FCC pub hydrotreating catalysts yog tsau - txaj hydroprocessing cov ntaub ntawv ntsia saum cov dej catalytic cracking units. Lawv txo cov sulfur, nitrogen, hnyav hlau, thiab Conradson carbon nyob rau hauv hnyav distillates, npaj cov feedstock kom tau raws li nram qab no cracking yuav tsum tau thaum tiv thaiv lub FCC chav tsev los ntawm ceev catalyst lom.
Muaj hydrotreating catalysts yog tsim rau refinery daim ntaub ntawv. Kev xaiv catalyst nyob ncaj qha rau cov khoom noj khoom haus, cov kab mob tsis huv, muaj hydrogen ib nrab siab, reactor geometry, thiab lub hom phiaj ntev.
Technical Specifications thiab Parameters
|
Parameter Khoom |
Hom Specification Range |
|
Zoo thiab Geometry |
Trilobe, Quadralobe, lossis Cylindrical Extrudates (1.2 hli txog 2.0 hli) |
|
Active Hlau |
Cobalt-Molybdenum lossis Nickel-Molybdenum ntawm Alumina |
|
Qhov chaw tshwj xeeb |
150 mus rau 250 square meters ib gram |
|
Total Pore Volume |
0.45 txog 0.75 cubic centimeters ib gram |
|
Sab Crush Strength |
Ntau dua lossis sib npaug li 120 txog 180 Newtons ib centimeter (nyob ntawm seb qhov loj me thiab cov duab) |
|
Kev ceev ceev |
0.65-0.85 grams ib cubic centimeter |
|
Kev poob qis |
Tsawg dua 0.5 qhov hnyav feem pua |
Cov khoom siv
VGO Hydrotreating:Txhim kho lub tshuab nqus tsev roj txau los ntawm kev tshem tawm cov sulfur, nitrogen, thiab cov tshuaj tsw qab los tsim cov khoom noj kom huv rau catalytic cracking.
Residue / Heavy Feedstock Pretreatment:Kho cov huab cua thiab lub tshuab nqus tsev kom txo tau Conradson carbon residue (CCR) thiab cov hlau hnyav ua ntej kev hloov pauv qis.
FCC Feedstock Kev Txhim Kho Zoo:Txhim kho hydrogen-rau- cov pa roj carbon piv thiab tag nrho cov khoom noj zoo kom ua kom cov roj av thiab cov roj av tau zoo tshaj plaws thaum txo qis kev tsim coke hauv lub ntsiab FCC.
Multi-Functional Catalyst Bed Configuration
Kev ua cov khoom hnyav FCC feem ntau xav tau cov txheej txheem catalyst nyob rau hauv lub reactor los tswj kev sib tw cov tshuaj tiv thaiv kinetics:
Guard / Demetallization Zone:Muab tso rau ntawm qhov nkag los tswj cov hlau siab ntau thiab cov cuab yeej cuab tam, tiv thaiv ntxov ntxov plugging ntawm lub txaj nquag.
Main Hydrotreating Zone:Muab lub hom phiaj hydrodesulfurization thiab hydrodenitrogenation nyob rau hauv tej reactor kub thiab qhov chaw tshaj tawm tsis.
Polishing Zone:Xyuas kom meej qhov kawg effluent specifications rau leej faj thiab nitrogen tau raws li niaj zaus ua ntej pub nkag mus rau hauv chav tsev tawg.
Cov xwm txheej ua haujlwm cuam tshuam rau kev ua haujlwm
Catalyst kev ua tau zoo yog ncaj qha tswj hwm los ntawm chav tsev lub hnab ntawv ua haujlwm. Cov kev hloov pauv tseem ceeb uas tau tshuaj xyuas thaum lub sij hawm ntsuam xyuas kev muaj xws li:
Reactor weighted nruab nrab txaj kub (WABT)
Hydrogen ib nrab siab thiab purity
Liquid hourly space velocity (LHSV)
Hydrogen-rau- roj piv
Reactor siab poob tsub zuj zuj ntawm lub sijhawm
Catalyst Loading thiab Activation Guidelines
Txhawm rau kom ntseeg tau tias kev ua haujlwm zoo tshaj plaws hauv kev lag luam, yuav tsum tuav kom zoo thaum lub sijhawm teeb tsa thiab pib ua haujlwm. Technical Support npog:
Cov txheej txheem thauj khoom
Cov lus pom zoo rau kev thauj khoom hnyav lossis thom khwm los tiv thaiv kev sib kis thiab txo qis qis qis qis qis.
Sulfiding raws tu qauv
Cov lus qhia rau hauv -situ lossis ex-situ presulfiding los hloov cov hlau oxides rau hauv cov hlau sulfide theem.
Startup thiab Commissioning
Qhov ntsuas kub ntawm qhov ntsuas kub thiab cov kua dej qhia cov lus qhia ua ntu zus tsim los ua kom ruaj khov ntawm cov reactor ua haujlwm zoo.
Kev Tswj Xyuas Kev Tswj Xyuas Zoo thiab Cov Qauv Tsim Khoom
Batch-rau-batch sib xws yog qhov tseem ceeb rau kev tswj xyuas cov reactor ruaj khov yam tsis muaj qhov kub thiab txias excursions lossis poob haujlwm sai. Manufacturing zoo tswj cov txheej txheem muaj xws li:
Raw Material Verification:Cov khoom siv tshuaj tuaj yeem raug kuaj tawm tsam cov qauv purity nruj ua ntej tso tawm batch.
Kev them nyiaj yug Synthesis:Tswj los nag thiab hydrothermal kev kho mob kom ntseeg tau tias cov pore architecture thiab mechanical robustness.
Impregnation & ziab:Precise deposition ntawm active hlau theem kom optimize dispersion thiab active site muaj.
Calcination:Kev tswj cov txheej txheem thermal los txhim kho cov khoom siv hluav taws xob thiab tshem tawm cov residues volatile.
Kev tshuaj xyuas cov khoom tiav:Final testing verifying particle dimensions, bulk density, crush strength, and chemical composition prior to export packaging.
Cov txheej txheem ntim thiab khaws cia
Ntim Cov Kev Xaiv:Muaj nyob rau hauv cov nruas hlau nrog cov yas yas sab hauv, hloov pauv nruab nrab ntawm cov thawv ntim khoom (FIBC / supersacks), lossis tshwj xeeb ntom ntom- cov thawv ntim khoom tsim los tiv thaiv cov catalyst los ntawm ya raws thiab lub cev puas tsuaj thaum caij tsheb npav.
Kev tiv thaiv dej noo:Lub catalyst yuav tsum tau muab ntim rau hauv nws qhov qub, ntim airtight kom txog thaum tam sim ntawd ua ntej reactor loading los tiv thaiv atmospheric noo noo adsorption, uas tuaj yeem cuam tshuam rau txhua yam muaj zog thiab kev ua haujlwm.
Cia ib puag ncig:Khaws cov pallets hauv qhov chaw huv, qhuav, thiab zoo -ventilated sab hauv tsev warehouse. Tsis txhob raug los nag, huab cua huab cua, tshav ntuj ncaj qha, thiab cov tshuaj corrosive vapors.
Stacking txwv:Txhawm rau tiv thaiv kev sib tsoo lossis ua rau cov thawv ntim qis, tsis txhob ntim cov nruas lossis cov khoom siv supersacks tshaj li qhov kev pom zoo siab tshaj plaws uas tau teev tseg rau ntawm daim ntawv lo.
Kev Tiv Thaiv Kev Tiv Thaiv:Siv cov cuab yeej nqa khoom tsim nyog (xws li forklifts nrog cov hlua khi los yog cov ntaub ntawv pov thawj hoisting rau supersacks) kom tsis txhob poob los yog ua rau lub ntim ntim thaum lub sij hawm warehouse txav thiab qhov chaw offloading.
FAQ
Q: Dab tsi yog lub neej ntev ntawm FCC pub hydrotreating catalyst?
A: Catalyst lub neej feem ntau nyob ntawm 2 mus rau 4 xyoos, nyob ntawm qhov hnyav ntawm cov khoom noj, cov kab mob tsis huv (nickel, vanadium, thiab sulfur), kev ua haujlwm hnyav, thiab kev rov tsim dua tshiab.
Q: Cov catalysts puas tuaj yeem rov tsim dua tom qab deactivation vim coke thiab hlau deposition?
A: Yog lawm, ntau cov qauv kev lag luam txhawb nqa ex-situ regeneration kom hlawv tawm cov coke thiab xaiv rov qab ua haujlwm ntawm thaj chaw, txawm tias cov hlau zoo li vanadium ua rau kev ua haujlwm tas mus li ntau lub voj voog.
Q: Yuav ua li cas feedstock hnyav hlau cov ntsiab lus cuam tshuam reactor siab poob?
A: Cov qib siab ntawm nickel thiab vanadium ua rau hlau sulfide deposition nyob rau sab nrauv ntawm cov catalyst pores, ua rau lub qhov ncauj qhov ncauj plugging, ntws maldistribution, thiab maj mam nce nyob rau hauv reactor siab poob lub sij hawm.
Q: Qhov txawv ntawm -situ thiab ex-situ presulfiding yog dab tsi?
A: Ex-situ presulfiding yuav ua kom cov catalyst ntawm cov chaw tsim khoom lossis chaw tshwj xeeb ua ntej thauj khoom, thaum nyob rau hauv -situ presulfiding siv sulfur-spiked feed lossis gas-theem spiking ncaj qha rau hauv lub reactor reactor thaum pib.
Cim npe nrov: fcc pub hydrotreating catalyst, Tuam Tshoj fcc feed hydrotreating catalyst manufacturers, lwm tus neeg, Hoobkas
