Mechanisms of propylene glycol and triacetin pyrolysis.

Modeling the impact of solid surfaces in thermal degradation processes.

Glycerol (GC, propane-1,2,3-triol), propylene glycol (PG, propane-1,2-diol), and triacetin (TA, propane-1,2,3-triyl triacetate) (Figure 1) are commonly used as solvents, food additives, and humectants in the food and tobacco industries. Their use often involves high-temperature conditions, in which thermal decomposition reactions occur, exposing the human body to potentially harmful substances ...

Study of Surface Tension of Binary Mixtures of Poly (Ethylene Glycol) in Water and Poly (Propylene Glycol) in Ethanol and its Modeling Using Neural Network

Density and Speed of Sound of Diethylene Glycol Monoethyl Ether + Propylene Glycol at T = (288.15–318.15) K

Thedensity(ρ) and speed of sound (u)of the binarymixture (diethylene glycol monoethyl ether (carbitol) + propylene glycol (PG)) have been reported at T= (288.15, 298.15, 308.15 and 318.15) K. The excess molar volume ( ) and isentropic compressibility deviation (Δκs) were calculated using the measured data. The obtained values of ( ) and (Δκs) are negative and positive,...

Estimation of Kinetic Parameters of Coking Reaction Rate in Pyrolysis of Naphtha

The run length of cracking furnaces is limited by the formation of coke on the internal skin of the reactor tubes. The reaction mechanism of thermal cracking of hydrocarbons is generally accepted as free-radical chain reactions. On the basis of the plant output data and the insight in the mechanisms for coke formation in pyrolysis reactors, a kinetic model describing the coke formation has been...

P-27: Assessment of the Contraceptive Effects of Cyclo Hexyl and Propylene Glycol on Histological Changes of Rat Seminiferous Tubules

Background: According to highlighted role of men in family planning, the use of reversible methods of contraception with no adverse effects on androgen-dependent metabolic reactions is very important. Therefore, in order to achieve a conductor combination in the designing contraceptive drugs, in the study, the effect of two drugs: Propylene glycol and Cyclo Hexyl on histological parameters of s...