CN1654315A - Safe production technique for hydrogen dioxide - Google Patents
Safe production technique for hydrogen dioxide Download PDFInfo
- Publication number
- CN1654315A CN1654315A CN 200510052225 CN200510052225A CN1654315A CN 1654315 A CN1654315 A CN 1654315A CN 200510052225 CN200510052225 CN 200510052225 CN 200510052225 A CN200510052225 A CN 200510052225A CN 1654315 A CN1654315 A CN 1654315A
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- CN
- China
- Prior art keywords
- fixed bed
- working fluid
- hydride
- liquid
- bed
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention discloses one kind of anthraquinone process for producing hydrogen peroxide. The anthraquinone process features that partial hydrogenised liquid is circulated to the top of the fixed bed for mixing with work liquid before re-entering the fixed bed. Hydrogenised liquid is utilized to eliminate O2 produced by the decomposition of H2O2 in the fixed bed timely can avoid the accumulation of O2 in the bed top, and this ensures the safety of the production process, reduces the radial temperature difference inside the fixed bed and is favorable to the action of the active catalyst.
Description
Technical field
The present invention relates to hydrogen peroxide (H
2O
2) production technique.
Background technology
At known anthraquinone production H
2O
2In the technology, the working fluid that contains anthraquinone derivative and solvent enters fixed bed with hydrogen, and in the presence of catalyzer, the working fluid that reaction obtains is called hydride; Hydride enters oxidizing tower, and by oxygen (or airborne oxygen) oxidation, the working fluid that obtains is called oxidation liquid, promptly contains H in tower
2O
2Working fluid; Oxidation liquid enters the extraction tower bottom, with the deionized water counter current contact extraction from top of tower, by obtaining H at the bottom of the tower
2O
2The aqueous solution is called raffinate from the effusive working fluid of top of tower, promptly contains small amount of H
2O
2Working fluid; Raffinate becomes cycle working fluid behind equipment such as separator, scale tank, drying tower, alkali separator, this cycle working fluid is flowed through and entered storage tank behind the carclazyte bed and recycle.Though flowing through, cycle working fluid can make wherein contained H when drying tower, carclazyte bed
2O
2Decompose and reduce, but can not remove these H fully
2O
2To bring the fixed bed top that is under the hydrogen atmosphere into working fluid.In the presence of catalyzer, H
2O
2Decompose and produce O
2, and constantly accumulation.Because H appears in the fixed bed top
2, O
2Simultaneous situation is brought great potential safety hazard to production.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of safety in production H
2O
2Technology.
Technical scheme of the present invention is at known anthraquinone production H
2O
2In the technology, partial hydrogenation liquid is circulated back to fixed bed top, and enters fixed bed after a working fluid that enters the bed top mixes.
Because hydride and working fluid enter the fixed bed top with form of mixtures, contained micro-H in working fluid
2O
2During decomposition, hydrogen anthraquinone and H in the hydride
2O
2Decompose the O that produces
2Reaction and be consumed and remove, thus avoided fixed bed to eject existing H
2, O
2Simultaneous situation can guarantee the safety of production process like this.
Technology of the present invention, the hydride internal circulating load is generally 5%～100% of working fluid flow, and the preferred cycle amount is 20%～60%.
Hydrogen anthraquinone and O in the hydride
2Reaction mechanism following (R is C in the reaction formula
2～C
5Alkane)
This serial reaction can carry out in the short period of time continuously at the utmost point, until O
2Depleted.
Utilize hydride in time to remove H
2O
2In fixed bed, decompose the O that produces
2, avoid O
2Accumulation at the bed top, thus the safety that guarantees production process is carried out.
Technology of the present invention has following beneficial effect:
1. provide safeguard for safety in production;
2. by the adjusting of hydride internal circulating load, make plant capacity keep stable;
3. enter fixed bed together because of circulation hydride and working fluid, increased the liquid flow rate in the fixed bed, thereby can reduce the radial temperature difference in the fixed bed, can reduce axial temperature difference again; Liquid flow rate increases the H that in time takes away the catalyst surface generation simultaneously
2O
2, help the performance of catalyst activity.
Description of drawings
Accompanying drawing is a process flow diagram.
Wherein: the 1st, the working fluid storage tank
The 2nd, the work liquid pump
The 3rd, interchanger
The 4th, fixed bed
The 5th, gas-liquid separator
The 6th, circulation hydrogenation liquid pump
The 7th, the hydride storage tank
Embodiment
The present invention realizes in the following way: the working fluid in the cycle working fluid storage tank 1 is sent into interchanger 3 by work liquid pump 2, and working fluid gives heat and enter fixed bed 4 to certain temperature.The hydride that working fluid and hydrogen obtain behind the bed internal reaction enters gas-liquid separator 5.Tell partial hydrogenation liquid by gas-liquid separator 5 and turn back to the fixed bed top through circulation hydrogenation liquid pump 6, all the other hydrides enter hydride storage tank 7.
Embodiment 1
In hydrogen peroxide manufacture device running, working fluid flow 12m
3/ h, hydride internal circulating load 6m
3/ h, fixing overhead pressure 0.3MPa, 55～64 ℃ of hydride drop temperatures install continuous safe handling 2580 hours, working fluid hydrogenation efficiency 7.8～8.5g/l.
Embodiment 2
In hydrogen peroxide manufacture device running, working fluid flow 220m
3/ h, hydride internal circulating load 50m
3/ h, fixing overhead pressure 0.3MPa, 57～65 ℃ of hydride drop temperatures install continuous safe handling 3200 hours, working fluid hydrogenation efficiency 7.5～8.5g/l.
Claims (3)
1. the technology of a process for prepairng hydrogen peroxide by anthraquinone is characterized in that partial hydrogenation liquid is circulated back to the fixed bed top, and enters fixed bed after a working fluid that enters the bed top mixes.
2. technology according to claim 1 is characterized in that the hydride internal circulating load is 5%～100% of a working fluid flow.
3. technology according to claim 1 and 2 is characterized in that the hydride internal circulating load is 20%～60% of a working fluid flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510052225 CN1654315A (en) | 2005-01-31 | 2005-01-31 | Safe production technique for hydrogen dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510052225 CN1654315A (en) | 2005-01-31 | 2005-01-31 | Safe production technique for hydrogen dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1654315A true CN1654315A (en) | 2005-08-17 |
Family
ID=34894543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510052225 Pending CN1654315A (en) | 2005-01-31 | 2005-01-31 | Safe production technique for hydrogen dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1654315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296860B (en) * | 2005-08-31 | 2012-08-29 | Fmc有限公司 | Auto-oxidation production of hydrogen peroxide via hydrogenation in a microreactor |
| CN105621369A (en) * | 2014-11-03 | 2016-06-01 | 中国石油化工股份有限公司 | Method for improving oxidation yield in production of hydrogen peroxide by anthraquinone method |
| CN109678120A (en) * | 2017-10-19 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of hydrogenation reactor and method for hydrogenation of hydrogen dioxide solution production by anthraquinone process |
-
2005
- 2005-01-31 CN CN 200510052225 patent/CN1654315A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296860B (en) * | 2005-08-31 | 2012-08-29 | Fmc有限公司 | Auto-oxidation production of hydrogen peroxide via hydrogenation in a microreactor |
| CN105621369A (en) * | 2014-11-03 | 2016-06-01 | 中国石油化工股份有限公司 | Method for improving oxidation yield in production of hydrogen peroxide by anthraquinone method |
| CN105621369B (en) * | 2014-11-03 | 2017-10-03 | 中国石油化工股份有限公司 | A kind of method for improving hydrogen dioxide solution production by anthraquinone process oxidization-hydrogenation ratio |
| CN109678120A (en) * | 2017-10-19 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of hydrogenation reactor and method for hydrogenation of hydrogen dioxide solution production by anthraquinone process |
| CN109678120B (en) * | 2017-10-19 | 2020-06-09 | 中国石油化工股份有限公司 | Hydrogenation reactor and hydrogenation method for producing hydrogen peroxide by anthraquinone process |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |