Diesel oil pour point depressant containing allyl phenyl ether as well as preparation method and application of diesel oil pour point depressant

A technology of allyl phenyl ether and diesel pour point depressant, which is used in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve problems such as affecting the normal use of diesel oil, blocking diesel engine filters, etc., to improve the pour point depressant effect. , The effect of improving cold flow and solubility

Pending Publication Date: 2022-05-13
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under low temperature conditions, the n-paraffins in diesel will be precipitated in the form of wax crystals, which will block the diesel engine filter and affect the normal use of diesel in industrial transportation and agricultural production

Method used

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  • Diesel oil pour point depressant containing allyl phenyl ether as well as preparation method and application of diesel oil pour point depressant
  • Diesel oil pour point depressant containing allyl phenyl ether as well as preparation method and application of diesel oil pour point depressant
  • Diesel oil pour point depressant containing allyl phenyl ether as well as preparation method and application of diesel oil pour point depressant

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A diesel decoagulant containing allyl phenyl ether, the preparation method comprising the following steps:

[0030] 1) Preparation of tetradeteryl methacrylate:

[0031] The methacrylic acid and tetradecanol were added to toluene in a molar ratio of 1.2:1, and then the polymerization inhibitor p-benzenediol was added to the catalyst p-toluenesulfonic acid, heated and stirred until the solid was dissolved, and then pre-reacted at 90 ° C for 1h; then heated to 100-120 ° C, and the esterification reaction was carried out for 4-6 hours to obtain the reaction mixture; The amount of hydrophenol is 0.56-0.63% of the total mass of methacrylic acid and tetradecyl alcohol, and the amount of p-toluenesulfonic acid is 1.1-1.3% of the total mass of methacryl acid and tetradecyl alcohol;

[0032] 5wt% NaOH solution was used to wash until the solution was weakly alkaline, and then washed with deionized water to neutral, the organic phase was placed in a steamer for rotational evaporation,...

Embodiment 1

[0040] A phenoxy-containing diesel decoagulant, is made of tetradeceth methacrylate and allyl phenyl ether polymerization, the preparation method comprises the following steps:

[0041] 1) Add tetradecanol (21.44g) and methacrylic acid (10.33g) to the dry and clean three-mouth flask in a molar ratio of 1:1.2, and then move the three-mouth flask to the oil bath pot, install the thermometer, condensing tube, water separator and pass water;

[0042] 2) Add the polymerization inhibitor hydroquinone and catalyst p-toluenesulfonic acid, the amount of tetradecanol and methacrylic acid total mass of 0.6% and 1.2%, respectively, and 40mL reaction solvent toluene, and then heat up to 60 °C to dissolve the solid, and maintain 90 °C for 1 hour of pre-reaction;

[0043] 3) Heat up to 120 °C and react for 6 hours; after the resulting reaction product system is cooled to room temperature, pour into a 250mL separating funnel, wash 3 times with 5wt% NaOH solution to weak alkaline, wash 3 times wit...

Embodiment 2

[0049] A phenoxy-containing diesel deagulant, composed of tetradeceth methacrylate and allyl phenyl ether polymerization, wherein the dosage of tetradeceth methacrylate is 5.65g, the amount of allyl phenyl ether is 0.89g, and the molar ratio of tetradeceth methacrylate to allyl phenyl ether is 3:1. The remainder is the same as Example 1.

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Abstract

The invention relates to a diesel oil pour point depressant containing allyl phenyl ether and a preparation method and application thereof.The preparation method comprises the steps that methacrylic acid higher alcohol ester and allyl phenyl ether are mixed and subjected to a polymerization reaction under the action of an initiator, and a tetradecyl methacrylate-allyl phenyl ether polymer is obtained; the diesel oil pour point depressant containing the allyl phenyl ether is obtained. Compared with the prior art, the pour point depressant has the advantages that the pour point depression effect of the pour point depressant on diesel oil can be further improved, and the cold flow property of the diesel oil is effectively improved. When the prepared pour point depressant is added into commercially available-10 # diesel oil, the condensation point and the cold filter plugging point can be respectively reduced by 10-14 DEG C and 6-9 DEG C, so that the diesel oil has better flowability at a lower temperature.

Description

Technical field [0001] The present invention belongs to the field of diesel decoagulant technology, relates to an allyl phenyl ether containing diesel decoagulant and preparation method and application thereof. Background [0002] Diesel is an important fossil fuel that contains a mixture of many complex hydrocarbons such as aliphatic hydrocarbons, isoparaffins, aromatic hydrocarbons and non-hydrocarbon compounds, which are widely used in industrial transportation and agricultural production. At low temperatures, the positive alkanes in diesel will precipitate in the form of wax crystals, thereby blocking the diesel engine filter and affecting the normal use of diesel in industrial transportation and agricultural production. In order to enable diesel to be used normally under low temperature conditions, it is necessary to use certain methods to improve the low temperature performance of diesel, and there are currently blending methods, adding diesel depressants and improving pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/198C10L1/04C10L10/14
CPCC10L1/1985C10L1/04C10L10/14C10L2270/026
Inventor 蔺华林任飞鹤卢义麟孙彬陈亚莉薛原韩生
Owner SHANGHAI INST OF TECH
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