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Compound biodiesel pour point depressant, preparation method and application

A biodiesel and pour point depressant technology, which is applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of poor fluidity of biodiesel pour point depressants, alleviate the shortage of petrochemical energy, change crystallization habits, and improve receptivity effect

Active Publication Date: 2022-02-08
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a compound biodiesel pour point depressant, preparation method and application in order to solve the above problems, realize the reduction of the cloud point, cold filter point and pour point of soybean oil biodiesel, and effectively improve the biological The problem of poor fluidity of diesel pour point depressants at low temperatures can enable soybean oil biodiesel to be used in cold regions and alleviate the shortage of petrochemical energy

Method used

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  • Compound biodiesel pour point depressant, preparation method and application
  • Compound biodiesel pour point depressant, preparation method and application
  • Compound biodiesel pour point depressant, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix 3 parts of triethanolamine oleic acid soap with 3 parts of myristyl methacrylate-norbornene according to the ratio of 1:1 by weight to obtain a compound biodiesel pour point depressant.

[0031] Such as figure 2 and image 3 shown by figure 2 It can be seen that c is -C=O-O-linked methylene-CH 2 The peak on -, d, e, f are norbornene-CH- peaks, δ H There is no obvious characteristic peak in 5-7, proves that C=C is fully aggregated; By image 3 It can be seen that 2927, 2855cm -1 The C-H characteristic absorption peaks in the norbornene structure appeared, 1728, 1639cm -1 It is the absorption peak of myristyl methacrylate C=O.

[0032] When the composite biodiesel pour point depressant is applied, it is added to soybean oil biodiesel at a mass percentage of 0.1-0.3%, and ultrasonically dispersed at 40° C. for 45 minutes. The test results are as follows:

[0033] The application effect of the composite biodiesel pour point depressant prepared in Table 1 Examp...

Embodiment 2

[0036] Mix 3 parts of glycerol random polyether with 3 parts of myristyl methacrylate-norbornene according to the ratio of 1:1 by weight to obtain a compound biodiesel pour point depressant.

[0037] When the composite biodiesel pour point depressant is applied, it is added to soybean oil biodiesel at a mass percentage of 0.1-0.3%, and ultrasonically dispersed at 40° C. for 45 minutes. The test results are as follows:

[0038] The application effect of the composite biodiesel pour point depressant prepared in Table 2 Example 2

[0039] Amount added CP / ℃ CFPP / ℃ PP / ℃ 0.1％ 8 -2 -8 0.2％ 7 -2 -10 0.3％ 7 -3 -10

Embodiment 3

[0041] Mix 3 parts of fatty alcohol polyoxyethylene ether with 3 parts of myristyl methacrylate-norbornene according to the ratio of 1:1 by weight to obtain a compound biodiesel pour point depressant.

[0042] When the composite biodiesel pour point depressant is applied, it is added to soybean oil biodiesel at a mass percentage of 0.1-0.3%, and ultrasonically dispersed at 40° C. for 45 minutes. The test results are as follows:

[0043] The application effect of the composite biodiesel pour point depressant prepared in table 3 embodiment 3

[0044] Amount added CP / ℃ CFPP / ℃ PP / ℃ 0.1％ 7 -2 -9 0.2％ 6 -4 -10 0.3％ 6 -5 -11

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Abstract

The invention relates to a biodiesel pour point depressant, in particular to a compound biodiesel pour point depressant, a preparation method and application. The pour point depressant comprises a surfactant and tetradecyl methacrylate-norbornene in equal parts by weight. The preparation method of the pour point depressant comprises the step of mixing the surfactant and the tetradecyl methacrylate-norbornene well according to the weight part ratio of 1: 1. Compared with the prior art, the synthesized polymer pour point depressant contains alkyl long chains, so that the oil solubility of the polymer in biodiesel can be improved, and the polymer pour point depressant and wax crystals can be subjected to eutectic interaction. Norbornene has relatively large steric hindrance, so that the dispersity in the biodiesel can be effectively improved, the crystallization habit is changed, and the low-temperature fluidity of the biodiesel is further reduced. The surfactant has good oil solubility, has good sensitivity to the soybean oil biodiesel, and has a synergistic effect with the polymer pour point depressant to jointly promote the low-temperature flowing property of the biodiesel.

Description

technical field [0001] The invention relates to a biodiesel pour point depressant, in particular to a composite biodiesel pour point depressant, a preparation method and an application. Background technique [0002] Due to the increasing shortage of global energy and the deterioration of the environment, biodiesel has been extensively researched and developed as a renewable energy. Biodiesel is fatty acid methyl ester, which is produced by transesterification of soybean, rapeseed, corn, animal fat and waste oil from the catering industry. Compared with petrochemical diesel, biodiesel has the advantages of higher cetane number, better lubricity, higher flash point, non-toxic, biodegradable, etc. Its high oxygen content is very conducive to compression ignition The normal combustion of the engine reduces the emission of harmful substances in the exhaust gas, such as CO and SO 2 , Emissions of aromatic hydrocarbons. However, biodiesel has poor low-temperature fluidity, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C10L1/14C10L10/14C10L1/16C10L1/19C10L1/198C10L1/222C10L1/24
CPCC10L1/02C10L1/14C10L1/143C10L10/14C10L1/222C10L1/1985C10L1/2475C10L1/19C10L1/1905C10L1/1608Y02E50/10
Inventor 韩生孙彬任飞鹤赵玉壮孙士轶卢义麟薛原
Owner SHANGHAI INST OF TECH
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