Characterisation of coking activity during supercritical hydrocarbon pyrolysis
نویسندگان
چکیده
منابع مشابه
Characterisation of coking activity during supercritical hydrocarbon pyrolysis
The active cooling of the Supersonic Combustion Ramjet engine, for hypersonic flight purpose, is ensured thanks to fuel, n-dodecane for the present study. The endothermic fuel pyrolysis, starting above 800 K, could generate an unwanted coke formation. Experimental tests up to 1125 K and between 1 MPa and 6 MPa have been performed on the hydrocarbon fuel pyrolysis to evaluate the coking activity...
متن کاملA kinetic generator of hydrocarbon pyrolysis mechanisms
This paper presents the approach and the results of a kinetic generator in the area of hydrocarbon pyrolysis mechanisms. Radical formation and successive radical decomposition are taken into account. Care is paid to the description of molecule identification procedure and to its homomorphism which enables unique and no ambiguous reactions. New results referring to the pyrolysis of olefins as we...
متن کاملComparison of Thermodynamic and Experimental Yields during Supercritical Water Gasification of Biomass and Pyrolysis Char
Materials with different C/O ratios and volatile matter content (E.grandis and four pyrolysis chars of E.grandis) were used as feedstock during SCWG experiments at 450 °C and 27 MPa. Experimental gas yields and gasification efficiencies were compared to calculated thermodynamic equilibrium results to determine the effect of O/C ratio and volatile matter content on the experimental and thermodyn...
متن کاملCharacterisation of Reactions in Supercritical Difluoromethane
Reactions in scCO2 are frequently limited by the low polarity of the solvent. This may result in low solute/ product solubility or low catalyst activity. The use of more polar sc fluids such as difluoromethane (HFC 32) can circumvent many of these issues and facilitate reactions that are not possible in CO2. We demonstrate the use of HFC 32 for three types of reaction; an esterification reactio...
متن کاملEstimation 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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Fuel Processing Technology
سال: 2008
ISSN: 0378-3820
DOI: 10.1016/j.fuproc.2008.07.004