Shenhai Pasi-Faamaoniga
Ole fua ole bt4 ile mea e fa'ao'o ai mea pa'u o lo'o fa'ailoa mai ai ni ta'iala autu se lua. E le gata i lea, o le ‘b’ i le bt4 o lona uiga o le Vasega IIb, fa'ailoaina lona fa'aogaina i totonu o nofoaga e le o maina.
| Vasega Ma Tulaga | Tempera Fa'amumu ma Vaega | |||||
|---|---|---|---|---|---|---|
| - | T1 | T2 | T3 | T4 | T5 | T6 |
| - | T>450 | 450≥T＞300 | 300≥T＞200 | 200≥T＞135 | 135≥T＞100 | 100≥T＞85 |
| I | Methane | |||||
| IIA | Etana, Propane, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, Amonia, Carbon Monoxide, Ethyl Acetate, Acetic Acid | Butane, Ethanol, Propylene, Butanol, Acetic Acid, Butyl Ester, Amyl Acetate Acetic Anhydride | Pentane, Hexane, Heptane, Decane, Oktane, Gasolini, Hydrogen Sulfide, Cyclohexane, Gasolini, Kerosene, Tisele, Suauu | Eteru, Acetaldehyde, Trimethylamine | Ethyl Nitrite | |
| IIB | Propylene, Acetylene, Cyclopropane, Kesi Oven Coke | Epoxy Z-Alkana, Epoxy Propane, Butadiene, Ethylene | Dimethyl Eteru, Isoprene, Hydrogen Sulfide | Diethyleter, Dibutyl Eteru | ||
| IIC | Vai Kasa, Hydrogen | Acetylene | Carbon Disulfide | Ethyl Nitrate | ||
B
O le ‘B’ e fa'ailoa mai ai le maualuga o le kesi i le si'osi'omaga, fa'amauina e ala i fa'ata'ita'iga fa'asino tulaga. O lenei fa'avasegaga e fa'atatau mo le maualuga o va e mafai ona ui atu ai kasa ma le la'ititi o le fa'amumu. Ua fa'avasegaina i vaega e tolu: Vasega A, B, ma C. Vasega A siosiomaga e fai si saogalemu, Vasega B e sili atu ona mata'utia, ma le Vasega C e matautia, e ui ina le masani ai. Vasega C mea e fa'asa'o pa'u e fa'aoga i totonu ole Vasega A ma B si'osi'omaga, Vasega B meafaigaluega e fetaui lelei mo le Vasega A fa'atulagaina, ma meafaigaluega Vasega A e fa'apitoa mo siosiomaga Vasega A. O le faaiuga, O le Vasega B e masani lava o le tulaga masani mo meafaigaluega faʻamaonia pa i le maketi. O le fa'asologa i totonu o nei vasega o le Vasega C > Vasega B > Vasega A.
T4
T4 fa'ailoa mai le vevela fa'avasegaga i totonu ole si'osi'omaga, fa'avae i kasa’ fa'atatau fa'amumu. O fa'avasegaga maualuga o le vevela e mana'omia ai le fa'aitiitia o le vevela o le fa'agaoioiga ma le fa'amaualuga o mea faigaluega. O nei fa'avasegaga e fa'atatau i tulaga fa'apitoa o gaosiga, e mana'omia ai le filifilia o mea e fa'asa'o fa'alavelave e fa'afetaui le maualuga o le vevela o le si'osi'omaga. T4-fuafua meafaigaluega ua mamanuina e faagaoioia i le vevela e amata mai 135 i le 200°C.
Ole fua fa'atatau ole pa'u ole bt4 e sili ona taatele, tu'uina atu le fa'aoga lautele ma se filifiliga lautele o siosiomaga talafeagai.