Zeolite ZSM Series
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ZWM-35
ZSM-35 molecular sieve muaj hydrothermal stability, thermal stability, pore qauv thiab haum acidity, thiab yuav siv tau rau xaiv cracking / isomerization ntawm alkanes.
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ZWM-48
ZSM-48 molecular sieve muaj hydrothermal stability, thermal stability, pore qauv thiab haum acidity, thiab yuav siv tau rau xaiv cracking / isomerization ntawm alkanes.
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ZWM-23
Tshuaj muaj pes tsawg leeg: |na+n (H2O) 4 | [alnsi24-n o48]-mtt, n< 2
ZSM-23 molecular sieve muaj MTT topological lub luag haujlwm, uas muaj tsib lub nplhaib, rau lub nplhaib sib koom ua ke thiab kaum lub nplhaib sib koom ua ke tib lub sijhawm. Cov pores ib-seem muaj li ntawm kaum lub rings yog cov pores thaum uas tig mus uas tsis crosslinked ib leeg. Lub orifice ntawm kaum lub rings yog peb-dimensional wavy, thiab tus ntoo khaub lig seem yog teardrop zoo li tus.
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ZWM-22
Tshuaj muaj pes tsawg leeg: |na+n (H2O) 4 | [alnsi24-no48]-ton, n < 2
ZSM-22 pob txha pob txha muaj ib tuj topological qauv, uas muaj xws li tsib lub rings, rau ib tug tswv cuab rings thiab kaum memberedrings tib lub sij hawm. Cov pores ib-dimensional muaj li ntawm tenmembered rings yog parallel pores uas tsis crosslinked ib leeg, thiab lub orifice yog elliptical.
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ZSM-5 Series Shape-xaiv Zeolites
ZSM-5 zeolite tuaj yeem siv rau kev lag luam petrochemical, tshuaj lom neeg kev lag luam thiab lwm yam kev lag luam vim nws qhov tshwj xeeb peb-dimensional hla ncaj pore kwj dej, tshwj xeeb zoo-xaiv crackability, isomerization thiab aromatization muaj peev xwm. Tam sim no, lawv tuaj yeem siv rau FCC catalyst lossis additives uas tuaj yeem txhim kho cov roj av octane tooj, hydro/aonhydro dewaxing catalysts thiab chav tsev txheej txheem xylene isomerization, toluene disproportionation thiab alkylation. Cov roj av octane tooj tuaj yeem txhim kho thiab cov ntsiab lus olefin tuaj yeem nce ntxiv yog tias cov zeolites ntxiv rau FCC catalyst hauv FBR-FCC cov tshuaj tiv thaiv. Hauv peb lub tuam txhab, ZSM-5 serial shape-selective zeolites muaj qhov sib txawv ntawm silica-alumina piv, los ntawm 25 mus rau 500. Cov particle tis tuaj yeem hloov kho raws li cov neeg siv khoom xav tau. Lub peev xwm isomerization thiab kev ua haujlwm ruaj khov tuaj yeem hloov pauv thaum lub acidity yog hloov los ntawm kev hloov cov silica-alumina piv raws li koj xav tau.
