CN201125232Y - Biological diesel oil distilling tower - Google Patents
Biological diesel oil distilling tower Download PDFInfo
- Publication number
- CN201125232Y CN201125232Y CNU2007201949902U CN200720194990U CN201125232Y CN 201125232 Y CN201125232 Y CN 201125232Y CN U2007201949902 U CNU2007201949902 U CN U2007201949902U CN 200720194990 U CN200720194990 U CN 200720194990U CN 201125232 Y CN201125232 Y CN 201125232Y
- Authority
- CN
- China
- Prior art keywords
- tower
- packing
- interchanger
- feed
- biofuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
Abstract
The utility model discloses a bio-diesel distillation column which includes a packed column. An air exhaust device is on the column top for forming vacuum, a reboiler and a feed preheater are on the column bottom. The bio-diesel distillation column has characteristics in that: pall ring is filled into packing section below a feed port in the packed column, metal perforated plate ripple regular packing is filled into packing section above the feed port. The bio-diesel distillation column can be used for refining crude bio-diesel to meet national bio-diesel standard requirement.
Description
Technical field
The utility model relates to a kind of chemical industry equipment, is a kind of device that can extract refining biodiesel from rough biofuel specifically, to improve the quality of biofuel, reaches national biofuel standard GB/T20828-2007.
Background technology
Along with the sharp increase of people to the petroleum chemicals demand, produced quantity to Nonrenewable resources-oil also increases gradually, make the reserves of this Nonrenewable resources reduce day by day, though new oil-gas field is constantly arranged to be verified, but the demand based on future considers have the expert to foretell that petroleum resources will be exhausted in coming few decades.Therefore seeking reproducible substitute, will be the direction of WeiLai Technology development.
Biofuel is for example to extract the oil plant waterplant such as oil-yielding shrubs such as oil crops such as soybean, Semen Brassicae campestris or Chinese pistache fruit, engineering microalgae from reproducible plant to obtain, perhaps refines to form by animal grease, and be a kind of reproducible clean energy.Compare with petrifaction diesel, therefore biofuel sulphur content low oxygen content height acts as a fuel and uses environmental pollution little.Biofuel also has the advantage that oilness is good, flash-point is high in addition.But, the biofuel of producing is owing to be subjected to the restriction of raw material and production technique at present, contain the impurity of high level and plant asphalt etc. in some product, also have by the dark problem of the rotten color and luster that causes of unsaturated fatty acids, make some biofuel not reach the requirement of national biofuel standard GB/T20828-2007.Therefore, coarse biodiesel being made with extra care is a kind of main means that solve the biodiesel quality problem.
The packing tower tripping device is a kind of chemical separating equipment of using always, existing packing tower tripping device is made up of packing tower, tower inner member and the pre-glassware of tower bottom reboiler, overhead condenser and charging usually, and the tower inner member mainly contains members such as filler, gas distributor, liquid collecting sparger.Reboiler, condenser and feed preheater are independent means, by pipeline respectively with at the bottom of the filler Tata, cat head and opening for feed link to each other.And be filled with filler of the same race in above packing section of packing tower charging and the following packing section of charging.But owing to contain plant asphalt and impurity in the biofuel, and be not suitable for coming separation and purification with general packing tower.Not only many, the required installing spaces of component devices are big, cost is high for particularly present this tripping device, also have the high shortcoming of energy consumption.
The utility model content
The purpose of this utility model just is to provide a kind of biofuel distillation tower, can be used for isolating pitch and impurity from rough biofuel, improves the quality of refining biodiesel.
The utility model adopts following technical solution: a kind of biofuel distillation tower, comprise a packing tower, cat head has air extractor to keep the tower internal pressure, reboiler is arranged at the bottom of the tower, also comprise feed preheater and fresh feed pump, it is characterized in that: the packing section that is positioned in packing tower below the opening for feed is filled with the Pall ring filler, is filled with the metal perforated plate corrugated regular filler in the packing section that is positioned at more than the opening for feed.
Described condenser can be selected shell and tube heat exchanger for use, and packing section top and its tube side of being installed in packing tower communicate with space in the tower, and the upper outlet of its tube side is connected with described air extractor; The liquid collecting sparger is installed between shell and tube heat exchanger and packing section, and the intercepting basin of liquid collecting sparger is common to the extraction refined diesel oil mutually with the cat head discharge port, and the sparger of liquid collecting sparger disperses partially liq and be discharged to form in the tower to reflux.So that whole device densification.
Described shell and tube heat exchanger can be made of placed in-line first interchanger of tube side and second interchanger, described first interchanger is installed in the below of second interchanger, the inlet of the shell side of first interchanger links to each other with described fresh feed pump outlet by pipeline, the shell side outlet of first interchanger connects the material inlet of described feed preheater, and the shell side of described second interchanger leads to heat-eliminating medium.
Described reboiler is that a still kettle is contained in directly that the space communicates in packing tower bottom and the packing tower.
The biofuel distillation tower that the utility model provides, compositing characteristic at biofuel, adopting different filler combination respectively with packing section below the opening for feed more than the opening for feed, the above packing section of opening for feed adopts the metal perforated plate corrugated regular filler in tower, it is in the metal sheet upper punch aperture to be arranged, the liquid of can rough segmentation joining thin slice is strengthened laterally mixing; Be pressed into ripplet on the thin slice and play the fine distribution liquid effects, increase the uniform and filler wet performance of liquid, improve mass-transfer efficiency.Below opening for feed, adopt the Pall ring filler then to help stopping impurity and capable of washing.Be particularly suitable for coarse biodiesel as the biofuel distillation tower and make with extra care, make purified product reach biofuel standard GB/T20828-2007.In addition, this distillation extraction device can also be applicable to that other oils product separation is refining.
Description of drawings
The synoptic diagram of Fig. 1 biofuel distillation tower of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments biofuel distillation tower of the present utility model is described further, to help understanding content of the present utility model.
As shown in Figure 1, biofuel distillation tower chief component is a packing tower 4, cat head is connected the air extractor that is made of vacuum buffer tank 8 and vacuum pump (omitting among the figure) to keep vacuum tightness in the tower by pipeline, the reboiler that is made of still kettle 5 is arranged, so that liquid material is vaporized once more at the bottom of the tower.Feed preheater 3 is used for material-coarse biodiesel is heated the feeding temperature that makes charging reach packing tower.The packing section that is positioned in packing tower 4 below the opening for feed is filled with Pall ring 41, be filled with the perforated plate corrugated structured packing 43 of efficient metal in the packing section that is positioned at more than the opening for feed, it is in the metal sheet upper punch aperture to be arranged, and can rough segmentation joins the liquid of thin slice, strengthens laterally mixing; Be pressed into ripplet on the thin slice and play the fine distribution liquid effects, increase the uniform and filler wet performance of liquid, improve mass-transfer efficiency.Generally between 100mm-200mm, the filler diameter is slightly less than the tower internal diameter to perforated plate corrugated filler dish height, the staggered 90 ° of installations of adjacent two dishes.And adopt Pall ring because pressure drop is low, flux is big, the heavy constituent that help in the coarse biodiesel are flowed through, and block impurity and be convenient to and clean.Two refined diesel oil receiving tanks 6,7 communicate by the intercepting basin of the liquid collecting sparger 44 in discharge nozzle and the tower, reflux overhead condensation liquid is partly taked part form.Filler and liquid collecting sparger are currently available products, select to use according to the concrete parameter of the product that producer's different size is provided.
For making the device densification, and reduce device cold and heat source consumption.By shown in Figure 1, be positioned at the packing section top position at the cat head of packing tower 4 and be provided with the condenser that shell and tube heat exchanger constitutes, its tube side communicates with the interior space of tower.As a preferred embodiment, shell and tube heat exchanger is made up of placed in-line first interchanger 45 of tube side and second interchanger 46, first interchanger 45 is positioned at second interchanger, 46 belows, all installing in the vertical mode of tubulation directly with in the tower communicates the tubulation tube side, making the gas that rises in the tower directly enter tube side is condensed, the tube side outlet of second interchanger, 46 upper covers connects vacuum buffer tank 8 by pipeline, to keep working pressure in the tower.Feed water coolant in second interchanger, 46 shell sides.The shell side of first interchanger 45 enters the mouth and connects the outlet of fresh feed pump 1 by feed-pipe and under meter 2, and the shell side outlet taps into the material inlet of material preheater 3.By fresh feed pump 1 coarse biodiesel is squeezed into and to be elevated to the packing tower feeding temperature through feed preheater 3 again after first interchanger and the heat exchange of cat head rising gas heat up, made full use of the waste heat of steam state material in the tower like this, reduced the used thermal source of raw material preheating, simultaneously also reduce the low-temperature receiver that the condensation of cat head gas is used, reached the synthesis energy saving effect.Second heat exchanger shell pass feeds water coolant to passing through the further condensation of first interchanger, the 45 uncooled gases in back.
Position between first interchanger 45 and filler is provided with liquid collecting sparger 44 and is used for collecting and returns cage overhead condensation liquid, the intercepting basin of liquid collecting sparger 44 communicates with discharge nozzle refining biodiesel as the finished product extraction and collect in the receiving tank 6,7, and receiving tank 6,7 gas-phase spaces and vacuum buffer tank 8 are ganged up to keep system vacuum degree really.Another part liquid of overhead condensation liquid evenly spreads to packing section as the sparger of phegma by liquid collecting sparger 44, carries out gas-to-liquid contact mass transfer and heat transfer with the gas that rises in filler.
For further making packing tower compact construction and simplification, reboiler is that a still kettle 5 directly is contained in packing tower 4 bottoms, the space communicates in the stilling chamber of still kettle 5 and packing tower 4 towers, liquid after flowing through Pall ring filler 41 and carrying out mass-and heat-transfer is directly entered in the still kettle 5 by heating once more the relatively low component vaporization of boiling point is risen.
As shown in Figure 1, the packing section of the perforated plate corrugated structured packing of opening for feed above filling efficient metal constitutes by two sections, and every section height is 3000mm, and every section below is provided with gas distributor 42.The following packing section height of opening for feed is similarly 3000mm, and the tower internal diameter is 600mm.The volume of still kettle 5 is 3m at the bottom of the tower
3, its heater surface is long-pending to be 20m
2Feed preheater 3 heat interchanging areas are 10m
2, the heat interchanging area of cat head first interchanger 45 is 20m
2, the heat interchanging area of second interchanger 46 is 40m
2
Steam is as the thermal source of still kettle 5 and feed preheater 3.
Coarse biodiesel sends into first interchanger 45 by fresh feed pump 1 and feed preheater 3 enters in the packing tower 4 through after being warmed up to feeding temperature, pass through the gas-to-liquid contact mass-and heat-transfer through packing section, realize separating, the lower component of boiling point with gas rise in form cat head through first interchanger 45 and 46 condensations of second interchanger after a part be refined diesel oil as the discharging extraction, enter receiving tank 6,7, another part carries out mass transfer by packing section downwards as phegma.The higher impurity of boiling point enters in the still kettle 5 at the bottom of the still, proceeds mass transfer by heating the wherein component vaporization of the relatively low boiling point of part, and part is difficult for the biological pitch of vaporization etc. and 5 accumulates in still kettle, is discharged by still kettle 5 discharge holes.Using this water distilling apparatus, to carry out biofuel refining, and the refining biodiesel product purity can reach 99.99%, and yield reaches more than 95%, and quality reaches national biofuel standard GB/T20828-2007.
Claims (6)
1, a kind of biofuel distillation tower, comprise a packing tower, cat head has air extractor to keep the tower internal pressure, reboiler is arranged at the bottom of the tower, also comprise feed preheater and fresh feed pump, it is characterized in that: the packing section that is positioned in packing tower below the opening for feed is filled with the Pall ring filler, is filled with the metal perforated plate corrugated regular filler in the packing section that is positioned at more than the opening for feed.
2, biofuel distillation tower as claimed in claim 1, it is characterized in that: described condenser is a shell and tube heat exchanger, and packing section top and its tube side of being installed in packing tower communicate with space in the tower, and the upper outlet of its tube side is connected with described air extractor; The liquid collecting sparger is installed between shell and tube heat exchanger and packing section, and the intercepting basin of liquid collecting sparger is common to the extraction refined diesel oil mutually with the cat head discharge port, and the sparger of liquid collecting sparger disperses partially liq and be discharged to form in the tower to reflux.
3, biofuel distillation tower as claimed in claim 2, it is characterized in that: described shell and tube heat exchanger is made of placed in-line first interchanger of tube side and second interchanger, described first interchanger is installed in the below of second interchanger, the inlet of the shell side of first interchanger links to each other with described fresh feed pump outlet by pipeline, the shell side outlet of first interchanger connects the material inlet of described feed preheater, and the shell side of described second interchanger leads to heat-eliminating medium.
4, as described biofuel distillation tower one of in the claim 1 to 3, it is characterized in that: described reboiler is that a still kettle directly is contained in described packing tower bottom and communicates with space in the packing tower.
5, as described biofuel distillation tower one of in the claim 1 to 3, it is characterized in that: the above packing section of described opening for feed is divided into two sections.
6, biofuel distillation tower as claimed in claim 5 is characterized in that: the internal diameter of described packing tower is 600mm, and the height of every section packing section is 3000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201949902U CN201125232Y (en) | 2007-11-14 | 2007-11-14 | Biological diesel oil distilling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201949902U CN201125232Y (en) | 2007-11-14 | 2007-11-14 | Biological diesel oil distilling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125232Y true CN201125232Y (en) | 2008-10-01 |
Family
ID=39998649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201949902U Expired - Fee Related CN201125232Y (en) | 2007-11-14 | 2007-11-14 | Biological diesel oil distilling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125232Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483311A (en) * | 2013-08-27 | 2014-01-01 | 仙桃市康化科技有限公司 | Automatic production system for 2-acetylthiophene |
| CN104087412A (en) * | 2014-07-17 | 2014-10-08 | 李安民 | Process and equipment for fatty acid methyl ester refining |
-
2007
- 2007-11-14 CN CNU2007201949902U patent/CN201125232Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483311A (en) * | 2013-08-27 | 2014-01-01 | 仙桃市康化科技有限公司 | Automatic production system for 2-acetylthiophene |
| CN103483311B (en) * | 2013-08-27 | 2018-10-30 | 仙桃市康化科技有限公司 | 2- acetyl thiophene Automatic Production Systems |
| CN104087412A (en) * | 2014-07-17 | 2014-10-08 | 李安民 | Process and equipment for fatty acid methyl ester refining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20091214 |