Process for manufacturing emulsified fuels by using oily water

Abstract

The invention relates to a process for manufacturing emulsified fuels by using “oily water” that is proceeded by following steps: (1) preparing the “oily water” that has 0.02—30% (w / w) of combustible fuels dissolved in water and is blended with surfactants (or called as emulsifiers) by 0.01˜3% (w / w); (2) primarily mixing the emulsified “oily water with surfactants”, that was finished by step (1), with 60˜95% (w / w) of heavy fuel oil (abbreviation as heavy oil) or with 75˜98% (w / w) of diesel, respectively; and (3) keeping the mixtures that were finished by step (2), respectively, and mixed up further by using homogenizer to become an “oily water emulsified heavy oil” (OWEH) or an “oily water emulsified diesel” (OWED).

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the invention[0002]The invention relates to a process for manufacturing emulsified fuels by using “oily water”, that is proceeded by following steps: (1) preparing the “oily water” that has 0.02˜30% (w / w) of combustible fuels dissolved in water and is blended with surfactants (or called as emulsifiers) by 0.01˜3% (w / w); (2) primarily mixing the emulsified “oily water” with surfactants, that was finished by step (1), with 60˜95% (w / w) of heavy fuel oil (abbreviation as heavy oil) or with 75˜98% (w / w) of diesel, respectively; and (3) keeping the mixtures that were finished by step (2), respectively, and mixed up further by using homogenizer to become an “oily water emulsified heavy oil” (OWEH) or an “oily water emulsified diesel” (OWED). The OWEH and the OWED can be utilized for industrial boilers and diesel engines, respectively, not only elevates combustion efficiency and lower pollutant emission, but also save energy and reduce cost.[000...

AI Technical Summary

Benefits of technology

[0025]The objective of this invention is to offer a process for manufacturing emulsified fuels by using “oily water”, not only easily prepared with a low cost, but also able to elevate combustion efficiency, to lower pollutant emission, and to save energy.

Problems solved by technology

Therefore, in the combustion furnace, a high fuel concentration spot occurred and fuel was thermally decomposed in the oxygen lean condition to cause incomplete combustion and to produce a great amount of unburned carbon particulates and black smoke in the stack flue gases.

In this way, the incomplete combustion not only induced environmental pollutions, but also increased fuel consumption.

However, such a water-in-oil emulsified fuel not only can not achieve a stable emulsification condition, result in the separation of water and oil, but also do not display a significant energy saving fraction to afford a high expanse for the costs of emulsification process such as surfactants, hardware and labor costs.

Therefore, the emulsified fuels were not popularly commercialized in the past twenty years.

It has been found that conventional treatment of the oily industrial waste water is rather uneconomic.

More minutely, there are several problems found in conventional treatment of oily industrial waste water such as a high concentration of oil in water which was not easily bio-degradable, a high wastewater treatment cost, a low removal efficiency and always a result in secondary pollutions.

Although the oily industrial waste water can be treated more effectively by liquid injected incineration, but a soaring cost of auxiliary fuel makes it impractical.

If a large quantity of water is added, even though effective microburst happens, they are not effective enough to compensate the heat loss.

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