Lub tshuab nqus tsev roj (VGO) thiab cov roj av hnyav nrog cov ntsiab lus siab nitrogen tuaj yeem cuam tshuam cov chaw ua haujlwm ntawm cov dej ntws qis catalytic cracking catalysts thiab txwv tsis pub refinery ua haujlwm yooj. Ib qho tshwj xeeb hydrodenitrogenation catalyst tshem tawm cov organic nitrogen thiab sulfur compounds los ntawm hnyav pub ua ntej catalytic cracking.
Kev xaiv catalyst yog txiav txim siab raws li cov khoom noj muaj pes tsawg leeg, qib nitrogen, cov ntsiab lus sulfur, kev ua haujlwm ntawm lub reactor, muaj hydrogen, thiab lub hom phiaj cov khoom specification.
Technical Parameters thiab Hom Khoom
|
Yam khoom |
Lub npe Parameter |
Hom Ntau Yam / Specification |
Kev xeem Standard / Method |
|
Tshuaj |
Active Hlau System |
NiMo / CoMo |
ASTM / ISO |
|
Moob 3 Content |
Customized pub hnyav |
XRF |
|
|
NiO or CoO Content |
Customized pub hnyav |
XRF |
|
|
Lub cev |
Cov duab |
Trilobe / Quadrulobe / Lub tog raj kheej |
Pom kev |
|
Loj |
1.2mm txog 1.8mm |
ASTM D 2051 Cov Lus Qhia Tshwj Xeeb |
|
|
Kev ceev ceev |
0.65 g / cm3 rau 0.85 g / cm3 |
ASTM D 4164 1 |
|
|
Qhov chaw saum npoo |
180 m2 / g rau 280 m2 / g |
ASTM D 3663 Cov khoom lag luam |
|
|
Pore Volume |
0.40 cm3 / g rau 0.60 cm3 / g |
ASTM D 4284 1 |
|
|
Neeg kho tshuab |
Sab Crush Strength |
>= 120 N/cm |
ASTM D 6175 Cov Lus Qhia Tshwj Xeeb |
|
Kev poob qis |
<= 0.5 wt% |
ASTM D 4058 Cov khoom siv raw khoom |
|
|
Kev ua tau zoo |
HDN Kev Ua Haujlwm |
Optimized rau yooj yim tshem tawm nitrogen |
Pilot Plant Test |
Cov ntawv thov tseem ceeb & Lub Hom Phiaj Feedstocks
Qhov no catalyst yog engineered rau ruaj - txaj hydrotreating thiab pretreatment units positioned upstream ntawm cov kua catalytic cracking (FCC) units. Lub luag haujlwm tseem ceeb yog los hloov cov khoom siv hluav taws xob refractory organic nitrogen thiab sulfur compounds rau hauv cov ntaub ntawv uas tuaj yeem sib cais hauv cov dej ntws qis, yog li txo qis cov khoom paug nkag mus rau hauv lub reactor tawg.
Hom Feedstocks Txheej txheem:
Lub tshuab nqus tsev roj (VGO)
Heavy Gas Roj (HCGO)
Coker gas roj thiab visbreaker roj roj
Blended hnyav roj av feem nrog siab nitrogen thiab sulfur ntau ntau
Raws li kev teeb tsa ntawm hydrotreater, cov txheej txheem kuj tseem tsom rau ib txhij hydrodesulfurization (HDS), aromatic saturation, thiab tshem tawm ib feem ntawm cov kab hlau xws li nickel thiab vanadium.
Catalyst Chemistry thiab Formulations
Hydrorefining catalysts rau hnyav pub pretreatment siv kev hloov pauv -hlau sulfide active theem faib thoob plaws siab -purity ntxeem tau oxidic txhawb.
Common Formulations:
NiMo / Alumina:Xaiv tau thaum muaj kev ua haujlwm siab hydrodenitrogenation thiab hydrogenation, tshwj xeeb tshaj yog nyob rau hauv nruab nrab - mus rau - kev ua haujlwm siab.
CoMo / Alumina:Siv qhov twg hydrodesulfurization yog thawj lub hom phiaj ua haujlwm thiab kev tshem tawm sulfur dominates cov tshuaj tiv thaiv kinetics.
Hloov kho Alumina Txhawb:Engineered nrog tailored pore loj distributions rau cov txheej txheem hnyav molecules nrog minimized diffusion kuj.
Qhov kawg formulation yog matched rau lub reactor siab, hydrogen ib feem siab, kua teev qhov chaw tshaj tawm (LHSV), thiab lub hom phiaj cov khoom nitrogen theem.
Manufacturing thiab Quality Control
Kev ua tau zoo ib yam hauv kev lag luam reactors cia siab rau kev tswj xyuas meej ntawm kev txhawb nqa synthesis, pore faib, nquag hlau impregnation, calcination, thiab kev tsim cov txheej txheem.
Manufacturing Controls:
Saib xyuas los ntawm kev faib tswj cov tshuab (DCS) hla cov kab ntau lawm.
Kev kuaj lub cev thiab tshuaj lom neeg suav nrog kev tsom xam thaj tsam ntawm thaj chaw, mercury intrusion porosimetry, thiab ntsuas lub zog txhua yam.
Batch-los ntawm-batch soj ntsuam tsis tau txiav txim siab raws li kev pom zoo specifications.
Catalyst Loading and Handling Guidelines
Kev tuav ntawm qhov chaw thiab cov reactor loading ncaj qha cuam tshuam rau kev lag luam chav ua haujlwm, tswj kev poob siab, thiab lub neej catalyst.
Loading Method:Kev thauj khoom hnyav lossis thom khwm thauj khoom raug pom zoo nyob ntawm lub reactor txoj kab uas hla thiab kev teeb tsa sab hauv kom ntseeg tau tias lub txaj tsis muaj qhov seem thiab tiv thaiv kev sib kis.
Presulfiding Requirements:Lub catalyst yuav tsum tau ua kom muaj zog / presulfiding (hauv -situ lossis ex-situ) ua ntej roj- los hloov cov hlau oxides rau hauv cov hlau sulfide theem. Cov lus qhia ntxaws ntxaws tau muab rau thaum pom zoo txog qhov project.
Ntim, Cia, thiab Txee Lub neej
Ntim Cov Kev Xaiv:Cov nruas hlau kaw los yog hloov tau yooj yim nruab nrab ntawm cov thawv ntim khoom (FIBC / bulk hnab) nruab nrog cov dej noo- cov kab thaiv kev tiv thaiv kom tsis txhob muaj dej thiab oxidation thaum hla dej hiav txwv.
Kev cia khoom:Khaws rau hauv qhuav, zoo- tso cua nkag hauv tsev rau khoom kom deb ntawm cov dej noo ncaj qha, corrosive chemicals, thiab kub hloov pauv.
Cov lus nug nquag
Q: Yuav ua li cas lub catalyst tswj kev hloov pauv sai sai, xws li kev nce siab hauv nitrogen lossis cov hlau hnyav?
A: Cov chaw lag luam ua haujlwm hloov pauv cov slates feem ntau ntsib kev hloov pauv hauv VGO nitrogen thiab cov ntsiab lus hlau. Catalyst formulations yog tsim los nrog kev ruaj khov ruaj khov thiab optimized pore cov qauv kom haum rau qhov kev ncua sij hawm nce hauv cov khoom paug tsis muaj kev cuam tshuam tam sim. Txawm li cas los xij, kev ua haujlwm ntev ntev ntawm kev tsim qauv hnyav tuaj yeem xav tau kev hloov kho me me hauv reactor kub lossis dhau los tswj cov khoom lag luam qib nitrogen.
Q: Lub voj voog ntev npaum li cas ua ntej yuav tsim kho lossis hloov pauv?
A: Catalyst lub voj voog ntev nyob ntawm ob peb chav tsev- cov hloov pauv tshwj xeeb, suav nrog qib pib pub khoom noj tsis zoo, lub tshuab hluav taws xob ua haujlwm siab, qhov ntim catalyst, thiab kev ua haujlwm hnyav. Raws li tus qauv tsim qauv, niaj hnub hydrotreating catalyst systems yog engineered rau ntau - xyoo kev ua haujlwm. Cov kev khiav tshwj xeeb- qhov ntev ntawm qhov projections raug xam thaum lub sij hawm ntsuam xyuas cov txheej txheem raws li cov neeg siv cov ntaub ntawv khiav hauj lwm.
Q: Puas yog qhov catalyst muab rau hauv daim ntawv oxide, thiab cov kev xaiv rau presulfiding yog dab tsi?
A: Cov catalyst feem ntau yog muab rau hauv cov hlau ruaj khov - oxide daim ntawv. Nws yuav tsum tau hloov dua siab tshiab rau hauv active hlau sulfide theem ua ntej hydrocarbon ua. Ob leeg nyob rau hauv -situ sulfiding siv leej faj-spiked pub lossis roj-theem spiking thiab ex-situ presulfided kev xaiv tuaj yeem haum raws li nyob ntawm lub sijhawm ua haujlwm ntawm lub tshuab ua kom zoo thiab cov txheej txheem ua haujlwm hauv chav tsev.
Q: Cov catalyst no puas tuaj yeem rov tsim dua ex-situ, thiab nws puas khaws cov haujlwm tom qab rov tsim dua tshiab?
A: Yog. Thaum cov kev ua haujlwm poob qis vim coke deposition thiab hlau tsub zuj zuj nyob rau hauv ib tug multi- xyoo voj voog, cov catalyst siv yuav tsum tau unloaded thiab xa mus rau tswj ex-situ regeneration. Regenerated catalysts feem ntau rov qab tau ib feem tseem ceeb ntawm lawv qhov chaw saum npoo av thiab kev ua haujlwm hydrogenation, raws li kev tswj hwm ntawm ntau qib nickel thiab vanadium.
Cim npe nrov: fcc pub hydrodenitrogenation catalyst, Tuam Tshoj fcc feed hydrodenitrogenation catalyst manufacturers, lwm tus neeg, Hoobkas
