What is the enhanced distillation aid? In which areas is the main application?
The shortage of crude oil and the deterioration of light oil yield caused by weight loss have become a bottleneck restricting the survival and development of various refineries in China. Improving the yield of light oil and better meeting market demand are related to the sustained and rapid development of the national economy. The method of processing and equipment modification can be adopted to improve the yield of light oil [1], and the use of intensive distillation aid is also one of the measures. Intensive distillation aids were first proposed by former Soviet scholars. The additive is added to the crude oil pipeline after electric desalting, and the oil recovery rate is increased by 1% to 6% by destroying the phase balance without changing the process parameters. The increase in the allocation rate mainly increases the output of the middle distillate (straight-run diesel), so there is a broad market prospect. Trolley Cargo,Cargo Trolley For Sale,Folding Cargo Trolley,Cargo Push Cart Guangdong Gongyou Lift Slings Machinery CO.,LTD , https://www.workmateslift.com
Mechanism of action The mechanism of action of distilling aids is mainly the theory of colloidal structure. In addition, surface tension mechanism, polymerization mechanism and azeotropic mechanism are also used [2-3]. The addition of intensive distillation aids can improve the solubility of petroleum dispersion systems, shield the colloidal adsorption field, and break the original balance, so that the trapped hydrocarbons in those solvation layers can be released, thereby increasing the extraction rate.
The similar compatibility mechanism is similar to the mechanism of adding some aromatic compounds (such as aromatic oil concentrate and residual oil extraction oil [4]) to the crude oil, enhancing the dissolving ability of the dispersion medium to adsorb the hydrocarbons in the solvation layer, and reducing The parameters of the complex structure reflect the similarly compatible extraction, which offsets the effect of additional gravitation to a certain extent, reduces the phase change enthalpy, and the phase transition temperature decreases accordingly. The hydrocarbons released from the adsorbed solvation layer are introduced into the boiling process when they reach the boiling point, and are apparently expressed as an increase in the dialing rate.