Desiccant
-
Gamma activated alumina/Gamma Alumina Catalyst Carriers/gamma alumina bead
Aitema
Vaega
I'uga
Alumina Vaega
Gamma Alumina
Fa'asoaina o le Lapalapala
D50
μm
88.71
<20μm
%
0.64
<40μm
%
9.14
>150μm
%
15.82
Fuafuaga Fa'a-Kemikolo
Al2O3
%
99.0
SiO2
%
0.014
Na2O
%
0.007
Fe2O3
%
0.011
Galuega Fa'aletino
PETA
m²/g
196.04
Pore Volume
Ml/g
0.388
Aveave le Pore Tele
nm
7.92
To'atele Tele
g/ml
0.688
Ua maua le alumina e le itiiti ifo i le 8 foliga, o α- Al2O3, θ-Al2O3, γ- Al2O3, δ- Al2O3, η- Al2O3, χ- Al2O3, κ- Al2O3 ma ρ- Al2O3, o latou uiga faʻavae macroscopic. e eseese foi. Gamma activated alumina o se tioata faʻapipiʻi vavalalata, e le mafai ona faʻafefe i le vai, ae solu i le acid ma le alkali. Gamma activated alumina o se lagolago malosi vaivai, e maualuga le liusuavai 2050 ℃, alumina gel i le hydrate fomu e mafai ona faia i totonu o le oxide ma le maualuga o le porosity ma le maualuga maualuga, o loʻo i ai suiga i vaega o le vevela lautele. I le maualuga o le vevela, ona o le dehydration ma le dehydroxylation, o le Al2O3surface e foliga mai o le faʻamaopoopoina o le okesene unsaturated (centre alkali) ma le alumini (centre acid), faʻatasi ai ma le catalytic activity. O le mea lea, alumina e mafai ona faʻaaogaina e fai ma ave, faʻamalosi ma cocatalyst.Gamma activated alumina e mafai ona pa'u, granules, fasi pepa po'o isi. E mafai ona matou faia e pei o lou manaoga.γ-Al2O3, na taʻua o le "alumina faʻagaoioia", o se ituaiga porous maualuga faʻasalalau mea mautu, ona o lona fausaga pore fetuutuunai, tele vaega faapitoa luga, faatinoga adsorption lelei, luga ma le lelei o le acidity. ma le mautu mafanafana lelei, microporous luga ma meatotino manaomia o le catalytic gaioiga, o lea e avea ai le sili ona faaaoga catalyst, catalyst carrier ma le chromatography feaveai i le alamanuia vailaau ma suauu, ma faia se matafaioi taua i le suauu hydrocracking, hydrogenation faamamaina, hydrogenation toefuataiga, dehydrogenation tali ma le ta'avale fa'amama fa'amama fa'agasologa.Gamma-Al2O3 fa'aaogaina lautele e avea ma fa'aulu fa'aoso ona o le fetuutuunai o lona fausaga pore ma le acidity luga. A faʻaaogaina γ- Al2O3 e avea o se vaʻavaʻa, e le gata i lea e mafai ona i ai ni aʻafiaga e faʻasalalau ma faʻamautu vaega galue, e mafai foi ona tuʻuina atu le nofoaga tutotonu o le alkali, tali faʻatasi ma vaega galue catalytic. O le fausaga o pore ma mea i luga o le catalyst e faʻalagolago i le γ-Al2O3 carrier, o lea o le a maua ai le maualuga o le faʻatinoga mo le faʻaogaina o le catalytic e ala i le puleaina o meatotino o le gamma alumina carrier.Gamma activated alumina e masani lava ona faia i lona pseudo-boehmite muamua e ala i le 400 ~ 600 ℃ maualuga le vevela o le vevela, o lea o le maualuga o le physicochemical properties e tele lava ina fuafuaina e lona pseudo-boehmite muamua, ae e tele auala e fai ai pseudo-boehmite, ma punaoa eseese. o le pseudo-boehmite e tau atu i le eseesega o gamma - Al2O3. Ae ui i lea, i na catalysts ma manaoga faapitoa i alumina ave, na o le faalagolago i luga o le pulea o le pseudo-boehmite precursor e faigata ona ausia, e tatau ona ave e prophase sauniuniga ma le post faagasologa tuufaatasia auala e fetuunai ai meatotino o le alumina e ausia manaoga eseese. A maualuga atu le vevela nai lo le 1000 ℃ i le faʻaaogaina, alumina e tupu pe a maeʻa suiga vaega: γ→δ→θ→α-Al2O3, faatasi ai ma i latou γ、δ、θ o loʻo faʻapipiʻiina vavalalata, o le eseesega e na o le tufatufaina atu o ion alumini i totonu. tetrahedral ma octahedral, o lea la o nei suiga vaega e le mafua ai le tele o fesuiaiga o fausaga. O le okesene i le vaega o le alafa'i e fa'apipi'i fa'ama'i fa'afaono, o vaega fa'alumini oxide o se fa'atasiga ogaoga, fa'aitiitiga tele le vaega o luga.
Teuina:Aloese mai le susu, aloese mai le taʻavale, togi ma faʻateʻia mataʻutia i le taimi o felauaiga, e tatau ona saunia nofoaga e le timu.lE tatau ona teuina i totonu o faleteuoloa mago ma fa'avevela ina ia puipuia ai le fa'aleagaina po'o le susu.afifi:Ituaiga
taga palasitika
Pa'u
Pa'u
Super taga/Jumbo taga
Lopa
25kg/55lb
25 kilokalama/55 lb
150 kilokalama/330 lb
750kg/1650lb
900kg/1980lb
1000kg/2200 lb
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Fa'agaoioia fa'apolopolo alumina gel/Polo alumina maualuga/alpha alumina polo
Fa'agaoioia Spherical Shaped Alumina gel
mo tui ile Air dryerOle tele (g/1):690Tele Mesh: 98% 3-5mm (e aofia ai le 3-4mm 64% ma le 4-5mm 34%)O le vevela toe fa'afouina matou te fautuaina o le va o le 150 ma le 200 ℃Euiqlibrium gafatia mo vai vai e 21%Tulaga Su'ega
HG/T3927-2007
Mea Su'ega
Tulaga masani /SPEC
I'uga o Su'ega
Ituaiga
Olo
Olo
Al2O3(%)
≥92
92.1
LOI(%)
≤8.0
7.1
To'atele Tele(g / cm3)
≥0.68
0.69
PETA(m2/g)
≥380
410
Pore Volume(cm3/g)
≥0.40
0.41
Malosi Tu'i (N/G)
≥130
136
Suavai adsorption(%)
≥50
53.0
Ma'imau ile Attrition(%)
≤0.5
0.1
Fua Fa'atatau(%)
≥90
95.0