawo zibalulekileyo zokuseta i-glycol drying zibandakanya:
☆ Izikhuhla zokungena
☆ Iinqaba zoqhagamshelwano
☆ IiReboilers
☆ Iitanki zokuqhafaza
☆ Isahluli seFlash
Ngelixa izinto ezimbini zokuqala zibalulekile ekomisweni kwerhasi yendalo, ezi zintathu zokugqibela zisetyenziselwa ukuhlaziya i-glycol ukunceda eminye imijikelezo yokuphelelwa ngamanzi emzimbeni.

Molecular Sieve Dehydration Unit 01

Molecular Sieve Dehydration Unit 02

Isebenza Njani iYunithi yeGesi ye-TEG yokuKhawulelwa kwamanzi?
Iyunithi ye-TEG yokuphelisa amanzi edibeneyo izigaba zokomisa igesi yendalo kunye neenkqubo zokuvuselela i-glycol.Ukuqala, irhasi yendalo exutywe nomphunga wamanzi ihanjiswa ngokungena kwigesi yokutya kwi-scrubber yegesi, isusa amanzi asimahla ahambelana nawo.Oku kususa uninzi lwamanzi axhonywe kumjelo werhasi kunye nokungcola okuncinci kunye neehydrocarbons zasimahla.Nangona kunjalo, irhasi yendalo okwangoku isathathwa ngokuba "ifumile" kwaye kufuneka yomiswe ngakumbi.
Emva koko, igesi idluliselwa kwiindlela zokudibanisa kwinqaba yoqhagamshelwano, apho inqanaba lokugqibela lokumisa lenzeka.Inqaba yoqhagamshelwano eqhelekileyo yenziwe ngamanqanaba acwangciswe ngononophelo aqukethe i-glycol engenamanzi okanye "i-lean" engamanzi.Irhasi yendalo idla ngokungeniswa nge-inlet esezantsi kwinqaba yoqhagamshelwano kwaye inyuka ngayo ngelixa inxibelelana rhoqo ne-glycol fluid kumanqanaba ahlukeneyo.Nakuphi na ukufuma okushiyekileyo ngaphakathi kwerhasi kutsalwa kuyo njengoko kunyukela phezulu kwikholamu, apho umjelo wokuphuma ulindele ukuqhuba irhasi eyomileyo esanda kumisa kwiitanki zokugcina okanye kwezinye izinto.Ngelixa oku kusenzeka, isisombululo se-glycol esiqulethwe kwinqaba yoqhagamshelwano siba "sisityebi" njengoko sithatha umswakama ofunekayo ukuvuselelwa kwayo.Ngelixa i-glycol eyomileyo isondliwa kwinkqubo nge-inlet enye, i-glycol emanzi isuswa ngenye i-outlet kwaye ihanjiswe kwinkqubo yokuvuselela.
Inkqubo yokuhlaziya i-glycol ebhityileyo iqala xa i-glycol "emanzi" ifakwe kwi-flash separator enezigaba ezithathu eyasusa umphunga wamanzi oqokelelweyo, ukungcola, kunye namafutha.Ezi ngcoliseko zihanjiswa kwiitanki zokugcina ukuze kukhutshwe kamva i-glycol engenakungcola ihanjiswe kwiyunithi ye-reboiler.
I-reboiler ihlukanisa amanzi afunliweyo kwi-glycol ngokuxutywa kwe-distillation.Amanzi abila kwi-212oF, ngelixa indawo yokubilisa ye-glycol yi-550oF.I-Ethylene glycol iya kuqala ukuthotywa kwi-404oF, ngoko ke abaninzi abaqhubi bagcina iinkqubo zabo ze-distillation phakathi kwe-212oF kunye ne-400oF.Nawaphi na amanzi ashiyekileyo ngaphakathi kwe-glycol apheliswa njengomphunga, kwaye "i-lean" okanye i-glycol eyomileyo ngoku ilungele ukubuyiselwa kwinqaba yoqhagamshelwano ukuze iqhubeke imijikelezo yegesi yendalo yokuphelelwa ngamanzi emzimbeni.

TEG Dehydration 01

TEG Dehydration 02

Izizathu zokuSusa uMphunga waManzi kwiGesi yeNdalo
Ukugcinwa komphunga wamanzi ngaphakathi kwerhasi yendalo kunxulunyaniswa nokuphazamiseka kuzo zombini izixhobo zokuvelisa kunye nomgangatho werhasi ngokwayo.Izizathu ezibalulekileyo zokuphelelwa ngamanzi emzimbeni ngerhasi zichazwe ngezantsi:
☆ Ukufuma okugciniweyo kuya kubangela umhlwa okhawulezileyo wemibhobho yokuthutha igesi kunye nemikhumbi yokugcina.Ukuchithwa kwegesi kuthintela ukuphendula kwe-oxidative phakathi kwamanzi kunye nemibhobho yesinyithi.
☆ Ukuthintelwa kokwenziwa kwe-hydrate kunciphisa amathuba okufakwa kwemibhobho kunye / okanye ukhukuliseko
☆ Ukususwa kobumdaka obunokuthi butshintshe umgangatho werhasi obonelelwa ngeenkqubo ezahlukeneyo ezinxulumeneyo
☆ Ukususwa komphunga wamanzi kwirhasi yendalo kuphucula ixabiso layo lokufudumeza, kuyenza ibe yindlela efanelekileyo yamandla kwiinkqubo zokushisa.
☆ Ukususwa kokufuma kwirhasi yendalo ehanjiswa ngemibhobho yezothutho kukwathintela ukwakheka kweeslugs ezibangela ukungcangcazela kunye noxinzelelo lomatshini olukhokelela ekugugeni kunye nokuqhekeka kwabo ngokukhawuleza.
Inkqubo yokuphelelwa ngamanzi kwegesi yendalo
Ukuphelelwa ngamanzi kwerhasi yendalo kunokufezekiswa ngeenkqubo ezahlukeneyo, kuquka ezi zilandelayo:
☆ I-Triethylene glycol (TEG) yokuphelelwa ngamanzi emzimbeni
☆ I-Adsorption usebenzisa ii-sorbents eziqinileyo
Nangona zombini iindlela zingasetyenziselwa ukomisa ngokufanelekileyo igesi yendalo, ziyahluka kwizinto kunye nobuchule obusetyenziselwa ukufezekisa ukuphelelwa ngamanzi emzimbeni.I-TEG dehydration isebenzisa i-medium medium (i-triethylene glycol) ukukhupha umswakama kwigesi yendalo efunyenweyo, ngelixa i-adsorption isebenzisa izinto eziqinileyo ze-desiccant ukuphelisa umswakama ohambelana negesi eveliswayo.


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