Tekanyetso ea bt4 ho lisebelisoa tse thibelang ho phatloha e bonts'a mekhahlelo e 'meli ea mantlha. Ho phaella moo, tse 'b’ ho bt4 e bolela Sehlopha sa IIb, e bontshang tshebediso ya yona dibakeng tseo e seng tsa merafo.
Sehlopha Le Boemo | Mocheso oa Mocheso le Sehlopha | |||||
---|---|---|---|---|---|---|
- | 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 | Ethane, Propane, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, Ammonia, Carbon monoxide, Ethyl Acetate, Acetic Acid | Butane, Ethanol, Propylene, Butanol, Acetic Acid, Butyl Ester, Amyl Acetate Acetic Anhydride | Pentane, Hexane, Heptane, Decane, Octane, Peterole, Hydrogen sulfide, Cyclohexane, Peterole, Khalase, Disele, Petroleum | Ether, Acetaldehyde, Trimethylamine | Ethyl nitrite | |
IIB | Propylene, Acetylene, Cyclopropane, Coke Oven Gas | Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene | Dimethyl Ether, Isoprene, Hydrogen sulfide | Diethylether, Dibutyl Ether | ||
IIC | Khase ea Metsi, Haedrojene | Acetylene | Carbon Disulfide | Ethyl nitrate |
B
'B’ e bontsha boemo ba kgase tikolohong, e khethoa ka mekhahlelo ea litšupiso tsa liteko. Sehlopha sena se ikarabella haholo bakeng sa likheo tse ngata tseo likhase li ka fetang ho tsona le maqhubu a tsona a fokolang.. E arotsoe ka mekhahlelo e meraro: Sehlopha sa A, B, le C. Libaka tsa Sehlopha sa A li batla li bolokehile, Sehlopha sa B se kotsi ho feta, le Sehlopha sa C se kotsi, leha e sa tloaeleha hakaalo. Thepa e thibelang ho phatloha ea Sehlopha sa C e sebetsa maemong a Sehlopha sa A le sa B, Thepa ea Sehlopha sa B e loketse litlhophiso tsa Sehlopha sa A, mme thepa ya Sehlopha sa A ke ya ditikoloho tsa Sehlopha sa A feela. Ka hoo, Sehlopha sa B ka kakaretso ke boemo bo tloaelehileng ba lisebelisoa tse thibelang ho phatloha 'marakeng. Sehlopha sa maemo a phahameng har'a lihlopha tsena ke Sehlopha sa C > Sehlopha sa B > Sehlopha sa A.
T4
T4 e bolela ho mocheso tlhophiso ka hare ho tikoloho, e thehiloeng holim'a likhase’ libaka tse hotetsang. Likarolo tse phahameng tsa mocheso li hloka mocheso o tlase oa ts'ebetso le litlhaloso tse thata tsa lisebelisoa. Likarolo tsena li hlophisitsoe ho latela maemo a itseng a tlhahiso, e hlokang ho khethoa ha lisebelisoa tse thibelang ho phatloha ho lumellana le maemo a sebele a mocheso oa tikoloho. Thepa e lekantsoeng ea T4 e etselitsoe ho sebetsa ka mocheso ho tloha ho 135 ho fihlela ho 200 ° C.
Litekanyetso tsa ho phatloha ha bt4 ke tsona tse atileng haholo, ho fana ka ts'ebeliso e pharaletseng le khetho e pharaletseng ea libaka tse sebetsang.