Device and method for continuously esterifying kitchen waste grease by using glycerol

A kind of kitchen and oily ester technology, which is applied in the direction of fatty acid esterification, petroleum industry, biofuel, etc., can solve problems such as equipment corrosion, environmental pollution, and impact on product quality, and achieve reduced desulfurization costs, low energy consumption, and increased additional costs. value effect

Inactive Publication Date: 2021-10-29
HEBEI JINGU RECYCLING RESOURCES DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when producing biodiesel from kitchen waste oils and esters on the market, acid-catalyzed esterification is required first. Acid catalysis will produce acid residues that will carbonize the oil, making the color of biodiesel produc

Method used

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  • Device and method for continuously esterifying kitchen waste grease by using glycerol
  • Device and method for continuously esterifying kitchen waste grease by using glycerol

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] Using crude glycerol to be used to ester elut elut, including crude glycerol tank 1, kitchen waste oil ester storage tank 2, multi-stage esteride, multi-stage static mixer and esterified kitchen waste oil Ester storage tank 5;

[0035] The crude glycerol tank 1 and the kitchen waste oil ester tank 2 are connected to a multi-stage static mixer;

[0036] The multi-stage static mixer is sequentially connected to the multi-stage esteride, and the esterified kitchen was discarded.

[0037] In one embodiment, the multi-stage esterate includes a primary esteride 31, a secondary esteride 32, a tripartate kettle 33, and a four-stage esteride 34;

[0038] The kitchen waste oil ester storage tank 2 is sequentially connected to the primary esteride 31, the secondary esteride 32, the triphell 33, the four-stage esteride 34;

[0039] The upper end of the above each esterified kettle is provided with a condensed tube having a vacuum cooling device.

[0040] In one embod...

Example Embodiment

[0049] Example 2

[0050] Apparatus with crude glycerol continuous esterification of kitchen was used as in Example 1;

[0051] Method for using crude glycerol continuous esterification of kitchen, including the following steps:

[0052] According to the mass ratio of the crude glycerol and kitchen waste oil or ester 2: 100, the plate of crude glycerol tank 1 is heated to 150 ° C in the crude glycerol storage tank 1. The mixing is uniformly mixed by the pipe to enter the primary static mixer 41 after mixing in the first stage esteride 31 at a rate of 90 min at a rate of 90 min, and the pressure is controlled by the vacuum cooling device to obtain a mixture. I;

[0053] According to the mass ratio of crude glycerol and mixed liquid I of 2: 100, a mixture of 150 ° C is pumped into the secondary static mixer 42 in the secondary static mixer 42 in the secondary static mixer 42. 32 is heated to 180 ° C and stirred at 30R / min at a rate of 90min, and the pressure is controlled by the v...

Example Embodiment

[0056] Example 3

[0057] Apparatus with crude glycerol continuous esterification of kitchen was used as in Example 1;

[0058] Method for using crude glycerol continuous esterification of kitchen, including the following steps:

[0059] According to the mass ratio of the crude glycerin and kitchen waste oil or alcohol, the mass ratio of the crude glycerol tank 1 and the kitchen waste oil in the kitchen waste oil are heated to 165 ° C. The mixing is uniformly mixed by the pipe to enter the primary static mixer 41 after mixing and uniformly mixed by the conduit at 45 r / min at a rate of 90 min, and the pressure is controlled by the vacuum cooling device to obtain a mixture. I;

[0060] According to the mass ratio of crude glycerol and mixed liquid I of 3: 100, a mixture of 165 ° C is pumped into the secondary static mixer 42 by circulating pump I6 into the secondary static mixer 42. 32 is heated to 190 ° C and stirred at 45 r / min at a rate of 90min, and the pressure is controlle...

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PUM

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Abstract

The invention discloses a device and method for continuously esterifying kitchen waste grease by using crude glycerine. The device comprises a crude glycerine storage tank, a kitchen waste grease storage tank, a multi-stage esterification kettle, a multi-stage static mixer and an esterified kitchen waste grease storage tank, the crude glycerol storage tank and the kitchen waste grease storage tank are connected with the multi-stage static mixer; and the multi-stage static mixer is sequentially connected with the multi-stage esterification kettle and the esterified kitchen waste grease storage tank. The device disclosed by the invention is simple in structure, and the sulfur content in the kitchen waste oil ester esterified by the multi-stage esterification kettle is remarkably reduced, so that the desulfurization cost in the biodiesel production process is reduced.

Description

technical field [0001] The invention relates to the technical field of transesterification of kitchen waste oils and esters, in particular to a device and method for continuously esterifying kitchen waste oils and esters with glycerin. Background technique [0002] Kitchen waste oils and fats generally refer to all kinds of low-quality oils that exist in daily life, such as recycled cooking oil, repeatedly used frying oil, etc. The largest source of kitchen waste oils and fats is the grease traps in the sewers of large urban restaurants, long-term consumption It may cause cancer and is extremely harmful to the human body; using kitchen waste oil and ester as raw material through chemical processing to produce biodiesel with high efficiency and low cost can make kitchen waste oil and ester become a beneficial industrial resource. However, In the process of preparing biodiesel based on the principles of kitchen waste oil, acidified oil and other waste oils, how to remove free ...

Claims

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Application Information

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IPC IPC(8): C11C3/06C10L1/02
CPCC11C3/06C10L1/02Y02E50/10
Inventor 赵敏仲王子腾刘少杰褚晓萌赵松赵龙
Owner HEBEI JINGU RECYCLING RESOURCES DEV
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