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Production method of low-sulfur, no-sulfur and high-ester content bio-diesel

A biodiesel and production method technology, applied in the direction of biofuel, biological raw materials, hydrocarbon oil treatment products, etc., can solve the problems that the quality of biodiesel does not meet the national standard requirements, many side reactions, high temperature of the reaction system, etc., to prevent sulfonation And other side reactions, prevention of oil polymerization, effect of lowering reaction temperature

Inactive Publication Date: 2017-05-31
云南盈鼎生物能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The third is that the temperature of the reaction system is high, the sulfur in the catalyst will react with the double bond in the carbon chain of the fatty acid and neutral oil, methanol is easy to dehydrate to form dimethyl ether, and the oil is easy to polymerize under the catalysis of acid , the catalyst is prone to polymerization, these reactions lead to high sulfur content and low ester content in biodiesel, so that the quality of biodiesel cannot meet the national standard requirements
This leads to higher temperature in the reaction system and more side reactions

Method used

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example 1

[0025] A method for producing low-sulfur, sulfur-free, high-ester content biodiesel, characterized in that it comprises the following steps:

[0026] (1) Esterification reaction: put waste oil, methanol and catalyst into the reaction kettle, and heat to make the reaction temperature at 50°C;

[0027] (2) Real-time detection: After the reaction starts, real-time detection of the water content in the reaction system and the water content in methanol is required;

[0028] A. Detect the water content in the system: If the water content in the system is greater than 10%, separate the water-containing methanol from the system, dehydrate outside the system, and return the dehydrated methanol to the system to continue the reaction;

[0029] B. Detect the water content in methanol: separate the water-containing methanol and detect the water content in the methanol. If the water content in the methanol is greater than 10%, separate the water-containing methanol from the system, dehydr...

Embodiment 2

[0034] A method for producing low-sulfur, sulfur-free, high-ester content biodiesel, comprising the following steps:

[0035] (1) Esterification reaction: Put waste oil, methanol and catalyst into the reaction kettle, heat to make the reaction temperature at 70°C;

[0036] (2) Real-time detection: After the reaction starts, real-time detection of the water content in the reaction system and the water content in methanol is required;

[0037] A. Detect the water content in the system: If the water content in the system is greater than 10%, separate the water-containing methanol from the system, dehydrate outside the system, and return the dehydrated methanol to the system to continue the reaction;

[0038] B. Detect the water content in methanol: separate the water-containing methanol and detect the water content in the methanol. If the water content in the methanol is greater than 10%, separate the water-containing methanol from the system, dehydrate outside the system, and ...

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Abstract

The invention belongs to the fields of petroleum chemical engineering, new energy source, comprehensive utilization of waste grease, production of bio-diesel, refining chemical engineering, green chemical engineering and organic synthesis, in particular to a production method of low-sulfur, no-sulfur and high-ester content bio-diesel. The production method of the low-sulfur, no-sulfur and high-ester content bio-diesel is characterized in that the methyl alcohol with higher water content is separated from a reaction system, the water is removed separately, and the dewatering system and the reaction system are performed under two environments at different times; the reaction temperature is controlled to 50 to 70 DEG C, and the sulfonation of oil and other side effect are avoided at the premise of not sacrificing the reaction rate; after the obtained product is detected by State Petroleum Chemical Product Quality Supervision and Inspection Center (Guangdong), the sulfur content is 7.3mg / kg, the ester content is 96.6%, and the number of inspection report is No.201701398; the detection result is better than the result of Bio-diesel for Fuel Blending of Diesel Engine (BD100) (GB / T20828-2015).

Description

technical field [0001] The invention belongs to the fields of petrochemical industry, new energy, comprehensive utilization of waste oil and ester, biodiesel production, fine chemical industry, green chemical industry and organic synthesis, and specifically relates to a production method of low-sulfur, sulfur-free and high-ester content biodiesel. Background technique [0002] Biodiesel refers to fatty acid methyl ester or fatty acid ethyl ester obtained from waste animal and vegetable oil ester (fatty acid triglyceride), fatty acid and alcohol (methanol or ethanol) through esterification and transesterification. In order to realize the comprehensive utilization of resources, waste oils and esters such as waste oil, acidified oil, and swill oil are often used instead of edible oils and esters to react with methanol. The waste oil contains water, and the reaction between the waste oil and methanol requires an environment with a temperature of 70°C-110°C, and the methanol evap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/04C10G3/00C10G7/04C10L1/02
CPCC10G3/42C10G7/04C10G2300/1007C10G2400/04C10L1/02C11C3/04Y02E50/10Y02P30/20
Inventor 冀星吕勃崔建志张钰王继刚李里虎王书平冀旌语
Owner 云南盈鼎生物能源股份有限公司