STUDY OF KINETIC REGULARITIES OF THERMAL DECOMPOSITION OF CARBONATE DRILL CUTTINGS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Saratovskiy nacional'nyy issledovatel'skiy gosudarstvennyy universitet imeni N. G. Chernyshevskogo
Ural'sk, Kazakhstan
Ural'sk, Kazakhstan
2.
Saratovskiy nacional'nyy issledovatel'skiy gosudarstvennyy universitet imeni N. G. Chernyshevskogo
Type:
Article
Pages:
from 109
to 113
Status:
In work
Language:
Russian
Keywords:
DRILL CUTTINGS, Z-MASTERPLOT METHOD, KINETICS, KINETIC MODEL, CONVERSION
Abstract (English):
In this article, the Z-masterplot method is used to determine the kinetic model of the pyrolysis process of complex raw materials of carbonate drill cuttings (CDC) on an oil basis. Z-masterplot is an international tool widely used in kinetic analysis to study a complex phenomenon, regardless of the fact that thermal decomposition reactions of carbonate oil-based drilling mud are continuously occurring. This method allows you to visualize kinetic data in special coordinates, which allows you to determine the order of state, energy consumption and other important parameters. Kinetic models are mathematical equations describing the rate of a chemical regime depending on the content of reagents, temperature and other factors. The choice of the model allows you to determine the limiting stages and intermediate connections of the process. It is also possible to optimize the process, change the reaction conditions to achieve greater speed or selectivity, and predict the course of the reaction under the conditions. The most suitable model can be obtained by comparing the results of the proposed kinetic model with experimental data. It has been found that the high heating rate helps to predict the mathematical model, but cannot be described by a single reaction model. The process of transformation of the CDC pyrolysis model at different heating rates is also determined. It has been established that the process of pyrolysis of CDC is very complicated at lower heating rates. The study of the kinetics of pyrolysis of drilling sludge is aimed at optimizing the process of thermochemical conversion of drilling waste in order to increase the yield of liquid hydrocarbons and minimize the formation of undesirable products.
In this article, the Z-masterplot method is used to determine the kinetic model of the pyrolysis process of complex raw materials of carbonate drill cuttings (CDC) on an oil basis. Z-masterplot is an international tool widely used in kinetic analysis to study a complex phenomenon, regardless of the fact that thermal decomposition reactions of carbonate oil-based drilling mud are continuously occurring. This method allows you to visualize kinetic data in special coordinates, which allows you to determine the order of state, energy consumption and other important parameters. Kinetic models are mathematical equations describing the rate of a chemical regime depending on the content of reagents, temperature and other factors. The choice of the model allows you to determine the limiting stages and intermediate connections of the process. It is also possible to optimize the process, change the reaction conditions to achieve greater speed or selectivity, and predict the course of the reaction under the conditions. The most suitable model can be obtained by comparing the results of the proposed kinetic model with experimental data. It has been found that the high heating rate helps to predict the mathematical model, but cannot be described by a single reaction model. The process of transformation of the CDC pyrolysis model at different heating rates is also determined. It has been established that the process of pyrolysis of CDC is very complicated at lower heating rates. The study of the kinetics of pyrolysis of drilling sludge is aimed at optimizing the process of thermochemical conversion of drilling waste in order to increase the yield of liquid hydrocarbons and minimize the formation of undesirable products.
Keywords:
DRILL CUTTINGS, Z-MASTERPLOT METHOD, KINETICS, KINETIC MODEL, CONVERSION
DRILL CUTTINGS, Z-MASTERPLOT METHOD, KINETICS, KINETIC MODEL, CONVERSION
