CN102911719A - Method of deep oxidation sweetening for diesel oil - Google Patents
Method of deep oxidation sweetening for diesel oil Download PDFInfo
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- CN102911719A CN102911719A CN 201210422317 CN201210422317A CN102911719A CN 102911719 A CN102911719 A CN 102911719A CN 201210422317 CN201210422317 CN 201210422317 CN 201210422317 A CN201210422317 A CN 201210422317A CN 102911719 A CN102911719 A CN 102911719A
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- diesel oil
- room temperature
- diesel
- supernatant liquid
- oxidative desulfurization
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Abstract
The invention relates to a method for treating hydrocarbon oil by a two-step or multi-step refining technological process at least containing one oxidization step in the absence of hydrogen. A method of deep oxidation sweetening for diesel oil comprises the steps of uniformly mixing the diesel oil and an oxidant and placing mixture into an ultrasonic reactor to react for some time, and then taking out the mixture and standing at a room temperature, taking supernatant liquid, adding an extracting agent to mix and oscillate, standing at the room temperature, and taking supernatant liquid. Tests prove that the sweetening effect of the method on the diesel oil is obviously better than an oxidation sweetening reaction effect without ultrasonic waves.
Description
Technical field
The present invention relates in a kind of situation there not being hydrogen, with the method for two steps that comprise at least 1 oxidation step or multistep process for refining process processing hydrocarbon ils.
Background technology
Along with the increase of in recent years China's processing import Middle East high-sulpur crude, the sulphur content that how to reduce solar oil becomes the key problem in technology of each refinery.At present, aspect deep desulfuration, mainly contain two kinds of techniques of hydrogenation and non-hydrogenation.Although the hydrodesulfurization sweetening effectiveness is obvious, good product quality, operational condition is harsh, a large amount of hydrogen of needs, and expense is high.Non-hydrodesulfurization mainly contains catalytic oxidation, H
2O
2Oxidation style, complexometry and biological desulphurization method etc.Wherein oxidative desulfurization techniques develops early, and technical study is more and more, and the oxygenant that has adopted has air, O
2, NO
2, H
2O
2, Cl O
2With peroxy acid etc.
Ultrasonic wave is made of the compressional wave of a series of density interphases, and by liquid medium to around propagate.When the ultrasonic wave of some strength is propagated, can produce the series of effects such as mechanics, calorifics, optics, electricity and chemistry in medium.Ultrasonic wave mainly is used in two aspects: detect ultrasonic and power ultrasonic.Power ultrasonic mainly is to provide powerful energy and reinforcement means to accelerate chemical reaction by hyperacoustic chemical reaction that act as.
Summary of the invention
The present invention aims to provide a kind of method that can improve the Deep Oxidative Desulfurization in Diesel via of diesel oil de-oiling rate.
The method of a kind of Deep Oxidative Desulfurization in Diesel via of the present invention comprises: diesel oil and oxygenant are mixed postposition enter in the ultrasonic wave reactor, take out after reaction for some time and at room temperature leave standstill, get supernatant liquid, add extraction agent and mix vibration, leave standstill under the room temperature, get supernatant liquid and get final product.
Preferably, ultrasonic frequency is 28kHz in the ultrasound reactor.
More preferably, the ultrasonic wave sound intensity is 0.204-0.408W/cm in the ultrasound reactor
2
More preferably, the mol ratio of oxygenant and diesel oil is 3-8%.
Test shows that the present invention obviously is better than not adding the effect of hyperacoustic oxidation desulfur reaction to the sweetening effectiveness of diesel oil.
Embodiment
Embodiment one.
The μ g/g diesel oil and the hydrogen peroxide that with mol ratio are 5% total sulfur content 1987.12 mix, and stir 10 minutes with the stir speed (S.S.) of 300r/min, and mixing postposition, to enter ultrasonic frequency be that 28kHz, the ultrasonic wave sound intensity are 0.408W/cm
2Ultrasound reactor in, react to take out after 15 minutes and at room temperature leave standstill, after layering, get supernatant liquid, add DMF and mix vibration, leave standstill under the room temperature, getting supernatant liquid adds DMF again and mixes to leave standstill under the vibration room temperature and get final product.The desulfurization degree that records diesel oil is 94.8%.
Embodiment two.
The μ g/g diesel oil and the hydrogen peroxide that with mol ratio are 5% total sulfur content 1987.12 mix, stir speed (S.S.) with 300r/min stirred 10 minutes, at room temperature leave standstill after mixing, after layering, get supernatant liquid, add DMF and mix vibration, leave standstill under the room temperature, getting supernatant liquid adds DMF again and mixes to leave standstill under the vibration room temperature and get final product.The desulfurization degree that records diesel oil is 67.2%.
Claims (4)
1. the method for a Deep Oxidative Desulfurization in Diesel via is characterized in that comprising: diesel oil and oxygenant are mixed postposition enter in the ultrasonic wave reactor, take out after reaction for some time and at room temperature leave standstill, get supernatant liquid, add extraction agent and mix vibration, leave standstill under the room temperature, get supernatant liquid and get final product.
2. the method for a kind of Deep Oxidative Desulfurization in Diesel via as claimed in claim 1 is characterized in that ultrasonic frequency is 28kHz in the ultrasound reactor.
3. the method for a kind of Deep Oxidative Desulfurization in Diesel via as claimed in claim 1 or 2 is characterized in that the ultrasonic wave sound intensity is 0.204-0.408W/cm in the ultrasound reactor
2
4. the method for a kind of Deep Oxidative Desulfurization in Diesel via as claimed in claim 1 or 2, the mol ratio that it is characterized in that oxygenant and diesel oil is 3-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210422317 CN102911719A (en) | 2012-10-30 | 2012-10-30 | Method of deep oxidation sweetening for diesel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210422317 CN102911719A (en) | 2012-10-30 | 2012-10-30 | Method of deep oxidation sweetening for diesel oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102911719A true CN102911719A (en) | 2013-02-06 |
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ID=47610303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210422317 Pending CN102911719A (en) | 2012-10-30 | 2012-10-30 | Method of deep oxidation sweetening for diesel oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102911719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192664A (en) * | 2018-01-26 | 2018-06-22 | 山东星火科学技术研究院 | A kind of high sour product sulfur removal technology |
-
2012
- 2012-10-30 CN CN 201210422317 patent/CN102911719A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192664A (en) * | 2018-01-26 | 2018-06-22 | 山东星火科学技术研究院 | A kind of high sour product sulfur removal technology |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |