Imikhiqizo

Ikhaya Imikhiqizo I-Honeycomb Ceramic Catalyst Imininingwane

Izinyosi Ceramic Substrate

Thumela ukuPhenya

Izici

I-Synthetic cordierite i-magnesium-i-alumino{1}}impahla ye-silicate ceramic, cishe wonke ama-substrate catalyst e-ceramic anamuhla enziwe nge-cordierite.
Ama-substrate e-honeHoneycomb mic catalyst substrate akhiqizwa ngenqubo yokukhishwa, izinto ezingavuthiwe ezifana ne-alumina, i-talc, ubumba (i-kaolinite), ne-silica zincishiswa zibe yimpushana bese zihlanganiswa zibe unamathisela{0}osuselwe emanzini. Izithasiselo ezingase zengezwe ohlelweni zihlanganisa izinto zokuthambisa (isb. i-ethylene glycol), ama-bonding agents (isb. i-methylcellulose), kanye nama-fluxes (ama-alkaline hydroxides). Ama-extrusions enziwe ngokunamathisela ayomiswa, anqunywe ubude, futhi abalwe emazingeni okushisa angaphezu kuka-1400 degree.

Izithombe ze-Ceramic honeycomb substrate

product-644-102

Ama-substrates e-ceramic yekhekheba lezinyosi asetshenziswa kuziguquli ze-catalytic ngokuvamile zenziwa ngohlobo olukhethekile lwe-ceramic material eyaziwa ngokuthi 'i-cordierite'. I-liquid cordierite ikhishwa ngesikhunta bese iyashiswa ukuze yome futhi ibe nzima. Ngokusebenzisa isikhunta esihlukene, ama-substrates osayizi abahlukahlukene angakhishwa futhi nosayizi wamashaneli (noma amaseli) nawo angahluka. Ngenxa yokuthi ithuluzi liyadingeka, amakhekheba oju e-ceramic afaneleka kakhulu ezidingweni zevolumu ephakathi noma enkulu ngaphandle uma usayizi ojwayelekile ungasetshenziswa. Ama-honeycombs e-Ceramic ngokuvamile ayinketho yokonga kakhulu ezintweni ezisetshenziswayo ezifana nezitofu ze-biomass kanye nama-oven ozihlanzayo{4}}e-pyrolytic.
Usayizi wamaseli uwukhiye ohlukile onikela ekusebenzeni kwesiguquli se-catalytic. Nokho, esikhundleni sokubhekisela ngokuqondile kusayizi wamaseli, kuvamile ukulinganisa ukuthi mangaki iyunithi ngayinye yendawo, isibonelo amaseli ngeyintshi yesikwele (cpsi) noma amaseli ngesentimitha lesikwele.
Ama-substrates ashintsha kancane ubukhulu bawo ngesikhathi sokubala, izingxenye zosayizi omncane zingenziwa-ngenqubo yesinyathelo esisodwa ngokubikezela lolo shintsho nokwelula izingxenye zibe izilinganiso ezihluke kancane kulokho okucacisiwe komkhiqizo oqediwe, izingxenye ezinkulu zobubanzi, ngakolunye uhlangothi, zingadinga{1}}inqubo yokukhiqiza yezinyathelo eziningi, ama-substrate akhushulwa futhi ancishiswe emazingeni akhethekile, alandelwe ukucutshungulwa kuya kubukhulu obuthile. zisikwa zifinyelele ubude bokugcina, amakhonsathi azo enziwa ngomshini, isikhumba sangaphandle sisetshenziswa kusetshenziswa i-ceramic paste, kanti izingxenye ziyomiswa kuhhavini{2}.
Ama-monoliths e-Ceramic honeycomb atholakalayo: unxande, isilinda noma i-ellipse, umumo weseli ngesikwele, indilinga, i-hexagonal, unxantathu njll. singakwazi futhi ukwenza ngokwezifiso ukukhiqizwa ngokusekelwe kumdwebo wakho namasampuli, ikhekheba lezinyosi le-ceramic elinobuningi besakhiwo seseli kusuka ku-10 kuya ku-300cpsi/400cpsic amaseli square (CPSIc amaseli angu-600).
I-Ceramic Honeycomb Substrate esetshenziswa kuziguquli ze-catalytic ine-coefficient yokunweba okushisayo ephansi kakhulu, indawo ecacile ephezulu, ukwehla kokucindezela okuphansi, ukukhanya okusheshayo{0}okuvala kanye nezakhiwo ezihlukile. Izinkulungwane zamangqamuzana zinikeza indawo ephezulu yezisusa zensimbi eyigugu eziguqula ukungcola okuyingozi kube umhwamuko wamanzi, i-carbon dioxide nokunye, izitsha zobumba zoju lwezinyosi zivimba izimo ezitholakalayo: unxande, isilinda noma i-ellipse. Izimo zeseli ngesikwele, indilinga, i-hexagonal, unxantathu njll.
I-Catalyst substrate iyingxenye ebalulekile ethonya ukusebenza, ukuqina, nokuqina kwesistimu yokuguqula i-catalytic, i-ceramic honeycomb substrate esetshenziswa kuziguquleli ze-catalytic zine-coefficient yokunweba okushisayo okuphansi kakhulu, indawo ethile ephezulu, ukwehla komfutho ophansi, ukukhanya okusheshayo{0}}kanye nezakhiwo eziyingqayizivele, izinkulungwane zamangqamuzana anikeza indawo yokukhipha umhwamuko ephezulu i-carbon dioxide nokunye, okuhlosiwe kwemiklamo ye-ceramic catalyst substrates ihlanganisa okulandelayo:

Indawo ephezulu yejometri (GSA),
Indawo enkulu yangaphambili evulekile (OFA),
I-thermal mass ephansi namandla okushisa,
Izinga lokushisa eliphezulu lokusebenzisa,
I-coefficient ephansi yokwanda kwe-thermal,
Ukuhambisana ne-coating,
Amandla,
Ukumelana ne-oxidation.

Isitifiketi Sekhwalithi Yekhekheba lezinyosi se-ceramic Substrate

Igama lomkhiqizo: I-Porous Ceramic Substratre(monolith)

Izakhiwo Zekhemikhali:

Tizinto zokuhlobisa	Iyunithi yokulinganisa	Sinani elijwayelekile	Inani elilinganiselwe	Rizimpawu
SiO₂	%	50.0±1.8	50.47	Kulungile
AL₂O₃	%	35.1±1.6	34.80	Kulungile
MgO	%	13.5±0.5	13.17	Kulungile
I-CaO	%	<1.0	0.75	Kulungile
K₂O+ Na₂O	%	<0.5	0.16	Kulungile
Fe₂O3	%	<1.0	0.36	Kulungile
I-TiO₂	%	<1.0	0.14	Kulungile
I-Crystallization	%	>90
Ukulahleka Kokuthungela	%	0.12

Igama lomkhiqizo: I-Porous Ceramic Substratre(monolith)

Izakhiwo Zomzimba:

Tizinto zokuhlobisa	Iyunithi yokulinganisa	Sinani elijwayelekile	Inani elilinganiselwe	Rizimpawu
Amandla acindezelayo (Isiqondiso se-axis)	Mpa	»15.0	21.3	Kulungile
Amandla acindezelayo (isiqondiso se-axis B)	Mpa	»2.0	6.90	Kulungile
Amandla acindezelayo (i-C axis direction)	Mpa	»0.15	0.3	Kulungile
Ukumuncwa kwamanzi	%	24±4	25.57	Kulungile
I-coefficient yokwandisa ukushisa (igumbi lokushisa ~ 800 degree)	iziqu^-1	«1.5×10^-6	1.0×10^-6	Kulungile
Ukuminyana ngobuningi	g/cm³	«0.50	0.48	Kulungile
Izinga lokushisa elithambile	iziqu	»1360	1410	Kulungile
I-porosity esobala	%	45.55		kulungile
Ukumelana nokushaqeka okushisayo	>550 degree