CN219886017U - Energy-saving production device for preparing biodiesel - Google Patents
Energy-saving production device for preparing biodiesel Download PDFInfo
- Publication number
- CN219886017U CN219886017U CN202321141622.7U CN202321141622U CN219886017U CN 219886017 U CN219886017 U CN 219886017U CN 202321141622 U CN202321141622 U CN 202321141622U CN 219886017 U CN219886017 U CN 219886017U
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- CN
- China
- Prior art keywords
- heat exchanger
- reaction tower
- tube array
- esterification reaction
- outlet
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- 239000003225 biodiesel Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000005886 esterification reaction Methods 0.000 claims abstract description 35
- 239000002699 waste material Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 2
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Liquid Carbonaceous Fuels (AREA)
Abstract
The utility model discloses an energy-saving production device for preparing biodiesel, which comprises: the esterification reaction tower comprises a tubular heat exchanger, a waste oil and fat feeding distribution pipe, a tubular heater, a multi-layer sieve plate and a gas-phase methanol feeding distribution pipe; the tube array heat exchanger is arranged at the upper part in the reaction tower, a waste oil and fat feeding distribution pipe with a feeding port is arranged below the tube array heat exchanger, a tube array heater is arranged below the tube array heat exchanger, a plurality of layers of sieve plates are arranged inside the reaction tower and are positioned between the tube array heater and a gas-phase methanol feeding distribution pipe with an air inlet at the lower part of the reaction tower, an air outlet is arranged at the top of the reaction tower, and a biodiesel outlet is arranged at the bottom of the reaction tower; the top of the water vapor bag is provided with a hot water inlet, a secondary steam outlet and an air inlet, the bottom of the water vapor bag is provided with a water outlet, the water outlet is connected with an inlet pipeline on the side edge of the lower part of the tube array heat exchanger, and the air inlet of the water vapor bag is connected with an outlet pipeline on the side edge of the upper part of the tube array heat exchanger. The utility model has the advantages of simple structure, convenient operation, energy conservation, high efficiency, high biodiesel yield and low production cost.
Description
Technical Field
The utility model relates to the technical field of biodiesel production devices, in particular to an energy-saving production device for preparing biodiesel by using waste oil as a production raw material and adopting a high-temperature reaction method.
Background
At present, domestic biodiesel mainly uses waste oil as a raw material, and the biodiesel is produced through esterification reaction and transesterification reaction. The esterification reaction is to react free fatty acid in waste oil and fat with methanol to generate fatty acid methyl ester and water; the transesterification is to react glyceride in waste oil with methanol to produce fatty acid methyl ester and glycerin. The existing biodiesel production method mainly comprises a catalyst method, a high-temperature reaction method and an enzyme catalysis method, wherein the high-temperature reaction method is widely adopted, and is characterized in that waste oil is heated to a certain temperature and then enters an esterification reaction tower, and then the waste oil and methanol are subjected to esterification reaction in the reaction tower to generate crude biodiesel and water, and the two defects are that: firstly, low-boiling-point grease in waste grease can be carried out from the top of a tower by methanol gas in the reaction process, so that the yield of biodiesel is affected; secondly, when the methanol gas is led out from the top of the tower, the energy loss is larger due to higher temperature, and more cooling water is needed for cooling, so that the production cost is increased.
Disclosure of Invention
The utility model aims to provide an energy-saving production device for preparing biodiesel, which has the advantages of simple structure, convenient operation, energy conservation, high efficiency, high biodiesel yield and low production cost.
In order to achieve the above purpose, the energy-saving production device for preparing biodiesel comprises an esterification reaction tower and a water drum; the esterification reaction tower comprises a tube array heat exchanger 1, a waste oil and fat feeding distribution tube 2, a tube array heater 3, a multilayer screen plate 4 and a gaseous methanol feeding distribution tube 5, wherein the tube array heat exchanger 1 is arranged at the inner upper part of the esterification reaction tower, the waste oil and fat feeding distribution tube 2 with a waste oil and fat feeding port b is arranged below the tube array heat exchanger 1, the tube array heater 3 is arranged below the tube array heat exchanger, the multilayer screen plate 4 is arranged inside the esterification reaction tower and is positioned between the tube array heater 3 and the gaseous methanol feeding distribution tube 5 with an air inlet d arranged at the lower part of the esterification reaction tower, the top of the esterification reaction tower is provided with an air outlet a, and the bottom of the esterification reaction tower is provided with a biodiesel outlet c; the top of steam package is equipped with hot water inlet e, secondary steam gas outlet f and steam package air inlet g, and the bottom is equipped with steam package delivery port h, and this steam package delivery port h is connected with the pipeline for the import of shell and tube heat exchanger 1 lower part side, and this steam package air inlet g is connected with the pipeline for the export of shell and tube heat exchanger 1 upper portion side.
The energy-saving production device for preparing biodiesel has the following technical characteristics and beneficial effects:
(1) The heat exchange between the methanol water vapor and the low boiling point grease generated in the high temperature esterification reaction process and the hot water can not only generate secondary vapor to recycle heat energy, but also reduce the cooling water consumption and the biodiesel production cost;
(2) The low-boiling-point grease subjected to heat exchange condensation by the tubular heat exchanger enters the esterification reaction tower again to continue the esterification reaction, so that the biodiesel yield is improved, and the production cost of the biodiesel is reduced;
(3) Greatly improves the automation control level, reduces the labor intensity and realizes the continuous production of the waste oil and the biodiesel.
Drawings
FIG. 1 is a schematic diagram of an energy-saving production device for preparing biodiesel.
Fig. 2 is an enlarged schematic view of the water drum of fig. 1.
Reference numerals: the device comprises a tube array heat exchanger 1, a waste oil and fat feeding distribution tube 2, a tube array heater 3, a multi-layer sieve plate 4, a gas-phase methanol feeding distribution tube 5, an air outlet a, a waste oil and fat feeding port b, a biodiesel outlet c, an air inlet d, a hot water inlet e, a secondary steam air outlet f, a steam package air inlet g and a steam package water outlet h.
Detailed Description
The energy-saving production device for preparing biodiesel according to the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
The utility model discloses an energy-saving production device for preparing biodiesel, which is shown in fig. 1 and 2, and comprises an esterification reaction tower and a water drum; the esterification reaction tower comprises a tube array heat exchanger 1, a waste oil and fat feeding distribution tube 2, a tube array heater 3, a multilayer screen plate 4 and a gaseous methanol feeding distribution tube 5, wherein the tube array heat exchanger 1 is arranged at the inner upper part of the esterification reaction tower, the waste oil and fat feeding distribution tube 2 with a waste oil and fat feeding port b is arranged below the tube array heat exchanger 1, the tube array heater 3 is arranged below the tube array heat exchanger, the multilayer screen plate 4 is arranged inside the esterification reaction tower and is positioned between the tube array heater 3 and the gaseous methanol feeding distribution tube 5 with an air inlet d arranged at the lower part of the esterification reaction tower, the top of the esterification reaction tower is provided with an air outlet a, and the bottom of the esterification reaction tower is provided with a biodiesel outlet c; the top of steam package is equipped with hot water inlet e, secondary steam gas outlet f and steam package air inlet g, and the bottom is equipped with steam package delivery port h, and this steam package delivery port h is connected with the pipeline for the import of shell and tube heat exchanger 1 lower part side, and this steam package air inlet g is connected with the pipeline for the export of shell and tube heat exchanger 1 upper portion side.
The utility model relates to a production device for preparing biodiesel in an energy-saving way, which comprises the following specific operation flows:
waste oil enters the reaction tower from a waste oil feed port b in the feed distribution pipe 2, and flows from top to bottom to be further heated in the tube array heater 3 so as to ensure the temperature of the waste oil when reacting with methanol, and the further heated waste oil flows into the multilayer sieve plate 4; the gas-phase methanol enters an esterification reaction tower through an air inlet d in a methanol feeding distribution pipe 5, and the gas-phase methanol flows from bottom to top and reversely contacts with waste oil from top to bottom on a sieve plate for bubbling reaction; meanwhile, hot water with a certain temperature is introduced into the steam drum, the hot water flows into the tube array heat exchanger 1 through a hot water outlet h arranged at the lower part of the steam drum, when methanol steam generated by esterification reaction entrains low-boiling-point grease and enters the tube array heat exchanger 1, the methanol steam and the heat carried by the low-boiling-point grease enable the hot water in the tube array heat exchanger 1 to be heated and vaporized to generate secondary steam, the secondary steam is led out from an outlet at the side surface of the upper part of the tube array heat exchanger 1 and enters the steam drum through a steam drum air inlet g, and the secondary steam in the steam drum is led out from a secondary steam air outlet f for use; the low boiling point grease after heat exchange and temperature reduction by the tube array heat exchanger 1 forms liquid drops to fall back to the esterification reaction tower again for continuous esterification reaction, and meanwhile, the methanol water vapor is led out from the air outlet a at the top of the esterification reaction tower by the tube array heat exchanger 1. And the biodiesel after the qualified reaction flows out from a discharge hole c at the bottom of the esterification reaction tower.
Claims (1)
1. An energy-saving production device for preparing biodiesel is characterized in that: it comprises an esterification reaction tower and a water drum; the esterification reaction tower comprises a tubular heat exchanger (1), a waste oil and fat feeding distribution pipe (2), a tubular heater (3), a multilayer sieve plate (4) and a gaseous methanol feeding distribution pipe (5), wherein the tubular heat exchanger (1) is arranged at the upper part in the esterification reaction tower, the waste oil and fat feeding distribution pipe (2) with a waste oil and fat feeding port (b) is arranged below the tubular heat exchanger (1), the tubular heater (3) is arranged below the tubular heat exchanger, the multilayer sieve plate (4) is arranged inside the esterification reaction tower and is positioned between the tubular heater (3) and the gaseous methanol feeding distribution pipe (5) with an air inlet (d) arranged at the lower part of the esterification reaction tower, an air outlet (a) is arranged at the top of the esterification reaction tower, and a biodiesel outlet (c) is arranged at the bottom of the esterification reaction tower; the top of steam package is equipped with hot water inlet (e), secondary steam gas outlet (f) and steam package air inlet (g), and the bottom is equipped with steam package delivery port (h), and this steam package delivery port (h) is pipeline connection with the import of tubular heat exchanger (1) lower part side, and this steam package air inlet (g) is pipeline connection with tubular heat exchanger (1) upper portion side export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321141622.7U CN219886017U (en) | 2023-05-12 | 2023-05-12 | Energy-saving production device for preparing biodiesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321141622.7U CN219886017U (en) | 2023-05-12 | 2023-05-12 | Energy-saving production device for preparing biodiesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219886017U true CN219886017U (en) | 2023-10-24 |
Family
ID=88408780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321141622.7U Active CN219886017U (en) | 2023-05-12 | 2023-05-12 | Energy-saving production device for preparing biodiesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219886017U (en) |
-
2023
- 2023-05-12 CN CN202321141622.7U patent/CN219886017U/en active Active
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