Device for preparing low-alcohol wine and high-alcohol wine by combined membrane method

Abstract

The utility model discloses a device for preparing low-alcohol wine and high-alcohol wine by a combined membrane method, which comprises a raw material tank, a nanofiltration membrane component, a preferential organic matter permeable membrane component and a dehydration membrane component, and the raw material tank is respectively connected with the nanofiltration membrane component and the preferential organic matter permeable membrane component; the permeation side of the nanofiltration membrane assembly is connected with the dehydration membrane assembly, and the retentate side of the nanofiltration membrane assembly, the retentate side of the preferential organic matter permeation membrane assembly and the permeation side of the dehydration membrane assembly are respectively connected with a low-alcohol wine product tank; the permeation side of the preferential organic matter permeation membrane assembly and the retentate side of the dehydration membrane assembly are respectively connected with a strong wine product tank. According to the utility model, the wine can be effectively separated into strong wine and low-alcohol wine, the quality of the strong wine and the low-alcohol wine is improved, the maximum resource utilization of raw wine is realized, and the device is suitable for industrial production.

Description

Technical Field

[0001] The present invention belongs to the technical field of wine separation, and particularly relates to a device for preparing low-alcohol wine and high-proof liquor by a combined membrane method, specifically a device for separating wine through a nanofiltration membrane, an organic matter-preferential permeation membrane, and a dehydration membrane to obtain low-alcohol wine and high-proof liquor. Background Art

[0002] With the continuous improvement of consumers' requirements for the quality of alcoholic beverages, the technology for preparing high-proof liquor from wine is also constantly developing. In this field, traditional distillation technology and membrane separation technology are two different technical routes.

[0003] The traditional distillation technology heats wine to evaporate alcohol and other volatile substances in it, and then obtains high-proof liquor through condensation and collection. This method requires a large amount of thermal energy during the distillation process, resulting in high energy consumption. Moreover, too high a temperature will damage some substances in the wine, affecting the taste of the high-proof liquor. The tail liquor and residual liquid produced during distillation are almost unusable, and the treatment cost is relatively high. In addition, a certain amount of wastewater and waste gas will be generated during the distillation process, causing a certain impact on the environment.

[0004] Membrane separation technology is a new type of alcoholic beverage production technology. It separates alcohol and other components in wine through specific membrane materials and processes. Membrane separation technology is usually carried out at relatively low temperatures and pressures, so the energy consumption is lower than that of traditional distillation technology. Membrane separation technology produces less wastewater and waste gas during the production process, having less impact on the environment. Membrane separation technology can complete the alcohol permeation treatment of wine in a relatively short time, improving the production efficiency. Wine can obtain high-proof liquor and alcohol-free wine by using membrane separation technology with almost no consumption. Patent CN109593619 A introduces a method for separating alcohol and flavor substances in wine by using an organic matter-preferential pervaporation membrane. However, some flavor substances that are not easily permeable through the membrane, such as organic acids, are intercepted, resulting in the body of the product brandy not being plump enough and the taste being dull. The high-proof liquor obtained by separating wine with an organic matter-preferential pervaporation membrane alone has a strong aroma component, but a monotonous taste and an unbalanced body; the alcohol-free wine obtained has more tannins and organic acids, and the taste is relatively astringent. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, the applicant has made improvements on the basis of the prior art. First, the nanofiltration membrane is used for decolorization, and the permeate is dehydrated to obtain high-proof liquor, and then it is mixed with the permeated wine of the organic matter-preferential permeation membrane in a certain proportion to obtain high-proof brandy with a better taste. The alcohol content can be kept unchanged, the aroma components are enriched, substances such as organic acids are balanced, and the taste is more abundant. The water permeated through the dehydration membrane can dilute the nanofiltration-concentrated wine and then be mixed with the retentate wine produced by the organic matter-preferential permeation membrane to obtain a low-alcohol wine product.

[0006] The utility model adopts a combination of nanofiltration membrane, dehydration membrane and organic matter preferential permeation membrane to separate wine into high-alcohol wine and low-alcohol wine. The high-alcohol wine has rich aroma components and coordinated other substances such as organic acids; the content of organic acids in the low-alcohol wine is diluted and the taste is richer; the quality of the low-alcohol wine and the high-alcohol wine is improved, resource waste is reduced, and good economic and social value is created.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A device for preparing low-alcohol wine and high-alcohol wine by a combined membrane method, comprising a raw material tank 1, a nanofiltration membrane module 4, an organic matter preferential permeation membrane module 7 and a dehydration membrane module 8.

[0009] The raw material tank 1 is respectively connected to the nanofiltration membrane module 4 and the organic matter preferential permeation membrane module 7.

[0010] The permeate side of the nanofiltration membrane module 4 is connected to the dehydration membrane module 8.

[0011] The retentate side of the nanofiltration membrane module 4, the retentate side of the organic matter preferential permeation membrane module 7 and the permeate side of the dehydration membrane module 8 are respectively connected to a low-alcohol wine product tank 15.

[0012] The permeate side of the organic matter preferential permeation membrane module 7 and the retentate side of the dehydration membrane module are respectively connected to a high-alcohol wine product tank 11.

[0013] Furthermore, the membrane in the organic matter preferential permeation membrane module 7 is a PDMS composite membrane that preferentially permeates ethanol and aroma components.

[0014] Furthermore, the nanofiltration membrane in the nanofiltration membrane module 4 is a nanofiltration membrane with a molecular weight cut-off of 200-500 daltons and a minimum desalination rate of 96% for MgSO 4 2.

[0015] Furthermore, the dehydration membrane used in the dehydration membrane module 8 is a PVA membrane.

[0016] Furthermore, pumps are respectively arranged between the nanofiltration membrane module 4 and the organic matter preferential permeation membrane module 7 and the raw material tank 1.

[0017] Furthermore, the pump arranged between the nanofiltration membrane module 4 and the raw material tank is a high-pressure pump 3.

[0018] Furthermore, a first heater 5 is arranged in front of the inlet of the organic matter preferential permeation membrane module 7.

[0019] Furthermore, the permeate side outlet of the organic matter preferential permeation membrane module 7 is connected to the high-alcohol wine product tank 11 through a first condenser 9.

[0020] Further, a second heater 6 is provided in front of the inlet of the dehydration membrane module 8.

[0021] Further, the permeate side outlet of the dehydration membrane module 8 is connected to the low-alcohol wine product tank 15 through a second condenser 10.

[0022] Further, the device further includes a water tank 12, and the permeate side of the dehydration membrane module 8 is connected to the low-alcohol wine product tank 15 through the water tank 12.

[0023] Further, the permeate side outlet of the organics-preferential permeation membrane module 7 is connected to a vacuum pump.

[0024] Further, the permeate side outlet of the dehydration membrane module 8 is connected to a vacuum pump.

[0025] When using the above device in production, the following usage method or the general usage method in the art can be adopted:

[0026] (1) Organics-preferential permeation membrane treatment: Heat the original wine and feed it into the organics-preferential permeation membrane module 7. Create a pressure difference on the upstream and downstream sides of the membrane by means of vacuum pumping, and then collect the substances on the permeate side through condensation. Alcohol and flavor components preferentially pass through the organics-preferential permeation membrane module 7 and are enriched on the permeate side to obtain high-proof wine 1; organic acids, pigments, etc. are enriched on the retentate side to obtain retentate wine;

[0027] (2) Nanofiltration membrane treatment: Feed the original wine into the nanofiltration membrane module 4 through a high-pressure pump. Under the pressure on the upstream side, substances such as alcohol in the wine that can pass through the pore size of the nanofiltration membrane pass through the nanofiltration membrane module 4 to obtain permeate wine; while macromolecular substances such as pigments are intercepted and concentrated to obtain a nanofiltration concentrate;

[0028] (3) Dehydration membrane treatment: Heat the permeate wine obtained from the nanofiltration membrane module and feed it into the dehydration membrane module 8. Create a pressure difference on the upstream and downstream sides of the membrane by means of vacuum pumping, and then collect the substances on the permeate side through condensation. Water in the permeate passes through the dehydration membrane module 8, water is obtained on the permeate side of the dehydration membrane module 8, while alcohol, organic acids, flavor components, etc. on the retentate side are concentrated to obtain high-proof wine 2;

[0029] (4) High-proof wine mixing: Mix high-proof wine 1 and high-proof wine 2 in proportion in the high-proof wine product tank 11 to obtain high-proof product wine; high-proof wine 1 contains more flavor components but less content of substances such as organic acids, and both flavor components and other substances such as organic acids in high-proof wine 2 are concentrated; after mixing, the high-proof product wine has more aroma components and the organic acids can also reach a balance, making its taste richer.

[0030] (5)Low-alcohol wine blending: Dilute the water obtained from the permeate side of the dehydration membrane module 8 and mix it with the nanofiltration concentrate and the retentate wine obtained from the organic matter preferential permeation membrane module 7 in the low-alcohol wine product tank 15 in proportion to obtain a low-alcohol wine product with a lower alcohol content.

[0031] The beneficial effects of the present utility model are as follows:

[0032] (1)The present utility model adopts a combined membrane method, that is, a combined technology of an organic matter preferential permeation membrane, a nanofiltration membrane and a dehydration membrane to separate wine, and the obtained products are mixed. Without changing the alcohol content of high-proof wine, a high-proof wine product with rich aroma and balanced body and a low-alcohol wine product that retains pigments, tannins, etc. and balances organic acids can be obtained. While effectively separating wine into high-proof wine and low-alcohol wine, the quality of high-proof wine and low-alcohol wine is improved.

[0033] (2)The present utility model can realize the separation of wine at low temperature, retain the substances in the wine, avoid the appearance of burnt and charred flavors, and has a small wine loss. Both the high-proof wine product and the low-alcohol wine product separated from the wine can be used as products, realizing the maximum resource utilization of the original wine. Description of the Drawings

[0034] Figure 1 is a schematic diagram of the device for preparing low-alcohol wine and high-proof wine by the combined membrane method of the present utility model.

[0035] Among them, 1 is a raw material tank, 2 is a raw material pump, 3 is a high-pressure pump, 4 is a nanofiltration membrane module, 5 is a first heater, 6 is a second heater, 7 is an organic matter preferential permeation membrane module, 8 is a dehydration membrane module, 9 is a first condenser, 10 is a second condenser, 11 is a high-proof wine product tank, 12 is a water tank, 13 is a vacuum pump, 14 is a water pump, and 15 is a low-alcohol wine product tank. Specific Embodiments

[0036] The following further explains the present utility model in combination with embodiments. The following embodiments are only used to illustrate the present utility model, but do not limit the implementation scope of the present utility model.

[0037] The device for preparing low-alcohol wine and high-proof wine by the adopted combined membrane method includes a raw material tank 1, a nanofiltration membrane module 4, an organic matter preferential permeation membrane module 7 and a dehydration membrane module 8. The raw material tank 1 is respectively connected to the nanofiltration membrane module 4 and the organic matter preferential permeation membrane module 7. The permeate side of the nanofiltration membrane module 4 is connected to the dehydration membrane module 8. The retentate side of the nanofiltration membrane module 4, the retentate side of the organic matter preferential permeation membrane module 7 and the permeate side of the dehydration membrane module 8 are respectively connected to the low-alcohol wine product tank 15. The permeate side of the organic matter preferential permeation membrane module 7 and the retentate side of the dehydration membrane are respectively connected to the high-proof wine product tank 11.

[0038] The membrane in the organic matter preferential permeation membrane module 7 is a PDMS composite membrane that preferentially permeates ethanol and aroma components.

[0039] The nanofiltration membrane in the nanofiltration membrane module 4 has a molecular weight cut-off of 200 - 500 Daltons and is a nanofiltration membrane with a minimum desalination rate of 96% for MgSO 4 5.

[0040] The dehydration membrane used in the dehydration membrane module 8 is a PVA membrane.

[0041] Pumps are respectively arranged between the nanofiltration membrane module 4 and the organic matter preferential permeation membrane module 7 and the raw material tank 1.

[0042] The pump arranged between the nanofiltration membrane module 4 and the raw material tank is the high-pressure pump 3.

[0043] A first heater 5 is arranged before the inlet of the organic matter preferential permeation membrane module 7.

[0044] The permeate side outlet of the organic matter preferential permeation membrane module 7 is connected to the high-proof liquor product tank 11 through a first condenser 9.

[0045] A second heater 6 is arranged before the inlet of the dehydration membrane module 8.

[0046] The permeate side outlet of the dehydration membrane module 8 is connected to the low-alcohol liquor product tank 15 through a second condenser 10.

[0047] The device further includes a water tank 12, and the permeate side of the dehydration membrane module 8 is connected to the low-alcohol liquor product tank 15 through the water tank 12.

[0048] The permeate side outlet of the organic matter preferential permeation membrane module 7 is connected to a vacuum pump 13.

[0049] The permeate side outlet of the dehydration membrane module 8 is connected to the vacuum pump 13. Example

[0050] The wine with an alcohol content of 14° is passed through the organic matter preferential permeation membrane module 7 under the operating conditions of a temperature of 40°C and a vacuum degree of 2000 Pa. Ethanol and flavor substances in the wine preferentially permeate through the membrane, and a high-proof liquor with an alcohol content of 40° is obtained on the permeate side, while a retentate wine with an alcohol content of 1.5° is obtained on the retentate side. The above-mentioned wine with an alcohol content of 13° is then passed through a nanofiltration membrane module. The nanofiltration membrane module uses a nanofiltration membrane with a molecular weight cut-off of 500 Dalton. The operating temperature is 20°C, and the feed pressure is 0.8 MPa. Pigments are intercepted on the upstream side of the membrane to obtain a nanofiltration concentrate, and a colorless permeate wine with an alcohol content of 14° is obtained on the downstream side of the membrane, with a permeation ratio of 80%. The permeate wine obtained by nanofiltration is passed through a dehydration membrane module under the operating conditions of a temperature of 40°C and a vacuum degree of 500 Pa. Water in the permeate wine permeates through the membrane, water is obtained on the permeate side, and a high-proof liquor with an alcohol content of 40° is obtained on the retentate side. The high-proof liquor obtained by the dehydration membrane and the permeate wine obtained by the organic matter preferential permeation membrane are mixed in a ratio of 1:1.5 to obtain a product wine with an alcohol content of 40°. The water permeated by the dehydration membrane is used to dilute the nanofiltration concentrate and then mixed with the retentate wine obtained by the organic matter preferential permeation membrane module to obtain a low-alcohol wine product with an alcohol content of 3°. Example

[0051] The wine with an alcohol content of 12° is passed through the organic matter preferential permeation membrane module 7 under the operating conditions of a temperature of 45°C and a vacuum degree of 6000 Pa. Ethanol and flavor substances in the wine preferentially permeate through the membrane, and a high-proof liquor with an alcohol content of 25° is obtained on the permeate side, while a de-alcoholized wine with an alcohol content of 0.1° is obtained on the retentate side. The 25° high-proof liquor is used as raw material and passed through the organic matter preferential permeation membrane module 7 again to obtain a second-enriched liquor with an alcohol content of 45°, and the retentate side is the retentate wine with an alcohol content of 0.1°. The above-mentioned wine with an alcohol content of 12° is then passed through a nanofiltration membrane module. The nanofiltration membrane module uses a nanofiltration membrane with a molecular weight cut-off of 500 Dalton. The operating temperature is 35°C, and the feed pressure is 1.5 MPa. Pigments are intercepted on the upstream side of the membrane to obtain a nanofiltration concentrate, and a colorless permeate wine with an alcohol content of 12° is obtained on the downstream side of the membrane, with a permeation ratio of 95%. The obtained permeate wine is passed through a dehydration membrane module under the operating conditions of a temperature of 50°C and a vacuum degree of 1500 Pa. Water in the permeate wine permeates through the membrane, most of the water is obtained on the permeate side, and a high-proof liquor with an alcohol content of 45° is obtained on the retentate side. The high-proof liquor obtained by the dehydration membrane and the second-enriched liquor obtained by the organic matter preferential permeation membrane are mixed in a ratio of 1:0.5 to obtain a product wine with an alcohol content of 45°. The water permeated by the dehydration membrane is used to dilute the nanofiltration concentrate, and then mixed with the retentate wine and the de-alcoholized wine obtained by the organic matter preferential permeation membrane module to obtain a de-alcoholized wine product with an alcohol content of 0.5°. Example

[0052] The wine with an alcohol content of 13° is passed through the organic matter preferential permeation membrane module 7 under the operating conditions of a temperature of 45°C and a vacuum degree of 4000 Pa. Ethanol and flavor substances in the wine preferentially permeate through the membrane. A high-proof liquor with an alcohol content of 35° is obtained on the permeate side, and a de-alcoholized wine with an alcohol content of 1° is obtained on the retentate side. The 35° high-proof liquor is used as the raw material and passed through the organic matter preferential permeation membrane again to obtain a second-enriched liquor with an alcohol content of 60°. The above wine with an alcohol content of 13° is passed through a nanofiltration membrane module. The nanofiltration membrane module uses a nanofiltration membrane with a molecular weight cut-off of 200 Dalton. The operating temperature is 30°C, and the feed pressure is 1.0 MPa. Pigments are intercepted on the upstream side of the membrane to obtain a nanofiltration concentrate, and the colorless permeate wine with an alcohol content of 13° is obtained on the downstream side of the membrane, with a permeation ratio of 90%. The obtained permeate wine is passed through a dehydration membrane module under the operating conditions of a temperature of 50°C and a vacuum degree of 1000 Pa. Water in the permeate wine permeates through the membrane. Most of the water is obtained on the permeate side, while a high-proof liquor with an alcohol content of 60° is obtained on the retentate side. The high-proof liquor obtained from the dehydration membrane is mixed with the second-enriched liquor obtained from the organic matter preferential permeation membrane module at a ratio of 1:1 to obtain a product liquor with an alcohol content of 60°. The water permeated from the dehydration membrane is used to dilute the nanofiltration concentrate, and then mixed with the retentate wine and low-alcohol wine obtained from the organic matter preferential permeation membrane module to obtain a low-alcohol wine product with an alcohol content of 1.5°.

Claims

1. A device for preparing low-alcohol wine and high-alcohol wine by a combined membrane method, characterized in that: It comprises a raw material tank (1), a nanofiltration membrane assembly (4), an organic matter preferential permeation membrane assembly (7) and a dehydration membrane assembly (8), The raw material tank (1) is connected to the nanofiltration membrane assembly (4) and the organic matter preferential permeation membrane assembly (7), respectively. The permeation side of the nanofiltration membrane assembly (4) is connected to the dehydration membrane assembly (8). The retentate side of the nanofiltration membrane assembly (4), the retentate side of the organic matter preferentially permeating membrane assembly (7), and the permeate side of the dehydration membrane assembly (8) are respectively connected to a low-alcohol wine product tank (15). The permeate side of the organic matter preferentially permeating membrane component (7) and the retentate side of the dehydration membrane component are respectively connected to a strong liquor product tank (11).

2. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The membrane in the preferentially organic matter permeable membrane assembly (7) is a PDMS composite membrane that preferentially permeates ethanol and aroma components.

3. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The nanofiltration membrane in the nanofiltration membrane assembly (4) is a nanofiltration membrane with a molecular weight cutoff of 200 to 500 Daltons and a minimum desalination rate of 96% for MgSO4.

4. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The dehydration membrane used in the dehydration membrane assembly (8) is a PVA membrane.

5. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: Pumps are respectively provided between the nanofiltration membrane assembly (4), the organic matter preferentially permeating membrane assembly (7), and the raw material tank (1).

6. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: A first heater (5) is provided in front of the inlet of the organic matter preferentially permeable membrane assembly (7).

7. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The permeation side outlet of the organic matter preferentially permeating membrane assembly (7) is connected to the strong liquor product tank (11) via a first condenser (9).

8. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: A second heater (6) is provided in front of the inlet of the dehydration membrane assembly (8).

9. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The permeate side outlet of the dehydration membrane assembly (8) is connected to the low-alcohol wine product tank (15) via the second condenser (10).

10. The device for preparing low-alcohol wine and high-alcohol wine by combined membrane method according to claim 1, characterized in that: The device further comprises a water tank (12), and the permeate side of the dehydration membrane assembly (8) is connected to the low-alcohol wine product tank (15) via the water tank (12).

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