Method for reducing cold filter plugging point of bio-fuel

A biofuel, cold filter point technology, applied in fuels, liquid carbon-containing fuels, petroleum industry, etc., can solve the problems of insufficient low-temperature flow performance of biofuels, limited use of biofuels, and insufficient cetane number. Simple formulation and method, extended trial period, improved kinematic viscosity and cold filter point

Inactive Publication Date: 2018-05-01
丰泰能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the cetane number of biofuels is not high enough, the calorific value is relatively low, and the stability is not good enough, and the shelf life is relatively short, which greatly limits the use of biofuels
In addition, the low-temperature flow performance of biofuels is not good enough, which is one of the main factors affecting the normal use of biofuels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for reducing the cold filter point of biofuel includes the following preparation methods:

[0021] 1) get fatty acid methyl ester, add 5% isopropanol of fatty acid methyl ester weight respectively, 0.8% triacetin, 0.2% dicyclohexyl nitrite;

[0022] 2) Put all the raw materials into the high-speed mixer, and at 60°C, stir at a high speed of 500r / min for 26min;

[0023] 3) Under the frequency of 75kHz and the temperature of 55℃, ultrasonic treatment for 15min is enough.

[0024] It is determined that the cold filter point of the biofuel in this example is -30°C, the freezing point is -36°C, and the kinematic viscosity is (20°C) 2.96mm 2 / s, the acid value is 0.16mgKOH / g, after 15 months, the acid value is 0.35mgKOH / g, the cold filtration point is determined according to JB / T 11943-2014, and the freezing point, acid value and kinematic viscosity are determined according to GB 25199-2017 .

Embodiment 2

[0026] The method for reducing the cold filter point of biofuel includes the following preparation methods:

[0027] 1) get fatty acid methyl ester, add 8% isopropanol of fatty acid methyl ester weight, 0.5% triacetin, 0.8% dicyclohexylamine nitrite;

[0028] 2) Put all the raw materials into a high-speed mixer, and at 55°C, stir at a high speed of 550r / min for 22min;

[0029] 3) Under the frequency of 85kHz and the temperature of 50℃, ultrasonic treatment for 20min is enough.

[0030] It is determined that the cold filter point of the biofuel in this example is -46°C, the freezing point is -52°C, and the kinematic viscosity is (20°C) 3.85mm 2 / s, the acid value is 0.26mgKOH / g, after 15 months, the acid value is 0.54mgKOH / g, the cold filtration point is determined according to JB / T 11943-2014, and the freezing point, acid value and kinematic viscosity are determined according to GB 25199-2017 .

Embodiment 3

[0032] The method for reducing the cold filter point of biofuel includes the following preparation methods:

[0033] 1) get fatty acid methyl ester, add 10% isopropanol of fatty acid methyl ester weight respectively, 0.3% triacetin, 1.4% dicyclohexyl nitrite;

[0034] 2) Put all the raw materials into the high-speed mixer, and at 50°C, stir at a high speed of 600r / min for 18min;

[0035] 3) Under the frequency of 95kHz and the temperature of 45℃, ultrasonic treatment for 25min is enough.

[0036] It is determined that the cold filter point of the biofuel in this example is -42°C, the freezing point is -48°C, and the kinematic viscosity is (20°C) 3.23mm 2 / s, the acid value is 0.32mgKOH / g, after 15 months, the acid value is 0.62mgKOH / g, the cold filtration point is determined according to JB / T 11943-2014, and the freezing point, acid value and kinematic viscosity are determined according to GB 25199-2017 .

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Abstract

The invention belongs to the technical field of fuel preparation and in particular relates to a method for reducing a cold filter plugging point of bio-fuel. The preparation method comprises the following steps: 1) taking fatty acid methyl ester and adding isopropyl alcohol which accounts for 5 to 10 percent of the weight of the fatty acid methyl ester, glyceryl triacetate which accounts for 0.3 to 0.8 percent of the weight of the fatty acid methyl ester and dicyclohexylaminenitrite which accounts for 0.2 to 1.4 percent of the weight of the fatty acid methyl ester respectively; 2) putting allthe raw materials into a high-speed mixing machine and stirring for 18 to 26min at 50 to 60 DEG C at a high speed; 3) carrying out ultrasonic treatment for 15 to 25min under the frequency of 75 to 95kHz. The bio-fuel prepared by the method has a relatively low cold filter plugging point and can be used for replacing diesel oil; an engine does not need to be replaced.

Description

technical field [0001] The invention belongs to the technical field of fuel preparation, and particularly relates to a method for reducing the cold filter point of biofuel. Background technique [0002] In today's rapid economic development, automobiles have become an indispensable product in people's lives, but some problems that follow are becoming more and more serious. pollution. In order to solve the problem of the increasingly depletion of petroleum energy, biofuels have become the most potential new alternative renewable energy as fuel oil alternative fuels. It also belongs to the biological clean new energy encouraged by the country during the "Eleventh Five-Year Plan" period. [0003] However, in the prior art, the cetane number of the biofuel is not high enough, the calorific value is relatively low, the stability is not good enough, and the shelf life is relatively short, which greatly limits the use of the biofuel. In addition, the low-temperature flow perform...

Claims

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Application Information

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IPC IPC(8): C10L1/02C10L1/182C10L1/19C10L1/23
CPCC10L1/02C10L1/1824C10L1/1915C10L1/231C10L2200/0476C10L2290/34
Inventor 蒙呈星
Owner 丰泰能源有限公司
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