Chifukwa Chiyani Alumina Yoyatsidwa Ndi Yofunika Mu Njira Yobwezeretsa Sulfur Ya Claus?
Zothandizira za alumina zomwe zimagwiritsidwa ntchito mu Claus Sulfur Recovery Units zimayimira gulu lapamwamba kwambiri komanso logwiritsidwa ntchito kwambiri pakugwiritsa ntchito pulogalamuyi. -aluminiyamu yoyera kwambiri imapangitsa kuti hydrogen sulfide ichitike (H2S) ndi sulfure dioxide (SO2) kupanga elemental sulfure (S), pamene nthawi imodzi imalimbikitsa hydrolysis ya sulfure-yokhala ndi-zinthu monga carbonyl sulfide (COS) ndi carbon disulfide (CS2), potero kumawonjezera kuchira kwa sulfure.
Kodi Claus Process Sulfur Recovery Ndi Chiyani?
Njira ya Claus ndi imodzi mwamakina omwe amagwiritsidwa ntchito kwambiri pakubwezeretsa sulfure m'makampani amakono. Amagwiritsidwa ntchito kwambiri kutembenuza mpweya wa acidic wokhala ndi H2S kupita ku elemental S, ndikuchepetsa kuipitsidwa kwa chilengedwe komwe kumachitika chifukwa cha kutulutsa mwachindunji kwa sulfide. Kachitidwe ka Claus sulfur recovery kamagwira ntchito m'mafakitale osiyanasiyana omwe amatulutsa kuchuluka kwa sulfure{1}}yokhala ndi mipweya ya asidi, monga:
* Makina oyenga mafuta: kubweza sulfure kuchokera ku mipweya ya asidi yomwe imapangidwa panthawi yoyenga;
* Kukonza gasi wachilengedwe: kuchiza mipweya ya asidi yomwe imapangidwa panthawi ya desulfurization ya gasi;
* Makampani opanga mankhwala a malasha: kuyeretsa sulfure-yokhala ndi mipweya ya asidi yomwe imapangidwa panthawi yoyeretsa malasha ndi kuyeretsa ma syngas;
* Makampani ophikira: kusintha hydrogen sulfide mu mpweya wa uvuni wa coke kukhala sulfure wamba;
* Makampani a petrochemical: kubwezeretsanso sulfure kuchokera ku H2S-zokhala ndi mpweya;
* Mafakitale ogwirizana ndi Sulfidi-: kuthana ndi sulfure{1}}yokhala ndi mpweya wonyansa wochokera ku sulfuric acid, viscose, ndi chemical fibers.
Kodi Alumina Catalyst Ali Kuti Mu Njira Ya Claus?
Chigawo chanthawi zonse cha Claus process sulfure chimakhala ndi chakudya cha gasi wa asidi, ng'anjo ya gasi wa asidi, boiler yotenthetsera zinyalala, ma condensers a sulfure, zopangira zida za Claus, ndi dzenje lamadzimadzi la sulfure kapena thanki yosindikizira sulfure.
Cholinga chachikulu cha ndondomeko ya Claus ndi momwe H2S ndi SO2kupanga elemental sulfure. M'malo mwake, gawo lina la H2S amawotchedwa koyamba kuti apange SO2; zotsatira za SO2kenako amachitira ndi otsala a H2S pa chothandizira-zochita za Claus-kutulutsa nthunzi wa sulfure, womwe umatulutsa madzi a sulfure akazizira.
Chifukwa chake,Claus alumina zolimbikitsaamagwiritsidwa ntchito makamaka mu zida zopangira izi. Ndipo mabedi opangira zopangira za Claus nthawi zambiri amagwiritsa ntchito aluminiyamu.
Ntchito Zoyambitsa Alumina Catalyst Mu Njira Ya Claus
Kuchititsa chidwi chachikulu cha Claus. Iyi ndiye ntchito yofunika kwambiri! Popanda chothandizira, kuchuluka kwa zomwe zimachitika pakati pa H2S ndi SO2ndi pang'onopang'ono; Komabe, aluminiyamu yoyatsidwa imapereka malo ambiri omwe akugwira ntchito pamwamba, zomwe zimapangitsa kuti anthu azitha kuyanjanitsa mofulumira pa kutentha kovomerezeka kwa mafakitale.
Kuthandizira COS hydrolysis. Kuwonjezera pa H2S, gasi wa asidi nthawi zambiri amakhala ndi CO2, ma hydrocarbon, ndi ma organic sulfides ochepa. Mu ng'anjo ya kutentha, sulfure ina-yokhala ndi organic compounds imapanga COS ndi CS2. Alumina yoyendetsedwa imathandizira kutembenuka kwa sulfure mkati mwa COS kubwerera ku H2S, kulola kuti alowe mu dongosolo la Claus reaction; Izi ndizofunikira kuti muwonjezere kuchuluka kwa kuchira kwa sulfure.
Kusintha kwa CS2hydrolysis. CS2ndi chinthu chodetsa nkhaŵa kwambiri mu ndondomeko ya Claus. Hydrolysis wa CS2amasintha sulfure yomwe ili mkati mwa molekyulu kukhala H2S, kuwapangitsa kuti atenge nawo gawo pazotsatira za Claus; iyi ndi ntchito ina yofunika kwambiri ya zida zoyambitsa alumina.
Chifukwa Chiyani Alumina Woyambitsa Ndi Wofunika Pakubwezeretsanso Sulfur ya Claus?
Kwa alumina{{0}zothandizira za Claus, chinsinsi sikungokulitsa Al2O3zomwe zili. M'malo mwake, pamafunika kukhathamiritsa kwathunthu kwa malo enaake, mawonekedwe a pore, zochitika zapamtunda, komanso kukana kuletsa.
Chifukwa cha kukula kwa mamolekyu a H2S, NDI2, COS, CS2,ndi H2O-komanso mfundo yakuti Claus reaction ikukhudza kufalikira kwa-magawo agasi omwe ali mu catalyst particles-kuwongolera kukula kwa pore ndikofunikira kwambiri. Ngati pores ndi ang'onoang'ono, kufalikira kwa reactant kumalephereka ndipo kukana kufalikira kwamkati kumawonjezeka, kulepheretsa kugwiritsidwa ntchito kwathunthu kwa malo omwe akugwira ntchito mkati mwa chothandizira. Mosiyana ndi zimenezo, ngati pores ndi aakulu kwambiri, chiwerengero cha malo omwe akugwira ntchito chimachepa. Chifukwa chake, zopangira zamakampani a Claus zimafunikira kugawa kokulirapo kwa pore, ndipo aluminiyamu yolumikizidwa imatha kupereka zofunikira zapamtunda ndi ma pore kuti akwaniritse izi.
Sinmat Chemicalimapereka chiyero chapamwamba-chapamwambaactivated alumina chothandiziramakamaka kwa Claus ndondomeko kuchira sulfure. Kuti mudziwe zambiri, chonde onani zaadamulowetsa aluminiyamugulu mankhwala.
