Poov tshuaj tsim rau carbon dub
Poov tshuaj tsim (raupa roj carbonxim dub)
Hauv kev tsim cov carbon ua xim dub, tshwj xeeb tshaj yog hauv cov pa tshwj xeeb dub thiab muaj cov qauv tshuaj tiv thaiv zoo nkauj ua si ib lub luag haujlwm tseem ceeb. Ua ntej xyoo 1990, sodium hydroxide feem ntau siv raws li cov txheej txheem inhibitor; Nrog rau kev txhim kho cov pa tshwjxeeb dub, nws yog maj mam hloov los ntawm cov poov tshuaj carbonate; Txawm li cas los xij, vim muaj solubility qis ntawm potassium carbonate, nws yog nquag mus rau clogging ntawm lub makzzle dub, qee zaum zoo thiab qee zaum qhov tsis zoo. Txij xyoo dhau los txij xyoo 2004, peb tau koom tes nrog cov pa roj carbon dub hauv Tebchaws Meskas tau sim ua cov poov tshuaj Dub, nrog cov txiaj ntsig dub. Los ntawm ze li kaum xyoo ntawm kev nce qib, cov tshuaj potassium tau dhau los ua cov qauv tsim tawm hauv Carbon Dub.
Nyob rau tib lub sijhawm, cov ntsiab lus tshauv kuj tseem yog qhov ntsuas tau tseem ceeb hauv cov xim dub. Yog li ntawd, txhawm rau kom ntseeg tau tias cov hmoov tshauv hauv carbon dub sib ntsib tus qauv, qee qhov kev xav tau muab tso rau cov tshuaj lom thiab muaj cov tshuaj lom neeg hauv cov poov tshuaj. Tam sim no, cov qauv zoo uas tau txais feem ntau ntawm cov pa roj carbon dub muaj raws li hauv qab no:
|
Kev qhia tshwj xeeb |
Khoom (ⅰ) |
Kua (ⅱ) |
Kua (ⅲ) |
|
Kev tshwm sim |
Ntshiab dawb cov siv lead dawb |
Tsis muaj xim & pob tshab |
Tsis muaj xim & pob tshab |
|
Lam xav |
97% min |
75% min |
65% min |
|
Cov ntsiab lus chloride |
0. 01% Max |
0. 01% Max |
0. 01% Max |
|
K2CO3 cov ntsiab lus |
{{0 {}}. 5% Max |
{{0 {}}. 5% Max |
{{0 {}}. 5% Max |
|
Poov tshuaj hydroxide cov ntsiab lus (suav raws li hydroxide ions) |
{{0 {}}. 5% Max |
{{0 {}}. 2% Max |
{{0 {}}. 2% Max |
|
PH tus nqi (ntawm 25 degree 10% daws) |
9-11 |
9-11 |
9-11 |
|
Ntom sg (ntawm 20 degree) |
---- |
1.57 |
1.47 |
|
Tag nrho cov kab hlau Cov ntsiab lus calcium |
10PPM Max 10PPM Max |
10PPM Max 10PPM Max |
10PPM Max 10PPM Max |
|
Cov ntsiab lus magnesium |
10PPM Max |
10PPM Max |
10PPM Max |
|
Sodium Cov Ntsiab Lus |
0. 3% Max |
0. 3% Max |
0. 3% Max |
|
Sulfide cov ntsiab lus |
1ppm max |
1ppm max |
1ppm max |
Tshwj xeeb, nyob rau hauv cov txheej txheem ntau lawm ntawm carbon Dub, Potassium tsim cov cai feem ntau ua cov luag haujlwm hauv qab no:
1. Decompose hauv qab cov kev mob siab los tsim cov pa oxygen, txhawb kev sib txuas ntawm cov pa hluav taws xob ntawm hydrocarbon.
2. Raws li cov catalyst, nrawm nrawm rau cov pyrolysis sib xyaw ntawm cov pa hluav taws xob hauv hydrocarbon thiab nce qib ntxiv rau cov tshuaj ntsuab dub.
3. Txhim kho kev faib tawm ntawm cov khoom pyrolysis thiab cov khoom ntawm carbon dub los ntawm kev sib cuam tshuam nrog reactant.
Hauv cov ntsiab lus, potassium tsim ua lub luag haujlwm tseem ceeb hauv kev tsim cov carbon dub. Nws tsis yog txhim kho cov txiaj ntsig thiab cov tshuaj ntsuab dub, tab sis kuj tseem muaj cov yam ntxwv ib puag ncig, uas tau raws li kev txhim kho kom ruaj khov, uas tau ua tiav ntawm kev tsim khoom tam sim no. Yog li ntawd, nws yog ib qho tsim nyog yuav siv cov poov tshuaj tsim ua kev pab cuam tshuam thiab catalyst nyob rau hauv kev tsim cov carbon dub.
Cim npe nrov: poov tshuaj tsim rau carbon dub, Tuam Tshoj cov poov tshuaj tsim rau cov roj av dub, lwm tus neeg, Hoobkas
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