CN101993778A - Multilayer evaporator-based system and process for removing methanol from biodiesel - Google Patents
Multilayer evaporator-based system and process for removing methanol from biodiesel Download PDFInfo
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- CN101993778A CN101993778A CN2010105455715A CN201010545571A CN101993778A CN 101993778 A CN101993778 A CN 101993778A CN 2010105455715 A CN2010105455715 A CN 2010105455715A CN 201010545571 A CN201010545571 A CN 201010545571A CN 101993778 A CN101993778 A CN 101993778A
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- heating plate
- multilayer
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- vaporizer
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003225 biodiesel Substances 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 239000002994 raw material Substances 0.000 claims abstract description 39
- 239000006200 vaporizer Substances 0.000 claims description 51
- 239000002551 biofuel Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000012453 solvate Substances 0.000 claims description 5
- 230000001464 adherent effect Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
- 230000005574 cross-species transmission Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000998 batch distillation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a multilayer evaporator-based system and a process for removing methanol from biodiesel. The system comprises a multilayer evaporator, and 6 to 12 layers of heating plates are arranged in the multilayer evaporator, wherein the overflowed liquid of the heating plate of the upper layer can flow into the heating plate of the next layer; heating coils and process liquid thermometers are arranged in the heating plates; the multilayer evaporator is provided with a liquid inlet facing the heating plate of the upper layer, and a delivery pump is connected with the liquid inlet through a raw material control valve and a liquid flow meter; the bottom of the multilayer evaporator is provided with a liquid outlet; the top of the multilayer evaporator is provided with a gas outlet, and the gas outlet is connected with a condenser; and the heating coils can be used for feeding and discharging a heating medium. The system has the advantages that: by using the characteristic of independent temperature control on each layer, the methanol in the raw material is completely removed at one time from top to bottom, so the continuous operation process of removing the methanol from the biodiesel can be implemented, and the purposes of short raw material heating time and simple and feasible operation are fulfilled.
Description
Technical field
The present invention relates to evaporation and separate and the working method field, especially a kind ofly remove the system and the technology of methyl alcohol from biofuel based on the multilayer vaporizer.
Background technology
Preparing biofuel with chemical method, is to be got through the fat exchange by triglyceride level and methyl alcohol, and after reaction finished, excessive methyl alcohol need remove.Therefore the boiling-point difference of biofuel and methyl alcohol can remove methyl alcohol with the method for evaporation apart from generally greater than 250 ℃ from biofuel.Commonly used is to adopt the batch distillation method, and a collection of reaction solution is added in the heating container heating operation under normal pressure or negative pressure, changes a batch operation again after methyl alcohol being taken off to the greatest extent.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, but a kind of operate continuously is provided remove the system and the technology of methyl alcohol based on the multilayer vaporizer from biofuel.
The present invention solves the technical scheme that its technical problem adopts: thisly remove the system of methyl alcohol based on the multilayer vaporizer from biofuel, comprise the multilayer vaporizer, be provided with 6-12 layer heating plate in the multilayer vaporizer, wherein the heating plate of individual layer is a circle of being located at central authorities, double-deck heating plate is adherent annular, the liquid spillover position of upper strata heating plate is corresponding with the inflow position of following one deck heating plate, is provided with the heating coil and the process liquid thermometer of the turnover that is used for heating medium in the heating plate; The multilayer vaporizer is provided with the liquid-inlet facing to the upper strata heating plate, transferpump is connected with liquid-inlet with liquid meter by the raw material control valve, the bottom of multilayer vaporizer is provided with liquid exit, and the top of multilayer vaporizer is provided with pneumatic outlet, and pneumatic outlet is connected with condenser.
As preferably, each layer heating coil is connected with the thermal oil control valve and the thermal oil thermometer of control thermal oil turnover.
As preferably, heating coil is connected with water vapour control valve and the pressure warning unit that control water vapour enters, and is connected with the trap that the water supply steam is discharged.
Of the present invention this based on the multilayer vaporizer from biofuel remove methyl alcohol system remove methanol technics, step is as follows:
1, raw material is entered the upper strata heating plate of multilayer vaporizer by transferpump, raw material control valve and liquid-inlet, raw material is filled it up with at the upper strata heating plate and is successively flowed downward after overflowing, and stops charging until filling it up with to lower floor's heating plate;
2, the raw material in each layer heating plate is heated, when phlegma occurring in the condenser, additional raw material makes the basic full of liquid of each layer heating plate;
3, when the process liquid thermometer displays temperature in lower floor's heating plate is 100 ℃～120 ℃, keep continuously feeding, the indicating value of keeping each layer process liquid-in-glass thermometer is from 64 ℃～120 ℃ Gradient distribution;
4, the liquid that overflows from lower floor's heating plate is the coarse biodiesel that purifies behind the methyl alcohol, is collected into the coarse biodiesel storage tank after leaving liquid exit, and the methanol solvate that obtains from condenser then is collected into the methyl alcohol storage tank.
As preferably, open the thermal oil control valve gradually, the raw material in each layer heating plate is heated; And the aperture of regulating each thermal oil control valve according to the fluid temperature of each layer heating plate, with the indicating value of keeping each layer process liquid-in-glass thermometer Gradient distribution from 64 ℃～120 ℃.
As preferably, open the water vapour control valve gradually, the raw material in each layer heating plate is heated; The aperture of regulating each water vapour control valve according to the fluid temperature of each layer heating plate is with the indicating value of keeping each the layer process liquid-in-glass thermometer Gradient distribution from 64 ℃～120 ℃.
The effect that the present invention is useful is: utilize the characteristics of every layer of independent temperature control, raw material is disposable from top to down to be taken off methyl alcohol to the greatest extent, therefore can realize that biofuel removes the continuous operation process of methyl alcohol, reaches short, the easy to operation purpose of raw material warm-up time.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Description of reference numerals: transferpump 1, raw material control valve 2, liquid meter 3, multilayer vaporizer 4, liquid-inlet 5, heating plate 6, upper strata heating plate 6-1, the heating plate 6-2 of lower floor, liquid exit 8, pneumatic outlet 9, condenser 10, thermal oil control valve 11, heating coil 12, thermal oil thermometer 13, process liquid thermometer 14, water vapour control valve 15, pressure warning unit 16, trap 17.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment 1: as Fig. 1, thisly remove the system of methyl alcohol from biofuel based on the multilayer vaporizer, comprise multilayer vaporizer 4, be provided with 6 layers of heating plate 6 in the multilayer vaporizer, wherein the heating plate 6 of individual layer is circular, double-deck heating plate 6 is adherent annular, to guarantee to flow into down one deck after liquid overflows in every layer of heating plate 6, be provided with heating coil 12 and process liquid thermometer 14 in the heating plate 6, multilayer vaporizer 4 is provided with the liquid-inlet 5 facing to upper strata heating plate 6-1, transferpump 1 is connected with liquid-inlet 5 with liquid meter 3 by raw material control valve 2, the bottom of multilayer vaporizer 4 is provided with liquid exit 8, the top of multilayer vaporizer 4 is provided with pneumatic outlet 9, and pneumatic outlet 9 is connected with condenser 10, and heating coil 12 is connected with thermal oil control valve 11 and the thermal oil thermometer 13 that the control thermal oil passes through.
That utilizes above system removes the technology of methyl alcohol based on the multilayer vaporizer from biofuel, the steps include: one, raw material entered the upper strata heating plate 6-1 of multilayer vaporizer 4 by transferpump 1, raw material control valve 22 and liquid-inlet 5, raw material is filled it up with at upper strata heating plate 6-1 and is successively flowed downward after overflowing, and stops charging until filling it up with to the heating plate 6-2 of lower floor; Two, open thermal oil control valve 11 gradually, the raw material in each layer heating plate 6 is heated, thermal oil returns thermo oil boiler after by heating coil 12; Three, when phlegma occurring in the condenser 10, suitably replenish raw material and make each layer heating plate 6 basic fulls of liquid; Four, when process liquid thermometer 14 displays temperatures among the heating plate 6-2 of lower floor are 100 ℃～120 ℃, can keep continuously feeding, flow is relevant with the diameter of multilayer vaporizer 4, as multilayer vaporizer 4 for a diameter of the housing DN600, the processing flow of process liquid be the 08-1 ton/hour; For diameter of the housing is the multilayer vaporizer of DN2000, the processing flow of process liquid be the 8.9-11 ton/hour, and the aperture of in time regulating each thermal oil control valve 11 according to the fluid temperature of each layer heating plate 6, and monitor with thermal oil thermometer 13, with the indicating value of keeping each layer process liquid-in-glass thermometer approximately from 64 ℃～120 ℃ Gradient distribution, promptly the first layer 64-66 ℃, second layer 66-68 ℃, the 3rd layer 68-75 ℃, the 4th layer 75-85 ℃, layer 5 85-100 ℃, layer 6 100-120 ℃; Five, the liquid that overflows from the heating plate 6-2 of lower floor is the coarse biodiesel that purifies behind the methyl alcohol, is collected into the coarse biodiesel storage tank after leaving liquid exit 8, and the methanol solvate that obtains from condenser then can be collected into the methyl alcohol storage tank and return reaction process and apply mechanically.
Contain of the conveying of the biodiesel raw material of methyl alcohol by pump, raw material control valve 2 is controlled certain flow under the demonstration of liquid meter 3, enter the liquid-inlet 5 of multilayer vaporizer, raw material at first flows in the superiors, then successively flows downward, and raw material is heated equably in each layer, methyl alcohol vaporization in the raw material, after the orlop of flowing through, methyl alcohol takes off to the greatest extent, collects to the coarse biodiesel storage tank.The heating tube 6 of each layer all is provided with thermal oil separately and imports and exports, the size of thermal oil dosage is controlled by thermal oil control valve 11, from top to bottom each layer fluid temperature rises gradually, undermost fluid temperature is controlled at 100-120 ℃, and the size of each layer thermal oil control valve 11 apertures is judged according to process liquid thermometer 14 indicating values and thermal oil thermometer 13 in each layer.The methyl alcohol that evaporates that is heated leads to condenser 10 from multilayer vaporizer 4 top gas outlet 9, condensed methanol solvate then can be back in the transesterification reaction, exports 8 effusive liquid for can not detecting the coarse biodiesel of methyl alcohol from multilayer vaporizer 4 bottom liquids.
Embodiment 2: as Fig. 2, thisly remove the system of methyl alcohol from biofuel based on the multilayer vaporizer, comprise multilayer vaporizer 4, be provided with 6 layers of heating plate 6 in the multilayer vaporizer, wherein the heating plate 6 of individual layer is circular, double-deck heating plate 6 is adherent annular, to guarantee to flow into down one deck after liquid overflows in every layer of heating plate 6, be provided with heating coil 12 and process liquid thermometer 14 in the heating plate 6, multilayer vaporizer 4 is provided with the liquid-inlet 5 facing to upper strata heating plate 6-1, transferpump 1 is connected with liquid-inlet 5 with liquid meter 3 by raw material control valve 2, the bottom of multilayer vaporizer 4 is provided with liquid exit 8, the top of multilayer vaporizer 4 is provided with pneumatic outlet 9, pneumatic outlet 9 is connected with condenser 10, heating coil 12 is connected with water vapour control valve 15 and the pressure warning unit 16 that control water vapour enters, and is connected with the trap 17 that the water supply steam is discharged.
That utilizes above system removes the technology of methyl alcohol based on the multilayer vaporizer from biofuel, the steps include: one, raw material entered the upper strata heating plate 6-1 of multilayer vaporizer 4 by transferpump 1, raw material control valve 22 and liquid-inlet 5, raw material is filled it up with at upper strata heating plate 6-1 and is successively flowed downward after overflowing, and stops charging until filling it up with to the heating plate 6-2 of lower floor; Two, open water vapour control valve 15 gradually, the raw material in each layer heating plate 6 is heated, water vapour passes through heating coil 12 after trap 17 is discharged; Three, when phlegma occurring in the condenser 10, suitably replenish raw material and make each layer heating plate 6 basic fulls of liquid; Four, when process liquid thermometer 14 displays temperatures among the heating plate 6-2 of lower floor are 100 ℃～120 ℃, can keep continuously feeding, flow is relevant with the diameter of multilayer vaporizer 4, as multilayer vaporizer 4 for a diameter of the housing DN600, the processing flow of process liquid be the 08-1 ton/hour; For diameter of the housing is the multilayer vaporizer of DN2000, the processing flow of process liquid be the 8.9-11 ton/hour, and the aperture of in time regulating each water vapour control valve 15 according to the fluid temperature of each layer heating plate 6, and monitor with pressure warning unit 17, with the indicating value of keeping each layer process liquid-in-glass thermometer approximately from 64 ℃～120 ℃ Gradient distribution, promptly the first layer 64-66 ℃, second layer 66-68 ℃, the 3rd layer 68-75 ℃, the 4th layer 75-85 ℃, layer 5 85-100 ℃, layer 6 100-120 ℃; Five, the liquid that overflows from the heating plate 6-2 of lower floor is the coarse biodiesel that purifies behind the methyl alcohol, is collected into the coarse biodiesel storage tank after leaving liquid exit 8, and the methanol solvate that obtains from condenser then can be collected into the methyl alcohol storage tank and return reaction process and apply mechanically.
Embodiment 3: a kind ofly remove the system and the technology of methyl alcohol based on the multilayer vaporizer from biofuel, be provided with 12 layers of heating plate in its multilayer vaporizer 4 of using, and when continuously feeding, keep each layer process fluid temperature from 64 ℃～120 ℃ Gradient distribution, promptly every layer is followed successively by 64-65 ℃, 65-66 ℃, 66-67 ℃, 67-69 ℃, 69-71 ℃, 71-73 ℃, 73-75 ℃, 75-77 ℃, 77-79 ℃, 79-81 ℃, 81-84 ℃, 84-87 ℃, 87-90 ℃, 90-93 ℃, 93-96 ℃, 96-99 ℃, 99-102 ℃, 102-105 ℃, 105-108 ℃, 108-120 ℃.All the other are identical with embodiment 1.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. one kind removes the system of methyl alcohol based on the multilayer vaporizer from biofuel, comprise multilayer vaporizer (4), it is characterized in that: be provided with 6-12 layer heating plate (6) in the multilayer vaporizer (4), wherein the heating plate of individual layer (6) is for being located at the circle of central authorities, double-deck heating plate (6) is adherent annular, the liquid spillover position of upper strata heating plate (6) is corresponding with the inflow position of following one deck heating plate (6), is provided with the heating coil (12) and the process liquid thermometer (14) of the turnover that is used for heating medium in the heating plate (6); Multilayer vaporizer (4) is provided with the liquid-inlet (5) facing to upper strata heating plate (6-1), transferpump (1) is connected with liquid-inlet (5) with liquid meter (3) by raw material control valve (2), the bottom of multilayer vaporizer (4) is provided with liquid exit (8), the top of multilayer vaporizer (4) is provided with pneumatic outlet (9), and pneumatic outlet (9) is connected with condenser (10).
2. according to claim 1 based on the multilayer vaporizer remove the system of methyl alcohol from biofuel, it is characterized in that: each layer heating coil (12) is connected with the thermal oil control valve (11) and the thermal oil thermometer (13) of control thermal oil turnover.
3. according to claim 1ly remove the system of methyl alcohol from biofuel based on the multilayer vaporizer, it is characterized in that: heating coil (12) is connected with water vapour control valve (15) and the pressure warning unit (16) that control water vapour enters, and is connected with the trap (17) that the water supply steam is discharged.
One kind adopt claim 1 described based on the multilayer vaporizer from biofuel remove methyl alcohol system remove methanol technics, it is characterized in that: step is as follows:
(1), raw material is entered the upper strata heating plate (6-1) of multilayer vaporizer (4) by transferpump (1), raw material control valve (2) and liquid-inlet (5), raw material is filled it up with at upper strata heating plate (6-1) and is successively flowed downward after overflowing, and stops charging until filling it up with to lower floor's heating plate (6-2);
(2), the raw material in each layer heating plate (6) is heated, when phlegma occurring in the condenser (10), additional raw material makes the basic full of liquid of each layer heating plate (6);
(3), when process liquid thermometer (14) displays temperature in lower floor's heating plate (6-2) is 100 ℃～120 ℃, keep continuously feeding, the indicating value of keeping each layer process liquid-in-glass thermometer (14) is from 64 ℃～120 ℃ Gradient distribution;
(4), the liquid that overflows from lower floor's heating plate (6-2) is the coarse biodiesel that purifies behind the methyl alcohol, is collected into the coarse biodiesel storage tank after leaving liquid exit (8), the methanol solvate that obtains from condenser (10) then is collected into the methyl alcohol storage tank.
5. according to claim 4 based on the multilayer vaporizer remove the technology of methyl alcohol from biofuel, it is characterized in that: open thermal oil control valve (11) gradually, the raw material in each layer heating plate (6) is heated; And the aperture of regulating each thermal oil control valve (11) according to the fluid temperature of each layer heating plate (6), with the indicating value of keeping each layer process liquid-in-glass thermometer (14) Gradient distribution from 64 ℃～120 ℃.
6. according to claim 4 based on the multilayer vaporizer remove the technology of methyl alcohol from biofuel, it is characterized in that: open water vapour control valve (15) gradually, the raw material in each layer heating plate (6) is heated; The aperture of regulating each water vapour control valve (15) according to the fluid temperature of each layer heating plate (6) is with the indicating value of keeping each layer process liquid-in-glass thermometer (14) Gradient distribution from 64 ℃～120 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105455715A CN101993778B (en) | 2010-11-08 | 2010-11-08 | Multilayer evaporator-based system and process for removing methanol from biodiesel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105455715A CN101993778B (en) | 2010-11-08 | 2010-11-08 | Multilayer evaporator-based system and process for removing methanol from biodiesel |
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| CN101993778A true CN101993778A (en) | 2011-03-30 |
| CN101993778B CN101993778B (en) | 2013-03-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533309A (en) * | 2012-01-18 | 2012-07-04 | 浙江工业大学 | Biodiesel rectifying tower provided with multiple vaporization layers |
| CN108686394A (en) * | 2018-08-21 | 2018-10-23 | 河南卓立膜材料股份有限公司 | Waste ink processing apparatus |
| CN108753460A (en) * | 2018-05-07 | 2018-11-06 | 扬州工业职业技术学院 | A kind of device of removing volatile component |
| WO2019149007A1 (en) * | 2018-01-30 | 2019-08-08 | 浙江工业大学 | Method for preparing low-sulfur biodiesel |
| CN116081736A (en) * | 2023-01-04 | 2023-05-09 | 上海第二工业大学 | Efficient crystallization concentration system and method |
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| CN101508904A (en) * | 2009-03-24 | 2009-08-19 | 河南华泰粮油机械工程有限公司 | Method for producing biodiesel |
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2010
- 2010-11-08 CN CN2010105455715A patent/CN101993778B/en not_active Expired - Fee Related
Patent Citations (2)
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| CN101230288A (en) * | 2007-01-24 | 2008-07-30 | 新疆协力新能源有限责任公司 | Method for producing biological diesel oil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533309A (en) * | 2012-01-18 | 2012-07-04 | 浙江工业大学 | Biodiesel rectifying tower provided with multiple vaporization layers |
| WO2019149007A1 (en) * | 2018-01-30 | 2019-08-08 | 浙江工业大学 | Method for preparing low-sulfur biodiesel |
| US11162040B2 (en) | 2018-01-30 | 2021-11-02 | Zhejiang University Of Technology | Method for preparing low-sulfur biodiesel |
| CN108753460A (en) * | 2018-05-07 | 2018-11-06 | 扬州工业职业技术学院 | A kind of device of removing volatile component |
| CN108753460B (en) * | 2018-05-07 | 2021-12-07 | 扬州工业职业技术学院 | Device for removing volatile components |
| CN108686394A (en) * | 2018-08-21 | 2018-10-23 | 河南卓立膜材料股份有限公司 | Waste ink processing apparatus |
| CN116081736A (en) * | 2023-01-04 | 2023-05-09 | 上海第二工业大学 | Efficient crystallization concentration system and method |
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Granted publication date: 20130327 |