CN100503533C - Methyl esterification in biologic diesel oil production and methanol continuously purification device - Google Patents

Methyl esterification in biologic diesel oil production and methanol continuously purification device Download PDF

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Publication number
CN100503533C
CN100503533C CNB2007100088690A CN200710008869A CN100503533C CN 100503533 C CN100503533 C CN 100503533C CN B2007100088690 A CNB2007100088690 A CN B2007100088690A CN 200710008869 A CN200710008869 A CN 200710008869A CN 100503533 C CN100503533 C CN 100503533C
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methanol
rectifying tower
carbinol
connects
methyl alcohol
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CN101037376A (en
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叶活动
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Longyan Zhuoyue New Energy Co., Ltd.
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LONGYAN ZHUOYUE NEW ENERGY DEVELOPMENT Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00Technologies relating to oil refining and petrochemical industry
    • Y02P30/20Technologies relating to oil refining and petrochemical industry using bio-feedstock

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Abstract

The invention discloses an apparatus for producing a biologic diesel fuel methyl esterification and carbinol continuously purifying, including biologic diesel fuel esterifying vessel, rectifying vessel, carbinol rectifying tower, carbinol condensator and carbinol cooler. The lower gas inlet of the rectifying tower connects to the upper gas outlet of the esterifying vessel by pipes. The gas inlet at another side of the lower rectifying tower connects to the gas outlet of the rectifying vessel and the bottom stream connects to the return nozzle. The rectifying tower top gas outlet connects to the inlet of the condensator by pipes. The outlet pipes are divided into two paths, of which one connects to the upper return nozzle, the other connects to the inlet of the cooler. The outlet pipes of the cooler are divided into two paths of which one enters into the esterifying vessel, the other goes to the carbinol storage groove. The apparatus attains the continuous purification and direct recycle, lowers the industrial cooling water and decreases the carbinol volatilization loss due to excessive producing steps and obviously reduces the cost of the biologic diesel fuel.

Description

Produce biodiesel oil methyl esterizing and methanol continuously purification device
One, technical field
The present invention relates to the production equipment of organic chemical industry's product biofuel (being fatty acid methyl ester), be specifically related to produce biodiesel oil methyl esterizing and methanol continuously purification device.
Two, background technology
In the existing production of biodiesel, methyl alcohol is mainly collected by the collection device of being made up of distiller, rectifier, pipeline and valve etc.During actual production, reaction masses such as raw material such as acidifying oil or waste oils and fats and catalyzer, excess liq methyl alcohol are added in the reactor, make raw material carry out esterification reaction of organic acid, the water that generates in methyl alcohol that evaporates in the esterification reaction of organic acid process and the reaction process goes out the mixed solution of superfluous methyl alcohol and water through condenser condenses; Or when replacing liquid methanol to carry out production of biodiesel with gas-phase methanol, take the water that generates in the reaction process out of by gas-phase methanol, become the mixed solution of methyl alcohol and water then through condenser condenses, again the mixed solution of methyl alcohol and water is gathered into satisfactory methyl alcohol behind rectifier.There is following defective in this methyl alcohol collection device: the one, and the methanol aqueous solution concentration that distills out is low, need be after passing through rectification and purification on the rectifying device, just can be reused for the reaction of biodiesel oil methyl esterizing, the condensation of methanol aqueous solution elder generation reheats rectifying again, and the heat energy utilization rate is low; The 2nd, multiple condensation need consume a large amount of industrial collings; The 3rd, because of production link too much causes methyl alcohol volatilization loss.Therefore, the production cost and the environmental stress of biofuel have obviously been increased.
Three, summary of the invention
Energy-conservation in the esterification process when the purpose of this invention is to provide a kind of production of biodiesel, water saving, production biodiesel oil methyl esterizing and methanol continuously purification device that use ratio of methanol is high are to reduce the biofuel product cost.
For realizing above purpose, the present invention produces biodiesel oil methyl esterizing and methanol continuously purification device, comprise esterifying kettle, rectifying still, methanol rectifying tower, methanol condenser and methyl alcohol water cooler, described methanol rectifying tower lower side steam inlet and biofuel esterifying kettle top steam outlet pipe connection, another side, methanol rectifying tower bottom steam inlet respectively is connected with refluxing opening with the steam outlet of rectifying still respectively by pipeline with the bottom liquid head piece, methanol rectification top of tower steam outlet enters the mouth with pipe connection to methanol condenser, the methanol condenser outlet conduit is divided into two-way, one the tunnel takes back methanol rectifying tower top refluxing opening, another road is connected to methyl alcohol water cooler inlet, methyl alcohol cooler outlet pipeline is divided into two-way again, one the tunnel enters the biofuel esterifying kettle, and another road passes to the methyl alcohol storage tank.
When using technique scheme, owing to made full use of the heat of the methanol steam that produces in the biodiesel oil methyl esterizing reaction, avoid in the existing production of biodiesel methanol aqueous solution elder generation condensation calorific loss of rectifying again, improved the heat energy utilization rate, reach energy-saving and cost-reducing purpose, simultaneously can save a large amount of industrial collings, and reduce the volatilization loss that too much causes methyl alcohol because of production link, thereby obviously reduce the production cost of biofuel because of having reduced methanol-water condensation operation.In addition, the present invention directly enters rectifying tower to the methanol steam of producing in the biodiesel oil methyl esterizing process, by regulating the rectifying tower reflux ratio, the control tower top temperature, the rectifying methanol purity of coming out is reached more than 95%, satisfy the specification of quality of biodiesel oil methyl esterizing, realize that biodiesel oil methyl esterizing process methyl alcohol is purified continuously and the purpose of direct recycle.
Four, description of drawings
Fig. 1 is that the present invention produces biodiesel oil methyl esterizing and methanol continuously purification device synoptic diagram.
Five, specific embodiment
Below in conjunction with Fig. 1 and embodiment the present invention is described in further detail.
The present invention shown in Figure 1 produces biodiesel oil methyl esterizing and methanol continuously purification device, comprise esterifying kettle 4, rectifying still 1, methanol rectifying tower 2, methanol condenser 3 and methyl alcohol water cooler 5, described methanol rectifying tower 2 lower side steam inlets and biofuel esterifying kettle 4 top steam outlet pipe connection, be connected respectively to the steam outlet and the refluxing opening of rectifying still 1 between methanol rectifying tower 2 bottom another side steam inlet and the bottom liquid head piece by pipeline, methanol rectifying tower 2 top steam outlets enter the mouth with pipe connection to methanol condenser 3, methanol condenser 3 outlet conduits are divided into two-way, one the tunnel takes back methanol rectifying tower 2 top refluxing openings, another road is connected to methyl alcohol water cooler 5 inlets, methyl alcohol water cooler 5 outlet conduits are divided into two-way again, one the tunnel enters biofuel esterifying kettle 4, and another road passes to the methyl alcohol storage tank.
During actually operating, in biofuel reactor 4, have and feed gas-phase methanol or liquid phase methyl alcohol in the material of certain temperature, the methanol steam that produces behind the esterification reaction of organic acid directly enters rectifying tower 2, the reflux ratio of regulating rectifying tower 2 by rectifying still 1 is with the control tower top temperature, the rectifying methanol purity of coming out is reached more than 95%, methyl alcohol after the rectifying is through condenser 3 condensations, and qualified methyl alcohol enters storage tank or returns reactor 4 direct recycles after 5 coolings of methyl alcohol water cooler again; Remaining methanol-water vapour-liquid part is at rectifying tower 2 and the continuous smart gold-plating of rectifying still 1 circulation.

Claims (1)

1, a kind of production biodiesel oil methyl esterizing and methanol continuously purification device, comprise esterifying kettle (4), rectifying still (1), methanol rectifying tower (2), methanol condenser (3) and methyl alcohol water cooler (5), it is characterized in that: described methanol rectifying tower (2) lower side steam inlet and biofuel esterifying kettle (4) top steam outlet pipe connection, methanol rectifying tower (2) another side, bottom steam inlet respectively is connected with refluxing opening with the steam outlet of rectifying still (1) respectively by pipeline with the bottom liquid head piece, methanol rectifying tower (2) top steam outlet enters the mouth with pipe connection to methanol condenser (3), methanol condenser (3) outlet conduit is divided into two-way, one the tunnel takes back methanol rectifying tower (2) top refluxing opening, another road is connected to methyl alcohol water cooler (5) inlet, methyl alcohol water cooler (5) outlet conduit is divided into two-way again, one the tunnel enters biofuel esterifying kettle (4), and another road passes to the methyl alcohol storage tank.
CNB2007100088690A 2007-04-19 2007-04-19 Methyl esterification in biologic diesel oil production and methanol continuously purification device Active CN100503533C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100088690A CN100503533C (en) 2007-04-19 2007-04-19 Methyl esterification in biologic diesel oil production and methanol continuously purification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100088690A CN100503533C (en) 2007-04-19 2007-04-19 Methyl esterification in biologic diesel oil production and methanol continuously purification device

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CN101037376A CN101037376A (en) 2007-09-19
CN100503533C true CN100503533C (en) 2009-06-24

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465058A (en) * 2010-11-04 2012-05-23 朱建军 Production process for preparing biodiesel
CN102153445A (en) * 2011-03-14 2011-08-17 江苏恒顺达生物能源有限公司 Gaseous phase methanol recycling technology
CN102311875A (en) * 2011-08-18 2012-01-11 厦门卓越生物质能源有限公司 biodiesel methyl esterification dealcoholysis device
CN102839056B (en) * 2012-09-18 2014-05-14 中国科学院广州能源研究所 Stepped recovery and purification method and device of biodiesel methanol
CN107557168A (en) * 2017-10-13 2018-01-09 安徽天意环保科技有限公司 Thick methyl esters dealcoholysis modernization system

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Assignee: Xiamen Zhuoyue Biomass Energy Co., Ltd.

Assignor: Longyan Zhuoyue New Energy Development Co., Ltd.

Contract record no.: 2011350000074

Denomination of invention: Methyl esterification in biologic diesel oil production and methanol continuously purification device

Granted publication date: 20090624

License type: Exclusive License

Open date: 20070919

Record date: 20110504

C56 Change in the name or address of the patentee
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Address after: 364000 Tieshan Development Zone, Xinluo District, Fujian, Longyan

Patentee after: Longyan Zhuoyue New Energy Co., Ltd.

Address before: 364000 Tieshan Development Zone, Xinluo District, Fujian, Longyan

Patentee before: Longyan Zhuoyue New Energy Development Co., Ltd.