CN201770628U - High-concentration hoxym ethane normal-pressure reaction tower - Google Patents
High-concentration hoxym ethane normal-pressure reaction tower Download PDFInfo
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- CN201770628U CN201770628U CN2010205076822U CN201020507682U CN201770628U CN 201770628 U CN201770628 U CN 201770628U CN 2010205076822 U CN2010205076822 U CN 2010205076822U CN 201020507682 U CN201020507682 U CN 201020507682U CN 201770628 U CN201770628 U CN 201770628U
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Abstract
The utility model relates to the technical field of production equipment for hoxym ethane, in particular to a high-concentration hoxym ethane normal-pressure reaction tower comprising a cylindrical tower body; the bottom end of the tower body is provided with a skirt base which plays a fixing role; the upper part of the skirt base of the tower body is provided with a tower kettle section; a first regular packing section, a first catalyst packing section, a second catalyst packing section and a second regular packing section are sequentially arranged at the upper end of the tower kettle section in the tower body from bottom to top; the upper end of each packing section is provided with a slot-type distributor; the lower ends of two catalyst packing sections are provided with liquid collecting device; and the lower end of the second regular packing section is provided with a liquid collecting device. In the utility model, by the common function of the liquid collecting devices and the slot-type distributor, the liquid at the lower part of each packing section is re-distributed uniformly; the surface of the packing can be sufficiently moistened by the re-distributed liquid, thus achieving the best reaction and rectifying effect.
Description
Technical field
The utility model relates to the production unit technical field of methylal, especially a kind of high density methylal synthesis under normal pressure tower.
Background technology
Methylal is the colourless transparent liquid of little tool smell.In recent years, domesticly continue to use sulfuric acid process producing on the methylal technology, to the seriously corroded of equipment always.Disadvantage and the cooperation methylal device of Japan in order to solve old industry law developed with the catalytic rectification process synthesizing dimethoxym ethane.Catalyzer adopts solid resin, has fundamentally solved the problem of equipment corrosion, and has improved the yield and quality of product greatly.Shandong University Of Yantai has has successfully researched and developed reaction and distillation United Technologies with solid catalyst on the basis of Japanese technology, at present, domestic have only fewer companies with its industrialization.This method adopts a tower process, atmospheric operation in the tower, and catalyzer is filled in the tower, and reaction and rectifying are all carried out in tower.But this technology can only be produced methylal concentration at 85～92% methylal product, can not obtain the product of high density, has so just limited the application of methylal in some fields.
The utility model content
The technical problems to be solved in the utility model is: in order to solve the shortcoming of above-mentioned existence, provide a kind of high density methylal synthesis under normal pressure tower.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of high density methylal synthesis under normal pressure tower, has the tubular tower body, the bottom of tower body has been the skirt of fixed action, the skirt top of tower body is tower still section, the upper end of tower still section is disposed with the first structured packing section, the first catalyst filling section, the second catalyst filling section and the second structured packing section from lower to upper in the tower body, the upper end of every section filler all is provided with groove type distributor, the lower end of two-stage catalytic agent filler is provided with liquid trap, and the lower end of the second structured packing section is provided with liquid trap.
Further, offer opening for feed and discharge port on the described tower body, opening for feed comprises first gas feed and second gas feed that is opened in tower still section upper side, be opened in first liquid inlet opening between the first structured packing section and the first catalyst filling section, be opened in second liquid inlet opening between the first catalyst filling section and the second catalyst filling section, be opened in first reflux inlet between the second catalyst filling section and the second structured packing section, be opened in second reflux inlet of second structured packing section upper end, discharge port comprises first liquid exit and second liquid exit that is opened in tower still section bottom, be opened in the wastewater outlet of tower still section bottom and the pneumatic outlet of cat head, according to the import and export turnover material of correspondence, raise the efficiency.
The beneficial effects of the utility model are, high density methylal synthesis under normal pressure tower of the present utility model by the acting in conjunction of liquid trap and groove type distributor, makes the liquid of every section filler bottom evenly distribute again, the abundant wetting filling surface of liquid of redistribution reaches the optimum response rectification effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure 1, tower body, 11, first gas feed, 12, second gas feed, 13, first liquid inlet opening, 14, second liquid inlet opening, 15, first reflux inlet, 16, second reflux inlet, 17, first liquid exit, 18, second liquid exit, 19, wastewater outlet, 110, pneumatic outlet, 2, skirt, 3, tower still section, 41, the first structured packing section, 42, the second structured packing section, 51, the first catalyst filling section, 52, the second catalyst filling section, 6, groove type distributor, 7, liquid trap.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The high density methylal synthesis under normal pressure tower of preferred forms as shown in Figure 1, has tubular tower body 1, the bottom of tower body 1 has been the skirt 2 of fixed action, skirt 2 tops of tower body 1 are tower still section 3, the upper end of tower still section 3 is disposed with the first structured packing section 41, the first catalyst filling section 51, the second catalyst filling section 52 and the second structured packing section 42 from lower to upper in the tower body 1, the upper end of every section filler all is provided with groove type distributor 6, the lower end that the lower end of two-stage catalytic agent filler is provided with liquid trap 7, the second structured packing sections 42 is provided with liquid trap 7.Offer opening for feed and discharge port on the tower body 1, opening for feed comprises first gas feed 11 and second gas feed 12 that is opened in tower still section 3 upper side, be opened in first liquid inlet opening 13 between the first structured packing section 41 and the first catalyst filling section 51, be opened in second liquid inlet opening 14 between the first catalyst filling section 51 and the second catalyst filling section 52, be opened in first reflux inlet 15 between the second catalyst filling section 52 and the second structured packing section 42, be opened in second reflux inlet 16 of the second structured packing section, 42 upper ends, discharge port comprises first liquid exit 17 and second liquid exit 18 that is opened in tower still section 3 bottoms, is opened in the wastewater outlet 19 of tower still section 3 bottoms and the pneumatic outlet 110 of cat head.
The mixed solution that contains methylal that comes from reactor is entered in the tower body 1 by second liquid inlet opening 14, because the effect of catalyst filling, make in the mixed solution unreacted methanol and formaldehyde continue reaction and generate methylal, methyl alcohol is entered in the tower body 1 by first liquid inlet opening 13 and mixes with mixed solution, mixed solution flows downward and flows into first reboiler and second liquid exit, 18 inflows, second reboiler by first liquid exit 17 at the bottom of the tower, first reboiler is the liquid that the thermal source heating flows into the low-pressure steam, the liquid that the waste heat heating that second reboiler produces in producing with postorder flows into, mixed solution is heated to form gas in reboiler, gas is entered in the tower body 1 by first gas feed 11 and second gas feed 12.Gas in the tower body 1 moves from lower to upper, and the phegma under the overhead streams moves from top to bottom, because the effect of filler and phegma makes final overhead gas export the azeotrope that 110 effluent airs are methylal and methyl alcohol.Azeotrope all is condensed into lime set after being flowed out by cat head, and lime set part after pump boosts is returned in the tower from second reflux inlet 16 as phegma, and a part of in addition lime set is carried out the produced simultaneously phegma of compression rectification and entered in the tower from first reflux inlet 15.In tower body 1, be provided with four sections fillers, filler is followed successively by first structured packing from the bottom up, first catalyst filling, second catalyst filling and second structured packing, the top of every section filler is provided with groove type distributor 6, first catalyst filling, second catalyst filling and the second structured packing bottom are provided with liquid trap 7, can collect and evenly distribution again the liquid of every section filler bottom by liquid trap 7 and groove type distributor 6, by the abundant wetting filling surface of liquid after the redistribution, make that the tower still at the bottom of the final tower is the waste water that contains formaldehyde, waste water is drawn out of from wastewater outlet 19 and delivers to wastewater trough, and the final output of cat head is the azeotrope of methylal and methyl alcohol, azeotrope all is condensed into lime set, the content of methylal is 85%～92% in the lime set, wherein a part of lime set is returned in the tower body 1 as phegma, a part also can be taken out as product according to market situation as his raw material of pressurization.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.
Claims (2)
1. high density methylal synthesis under normal pressure tower, it is characterized in that: have tubular tower body (1), the bottom of tower body (1) has been the skirt (2) of fixed action, the skirt top of tower body (1) is tower still section (3), the upper end of tower body (1) interior tower still section (3) is disposed with the first structured packing section (41) from lower to upper, the first catalyst filling section (51), the second catalyst filling section (52) and the second structured packing section (42), the upper end of every section filler all is provided with groove type distributor (6), the lower end of two-stage catalytic agent filler is provided with liquid trap (7), and the lower end of the second structured packing section (42) is provided with liquid trap (7).
2. high density methylal synthesis under normal pressure tower according to claim 1, it is characterized in that: described tower body offers opening for feed and discharge port on (1), opening for feed comprises first gas feed (11) and second gas feed (12) that is opened in tower still section (3) upper side, be opened in first liquid inlet opening (13) between the first structured packing section (41) and the first catalyst filling section (51), be opened in second liquid inlet opening (14) between the first catalyst filling section (51) and the second catalyst filling section (52), be opened in first reflux inlet (15) between the second catalyst filling section (52) and the second structured packing section (42), be opened in second reflux inlet (16) of the second structured packing section (42) upper end, discharge port comprises first liquid exit (17) and second liquid exit (18) that is opened in tower still section (3) bottom, is opened in the wastewater outlet (19) of tower still section (3) bottom and the pneumatic outlet (110) of cat head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205076822U CN201770628U (en) | 2010-08-27 | 2010-08-27 | High-concentration hoxym ethane normal-pressure reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205076822U CN201770628U (en) | 2010-08-27 | 2010-08-27 | High-concentration hoxym ethane normal-pressure reaction tower |
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| Publication Number | Publication Date |
|---|---|
| CN201770628U true CN201770628U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205076822U Expired - Fee Related CN201770628U (en) | 2010-08-27 | 2010-08-27 | High-concentration hoxym ethane normal-pressure reaction tower |
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| Country | Link |
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| CN (1) | CN201770628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190103A (en) * | 2014-01-06 | 2014-12-10 | 山东辰信新能源有限公司 | Reactive distillation column and device for preparing methylal |
-
2010
- 2010-08-27 CN CN2010205076822U patent/CN201770628U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190103A (en) * | 2014-01-06 | 2014-12-10 | 山东辰信新能源有限公司 | Reactive distillation column and device for preparing methylal |
| CN104190103B (en) * | 2014-01-06 | 2016-06-08 | 山东辰信新能源有限公司 | A kind of reactive distillation column preparing dimethoxym ethane and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU KAIMAO CHEMICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU HENGMAO MACHINERY MANUFACTURE CO., LTD. Effective date: 20140423 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213169 CHANGZHOU, JIANGSU PROVINCE TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140423 Address after: Xuelang Street Ge Dai Binhu District of Jiangsu Province in 214000 communities in Wuxi City Patentee after: Jiangsu Kaimao Chemical Technology Co., Ltd. Address before: 213169, Jiangsu province Changzhou city Wujin District snow town industrial concentration area Patentee before: Jiangsu Hengmao Machine Manufacture Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20190827 |