CN102516008A - New process for oxygen-enriched development for oxo-dehydrogenation - Google Patents
New process for oxygen-enriched development for oxo-dehydrogenation Download PDFInfo
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- CN102516008A CN102516008A CN2011104244745A CN201110424474A CN102516008A CN 102516008 A CN102516008 A CN 102516008A CN 2011104244745 A CN2011104244745 A CN 2011104244745A CN 201110424474 A CN201110424474 A CN 201110424474A CN 102516008 A CN102516008 A CN 102516008A
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Abstract
The invention relates to a new process for oxygen-enriched development for oxo-dehydrogenation, belonging to the field of chemical process. The new process is characterized by comprising a first section of charge mixer, a first section of reactor, the first stage of a second section of charge mixer, the second stage of the second section of charge mixer and a second section of reactor, wherein the first section of charge mixer, the first section of reactor, the first stage of the second section of charge mixer, the second stage of the second section of charge mixer and the second section of reactor are orderly connected via pipelines. The conversion rate of reacted butylene is increased by three percentage points and the conversion rate of butadiene is selectively increased by four percentage points via the increase of oxygen in air. The percentage of nitrogen in air is decreased by 50%, so that the amount of nitrogen at the outlet of the reactor is greatly reduced, and the usage amount of C6 oil in oil absorption device is reduced by 50%, thereby increasing production efficiency.
Description
Technical field
The present invention relates to a kind of oxydehydrogenation oxygen enrichment exploitation novel process, belong to the chemical technique field.
Background technology
In the production process of propadiene, all be that device charging in the past generates divinyl by airborne oxygen and butene reaction at present, oxygen level is normally about 21% in the air; Reactor outlet a nitrogen content reaches about 65%; Make postorder oil absorption unit, load increases, and causes production efficiency not high.
Summary of the invention
According to the deficiency of prior art, the technical problem that the present invention will solve is: a kind of oxydehydrogenation oxygen enrichment exploitation novel process is provided, improves the content of oxygen in the air, reduce a nitrogen content of oxidative dehydrogenation reactor outlet, reduce oily absorption unit load.
The technical solution adopted for the present invention to solve the technical problems is: a kind of oxydehydrogenation oxygen enrichment exploitation novel process is provided; It is characterized in that comprising: a section feeding mixing tank, first stage reactor, two section feeding mixing tank one-levels, two section feeding mixing tank secondary and second stage reactors, a section feeding mixing tank, first stage reactor, two section feeding mixing tank one-levels, two section feeding mixing tank secondarys are connected through pipeline with second stage reactor successively.
The inlet mouth of a described section feeding mixing tank gets into steam, air and butylene.
The inlet mouth of described two section feeding mixing tank one-levels gets into dehydration air and butylene.
The inlet mouth of described two section feeding mixing tank secondarys gets into air.
The invention has the beneficial effects as follows: oxygen increases in the air, makes the reaction butene conversion improve three percentage points, and the divinyl selectivity improves four percentage points.Nitrogen per-cent reduces by 50% in the air, and the reactor outlet nitrogen amount is significantly reduced, and makes oily absorption unit carbon six oily usage quantitys reduce 50%, has improved production efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention;
1 is a section feeding mixing tank among the figure; 2 is first stage reactor; 3 is two section feeding mixing tank one-levels; 4 is two section feeding mixing tank secondarys; 5 is second stage reactor.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done and to be further described:
As shown in Figure 1; The present invention includes: a section feeding mixing tank 1, first stage reactor 2, two section feeding mixing tank one-levels 3, two section feeding mixing tank secondarys 4 and second stage reactor 5, one section feeding mixing tanks 1, first stage reactor 2, two section feeding mixing tank one-levels 3, two section feeding mixing tank secondarys 4 and second stage reactor 5 are connected through pipeline successively.
The inlet mouth of one section feeding mixing tank 1 gets into steam, air and butylene.
The inlet mouth of two section feeding mixing tank one-levels 3 gets into dehydration air and butylene.
The inlet mouth of two section feeding mixing tank secondarys 4 gets into air.
Claims (4)
1. an oxydehydrogenation oxygen enrichment is developed novel process; It is characterized in that comprising: a section feeding mixing tank (1), first stage reactor (2), two section feeding mixing tank one-levels (3), two section feeding mixing tank secondarys (4) and second stage reactor (5), a section feeding mixing tank (1), first stage reactor (2), two section feeding mixing tank one-levels (3), two section feeding mixing tank secondarys (4) are connected through pipeline with second stage reactor (5) successively.
2. oxydehydrogenation oxygen enrichment exploitation novel process according to claim 1 is characterized in that the inlet mouth of a described section feeding mixing tank (1) gets into steam, air and butylene.
3. oxydehydrogenation oxygen enrichment exploitation novel process according to claim 1 is characterized in that the inlet mouth of described two section feeding mixing tank one-levels (3) gets into dehydration air and butylene.
4. oxydehydrogenation oxygen enrichment exploitation novel process according to claim 1 is characterized in that the inlet mouth of described two section feeding mixing tank secondarys (4) gets into air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104244745A CN102516008A (en) | 2011-12-16 | 2011-12-16 | New process for oxygen-enriched development for oxo-dehydrogenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104244745A CN102516008A (en) | 2011-12-16 | 2011-12-16 | New process for oxygen-enriched development for oxo-dehydrogenation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102516008A true CN102516008A (en) | 2012-06-27 |
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ID=46287152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104244745A Pending CN102516008A (en) | 2011-12-16 | 2011-12-16 | New process for oxygen-enriched development for oxo-dehydrogenation |
Country Status (1)
| Country | Link |
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| CN (1) | CN102516008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9718745B2 (en) | 2013-01-30 | 2017-08-01 | China Petroleum & Chemical Corporation | Premixer, radially fixed bed reactor, reaction system for oxidative dehydrogenation |
| US10526258B2 (en) | 2016-09-23 | 2020-01-07 | Wison Engineering Ltd. | Process for producing butadiene by oxidative dehydrogenation of butylene |
| US11078135B2 (en) | 2018-12-10 | 2021-08-03 | Korea Kumho Petrochemical Co., Ltd. | System for producing 1,3-butadiene and method of producing 1,3-butadiene using the system |
-
2011
- 2011-12-16 CN CN2011104244745A patent/CN102516008A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9718745B2 (en) | 2013-01-30 | 2017-08-01 | China Petroleum & Chemical Corporation | Premixer, radially fixed bed reactor, reaction system for oxidative dehydrogenation |
| US10526258B2 (en) | 2016-09-23 | 2020-01-07 | Wison Engineering Ltd. | Process for producing butadiene by oxidative dehydrogenation of butylene |
| US11078135B2 (en) | 2018-12-10 | 2021-08-03 | Korea Kumho Petrochemical Co., Ltd. | System for producing 1,3-butadiene and method of producing 1,3-butadiene using the system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |