A method of production of glycerin fuel

A production method and technology of glycerin, applied in fuel, liquid carbon-containing fuel, petroleum industry, etc., can solve a large amount of acid liquid, acid residue and other problems, achieve the effect of lowering the freezing point, increasing the cetane number, and avoiding pollution problems

Active Publication Date: 2016-06-01
HENAN HI TECH KINGDO IND COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production method of glycerin fuel, which can overcome the defect that the current production method will produce a large amount of acid liquid and acid residue, and can also use the by-product glycerin as a whole to save energy

Method used

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  • A method of production of glycerin fuel
  • A method of production of glycerin fuel
  • A method of production of glycerin fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Raw material: gutter oil

[0041] 1. The pretreatment steps of raw oil are as follows:

[0042](1) Acid refining: the raw material oil is pumped into the heater by the raw material pump to preheat to 65-70°C and then enters the mixing tank, adding 0.2% phosphoric acid of the raw material oil quality to stir and condition, and then naturally cooled to below 40°C;

[0043] (2) Flocculation and sedimentation: Heat the hydrated oil to about 70°C, mix polyaluminum chloride (PAC) with 1% waste oil mass and polyacrylamide (PAM) with 0.5 waste oil mass with 5% waste oil mass After dissolving in hot water (80-90°C), add it to the mixing tank, stir and mix with the waste oil for 10 minutes, transfer to the settling tank and let it settle for about 1 hour;

[0044] (3) Separation and dehydration: the lower layer of colloid is released, and the upper layer of oil is dehydrated by a thin film evaporator to a water content of less than 0.1%;

[0045] (4) Filtration: The dehydrated ...

Embodiment 2

[0072] Raw material: hogwash oil

[0073] 1. The pretreatment steps of raw oil are as follows:

[0074] (1) Acid refining: the raw material oil is pumped into the heater by the raw material pump to preheat to 65-70°C and then enters the mixing tank, adding 0.2% phosphoric acid of the raw material oil quality to stir and condition, and then naturally cooled to below 40°C;

[0075] (2) Flocculation and sedimentation: Heat the hydrated oil to about 70°C, mix polyaluminum chloride (PAC) with 2% of the mass of waste oil and polyacrylamide (PAM) with 1% of the mass of waste oil and 10% of the mass of waste oil After dissolving about % hot water (80-90°C), add it to the mixing tank, fully stir and mix with the waste oil for 10 minutes, transfer to the settling tank and let it settle for about 1 hour;

[0076] (3) Separation and dehydration: the lower layer of colloid is released, and the upper layer of oil is dehydrated by a thin film evaporator to a water content of less than 0.1%;...

Embodiment 3

[0103] Raw material: acidified oil

[0104] 1. The pretreatment steps of raw oil are as follows:

[0105] 1) Acid refining: the raw material oil is pumped into the heater by the raw material pump to preheat to 65-70°C and then enters the mixing tank, adding 0.2% phosphoric acid of the raw material oil quality to stir and condition, and then naturally cooled to below 40°C;

[0106] 2) Flocculation and sedimentation: heat the hydrated oil to about 70°C, mix polyaluminum chloride (PAC) with 3% of waste oil mass, polyacrylamide (PAM) with 2% waste oil mass and 15% waste oil mass After dissolving in hot water (80-90°C), add it to the mixing tank, stir and mix with the waste oil for 10 minutes, transfer to the settling tank and let it settle for about 1 hour;

[0107] 3) Separation and dehydration: the lower layer of colloid is released, and the upper layer of oil is dehydrated by a thin film evaporator to a water content of less than 0.1%;

[0108] 4) Filtration: The dehydrated o...

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Abstract

The invention belongs to the field of biomass energy and particularly relates to a production method of glycerin fuel. The production method comprises the following steps: pretreating waste oil serving as a raw material, adding glycerin for reacting, and then adding lower carbon alcohol for carrying out ester exchange so as to obtain the glycerin fuel. According to the production method, the glycerin reacts with triacylglycerol and free fatty acid in the raw material oil so as to generate monoglyceride and diacylglycerol, so that the content of the free fatty acid in the raw material oil can be effectively reduced, so that the raw material oil can meet the requirements of production of the glycerin fuel through ester exchange reaction, and the waste acid water emission and pollution caused by conventional sulfuric acid catalyzed methanol esterification are avoided; in addition, and glycerin which is an ester exchange byproduct and cannot be used as fuel is converted into glycerol ketal ester which serves as pour point depressant to be mixed with fatty acid lower carbon alcohol ester, so that the condensation point of the glycerin fuel is reduced, and the cetane number of the fuel is increased.

Description

technical field [0001] The invention belongs to the field of biomass energy, in particular to a production method of glycerol fuel. Background technique [0002] The main component of glycerin fuel is low-carbon alcohol esters of fatty acids produced by transesterification of glycerin fatty acid esters and short-chain alcohols (such as methanol and ethanol). At present, domestic feasible raw materials are various waste oils such as waste oil, hog oil, and acidified oil. These raw materials have complex sources, poor quality, and generally contain more free fatty acids and saturated fatty acids. The high content of free fatty acids makes transesterification Incomplete, low yield, high cost; too high saturated fatty acid content leads to high freezing point of the produced glycerin fuel, which is not suitable for winter use. [0003] Aiming at the problem of high free fatty acid content in raw materials, sulfuric acid catalyzed methanol esterification is traditionally used to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02C10L1/19C10L1/183C10L1/185C10L1/16C11C3/10C11B3/00C11B3/10C11B3/04
Inventor 管有云李庆陈建琦季祥崔勇项东方娄源民张少敏
Owner HENAN HI TECH KINGDO IND COMPANY
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