Desiccant
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Gamma firfircoon alumina/Gamma Alumina Catalyst Carriers/gamma alumina kuul
Shayga
Unug
Natiijada
Wajiga alumina
Gamma Alumina
Qaybinta Cabbirka Qaybaha
D50
μm
88.71
220μm
%
0.64
240μm
%
9.14
＞150μm
%
15.82
Halabuurka Kiimikada
Al2O3
%
99.0
SiO2
%
0.014
Na2O
%
0.007
Fe2O3
%
0.011
Waxqabadka Jirka
BET
m²/g
196.04
Pore Volume
Ml/g
0.388
Celceliska cabbirka daloolka
nm
7.92
Cufnaanta Bulk
g/ml
0.688
Alumina waxaa la ogaaday inay jiraan ugu yaraan 8 foom, waxay yihiin α- Al2O3, θ-Al2O3, γ- Al2O3, δ- Al2O3, η- Al2O3, χ- Al2O3, κ- Al2O3 iyo ρ- Al2O3, hantidooda qaab-dhismeedka macroscopic. sidoo kale way kala duwan yihiin. Gamma activated alumina waa kiristaalo cubic ah oo ku dhow, aan lagu milmi karin biyaha, laakiin ku milma aashitada iyo alkali. Gamma activated alumina waa taageerada acidic daciif ah, waxay leedahay dhibic dhalaalaysa sare 2050 ℃, alumina jel ee foomka hydrate waxaa lagu samayn karaa oksaydhka leh porosity sare iyo dusha sare gaar ah, waxay leedahay wejiyada kala guurka ee kala duwanaansho heerkulka ballaaran. Heerkulka sare, fuuq-baxa iyo fuuq-baxa awgeed, dusha sare ee Al2O3 wuxuu u muuqdaa isuduwidda ogsijiinta aan saturated (xarunta alkali) iyo aluminium (xarun acid), oo leh firfircooni firfircoon. Sidaa darteed, alumina waxaa loo isticmaali karaa sida side, kicinta iyo cocatalyst.Gamma fir-fircoon alumina waxay noqon kartaa budo, granules, strips ama kuwo kale. Waxaan sameyn karnaa sida looga baahan yahay.γ-Al2O3, waxaa loo yaqaan "alumina firfircoon", waa nooc ka mid ah qalabka adag ee kala firidhsan sare, sababtoo ah qaab-dhismeedka daloolka la hagaajin karo, aag gaar ah oo gaar ah, waxqabadka adsorption wanaagsan, dusha sare leh faa'iidooyinka aysidhka iyo xasilloonida kulaylka wanaagsan, dusha microporous oo leh sifooyinka lagama maarmaanka ah ee ficil catalytic, sidaas darteed noqdaan kicinta ugu ballaaran loo isticmaalo, side kiciye iyo side chromatography in warshadaha kiimikada iyo saliidda, iyo door muhiim ah in hydrocracking saliidda, hydrogenation sifaynta, hydrogenation dib u habaynta, falcelinta fuuq-baxa iyo habka nadiifinta qiiqa baabuurta.Gamma-Al2O3 waxaa si weyn loo isticmaalaa sida koriyaha kicinta sababtoo ah hagaajinta qaab dhismeedka daloolka iyo aysidhka dusha sare. Marka γ- Al2O3 loo isticmaalo sida side ah, ka sokow waxay yeelan karaan saamaynta si ay u kala firdhiso iyo xasilinta qaybaha firfircoon, sidoo kale waxay ku siin karaan xarunta firfircoon alkali acid, falcelinta synergistic la qaybaha firfircoon katalytic. Qaab dhismeedka daldaloolada iyo sifooyinka dusha sare ee kicinta waxay ku xiran yihiin sidaha γ-Al2O3, sidaa darteed side wax qabad sare waxaa laga heli karaa falcelin catalytic gaar ah iyadoo la xakameynayo sifooyinka side gamma alumina.Gamma activated alumina guud ahaan waxaa laga sameeyaa been abuur-boehmite iyada oo loo marayo 400 ~ 600 ℃ fuuqbaxa heerkulka sare, sidaas darteed sifooyinka physicochemical ee dusha sare waxaa lagu go'aamiyaa horudhac-boehmite, laakiin waxaa jira siyaabo badan oo loo sameeyo pseudo-boehmite, iyo ilo kala duwan. ee been abuurka-boehmite waxay keenaysaa kala duwanaanshaha gamma - Al2O3. Si kastaba ha ahaatee, kuwa kicinta shuruudaha gaarka ah si ay alumina side, kaliya ku tiirsan tahay kantaroolka precursor been abuur ah-boehmite waa adag tahay in la gaaro, waa in la qaado si ay prophase diyaarinta iyo post processing isku daraan habab si ay u hagaajiyaan sifooyinka alumina si ay u buuxiyaan shuruudaha kala duwan. Marka heerkulku ka sarreeyo 1000 ℃ isticmaalka, alumina waxay dhacdaa soo socota isbeddelka wajiga: γ→δ→θ→α-Al2O3, oo ay ku jiraan γ,δ, tetrahedral iyo octahedral, markaa isbeddelka wejigani ma keeno kala duwanaansho badan oo dhismayaasha ah. Iunyada ogsijiinta ee wejiga alfa waa xidhidh laba geesood ah, qaybaha aluminium oksaydhku waa dib u midoobid weyn, aag gaar ah oo dusha sare ah ayaa si weyn hoos ugu dhacay.
Kaydinta:Ka fogow qoyaanka, iska ilaali rogrogmada, tuurista iyo naxdinta fiiqan inta lagu jiro gaadiidka, tas-hiilaadka roobka celinaya waa in la diyaariyaa.Waa in lagu kaydiyaa bakhaar qallalan oo hawo leh si looga hortago wasakh ama qoyaan.Xidhmada:Nooca
Bac caag ah
Durbaan
Durbaan
Joonyad sare/Jumbo bac
Tuul
25kg/55lb
25 kg/55 lb
150 kg / 330 lb
750kg/1650lb
900kg/1980lb
1000kg/2200 rodol
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Alumina jel qaabaysan oo wareegsan oo firfircoon/waxqabad sare leh kubbadda alumina/ kubbadda alfa alumina
Gel Alumina ah oo qaabeysan oo wareegsan
duritaanka qalajiyaha hawadaCufnaanta badan (g/1):690Cabbirka mesh: 98% 3-5mm (oo ay ku jiraan 3-4mm 64% iyo 4-5mm 34%)Heerkulka dib-u-soo-nooleynta ee aan ku talineyno waa inta u dhaxaysa 150 iyo 200 ℃Awoodda Euiqlibrium ee uumiga biyaha waa 21%Heerka Imtixaanka
HG/T3927-2007
Shayga Tijaabada
Heerka /SPEC
Natiijada Imtixaanka
Nooca
Kuul
Kuul
Al2O3(%)
≥92
92.1
LOI(%)
≤8.0
7.1
Cufnaanta Bulk(g/cm3)
≥0.68
0.69
BET(m2/g)
≥380
410
Pore Volume(cm3/g)
≥0.40
0.41
Xoog burburin (N/G)
≥130
136
Biyo-qaadista(%)
≥50
53.0
Khasaare ku Yimaada(%)
≤0.5
0.1
Cabbirka U Qalma(%)
≥90
95.0
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Alumina Adsorbent ee firfircoon ee loogu talagalay Hydrogen Peroxide
Alaabtu waa shay cad oo wareegsan, oo leh hanti aan sun ahayn, ur lahayn, aan lagu milmi karin biyaha iyo ethanol. Xajmiga qaybku waa lebbis, dusha sare waa siman yahay, xoogga farsamadu waa sarreeyaa, awoodda nuugista qoyaanku waa mid xooggan oo kubbaddu ma kala qaybsana ka dib marka la nuugo biyaha.
Alumina loogu talagalay hydrogen peroxide waxay leedahay kanaalo badan oo xididada leh iyo dhul ballaaran oo dusha sare ah, kuwaas oo loo isticmaali karo adsorbent, qallajiye iyo kicinta. Isla mar ahaantaana, waxaa sidoo kale lagu go'aamiyaa iyadoo loo eegayo polarity ee walaxda la isku dhejiyay. Waxay leedahay xidhiidh adag oo loogu talagalay biyaha, oxides, acetic acid, alkali, iwm.
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Alumina firfircoon ee Daawaynta Biyaha
Alaabtu waa shay cad oo wareegsan, oo leh hanti aan sun ahayn, ur lahayn, aan lagu milmi karin biyaha iyo ethanol. Xajmiga qaybku waa lebbis, dusha sare waa siman yahay, xoogga farsamada waa sarreeyaa, awoodda nuugista qoyaanku waa mid xooggan oo kubbaddu ma kala qaybsanto ka dib marka la nuugo biyaha.
Cabbirka qayb ahaan wuxuu noqon karaa 1-3mm,2-4mm/3-5mm ama xitaa ka yar sida 0.5-1.0mm.Waxay leedahay aag xiriir oo ka weyn biyaha iyo meel gaar ah oo ka sarreysa 300m²/g, waxay leedahay tiro badan oo ah microspores waxayna xaqiijin kartaa adsorption xooggan iyo mugga defluorination sare ee fluorinion ee biyaha.
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Kubbada alumina ee firfircoon/Wakiilka daawaynta biyaha
Alaabtu waa shay cad oo wareegsan, oo leh hanti aan sun ahayn, ur lahayn, aan lagu milmi karin biyaha iyo ethanol. Xajmiga qaybku waa lebbis, dusha sare waa siman yahay, xoogga farsamada waa sarreeyaa, awoodda nuugista qoyaanku waa mid xooggan oo kubbaddu ma kala qaybsanto ka dib marka la nuugo biyaha.
