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Reaction system for countercurrent continuous esterification of biodiesel

A technology of biodiesel and esterification reaction, which is applied in the direction of biofuel, fatty acid esterification, petroleum industry, etc., can solve the problems of incomplete esterification, non-continuous production, high energy consumption, etc., achieve complete and rapid reaction, and shorten the reaction time Time and energy saving effects

Inactive Publication Date: 2012-11-21
种传学 +1
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Problems solved by technology

In the prior art, the esterification reaction to generate crude fatty acid methyl esters all adopts a tank-type reaction device. While heating, stirring with a stirrer is used to promote the reaction, but because continuous production is not possible, and oil and methanol are incompatible capacity, the reaction time is long, the esterification is incomplete, and the energy consumption is high, which makes the cost of biodiesel produced high

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  • Reaction system for countercurrent continuous esterification of biodiesel

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Embodiment Construction

[0027] For specific embodiments of the present invention, refer to figure 1 , Biodiesel countercurrent continuous esterification reaction system, including raw material storage tank 1, methanol storage tank 2, first reaction tower 3, second reaction tower 4, methanol rectification tower 5, heaters 6, 7, 8, etc.

[0028] The top of the first reaction tower 3 is provided with a material inlet 34 and a methanol outlet 33 , and the bottom is provided with a reaction product outlet 35 and a methanol inlet 36 ; the inside is provided with packing 31 , and the top inside is provided with a demister 32 . The bottom of the reaction tower is provided with a separation liquid storage tank of the separation system, which includes a slanted baffle 38 located below the distributor 37, the reaction product outlet 35 is arranged on the side wall, and the by-product outlet 39 is arranged on the bottom surface.

[0029] The structure of the second reaction tower 4 is the same as that of the fir...

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Abstract

The invention discloses a reaction system for countercurrent continuous esterification of biodiesel. The system comprises a raw material storage tank, a methanol storage tank, at least one first reaction tower and at least one second reaction tower, and at least one separator connected between a reaction product outlet of the first reaction tower and a material inlet of the second reaction tower. The raw material storage tank is connected to a catalyst storage tank and a material inlet at the upper part of the first reaction tower; the methanol storage tank is connected to a methanol inlet at a lower part of the second reaction tower; and a methanol outlet at the top of the second reaction tower is connected to a methanol inlet at the bottom of the first reaction tower. The invention realizes countercurrent esterification of biodiesel, and real-time reaction and separation of glycerol, water and methanol, greatly shortens the reaction time, and achieves thorough reaction.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a countercurrent continuous esterification reaction system for biodiesel, which is especially suitable for the esterification reaction in the production process of biodiesel. Background technique [0002] Biodiesel refers to a renewable diesel fuel that can replace petrochemical diesel oil, which is made from oil crops, wild oil plants, engineering microalgae and other aquatic vegetable oils, animal oils, and catering waste oils through transesterification processes. Biodiesel is a kind of biomass energy, which is a mono-alkyl ester of long-chain fatty acid obtained from biomass by pyrolysis and other technologies. Biodiesel is a mixture of complex organic components with extremely high oxygen content. These mixtures are mainly organic compounds with large molecular weight, including almost all kinds of oxygen-containing organic compounds, such as: ethers, esters, aldehydes, keto...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/04C10L1/02
CPCY02E50/13Y02E50/10
Inventor 种传学刘红军李新方高登征高崇阳王宁黄思银张剑锋
Owner 种传学
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