CN210434309U - Device for removing inorganic acid in xylose solution - Google Patents
Device for removing inorganic acid in xylose solution Download PDFInfo
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- CN210434309U CN210434309U CN201921226983.5U CN201921226983U CN210434309U CN 210434309 U CN210434309 U CN 210434309U CN 201921226983 U CN201921226983 U CN 201921226983U CN 210434309 U CN210434309 U CN 210434309U
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Abstract
The utility model discloses a desorption xylose solution inorganic acid's device, including consecutive ultrafiltration membrane system, reverse osmosis membrane separation system and continuous chromatography piece-rate system, reverse osmosis membrane separation system's feed liquor end links to each other with ultrafiltration membrane system's penetrant outlet pipe way, and continuous chromatography piece-rate system's feed liquor end links to each other with reverse osmosis membrane separation system's concentrate outlet pipe way. The utility model discloses replace traditional anion and cation exchange resin fixed bed with continuous chromatographic fractionation system, do not produce acid, alkali waste water in the whole production process, the consumption of water reduces in a large number, retrieves the inorganic acid repeatedly usable who produces, has reduced manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of xylitol production, in particular to desorption xylose solution inorganic acid's device.
Background
Xylitol is a sweet substance with nutritive value, is also an intermediate of carbohydrate metabolism of a human body, and is a nutritive sugar substitute which is most suitable for diabetics to eat. At present, xylitol is industrially produced mainly by a chemical catalytic hydrogenation method, the method is mature and stable, but the processes of separating and purifying xylose are more, byproducts are more, and the whole process is old. The existing devices for removing inorganic acid from xylose solution all use multi-stage anion and cation exchange resin. The main drawbacks of this device are: 1. the floor area of the equipment is large. 2. The ion exchange adopts a fixed bed, and the consumption of acid, alkali and water is large.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a device for removing inorganic acid from xylose solution, which solves the problems of large water consumption and generation of a large amount of acid-base wastewater in the process of removing inorganic acid from anion and cation exchange resin devices in the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a device for removing inorganic acid in a xylose solution comprises an ultrafiltration membrane system, a reverse osmosis membrane separation system and a continuous chromatographic separation system which are sequentially connected, wherein a liquid inlet end of the reverse osmosis membrane separation system is connected with a penetrating fluid outlet pipeline of the ultrafiltration membrane system, and a liquid inlet end of the continuous chromatographic separation system is connected with a concentrated solution outlet pipeline of the reverse osmosis membrane separation system.
Further, the milipore filter system including the one-level head tank, one-level valve, one-level conveying pump, milipore filter unit and the dislysate jar of connecting in order, the dislysate export of milipore filter unit links to each other with the dislysate jar, the concentrate export links to each other with one-level head tank through the one-level back flow, the one-level back flow on be equipped with one-level heat transfer device.
Wherein the ultrafiltration membrane adopted by the ultrafiltration membrane unit is a tubular ultrafiltration membrane with the pore diameter of 50-200 nm
Further, reverse osmosis membrane separation system including the second grade head tank, second grade valve, second grade delivery pump, reverse osmosis membrane separation unit and the feed liquid jar of connecting in order, the second grade head tank with the dialysis liquid jar pipeline links to each other, reverse osmosis membrane separation unit's concentrate export links to each other with the feed liquid jar, and the dialysate outlet passes through the second grade back flow and links to each other with the second grade head tank, is equipped with second grade heat transfer device on the second grade back flow.
The reverse osmosis membrane used by the reverse osmosis membrane separation unit is a high-pressure reverse osmosis membrane, and the pressure is 45-55 bar.
Furthermore, at least 2 resin columns which are uniformly distributed along the circumferential direction and rotate according to a fixed period are arranged in the continuous chromatographic separation system, and each resin column is filled with resin for separating inorganic acid and xylose.
Further, the continuous chromatographic separation system comprises 10 resin columns, and the continuous chromatographic separation system is divided into 4 regions, wherein each region comprises the following components:
a feeding area: contains 1 resin column, and the concentrate that produces through reverse osmosis membrane separation system filters reversely gets into this resin column, and the feed liquid that comes out from this resin column gets into middle charging bucket and carries out the secondary separation.
A secondary separation area: the device comprises 3 resin columns, wherein the 3 resin columns are sequentially connected in series, the feed liquid of an intermediate charging bucket is reversely pumped into a secondary separation area through a delivery pump, and the feed liquid adsorbed by the 3 resin columns enters a finished product tank.
A sugar washing area: comprises 3 resin columns, the 3 resin columns are sequentially connected in series, the recycling acid is reversely pumped into a sugar washing area through a delivery pump, and sugar liquid washed out by the sugar washing area and feed liquid generated by a feeding area enter an intermediate charging bucket together.
An acid washing area: the system comprises 3 resin columns, wherein the 3 resin columns are sequentially connected in series, pure water is positively pumped into an acid washing area through a delivery pump, acid liquor washed out from the acid washing area enters a recycling acid tank, and after washing is completed, the resin columns continue to enter a secondary separation area for re-adsorption.
Wherein the type of the resin filled in each resin column is PCA441S 04.
The utility model discloses following beneficial effect has: the device for removing the inorganic acid in the xylose solution utilizes the ultrafiltration membrane to remove impurities from the xylose solution, utilizes the reverse osmosis membrane to concentrate the xylose solution, and utilizes the continuous chromatographic separation system to replace a traditional anion and cation exchange resin fixed bed.
Drawings
Fig. 1 is a schematic view of the device of the present invention.
Description of the main component symbols: 1. an ultrafiltration membrane system; 11. a primary feed tank; 12. a first-stage valve; 13. a first-stage material conveying pump; 14. an ultrafiltration membrane unit; 15. a dialysate tank; 16. a primary return pipe; 17. a primary heat exchange device; 2. a reverse osmosis membrane separation system; 21. a secondary feed tank; 22. a secondary valve; 23. a second-stage delivery pump; 24. a reverse osmosis membrane separation unit; 25. a feed liquid tank; 26. a secondary return pipe; 27. a secondary heat exchange device; 3. a continuous chromatographic separation system; 301. a raw material tank; 302. a first delivery pump; 303. a first delivery line; 304. a second delivery line; 305. an intermediate charging bucket; 306. a second delivery pump; 307. a third delivery line; 308. a fourth delivery line; 309. a finished product tank; 310. recycling the acid tank; 311. a third delivery pump; 312. a fifth delivery line; 313. a pure water tank; 314. a fourth delivery pump; 315. a sixth delivery line; 316. a seventh transfer line.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example one
As shown in fig. 1, the device for removing inorganic acid from xylose solution comprises an ultrafiltration membrane system 1, a reverse osmosis membrane separation system 2 and a continuous chromatography separation system 3 which are connected in sequence. The ultrafiltration membrane system 1 comprises a first-stage raw material tank 11, a first-stage valve 12, a first-stage delivery pump 13, an ultrafiltration membrane unit 14 and a dialysate tank 15 which are connected in sequence. The dialysate outlet of the ultrafiltration membrane unit 14 is connected with a dialysate tank 15, the concentrated solution outlet is connected with a primary raw material tank 17 through a primary return pipe 16, and the primary return pipe 16 is provided with a primary heat exchange device 17. The ultrafiltration membrane used in the ultrafiltration membrane unit 14 is a tubular ultrafiltration membrane with a pore size of 100 nm.
The reverse osmosis membrane separation system 2 comprises a secondary raw material tank 21, a secondary valve 22, a secondary delivery pump 23, a reverse osmosis membrane separation unit 24 and a liquid tank 25 which are connected in sequence. The second-stage raw material tank 21 is connected with the dialysis liquid tank 15 through a pipeline, a concentrated liquid outlet of the reverse osmosis membrane separation unit 24 is connected with the raw material liquid tank 25, a dialysis liquid outlet is connected with the second-stage raw material tank 21 through a second-stage return pipe 26, and a second-stage heat exchange device 27 is arranged on the second-stage return pipe 26. The reverse osmosis membrane used in the reverse osmosis membrane separation unit 24 is a high-pressure reverse osmosis membrane, and the pressure is 50 bar.
The continuous chromatographic separation system 3 comprises 10 resin columns (1-10 #) which are uniformly distributed along the circumferential direction and rotate according to a fixed period, each resin column is filled with resin PCA441S04 for separating inorganic acid and xylose, the continuous chromatographic separation system 3 is divided into 4 areas, and each area comprises the following components:
a feeding area: the feed liquid in the feed tank 301 reversely enters the No. 7 resin column through a first conveying pump 302 via a first conveying pipeline 303, and the feed liquid from the No. 7 resin column enters an intermediate material tank 305 via a second conveying pipeline 304 for secondary separation.
A secondary separation area: contain 3 resin columns (8 ~ 10 #), 3 resin columns series connection in proper order, and the feed liquid of middle material jar 305 backward pumps 8# resin column through second delivery pump 306 via third conveying pipe 307, and the feed liquid passes through 8#, 9# and 10# resin column in proper order, and the feed liquid after the separation gets into in finished product jar 309 via fourth conveying pipe 308.
A sugar washing area: contain 3 resin columns (4 ~ 6 #), 3 resin columns series connection in proper order, and the retrieval and utilization acid in retrieval and utilization sour jar 310 backward pumps into 4# resin column through third delivery pump 311 via fifth conveying pipe 312, and retrieval and utilization acid passes through 4#, 5# and 6# resin column in proper order, and the sugar liquid of washing out gets into middle material jar 305 through second conveying pipe 304 and carries out the secondary separation.
An acid washing area: the system comprises 3 resin columns (1-3 #), wherein the 3 resin columns are sequentially connected in series, pure water in a pure water tank 313 is positively pumped into the 1# resin column through a sixth conveying pipeline 315 by a fourth conveying pump 314, the pure water sequentially passes through the 1#, the 2# and the 3# resin columns, and washed acid liquor enters a recycling acid tank 310 through a seventh conveying pipeline 316.
Table 1 shows the operating process parameters of the above-described apparatus:
TABLE 1
Example two
The present embodiment is different from the first embodiment only in that: the ultrafiltration membrane used in the ultrafiltration membrane unit 14 is a tubular ultrafiltration membrane with a pore size of 50nm, and the reverse osmosis membrane used in the reverse osmosis membrane separation unit 24 is a high-pressure reverse osmosis membrane with a pressure of 45 bar. The rest of the structure of this embodiment is the same as that of the first embodiment, and table 2 shows the operating process parameters of the second embodiment:
TABLE 2
EXAMPLE III
The present embodiment is different from the first embodiment only in that: the ultrafiltration membrane used in the ultrafiltration membrane unit 14 is a tubular ultrafiltration membrane with a pore size of 200nm, and the reverse osmosis membrane used in the reverse osmosis membrane separation unit 24 is a high-pressure reverse osmosis membrane with a pressure of 55 bar. The rest of the structure of this embodiment is the same as that of the first embodiment, and table 3 shows the operating process parameters of the second embodiment:
TABLE 3
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A device for removing inorganic acid in xylose solution is characterized in that: the continuous chromatographic separation device comprises an ultrafiltration membrane system, a reverse osmosis membrane separation system and a continuous chromatographic separation system which are sequentially connected, wherein the liquid inlet end of the reverse osmosis membrane separation system is connected with a penetrating fluid outlet pipeline of the ultrafiltration membrane system, and the liquid inlet end of the continuous chromatographic separation system is connected with a concentrated solution outlet pipeline of the reverse osmosis membrane separation system.
2. The apparatus for removing mineral acid from a xylose liquor according to claim 1, wherein: the ultrafiltration membrane system comprises a first-stage raw material tank, a first-stage valve, a first-stage delivery pump, an ultrafiltration membrane unit and a dialysate tank which are connected in sequence, wherein a dialysate outlet of the ultrafiltration membrane unit is connected with the dialysate tank, a concentrated solution outlet is connected with the first-stage raw material tank through a first-stage return pipe, and the first-stage return pipe is provided with a first-stage heat exchange device.
3. The apparatus for removing inorganic acid from xylose liquor according to claim 2, wherein: the ultrafiltration membrane used by the ultrafiltration membrane unit is a tubular ultrafiltration membrane, and the aperture is 50-200 nm.
4. The apparatus for removing inorganic acid from xylose liquor according to claim 2, wherein: reverse osmosis membrane separation system including the second grade head tank, second grade valve, second grade delivery pump, reverse osmosis membrane separation unit and the feed liquor jar of connecting in order, the second grade head tank with the dialysis fluid jar pipeline links to each other, reverse osmosis membrane separation unit's concentrate export links to each other with the feed liquor jar, the dialysate export passes through the second grade back flow and links to each other with the second grade head tank, is equipped with second grade heat transfer device on the second grade back flow.
5. The apparatus for removing inorganic acid from xylose liquor according to claim 4, wherein: the reverse osmosis membrane used by the reverse osmosis membrane separation unit is a high-pressure reverse osmosis membrane, and the pressure is 45-55 bar.
6. The apparatus for removing mineral acid from a xylose liquor according to claim 1, wherein: the continuous chromatographic separation system is internally provided with at least 2 resin columns which are uniformly distributed along the circumferential direction and rotate according to a fixed period, and each resin column is filled with resin for separating inorganic acid and xylose.
7. The apparatus for removing inorganic acid from xylose liquor according to claim 6, wherein: the continuous chromatographic separation system comprises 10 resin columns, and is divided into 4 regions, wherein each region comprises the following components:
a feeding area: the system comprises 1 resin column, wherein concentrated solution generated by filtering through a reverse osmosis membrane separation system reversely enters the resin column, and feed liquid discharged from the resin column enters an intermediate charging bucket for secondary separation;
a secondary separation area: the system comprises 3 resin columns, wherein the 3 resin columns are sequentially connected in series, the feed liquid of an intermediate material tank is reversely pumped into a secondary separation area through a delivery pump, and the feed liquid adsorbed by the 3 resin columns enters a finished product tank;
a sugar washing area: the device comprises 3 resin columns, wherein the 3 resin columns are sequentially connected in series, the recycled acid is reversely pumped into a sugar washing area through a delivery pump, and sugar liquid washed out by the sugar washing area and feed liquid generated by a feeding area enter an intermediate charging bucket together;
an acid washing area: the system comprises 3 resin columns, wherein the 3 resin columns are sequentially connected in series, pure water is positively pumped into an acid washing area through a delivery pump, acid liquor washed out from the acid washing area enters a recycling acid tank, and after washing is completed, the resin columns continue to enter a secondary separation area for re-adsorption.
8. The apparatus for removing inorganic acid from xylose liquor according to claim 6, wherein: the resin packed in each resin column is PCA441S 04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921226983.5U CN210434309U (en) | 2019-07-31 | 2019-07-31 | Device for removing inorganic acid in xylose solution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921226983.5U CN210434309U (en) | 2019-07-31 | 2019-07-31 | Device for removing inorganic acid in xylose solution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368817A (en) * | 2019-07-31 | 2019-10-25 | 赛普特环保技术(厦门)有限公司 | A kind of device and technique removing xylose solution inorganic acid |
| CN114540554A (en) * | 2020-11-26 | 2022-05-27 | 赛普特环保技术(厦门)有限公司 | Device and process for producing inulin by using inulin or jerusalem artichoke |
-
2019
- 2019-07-31 CN CN201921226983.5U patent/CN210434309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368817A (en) * | 2019-07-31 | 2019-10-25 | 赛普特环保技术(厦门)有限公司 | A kind of device and technique removing xylose solution inorganic acid |
| CN114540554A (en) * | 2020-11-26 | 2022-05-27 | 赛普特环保技术(厦门)有限公司 | Device and process for producing inulin by using inulin or jerusalem artichoke |
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