Siyigqibile ngempumelelo imveliso yethu kunye nokuhanjiswa kwe-300Nm3 /h yomsitho wokuhanjiswa kwesityalo se-Sinopec esisasazwa ngegesi ye-methane etyebileyo ye-hydrogen. Apha ndingathanda ukunika intshayelelo emfutshane kwinkqubo yokuveliswa kwe-hydrogen kwigesi yendalo.
Ngokusetyenziswa ngamandla ngamandla, ukufumana amandla amatsha kube ngumsebenzi obalulekileyo. Njengamandla anokubakho, i-hydrogen inemithombo eyahlukeneyo, phantse akukho ngcoliseko, ukusebenza kakuhle kokuguqulwa kunye namathuba amaninzi okusetyenziswa. Ukuveliswa kwe-hydrogen kwigesi yendalo kunokunciphisa ingxaki yamandla eTshayina ukuya kwinqanaba elithile kwaye kukhuthaze ngakumbi ukuguqulwa kwesakhiwo sokusetyenziswa kwamandla eTshayina.
Eli phepha liza kugxila kumgaqo wokuveliswa kwe-hydrogen kwigesi yendalo, inkqubo kunye netekhnoloji yokuveliswa kwe-hydrogen kwigesi yendalo, ukuhlelwa kobuchwepheshe bokuveliswa kwe-hydrogen kwigesi yendalo kunye nokubalwa kweendleko zokuveliswa kwe-hydrogen kwigesi yendalo.
1 Umgaqo kunye nenkqubo imveliso ye-hydrogen evela kwigesi yendalo
1.1Umgaqo wokuveliswa kwe-hydrogen kwigesi yendalo
Umgaqo wenkqubo yokuvelisa i-hydrogen yegesi yendalo kukulungisa igesi yendalo kwangaphambili, emva koko uguqule i-methane kunye nomphunga zibe yi-carbon monoxide kunye ne-hydrogen kwi-reformer, kwaye uguqule i-carbon monoxide ibe yi-carbon dioxide kunye ne-hydrogen kwi-shift tower emva kokubuyiselwa kobushushu obungafunekiyo. Isiseko sale nkqubo yeteknoloji sifezekiswa ngesiseko seteknoloji yokuguqula umphunga wegesi yendalo. Kwi-shift tower, ubushushu be-reaction bulawulwa xa kukho i-catalyst, kwaye i-carbon monoxide kwi-conversion gas isabela namanzi ukuvelisa i-hydrogen kunye ne-carbon dioxide.
Phantsi koxinzelelo olufanelekileyo kunye nobushushu, ii-alkanes kwigesi yendalo ziya kudlula kwiimpendulo ezahlukeneyo zeekhemikhali ukuvelisa igesi yokuguqula. Emva kokuba igesi yokuguqula idlule kwisixhobo se-PAS esixhotyiswe ngee-adsorbents ezahlukeneyo phantsi kolawulo oluzenzekelayo, i-carbon monoxide, i-carbon dioxide kunye nezinye izinto ezingcolileyo ziya kutsalwa yi-adsorption tower, kwaye i-hydrogen iya kuthunyelwa kwiyunithi edla igesi ukuze itsalwe i-adsorbent yokungcola. Emva kokutsalwa, igesi yohlalutyo ingathunyelwa kwi-shift furnace njenge-fuel, kwaye i-adsorbent nayo ingavuselelwa.
Ifomula ephambili yokusabela yile ilandelayo:
Igesi yendalo kunye namanzi ziyasabela kwi-800 ~ 900 ℃ kunye ne-nickel oxide catalyst ukuvelisa i-carbon monoxide kunye ne-hydrogen.
Ifomyula yokusabela yile: CH4 + H2O → CO + H2-Q
I-carbon monoxide kunye namanzi zisabela kwi-300-400 ℃ kunye ne-ferric oxide catalyst ukuvelisa i-carbon dioxide kunye ne-hydrogen.
Ifomyula yokusabela yile: CO + H2O → CO2 + H2 + Q
Ukongeza, iimfuno ezifanelekileyo zesalathisi sobugcisa kwinkqubo yokulungiselela zezi zilandelayo:
Uxinzelelo ngokubanzi yi-1.5 ~ 2.5 MPa, kwaye ukusetyenziswa kwegesi yendalo yi-0.4 ~ 0.5 m3 / m3 hydrogen;Ixesha lokusebenza: > 8000h;Isikali semizi-mveliso: 1000 m3 / H ~ 100000 m3 / h.
1.2 Inkqubo yokuvelisa igesi yendalo i-hydrogen
Inkqubo yokuvelisa i-hydrogen yegesi yendalo ibandakanya ikakhulu iinkqubo ezine: unyango lwangaphambi kokusetyenziswa kwegesi, ukuguqulwa komphunga wegesi yendalo, ukuguqulwa kwe-carbon monoxide kunye nokucocwa kwe-hydrogen.
Inyathelo lokuqala linyathelo lonyango lwangaphambi kwezinto eziluhlaza. Unyango lwangaphambi apha lubhekisa kakhulu ekususweni kwegesi eluhlaza. Kwinkqubo yokwenyani, igesi yendalo i-cobalt molybdenum hydrogenation series zinc oxide isetyenziswa ngokubanzi njenge-desulfurizer ukuguqula i-organic sulfur kwigesi yendalo ibe yi-inorganic sulfur ize emva koko iyisuse. Ukuhamba kwegesi yendalo eluhlaza ephathwayo apha kukhulu, ngoko ke umthombo wegesi yendalo onoxinzelelo oluphezulu ungasetyenziswa okanye umda omkhulu unokuqwalaselwa xa kukhethwa i-compressor yegesi yendalo.
Inyathelo lesibini kukuguqulwa komphunga wegesi yendalo. I-Nickel catalyst isetyenziswa kwi-reformer ukuguqula ii-alkanes kwigesi yendalo zibe yigesi yokutya eneziqulatho eziphambili ze-carbon monoxide kunye ne-hydrogen.
Emva koko, i-carbon monoxide iyaguqulwa ukuze ivumelane nomphunga wamanzi xa kukho i-catalyst ukuze ivelise i-hydrogen kunye ne-carbon dioxide ukuze ifumane igesi yokuguqula ezona zinto ziphambili ziyi-hydrogen kunye ne-carbon dioxide. Ngokweqondo lobushushu obahlukeneyo bokuguqula, inkqubo yokuguqula i-carbon monoxide inokwahlulwa ibe ziintlobo ezimbini: ukuguqulwa kobushushu obuphakathi kunye nokuguqulwa kobushushu obuphezulu. Ubushushu bokuguqula ubushushu obuphezulu bumalunga ne-360 ℃, kwaye inkqubo yokuguqula ubushushu obuphakathi imalunga ne-320 ℃. Ngophuhliso lweendlela zobugcisa zokumelana, ukuseta inkqubo yamanqanaba amabini yokuguqulwa kobushushu obuphezulu kunye nokuguqulwa kobushushu obuphantsi kuye kwamkelwa kwiminyaka yakutshanje, nto leyo enokonga ukusetyenziswa kwezixhobo. Nangona kunjalo, kwimeko yokuba umxholo we-carbon monoxide kwigesi yokuguqula awuphezulu, kuphela ukuguqulwa kobushushu obuphakathi kunokwamkelwa.
Inyathelo lokugqibela kukucoca i-hydrogen. Ngoku inkqubo yokucoca i-hydrogen esetyenziswa kakhulu yinkqubo ye-PAS, eyaziwa ngokuba yinkqubo yokucoca nokwahlula i-PSA. Le nkqubo inamandla aphantsi okusebenzisa, inkqubo elula kunye nobunyulu obuphezulu bemveliso ye-hydrogen. Kwinqanaba eliphezulu, ubunyulu be-hydrogen bunokufikelela kwi-99.99%.
Ixesha lokuthumela: Novemba-11-2021