STUDY OF PROPERTIES OF CALCINED PETROLEUM COKE OBTAINED FROM DISTILLATE AND RESIDUAL RAW MATERIALS
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Abstract
The properties of calcined petroleum coke obtained from distillate and residual raw materials have been studied. It has been established that due to the peculiarities of the chemical composition of the raw materials of the coking process, there is a significant difference in the properties and structure of the obtained coke. The characteristics of coke samples during the adsorption of nitrogen and water vapor are studied. Regularities have been established for the change in the potential energy of water vapor adsorption to nitrogen adsorption. It is shown that with an increase in the hydrogen content in the structure of the calcined coke or a decrease in the ratio of carbon to hydrogen, the energy of water vapor adsorption to the coke surface increases. The distribution of micro and mesopores in samples of calcined coke has been studied. It has been established that the use of water vapor as an adsorbent makes it possible to study the distribution of micropores in petroleum coke in the range from 0.24 to 0.8 nm. The presence of the relationship between the raw materials of the coking process and the microstructure of the resulting coke with the distribution of micro and mesopores in its volume was revealed.
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References
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