Catalytic dewaxingyog txheej txheem tseem ceeb hauv kev lag luam roj av uas tshem tawm cov waxy tebchaw los ntawm cov roj crude. Cov txheej txheem no yog qhov tseem ceeb hauv kev ua kom ntseeg tau tias cov khoom siv roj av xws li diesel, roj av, thiab dav hlau roj muaj qhov xav tau qhov kub thiab txias. Hauv tsab xov xwm no, peb yuav tham txog dab tsi catalytic dewaxing yog, nws ua haujlwm li cas, thiab nws qhov tseem ceeb hauv kev lag luam roj av.

Catalytic Dewaxing yog dab tsi?

Catalytic dewaxing yog cov txheej txheem ua kom zoo dua qub uas tshem tawm cov khoom siv waxy, xws li paraffins, los ntawm cov roj crude. Cov waxy tebchaw no yog lub luag haujlwm rau kev ua kom muaj zog ntawm cov khoom siv roj av ntawm qhov kub thiab txias, uas tuaj yeem ua rau muaj teeb meem loj rau kev ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv huab cua txias. Cov txheej txheem siv cov catalyst los hloov cov waxy tebchaw rau hauv cov kua hydrocarbons, txhim kho cov khoom kub ntawm cov khoom siv roj av.

Catalytic Dewaxing ua haujlwm li cas?

Catalytic dewaxingFeem ntau suav nrog ob kauj ruam: hydrocracking thiab isomerization. Hydrocracking rhuav tshem cov saw ntev ntev waxy tebchaw rau hauv me me molecules, thaum isomerization rearranges cov molecules los tsim ntau yam xav tau branched-chain hydrocarbons. Cov ceg ntoo-hloov hydrocarbons no muaj cov ntsiab lus qis dua li cov saw hlau ncaj qha hydrocarbons, txhim kho cov khoom qis ntawm cov khoom siv roj av.

Cov txheej txheem yuav siv sij hawm qhov chaw nyob rau hauv lub reactor hlab ntsha, qhov twg cov roj crude yog tov nrog hydrogen gas thiab catalyst. Qhov sib tov yog rhuab mus rau qhov kub thiab txias, thiab cov waxy compounds yog hloov mus rau hauv cov kua hydrocarbons. Cov kua hydrocarbons ces muab cais tawm ntawm cov catalyst thiab tej yam khoom uas tsis muaj kev cuam tshuam thiab xa mus rau cov txheej txheem refining ntxiv.

Vim li cas Catalytic Dewaxing tseem ceeb?

Catalytic dewaxing yog qhov tseem ceeb hauv kev ua kom ntseeg tau tias cov khoom siv roj av muaj qhov xav tau qhov kub thiab txias. Piv txwv li, cov roj diesel yuav tsum nyob twj ywm ntawm qhov kub thiab txias kom ntseeg tau tias nws tuaj yeem nqus tau thiab kub hnyiab tau zoo hauv huab cua txias. Yog tias cov roj diesel solidifies, nws tuaj yeem txhaws cov kab roj, cov lim dej, thiab cov twj tso kua mis, ua rau muaj teeb meem loj. Ib yam li ntawd, cov roj dav hlau yuav tsum nyob twj ywm kua ntawm qhov kub thiab txias kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov dav hlau hauv huab cua txias.

Catalytic dewaxing kuj txhim kho tag nrho cov khoom zoo ntawm cov roj av. Los ntawm kev hloov cov waxy tebchaw rau hauv cov hydrocarbons uas xav tau ntau dua, cov txheej txheem tuaj yeem txhim kho tus lej cetane ntawm cov roj diesel thiab cov roj av octane, ua rau lawv hlawv ntau huv si thiab ua haujlwm zoo.

Ntxiv rau nws qhov tseem ceeb hauv kev lag luam roj av, catalytic dewaxing kuj muaj txiaj ntsig zoo ib puag ncig. Los ntawm kev txhim kho cov khoom siv roj av zoo, cov txheej txheem tuaj yeem txo qis emissions thiab txhim kho huab cua zoo. Cov hluav taws kub hnyiab nrog ntau dua cetane thiab octane tooj tuaj yeem txo cov pa phem xws li nitrogen oxides (NOx) thiab cov teeb meem me me, ua rau muaj kev noj qab haus huv ib puag ncig.

Kev siv ntawmcatalytic dewaxingtau dhau los ua qhov nthuav dav hauv kev lag luam roj av vim qhov kev xav tau loj zuj zus ntxiv rau cov khoom siv hluav taws xob zoo, qis qis. Cov txheej txheem yog hloov zuj zus mus, nrog rau kev nce qib hauv catalyst technology thiab txheej txheem tsim kev txhim kho nws cov kev ua tau zoo thiab kev ua tau zoo.

Hauv kev xaus, catalytic dewaxing yog cov txheej txheem tseem ceeb hauv kev lag luam roj av uas tshem tawm cov khoom siv roj av los ntawm cov roj crude los txhim kho cov khoom kub qis thiab tag nrho cov khoom siv roj av zoo. Cov txheej txheem cuam tshuam nrog hydrocracking thiab isomerization thiab siv lub catalyst los hloov cov waxy compounds rau hauv cov kua hydrocarbons. Catalytic dewaxing yog qhov tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov khoom siv roj av hauv cov huab cua txias, txhim kho huab cua zoo, thiab ua tau raws li qhov xav tau loj hlob rau cov khoom siv hluav taws xob zoo, qis qis.