Midkee Leh Heerka Sare ee Caddeynta Qarxinta, BT4 ama CT4

Kala-soocidda aan qarxin ee qalabka CT4 ayaa ka sarreysa qalabka BT4.

Heerka Iyo Heerka	Heerkulka Dabka Iyo Kooxda
-	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, Kaarboon monoksaydh, Ethyl acetate, Acid acid	Butane, Ethanol, Propylene, Butanol, Acid acid, Butyl Ester, Amyl Acetate Acetic Anhydride	Pentane, Hexane, Heptane, Decane, Octane, Shidaal, Hydrogen Sulfide, Cyclohexane, Shidaal, Kerosene, Naaftada, Batroolka	Eter, Acetaldehyde, Trimethylamine		Ethyl Nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke Oven Gaas	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	Dimethyl Ether, Isprene, Hydrogen Sulfide	Diethylether, Dibutyl Ether
IIC	Gaaska Biyaha, Hydrogen	Acetylene			Kaarboon Disulfide	Ethyl Nitrate

BT4 waxaa loo kala saaraa sida kooxda heerkulka B, halkaasoo heerkulka ugu sarreeya ee qalabka T4 uusan ka badnayn 135 ° C. CT4 waxa ay haysaa darajada heerka C ee ilaalinta qaraxa, marka la barbar dhigo BT4, waxayna ku habboon tahay jawiga qaba in gaas halis ah sida hydrogen iyo acetylene, Joogtaynta heerkulka dusha sare ee 135 ° C.

Baaxadda Isticmaalka

BT4 waxay ku habboon tahay gaasaska guud oo ay ku jiraan methane, ethane, batroolka, iyo hydrogen sulfiid.

CT4 wuxuu ka kooban yahay tiro ballaadhan oo aan badnayn qarxa gaasaska, sida hydrogen iyo gaaska biyaha ee heerka CT1, acetylene ee heerka CT2, iyo kaarboon-ka carbounku wuxuu ku dhacaa heerka CT4.