Preparation method of low-temperature stabilizer

A low-temperature stability and stabilizer technology, applied in fuel additives, petroleum industry, fuels, etc., can solve the problems of poor low-temperature stability of bio-based hydrocarbon-rich fuels, achieve the effects of improving physical and chemical quality, stable properties, and expanding the scope of use

Active Publication Date: 2015-11-11
HUNAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose is to provide a method that does not need to modify the existing engine working mode and oil circuit structure, fundamentally solves the defect of poor low-temperature stability of bio-based hydrocarbon-rich fuels, and obtains a fuel that can maintain good fluidity, homogeneity, and Stable and qualified fuel, meeting the requirements of environmental protection emission indicators

Method used

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  • Preparation method of low-temperature stabilizer

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preparation example Construction

[0020] The preparation method of low temperature stabilizer

[0021] The preparation method of low-temperature stabilizer provided by the present invention: comprise the following steps: (the following components are parts by volume)

[0022] Such as figure 1 As shown in step S101, prepare stabilizer precursor A: add 3-10 parts of oleic acid, 2-5 parts of polyethylene glycol 400, and 2-5 parts of polyethylene glycol 1000 into the first reaction kettle and mix in proportion Evenly, react at 70°C-90°C, preferably 85°C, under the catalysis of a solid acid catalyst for 2h-4h, preferably 2h, cool to room temperature, filter, and then add 1-20 parts of hexadecyltrimethyl Ammonium bromide, 1-10 parts of lauryl methacrylate, 5-10 parts of polyoxyethylene lauryl ether, and 10-40 parts of triton were stirred for 1-2h to obtain stabilizer precursor A, and the composition of triton was Polyoxyethylene-8-octylphenyl ether, also known as polyethylene glycol p-isooctylphenyl ether. The pr...

Embodiment 1

[0031] Add 6 parts of oleic acid, 3 parts of polyethylene glycol 400, and 3 parts of polyethylene glycol 1000 into the first reaction kettle in proportion, react at 85°C for 2 hours under the catalysis of the solid acid catalyst p-toluenesulfonic acid, and cool to At room temperature, filter, then add 15 parts of cetyltrimethylammonium bromide, 5 parts of lauryl methacrylate, 6 parts of polyoxyethylene lauryl ether, and 35 parts of triton and stir for 1 hour to obtain the stabilizer precursor A;

[0032] Add 4 parts of isobutanol, 4 parts of isopropanol, 4 parts of octanol, and 2 parts of propylene glycol into the second reaction kettle in proportion, stir for 30 minutes at 25°C and mix well, then add 5 parts of Tween 80 and 3 parts of Diethanolamine was heated to 40°C and continued to stir for 30 minutes to mix evenly to obtain stabilizer precursor B;

[0033] The stabilizer precursor A, the stabilizer precursor B and 5 parts of xylene were mixed and stirred at room temperat...

Embodiment 2

[0036] Add 10 parts of oleic acid, 5 parts of polyethylene glycol 400, and 5 parts of polyethylene glycol 1000 in proportion to the first reaction kettle, at 80 ° C and in the solid acid catalyst Fe 2 (SO 4 ) 3React under the catalysis of 4h, cool to room temperature, filter, then add 20 parts of cetyltrimethylammonium bromide, 1 part of lauryl methacrylate, 10 parts of lauryl polyoxyethylene ether, 10 parts of triton Stir for 2h to obtain stabilizer precursor A;

[0037] Add 5 parts of isobutanol, 5 parts of isopropanol, 6 parts of octanol, and 6 parts of propylene glycol into the second reaction kettle in proportion, stir for 30 minutes at 25°C and mix well, then add 6 parts of Tween 80, 5 parts of Diethanolamine was heated to 20°C and continued to stir for 30 minutes to mix evenly to obtain stabilizer precursor B;

[0038] The stabilizer precursor A, the stabilizer precursor B and 6 parts of xylene were mixed and stirred at room temperature for 30 minutes, left to stand ...

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Abstract

The invention provides a preparation method of a low-temperature stabilizer used in bio-based hydrocarbon-rich fuels, wherein the preparation method includes the steps of 1) preparing a stabilizer precursor A from following components, by volume, 3-10 parts of oleic acid, 2-5 parts of polyethylene glycol 400, 2-5 parts of polyethylene glycol 1000, 1-20 parts of cetyl trimethyl ammonium bromide, 1-10 parts of lauryl methacrylate, 5-10 parts of lauryl alcohol polyoxyethylene and 10-40 parts of triton; 2) preparing a stabilizer precursor B from following components, by volume, 1-5 parts of isobutyl alcohol, 1-5 parts of isopropyl alcohol, 2-6 parts of octanol, 2-6 parts of propylene glycol, 3-6 parts of tween-80 and 1-5 parts of diethanol amine; and 3) mixing and stirring uniformly the stabilizer precursor A, the stabilizer precursor B and 2-6 parts by volume of dimethylbenzene under the room temperature condition, allowing the mixture to stand, and filtering the mixture to remove precipitates to obtain the low-temperature stabilizer. The low-temperature stabilizer can effectively solve the defect of a poor low-temperature stability of the bio-based hydrocarbon-rich fuels, and can be used in the technical fields of application of a biomass pyrolysis fuel.

Description

technical field [0001] The invention relates to the technical field of application of biomass cracking fuel, and more specifically, relates to a preparation method of a low-temperature stabilizer for bio-based hydrocarbon-rich fuel. Background technique [0002] At present, the global energy resources are gradually depleted, the demand continues to expand, and environmental problems are becoming increasingly prominent. In this context, the development of biomass energy has attracted worldwide attention. my country's energy utilization of renewable animal and vegetable oils is mainly based on transesterification to prepare biodiesel. After years of development, this process has formed a complete biodiesel production technology system. However, due to the defects in the molecular structure of biodiesel and the high cost of raw materials, the further development of the biodiesel industry is limited. Catalytic cracking to prepare bio-based hydrocarbon-rich fuel is another meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L10/14
Inventor 张爱华李昌珠易智彪肖志红刘汝宽吴红
Owner HUNAN ACAD OF FORESTRY
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