Zeolite molecular sieves ali ndi mawonekedwe apadera a kristalo nthawi zonse, omwe ali ndi pore ya kukula kwake ndi mawonekedwe ake, ndipo ali ndi malo akuluakulu enieni. Sieves ambiri a zeolite molekyulu amakhala ndi malo olimba a asidi pamwamba, ndipo pali gawo lolimba la Coulomb mu pores crystal polarization. Makhalidwe awa amapangitsa kukhala chothandizira kwambiri. Heterogeneous catalytic reactions ikuchitika pa chothandizira olimba, ndipo chothandizira ntchito yokhudzana ndi kukula kwa kristalo pores wa chothandizira. Pamene sieve ya molekyulu ya zeolite imagwiritsidwa ntchito ngati chothandizira kapena chonyamulira chothandizira, kupita patsogolo kwa chothandizira kumayendetsedwa ndi kukula kwa pore kwa zeolite molecular sieve. Kukula ndi mawonekedwe a kristalo pores ndi pores amatha kukhala ndi gawo losankha pakukhudzidwa kothandizira. Pazinthu zomwe zimachitika nthawi zonse, ma sieve a molekyulu a zeolite amatenga gawo lotsogola momwe amachitira ndikuwonetsa magwiridwe antchito osankha. Kuchita uku kumapangitsa kuti ma sieve a zeolite akhale chinthu chatsopano chothandizira champhamvu.
Kanthu | Chigawo | Deta yaukadaulo | |||
Maonekedwe | Chigawo | Extrudate | |||
Dia | mm | 1.7-2.5 | 3-5 | 1/16 " | 1/8 " |
Granularity | % | ≥98 | ≥98 | ≥98 | ≥98 |
Kuchulukana kwakukulu | g/ml | ≥0.60 | ≥0.60 | ≥0.60 | ≥0.60 |
Abrasion | % | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.25 |
Kuphwanya mphamvu | N | ≥40 | ≥70 | ≥30 | ≥60 |
Deformation coefficient | - | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
Static H2O adsorption | % | ≥20 | ≥20 | ≥20 | ≥20 |
Static methanol adsorption | % | ≥14 | ≥14 | ≥14 | ≥14 |
Kuuma kwakuya kwa mpweya, gasi, alkane, refrigerant ndi zakumwa
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Galimoto brake system