[dē′waks·iŋ] (chemical engineering) Tshem tawm cov quav ciab los ntawm cov khoom lossis khoom; txheej txheem siv los cais cov khoom hydrocarbons los ntawm cov roj av.
Dab tsi yog dewaxing?
Dewaxing yog txheej txheem ntawm tshem cov quav ciab los ntawm cov roj hauv paus feedstocks ua ntej ua ntxiv rau hauv cov roj nplua nyeem. Dewaxing yog ua tiav nyob rau hauv ob txoj kev: xaiv hydrocracking kom tawg cov wax molecules, thiab crystallization los ntawm tub yees thiab dilution ntawm cov roj siv lub teeb roj hnyav.
Lub hom phiaj ntawm dewaxing yog dab tsi?
Lub hom phiaj tseem ceeb ntawm dewaxing yog kom tshem tawm cov hydrocarbons uas tuaj yeem nkag tau (piv txwv li, siv quav ciab) ua rau cov roj lubricating hauv paus nrog cov ntsiab lus qis qis (-9 txog 14 ° F).
Dab tsi yog hom dewaxing?
Ob hom kev dewaxing yog siv: xaiv hydrocracking thiab hnyav dewaxing. Hauv kev xaiv hydrocracking, ib lossis ob lub zeolite catalysts yog siv los xaiv cov khoom siv khib nyiab. Solvent dewaxing muaj ntau dua.
Dab tsi yog kuab tshuaj dewax?
[′säl·vənt di‚waks·iŋ] (chemical engineering) Petroleum refinery txheej txheem rau kev tshem tawm cov kuab tshuaj los ntawm cov roj; qhov sib tov ntawm cov roj ciab thiab cov kuab tshuaj yog chilled, ces lim los yog centrifuged kom tshem tawm cov roj precipitated; Cov kuab tshuaj tau rov qab los siv dua.
