Iyunithi yokuhlanza igesi ye-Hydrogen sulfide

Isingeniso

Ngokuthuthuka komphakathi wethu, sikhuthaza amandla ahlanzekile, ngakho isidingo segesi yemvelo njengamandla ahlanzekile siyakhula. Kodwa-ke, ngesikhathi sokuxhashazwa kwegesi yemvelo, imithombo eminingi yegesi ivame ukuba ne-hydrogen sulfide, ezodala ukugqwala kwemishini namapayipi, ingcolise imvelo futhi ibeke engozini impilo yabantu. Ngokuthuthukiswa kwesayensi nobuchwepheshe, Ukusetshenziswa okubanzi kobuchwepheshe begesi yemvelo desulfurization kuye kwaxazulula lezi zinkinga, kodwa ngesikhathi esifanayo, izindleko zokuhlanzwa kwegesi yemvelo kanye nokwelashwa kuye kwanda ngokufanele.

Isimiso

I-molecular sieve desulphurization (ebuye ibizwe ngokuthi i-desulfurization) i-skid, ebizwa nangokuthi i-molecular sieve sweeting skid, iyithuluzi eliyinhloko ekuhlanzeni igesi yemvelo noma iphrojekthi yokubeka isimo segesi yemvelo.

Isisefo samangqamuzana i-alkali metal aluminosilicate crystal enesakhiwo samathambo kanye nesakhiwo esifanayo se-microporous. I-adsorbent esebenza kahle kakhulu, umthamo ophezulu we-adsorption kanye nokukhetha kwe-adsorption. Okokuqala, kuneziteshi eziningi ezinobukhulu obufanayo be-pore kanye nezimbobo ezihlelwe kahle esakhiweni se-molecular sieve, esingahlinzeki nje indawo enkulu kakhulu, kodwa futhi ikhawulela ukungena kwama-molecule amakhulu kunezimbobo; Okwesibili, ingaphezulu le-molecular sieve ine-polarity ephezulu ngenxa yezimpawu ze-ionic lattice, ngakho-ke inamandla okukhangisa aphezulu kuma-molecule angenayo i-unsaturated, ama-molecule e-polar kanye nama-molecule e-polarizable. Amanzi ne-hydrogen sulfide ama-molecule asezindaweni ezishisayo, futhi ububanzi be-molecule buncane kunobubanzi bembotshana yesisefo samangqamuzana. Lapho igesi eluhlaza equkethe amanzi okulandela umkhondo idlula embhedeni we-sieve yamangqamuzana ekamelweni lokushisa, ukulandelela amanzi kanye ne-hydrogen sulfide kuyamuncwa, Ngakho-ke, okuqukethwe kwamanzi ne-hydrogen sulfide egesini yokudla kuyancishiswa, futhi inhloso yokuphelelwa amanzi emzimbeni kanye ne-desulfurization iyafezeka. Inqubo ye-adsorption ye-molecular sieve ihlanganisa ukufiphala kwe-capillary kanye nokukhanga ngokomzimba okubangelwa amandla e-van der Waals .Ngokwezibalo zika-Kelvin, ukufingqa kwe-capillary kuncipha ngokunyuka kwezinga lokushisa, kuyilapho ukunyuswa komzimba kuyinqubo ye-exothermic, futhi ukuminyana kwakho kwehla ngokunyuka kwezinga lokushisa. futhi iyanda ngokunyuka kwengcindezi; Ngakho-ke, inqubo ye-adsorption ye-sieve yamangqamuzana ivame ukuqhutshwa ekushiseni okuphansi nokucindezela okukhulu, kuyilapho ukuvuselelwa kokuhlaziya kwenziwa ekushiseni okuphezulu nokunciphisa ukucindezela. Ngaphansi kwesenzo sokushisa okuphezulu, igesi ehlanzekile futhi ephansi yokuvuselela igesi, i-adsorbent ye-molecular sieve ikhulula i-adsorbate ku-micropore ekugelezeni kwegesi yokuvuselela kuze kube yilapho inani le-adsorbate ku-adsorbent lifinyelela ezingeni eliphansi kakhulu. Futhi inamandla okukhangisa amanzi kanye ne-hydrogen sulfide kusuka kugesi lokuphakelayo, ibona ukuvuselelwa kanye nenqubo yokuvuselela kabusha yesisefo.

Inqubo yezobuchwepheshe

Ukugeleza kwenqubo kuboniswa kumdwebo. Iyunithi yamukela inqubo yombhoshongo emithathu, umbhoshongo owodwa wokukhangisa, umbhoshongo owodwa wokuvuselela kanye nombhoshongo owodwa wokupholisa.Lapho igesi yokuphakelayo ingena eyunithi, izinga lokushisa legesi lokuphakelayo lincishiswa yiyunithi yokupholisa kuqala, bese amanzi amahhala ekhishwa i-coalescence separator, bese ingena embhoshongweni we-molecular sieve desulfurization a-801, a-802 kanye no-803. Amanzi ne-hydrogen sulfide kugesi ephakelayo adsorbed ngesisefo semolekyuli ukuze kubonakale inqubo yokuphelelwa amanzi emzimbeni kanye ne-hydrogen sulfide adsorption.Igesi ehlanziwe yokuphelelwa amanzi emzimbeni kanye nokususwa kwe-hydrogen sulfide ingena kusihlungi sothuli segesi yomkhiqizo ukuze kukhishwe uthuli lwesisefo se-molecular futhi ithunyelwa njenge igesi yomkhiqizo.

Isisefo samangqamuzana sidinga ukuvuselelwa ngemva kokukhangisa inani elithile lamanzi ne-hydrogen sulfide.Ingxenye yegesi yomkhiqizo iholelwa ngaphandle kwegesi yomkhiqizo ngemva kokuhlunga uthuli njengegesi yokuvuselela. Ngemuva kokuthi igesi ishiselwe ku-270 ℃ esithandweni sokushisa, umbhoshongo uyashisisa kancane kancane ube ngu-270 ℃ ukusuka phezulu kuye phansi ngokusebenzisa umbhoshongo we-molecular sieve desulfurization oqede inqubo yokukhanga, ukuze amanzi ne-hydrogen sulfide adsorbed kusihlungo se-molecular. ingaxazululwa ukuze ibe igesi ecebile yokuvuselela futhi iqedele inqubo yokuvuselela.

Igesi ecebile yokuvuselela ngemva kokuphuma embhoshongweni wokuvuselela ingena ku-condenser yegesi yokuvuselela ukuze ipholiswe cishe ku-50 ℃, futhi igesi iyapholiswa futhi inikezwe kusihloko esivuthayo.

I-molecular sieve tower idinga ukupholiswa ngemva kokuvuselelwa. Ukuze ululame ngokugcwele futhi usebenzise amandla okushisa, igesi yokuvuselela iqala ukusetshenziswa njengegesi ephephethayo ebandayo, futhi umbhoshongo upholiswa ufinyelele cishe ku-50 ℃ ukusuka phezulu kuye phansi ngokusebenzisa umbhoshongo we-molecular sieve desulfurization oqede inqubo yokuvuselela. Ngesikhathi esifanayo, ishisa ngokwayo. Ngemuva kokuthi igesi ephephethayo ebandayo iphume embhoshongweni wokupholisa, ingena esithandweni sokushisa igesi sokuvuselela ukuze ifudumale, bese ivuselela umbhoshongo we-molecular sieve desulfurization njengegesi yokuvuselela ethambile. Idivayisi ishintsha njalo ngamahora angu-8.

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