کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9629195 | 461296 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A method for evaluating the kinetics of n-heptane-induced asphaltene precipitation from various Saskatchewan crude oils during light hydrocarbon flooding
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
A molar n-heptane programmed titration technique has been developed for evaluating the kinetics of n-heptane-induced asphaltene precipitation from three Saskatchewan crude oils during light hydrocarbon flooding. Results from the technique show that asphaltene precipitation kinetics can be modeled semi quantitatively in terms of a power law rate model. Values for the reaction order for n-heptane (35.8-43.3) were much larger than those for asphaltene (1.0-2.5) showing that asphaltene precipitation is more sensitive to the n-heptane added than the asphaltene content of the oil. Also, the large activation energies obtained (32-185Â kJ/mol) confirms experimentally that n-heptane asphaltene precipitation is not just a mere physical process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 84, Issues 2â3, JanuaryâFebruary 2005, Pages 311-314
Journal: Fuel - Volume 84, Issues 2â3, JanuaryâFebruary 2005, Pages 311-314
نویسندگان
Hussam H. Ibrahim, Raphael O. Idem,