Method for preparing high-quality emulsified heavy oil

Abstract

The invention discloses a method for preparing high-quality emulsified heavy oil, which adopts a heavy oil emulsification technique of the combined emulsification of ultrasonic waves and mechanical stirring, and does not add any emulsifying agent in the emulsification process at all. In the method, the ultrasonic waves and the mechanical stirring synergistically act on a mixture of heavy oil and water to generate a larger shear stress to ensure that the heavy oil and the water are mixed together more sufficiently, and the particle size of a dispersed phase (water) is further thinned to form 'secondary emulsification' of an emulsion so as to form a micro-emulsion which is more stable, cannot be de-mixed easily and has thinner and more uniform emulsified particles. The method has the following main technical parameters that: the average sound energy density is 40 to 60 W / L, the ultrasonic frequency is 25 to 40 kHz, the stir speed is 100 to 300 r / min, the emulsifying temperature is 70 to80 DEG C, the emulsification time is 30 to 40 minutes, and the water mixing ratio is 1 to 25 percent. The method uses the synergistic action of the ultrasonic waves and the mechanical stirring to improve the emulsification effect and the stability of the emulsified heavy oil, and is a technique for preparing the high-quality emulsified heavy oil.

Description

technical field [0001] The invention relates to a technology for producing emulsified heavy oil through the combined action of ultrasonic wave and mechanical stirring, which is a novel high-efficiency technology for producing emulsified heavy oil, and belongs to the field of energy chemistry. technical background [0002] Energy shortage and environmental pollution have become important problems faced by countries all over the world. Energy conservation and emission reduction have attracted widespread attention and become a top priority. my country is a country that consumes a lot of energy, the energy problem is more serious, and the environmental pollution is more serious. Conserving energy and developing clean energy have become a long-term fundamental task for the future development of our country. With the rapid development of the world economy and the dwindling of conventional oil reserves, heavy oil has become one of the most important energy resources in the 21st ce...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the problems of poor stability of emulsified heavy oil and the inability to meet the requirements of industrial production. High quality emulsified heavy oil