Hauv loj - nplai ammonia synthesis, roj refining thiab lwm yam kev tsim tshuaj lom neeg, dhau li ntawm organosulfur impurities, arsenides sawv cev rau lwm qhov teeb meem tseem ceeb uas ua rau muaj kev puas tsuaj rau chav ua haujlwm hauv hydrocarbon feedstocks. Arsenic hom thiab ntau yam kab mob organosulfur nyob rau hauv feedstock irreversibly puas active chaw ntawm downstream catalytic cov ntaub ntawv, uas ua rau mus tas li lom lom thiab deactivation ntawm catalysts. Cov pa hydrogenation catalysts tsuas tuaj yeem tuav cov tshuaj sulfur thiab tsis tshua muaj kev tshem tawm arsenic ib txhij. Kev tswj tsis zoo ntawm arsenic thiab sulfur hauv feedstock ua rau luv luv lub neej kev pab cuam ntawm cov catalysts tom ntej thiab nce chav tsev kaw zaus. Cov tuam txhab lag luam yuav tsum tau siv ntau cov txheej txheem tiv thaiv, ntxiv kev nqis peev peev thiab kev ua haujlwm - cov nqi tu rau cov haujlwm.
Integrated hydrodesulfurization-dearsenification technology muab txoj hauv kev zoo rau kev tshem tawm sulfur thiab arsenic impurities los ntawm cov khoom noj. Lub tshuab catalytic no hloov cov organosulfur tebchaw hauv cov khoom noj rau hauv hydrogen sulfide rau kev tshem tawm tom ntej, thaum ntxiab thiab immobilizing arsenic hom kom paub txog kev ua kom huv dual ntawm pub roj lossis roj pub. Txawm li cas los xij, tiag -cov khoom lag luam thoob ntiaj teb muaj cov khoom sib xyaw ua ke. Co-cov khoom uas twb muaj lawm xws li olefins, oxygen thiab cov organic nitrogen yooj yim yuav ua rau muaj kev cuam tshuam sab hauv hydrogenation, ua rau coke deposition ntawm catalyst nto thiab impairing tag nrho desulfurization thiab dearsenification kev ua tau zoo. Qhov no teev cov kev xav tau siab rau cov khoom siv catalyst.
Yuav kom ua tiav qhov ruaj khov dual - kev ua kom huv huv, cov catalysts yuav tsum muaj peev xwm ua tau ntau yam tshuaj tiv thaiv. Lawv yuav tsum ua kom pom qhov kev ua tau zoo hydroconversion rau organosulfur nrog rau cov arsenic zoo heev - muaj peev xwm nkag mus, thiab tiv thaiv kev cuam tshuam los ntawm kev pub noj - cov kab mob kis nrog rau olefins thiab cov nitrogen yooj yim. Lub caij no, cov qauv kev txhawb nqa catalyst plays lub luag haujlwm tseem ceeb. Zoo- tsim qauv pore architecture yuav tsum tau ua kom ntseeg tau tias muaj kev faib ua homogeneous ntawm cov khoom nquag. Cov khoom siv tshuab muaj qhov tseem ceeb sib npaug: lub zog pellet txaus thiab tus nqi qis qis yog tsim nyog los tiv thaiv compression thaum lub sij hawm reactor loading thiab yaig los ntawm cov txheej txheem roj ntws, ua kom ntev -lub sij hawm ua haujlwm tas mus li.
Kev lag luam tshuaj lom neeg thoob ntiaj teb tau ua pov thawj tsis tu ncua nruj specifications rau feedstock impurity tswj. Tsis yog tsuas yog nrhiav ib leeg xwb-Kev tshem tawm cov kab mob paug, cov lag luam tseem ceeb cov txheej txheem uas muaj peev xwm kho ntau yam tsis zoo hauv ib kauj ruam los ua kom yooj yim cov txheej txheem ntws thiab muaj peev txheej siv nrog rau cov nqi khiav lag luam. Hydrogenation catalysts nrog ua ke desulfurization thiab dearsenification zog tau dhau los ua ib qho kev xaiv tseem ceeb rau feedstock pretreatment nyob rau hauv loj -scale petrochemical nroj tsuag, tsim kom muaj kev ruaj ntseg ruaj ntseg ntawm downstream ntau lawm units.
Tsim los ntawmShandong Xunda TshuajKev lag luamGroup Co., Ltd., cov XH-3hydrodesulfurization-dearsenification catalystadopts spherical alumina kev them nyiaj yug loaded nrog npib tsib xee-molybdenum active Cheebtsam. Nws koom ua ke hydroconversion thiab arsenic- tshem tawm cov haujlwm, thiab muab kev kho mob txaus siab rau organosulfur tebchaw, olefins thiab cov organic nitrogen hauv cov khoom noj. Nws yog qhov zoo- haum rau pub- roj thiab pub- roj ua ntej ua haujlwm ua haujlwm nyob rau hauv loj - nplai ammonia synthesis nroj tsuag thiab refineries.