CN203498281U - Hydrogen replenishing system used in crude benzene refining - Google Patents
Hydrogen replenishing system used in crude benzene refining Download PDFInfo
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- CN203498281U CN203498281U CN201320635097.4U CN201320635097U CN203498281U CN 203498281 U CN203498281 U CN 203498281U CN 201320635097 U CN201320635097 U CN 201320635097U CN 203498281 U CN203498281 U CN 203498281U
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- hydrogen
- compressor
- refining
- crude benzene
- replenishing system
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Abstract
The utility model relates to a hydrogen supplying system and particularly relates to a hydrogen replenishing system used in crude benzene refining. The hydrogen replenishing system comprises a hydrogen buffer tank, wherein an outlet of the hydrogen buffer tank is connected with a fine benzene device by a compressor, and a feeding pipe is arranged on the hydrogen buffer tank and is connected with three branch pipes; a chlor-alkali production byproduct hydrogen tank is sequentially connected with the first branch pipe through the compressor, a dryer and a filter, a cyclohexanol device and a tail gas tank of a KA oil (mixture of cyclohexanone and cyclohexanol) device are connected with the second branch pipe through the compressor and an adsorption tower, and the hydrogen tank is connected with the third branch pipe. Due to the implementation of the hydrogen replenishing system used in the crude benzene refining, not only is the production cost greatly lowered, but also the immense wasting of precious hydrogen energy is avoided; the hydrogen replenishing system used in the crude benzene refining has good economic and social benefits.
Description
technical field
The utility model relates to a kind of hydrogen supply system, is specifically related to a kind of crude benzene refining hydrogen make-up system.
background technology
The refining crude benzol of Litol method high-temperature catalytic hydrogenation technique is conventional method at present, but this technique is larger to the consumption of hydrogen, and every purified petroleum benzin hydrogen unit consumption is 355NM
3, and the hydrogen unit price of directly buying is 1.75 yuan/cube.The refining benzene device hydrogen usage of a year just reaches approximately 1,600 ten thousand standard cubes, and production cost is high.
summary of the invention
The purpose of this utility model is to provide a kind of crude benzene refining hydrogen make-up system that makes hydrogen cost.
For achieving the above object, the utility model is by the following technical solutions:
A crude benzene refining hydrogen make-up system, comprises hydrogen gas buffer, and the outlet of hydrogen gas buffer is connected with refining benzene device by compressor, and hydrogen gas buffer is provided with inlet pipe, and inlet pipe is connected with three road arms; Chlor-alkali production coproduct hydrogen gas tank is connected with first via arm by compressor, moisture eliminator, strainer successively, and hexalin device is connected with the second road arm by adsorption tower with the tail gas tank of KA oil device, and hydrogen gas tank is connected with Third Road arm.
Described moisture eliminator is GW adsorption type system of non heated regeneration dryer.
On described three road arms, be respectively equipped with valve.
The utility model changes original single hydrogen supply pipeline, adopts the required hydrogen of form supply refining benzene device of three road arms, the about 3000NM of chlor-alkali production by-product
399.9% hydrogen of/h, through compressor boost, moisture eliminator is removed water, strainer obtains dry hydrogen after removing solid particulate, through first via arm, enters hydrogen gas buffer; The tail gas of hexalin device and KA oil device is first stored in tail gas tank, then through adsorption tower by hexanaphthene, tetrahydrobenzene, benzene, H
2the Impurity removals such as O fall, and more than hydrogen purity reaches 97vol%, hexanaphthene, tetrahydrobenzene, benzene content are all lower than 100ppm, H
2o content, lower than 30ppm, reaches the condition of refining benzene device hydrogen make-up, through the second arm, enters hydrogen gas buffer; The hydrogen of buying enters hydrogen gas buffer through Third Road arm.On three road arms, be respectively equipped with valve, can control respectively hydrogen source, during the utility model operation, under normal circumstances, all use the hydrogen of first and second road arm, the hydrogen that Third Road arm is bought is only used as the urgent hydrogen that regulates.
Enforcement of the present utility model, the hydrogen output that the by-product hydrogen of chlor-alkali production, hexalin device exhaust, KA oil device exhaust reclaim can reach 2000NM
3more than/h, can meet the needs of refining benzene device completely, and price is well below the price of direct purchase hydrogen, not only greatly reduces production cost, and has avoided the huge waste of valuable hydrogen as energy source, there is good economic and social benefit.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
embodiment
Crude benzene refining hydrogen make-up system as shown in Figure 1, comprises hydrogen gas buffer 4, and the outlet of hydrogen gas buffer 4 is connected with refining benzene device 6 by compressor 5, and hydrogen gas buffer 5 is provided with inlet pipe, and inlet pipe is connected with three road arms, on three road arms, is respectively equipped with valve; Chlor-alkali production coproduct hydrogen gas tank 14 is connected with first via arm 1 by compressor 11, GW adsorption type system of non heated regeneration dryer 12, strainer 13 successively, hexalin device is connected with the second road arm 2 by compressor 21, adsorption tower 22 with the tail gas tank 23 of KA oil device, and hydrogen gas tank 31 is connected with Third Road arm 3.
Under normal circumstances, when the utility model is used, all use first via arm 1, the hydrogen of the second road arm 2, open first via arm 1, valve on the second road arm 2, close the valve of Third Road arm 3, chlor-alkali production by-product hydrogen boosts through compressor 11, GW adsorption type system of non heated regeneration dryer 12 is removed water, strainer 13 enters hydrogen gas buffer 4 after removing solid particulate, the tail gas of hexalin device and KA oil device boosts through compressor 21, after adsorption tower 22 removal of impurities, enter hydrogen gas buffer 4, hydrogen in hydrogen gas buffer 4 is sent into refining benzene device 6, while needing urgent adjusting hydrogen, open the valve of Third Road arm 3.
Claims (3)
1. a crude benzene refining hydrogen make-up system, is characterized in that: comprise hydrogen gas buffer, the outlet of hydrogen gas buffer is connected with refining benzene device by compressor, and hydrogen gas buffer is provided with inlet pipe, and inlet pipe is connected with three road arms; Chlor-alkali production coproduct hydrogen gas tank is connected with first via arm by compressor, moisture eliminator, strainer successively, and hexalin device is connected with the second road arm by compressor, adsorption tower with the tail gas tank of KA oil device, and hydrogen gas tank is connected with Third Road arm.
2. crude benzene refining hydrogen make-up system as claimed in claim 1, is characterized in that: described moisture eliminator is GW adsorption type system of non heated regeneration dryer.
3. crude benzene refining hydrogen make-up system as claimed in claim 1 or 2, is characterized in that: on described three road arms, be respectively equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635097.4U CN203498281U (en) | 2013-10-15 | 2013-10-15 | Hydrogen replenishing system used in crude benzene refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635097.4U CN203498281U (en) | 2013-10-15 | 2013-10-15 | Hydrogen replenishing system used in crude benzene refining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498281U true CN203498281U (en) | 2014-03-26 |
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ID=50329278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320635097.4U Expired - Fee Related CN203498281U (en) | 2013-10-15 | 2013-10-15 | Hydrogen replenishing system used in crude benzene refining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280013A (en) * | 2017-07-19 | 2019-01-29 | 山东侨昌化学有限公司 | A method of automatically switching hydrogenation source |
-
2013
- 2013-10-15 CN CN201320635097.4U patent/CN203498281U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280013A (en) * | 2017-07-19 | 2019-01-29 | 山东侨昌化学有限公司 | A method of automatically switching hydrogenation source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20211015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |