Continuous monitoring of residual water content in boiling water-hydrocarbon emulsions during thermomechanical dehydration
|Updated:2026-01-06
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Continuous monitoring of residual water content in boiling water-hydrocarbon emulsions during thermomechanical dehydration
Chinese Journal of Chemical EngineeringVol. 76, Issue 12, Pages: 118-123(2024)
Affiliations:
1. Institute of Petroleum, Chemistry and Nanotechnologies, Kazan National Research Technological University,Russia,420015
2. Chair of Mining Engineering and Mineral Economics, University of Leoben,Austria,4820
Author bio:
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Published:2024
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A. Safiulina, S. Khusnutdinov, I. Khusnutdinov, I. Goncharova. Continuous monitoring of residual water content in boiling water-hydrocarbon emulsions during thermomechanical dehydration[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 118-123.
DOI:
A. Safiulina, S. Khusnutdinov, I. Khusnutdinov, I. Goncharova. Continuous monitoring of residual water content in boiling water-hydrocarbon emulsions during thermomechanical dehydration[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 118-123.DOI:
Continuous monitoring of residual water content in boiling water-hydrocarbon emulsions during thermomechanical dehydration
Significant waste resources are generated in the form of water-oil emulsions. These emulsions cannot be effectively destroyed on an industrial scale by traditional methods that rely on the settling of the aqueous phase
and therefore
they accumulate in large quantities. Thermomechanical dehydration
based on the evaporation of the water phase
presents a promising process for recycling such waste. However
within the framework of thermomechanical dehydration
the issue of optimizing energy costs for heating raw materials and controlling the water content in the product arises. Standard methods of determining water content under the boiling conditions of highly stable water-hydrocarbon emulsions are characterized by low efficiency
as they require constant sampling and the involvement of additional equipment and personnel. Consequently
this presents a challenge in predicting and creating an automated thermomechanical dehydration process. Therefore
dynamic curves depicting changes in the water content of these emulsions
depending on the temperature of the boiling liquid
have been obtained. It is proposed to determine the rate of temperature increase (d
T
/d
t
) of the boiling emulsion for continuous
real-time monitoring of the residual water content and for recording the moment of complete dehydration. Achieving a boiling emulsion temperature of 130-170 ℃ (or higher) and/or the rate of temperature increase from 3.0 to 5.5 (or above) indicates the
complete dehydration of the emulsion. The proposed method can be implemented in any industrial or laboratory-scale unit for thermomechanical dehydration without significant capital costs. It is based on the use of simple devices consisting of temperature sensors and a computing unit for determining the temperature and rate of heating.
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