Ban tamis moleculaire lañuy jëfandikoo ci raffinage petrole FCC catalysts?
FCC (Fluid Catalytic Cracking) catalyst yi xeetu macceer katalitik yu bari lañu yu ñuy jëfandikoo ci liggéeyum raffinage petrol ngir soppi hydrocarbure yu diis yi ñu nekk produit yu am valeur bu rëy lu ci melni essence, gaz petroleum liquefié, ak oil bu woyof. Dañuy amaale ay komposant yu am doole, ay macceer matrix, ay liant ak ay filler.
Xeetu ak liggéeyu tamis moleculaire ngir katalis FCC
Katalis FCC yi dañu am asidite bu rëy, stabilite hydrothermal bu baax, ak màndarga yu dëgër yuy tere wear, loolu moo leen may ñu mëna def ay reaction yu melni xar, isomerisasioŋ, ak toxal hydrogen ci hydrocarbure macromoleculaire ci biir tàngoor wu metti. Rax ci dolli, suñu yamale xeetu tamis moleculaire bi, limu am ci suuf su bariwul, asidite bi, ak porose yi, mën nañu gëna baaxal produit yiñ bëgga am lu ci melni essence, propylene ak LPG.
Kon, ay tamis moleculaire yu wuute ci katalis FCC yi ñooy njëkka def cër katalitik yuy mottali. Xeetu tamis moleculaire Y- ak seeni jëmm yuñ soppali ñooy lëf yi gëna am solo ci katalis FCC. Tamis moleculaire beta mën nañu ko jëfandikoo ngir gëna mëna xar, isomerisasioŋ, ak tànneef produit ci ay hydrocarbure yuñ tànn. Bi mu nekkee luy yokk ci liggéey, ZSM-5 mën na yokk njuréefi olefin yu woyof yi. Ak ZSM-11 tamis moleculaire ñu ngi koy jëfandikoo ngir xaaj hydrocarbure yi ak yamale olefine yu woyof yi.
Tamis moleculaire USY: composant actif bi gëna am solo
Y-xeetu tamis moleculairemooy lëf li gëna am solo - ci FCC, akY bu dëgër lool (USY)mooy xeetu zeolite bi gëna bari. - silice Y walaY desaluminé (DAY)ñoom ñaar ñépp ay tamis moleculaire USY lañu. USY mën nañu ko jàppee ni xeetu zeolite Y buñu def ay paj ngir dakkal ko lu ci melni dealumination ak paj hydrothermal.
Ginaaw catalyseur FCC yi dañuy dundu ay reaction ak ay regeneration yu bari, dañu wara mëna dékku tàngoor wu metti ak environmaa bu bari vapër. Kon, USY dafay wane stabilite hydrothermal bu kawe, bañaale bu dëgër ci deactivation vapër, stabilite kaadar bu kawe, ak kàttan bu baax ci xar molecule yu mag.
REY/RE{0}}USY Tamis Moléculaire: Equilibre Liggéey, Coke Ak Dayo
Zeolites Y yuñ soppee ci suuf si bariwul luñu koy jëfandikoo ci katalis FCC. Ëlëm yu bari yi am ci suuf ñooy La, Ce, ak Nd. Weccoo ion suuf su bariwul mën na yokk stabilite termik, stabilite hydrothermal, asidite, liggéey, ak tànneef coke ci xeetu tamis moleculaire zeolite Y{5}}.
Kon,REY (Rare-Suuf Y)akRE-USY (Ytamis moleculaire ñu ngi koy gëna jëfandikoo ci petrol FCC, ngir gëna mëna liggéey ak dayo, ak ngir am ekilibre ci diggante liggéey catalytic, rendement coke, ak tànneef essence / gasoil.
Tamis Moleculaire Beta: Dafay Yokkatal Soppi Hydrocarbure yi
Beta du tamis moleculaire bi gëna mag ci katalis FCC yi, wuute na ak USY. Waaye, dafa gëna màndargaal formulaasioŋ yu amul benn werante wala tamis moleculaire zeolite buñ soppali.
Tamis moleculaire betaam topologie BEA te dafa am sistem pore bu yaatu bu am ñatti dimension. Asiditeem bu dëgër bi ak chaine pore yu yaatu yi tax ñu mëna ko jëfandikoo ci aplikaasioŋu FCC ngir xar hydrocarbure, isomerisasioŋ, ak reaction yu jëm ci hydrocracking, ak itam ngir gëna mëna tànnee distillate digg bi ak gëna suqali soppi hydrocarbure yi.
ZSM-5 tamis moleculaire: dafay jàppale formaasioŋ olefine yu woyof yi
Rol buZSM-5 tamis moleculaireci anam yi FCC wuute, dafay dox ni FCC catalyst yokk. Bi nga xamee ni zeolite Y - mooy njëkka liggéey ci xar molecule yu diis yu yaatu -, ZSM{4}}5 dafay bàyyi xelam ci gëna soppi hydrocarbure yu am gasoil ba noppi gëna dooleel defar olefin yu woyof yi.
Zeolite ZSM{1}}5 dafa am kaadar MFI bu am jëmmal bu am porous yu ndaw, te dafay wane màndarga katalitik yu tànnee jëmm. Dugalug ZSM-5 ci sistem FCC dafay yokk njuréefi propylene, ethylene, LPG, ak olefin yu woyof, wàññi essence wala soppali composition olefin ci essence. Ak boole USY ak ZSM-5 tamis moleculaire dafay gëna fës ci sistem katalis FCC.
ZSM-11 Tamis Moléculaire: Dafay Yamale wala Xar-xar bu Tann Form
ZSM-11 tamis moleculairebokk na ci topologie MEL, muy nuru bu baax jumtukaayu MFI bu ZSM-5. Liggéeyam ci anam yi FCC di doxee, lu ci melni tànneef jëmm ak yamale olefin, ñoom itam ñu ngi méngoo ak tamis moleculaire ZSM-5.
Ci jëfu usine FCC, mën nañu jëfandikoo tamis moleculaire ZSM{2}11 ngir xar hydrocarbon, aromatisasioŋ, ak isomerisasioŋ, wala ñu jëfandikoo ko ni katalis FCC. Waaye, ci wàllu jëfandikoo FCC ci wàllu usine, tamis moleculaire ZSM-11 moo gëna néew solo ci ZSM-5.
Sinmat Chimiquemuy liggéey ci joxe tamis moleculaire zeolite ngir katalis FCC, lu ci melni tamis moleculaire Y (Nay, HY, USY, REY, RE{1}USY, DAY), tamis moleculaire Beta, tamis moleculaire ZSM-5, ak tamis moleculaire ZSM-11. Ngir am ci yeneen leeral, xoolal xëti leeral yi ci produit bi.
