کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
588486 878575 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lumped kinetics for supercritical water oxidation of oily sludge
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Lumped kinetics for supercritical water oxidation of oily sludge
چکیده انگلیسی

Oxidation of oily sludge in supercritical water was studied in batch reactor under the conditions of reaction temperature from 390 to 450 °C, pressure up to 25 MPa, and time from 1 to 10 min. The oily sludge oxidation undergoes a parallel-consecutive reaction pathways, in which it first decomposes to intermediates of aliphatic ketones, aldehydes and carboxylic acids with conjugated double bonds and via low molecular mass organic acids to the final product carbon dioxide. A 4-lump kinetic model was proposed to describe supercritical water oxidation of oily sludge. The experimental data obtained were used to estimate the six kinetic constants and the corresponding activation energies in the model. The model testing results revealed that the model predictions were in good agreement with the experimental results. The model helps us get good insight into the performance of the batch reactor that would be useful for optimization of supercritical water oxidation of oily sludge.

Figure optionsDownload high-quality image (68 K)Download as PowerPoint slideHighlights
► Oxidation of oily sludge in supercritical water.
► 4-Lump kinetic model.
► Six kinetic constants and the corresponding activation energies in the model.
► The model predictions were in good agreement with the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 89, Issue 3, May 2011, Pages 198–203
نویسندگان
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