CN106430194B - High-purity carbon dioxide equipment for purifying - Google Patents
High-purity carbon dioxide equipment for purifying Download PDFInfo
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- CN106430194B CN106430194B CN201610884061.8A CN201610884061A CN106430194B CN 106430194 B CN106430194 B CN 106430194B CN 201610884061 A CN201610884061 A CN 201610884061A CN 106430194 B CN106430194 B CN 106430194B
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- carbon
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- dioxide
- carbon dioxide
- purifying
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- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound 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O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 54
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 54
- 238000000746 purification Methods 0.000 claims abstract description 28
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- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims description 4
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 2
- 238000004821 distillation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
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- 230000003647 oxidation Effects 0.000 abstract description 2
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- 241000790917 Dioxys <bee> Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
A kind of high-purity carbon dioxide equipment for purifying, carbon dioxide purification channel including connecting carbon dioxide storage tank, it is characterized by: liquefier, catalytic bed, adsorbent bed, forecooler are successively passed through in carbon dioxide purification channel, finally in the middle part of connection rectifying column, rectifier is equipped with the refrigerating channel that inside is connected with low temperature nitrogen, the output end of refrigerating channel passes through liquefier, and emptying channel is equipped at the top of rectifying column, and forecooler is passed through in emptying channel.The present invention provides a kind of high-purity carbon dioxide equipment for purifying, pass through high-purity carbon dioxide catalysis oxidation absorption distillation technology, industrial grade carbon-dioxide is passed through into catalytic adsorption, remove oxygen, nitrogen, hydrogen, carbon monoxide, hydrocarbons, rectification and purification is carried out after cryogenic freezing, obtains high purity liquid carbon dioxide.
Description
Technical field
The invention belongs to gas purification technical fields, refer in particular to a kind of high-purity carbon dioxide equipment for purifying.
Background technique
Carbon dioxide is technical grade, edible grade carbon-dioxide currently on the market, and purity is up to 39, is unable to satisfy electricity
Son, demand of the medical industry to high-purity carbon dioxide.
Summary of the invention
The object of the present invention is to provide a kind of high-purity carbon dioxide equipment for purifying, are inhaled by high-purity carbon dioxide catalysis oxidation
Industrial grade carbon-dioxide is passed through catalytic adsorption, oxygen, nitrogen, hydrogen, carbon monoxide, hydrocarbons is removed, through low temperature by attached distillation technology
Rectification and purification is carried out after freezing, obtains high purity liquid carbon dioxide.
The object of the present invention is achieved like this: a kind of high-purity carbon dioxide equipment for purifying, including connection carbon dioxide storage
The carbon dioxide purification channel of tank, it is characterised in that: carbon dioxide purification channel successively pass through liquefier, catalytic bed, adsorbent bed,
Forecooler finally connects in the middle part of rectifying column, and the bottom of rectifying column is provided with the discharge line of the carbon dioxide after purification, rectifying column
Top is equipped with the refrigerating channel that inside is connected with low temperature nitrogen, and the output end of refrigerating channel passes through liquefier, is equipped at the top of rectifying column
Channel is emptied, forecooler is passed through in emptying channel.
Preferably, the carbon dioxide purification channel again passes by liquefier after forecooler, finally connects rectifying column.
Preferably, the rectifier bottoms are equipped with reboiler, and discharge line is equipped with sampling valve.
Preferably, catalytic bed entrance is led in the carbon dioxide purification channel again after heat exchanger, electric heater；Dioxy
Change after carbon purification channel exports out from catalytic bed and again pass by heat exchanger, then through subcooler, finally leads to adsorbent bed.
Preferably, accurate filter is equipped between the adsorbent bed and forecooler.
Preferably, there are four the adsorbent beds, four adsorbent beds connected by pipeline and valve be connected in series with each other or
The multiple adsorbent bed group being connected in parallel with each other.
Preferably, the carbon dioxide purification channel is equipped with flowmeter.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
1, carbon dioxide is purified by catalytic bed, adsorbent bed, rectifying column, produces 59 or more (i.e. 99.999%)
High-purity carbon dioxide；
2, present low temperature nitrogen refrigerating channel is substituted for by original refrigerator at the top of rectifying column, low temperature nitrogen can be by liquid
The top outlet of nitrogen storage tank obtains, and realizes that resource makes full use of, reduces energy consumption；
3, refrigerating channel passes through liquefier, and forecooler is passed through in emptying channel, and remaining cooling capacity is recycled.
Detailed description of the invention
Fig. 1 is structure principle chart of the invention.
Detailed description of the invention: 1, channel is purified；2, refrigerating channel；3, channel is emptied；4, liquefier；5, forecooler；6, electric heating
Device；7, discharge line.
Specific embodiment
With specific embodiment, the invention will be further described with reference to the accompanying drawing, referring to Fig. 1:
A kind of high-purity carbon dioxide equipment for purifying, the carbon dioxide purification channel 1 including connecting carbon dioxide storage tank, dioxy
Change carbon purification channel 1 successively by liquefier 4, catalytic bed, (four adsorbent beds are connected into four adsorbent beds by pipeline and valve
The multiple adsorbent bed group for being connected in series with each other or being connected in parallel with each other), accurate filter, forecooler 5, finally connect rectifying column in
Portion, rectifier are equipped with the refrigerating channel 2 that inside is connected with low temperature nitrogen, and the output end of refrigerating channel 2 passes through liquefier 4, essence
It evaporates top of tower and is equipped with emptying channel 3, forecooler 5 is passed through in emptying channel 3.Rectifier bottoms are equipped with reboiler, and reboiler bottom connects
There is discharge line 7, discharge line 7 is equipped with sampling valve.
Wherein, carbon dioxide purification channel 1 again passes by liquefier 4 after forecooler 5, finally connects rectifying column；Two
Catalytic bed entrance is led to after heat exchanger, electric heater 6 in carbonoxide purification channel 1 again；Carbon dioxide purification channel 1 is from catalysis
Bed again passes by heat exchanger after exporting out, then through subcooler, finally leads to adsorbent bed.
The working principle of above scheme is as follows:
1, carbon dioxide purification channel 1 connects the lower carbon dioxide storage tank of purity, and purification channel 1 first passes through liquefier 4
Realize heat exchange, elevated carbon dioxide gas temperature；
2, catalysis reaction: purification channel 1 makes internal gas heat up again by heat exchanger, electric heater 6, is urged with meeting
Change reaction condition, comes out rear high-temperature gas from catalytic bed and flow back into heat exchanger by purifying channel 1 again, by heat recovery, finally
Cool down through subcooler；
3, adsorb: four adsorbent beds are passed through in purification channel 1, and impurity is gradually adsorbed, then are filtered by accurate filter miscellaneous
Matter；
4, forecooler 5 and liquefier 4 will be cooled to step by step liquid by the carbon dioxide gas of catalytic action and suction-operated
Change, finally flows into rectifying column, a low temperature nitrogen pipeline can also be led to, individually on liquefier 4 to supplement carbon dioxide gas
Liquefy institute's chilling requirement；
5, liquid carbon dioxide is heated to gaseous state rising by the reboiler of rectifier bottoms, the refrigerating channel at the top of rectifying column
2 carbon dioxide gas condensation liquefactions by rising, the lower impurity of boiling point is then discharged at the top of rectifying column with gaseous state, and is passed through
Forecooler 5 is by cold recovery.
6, the sampling valve on reboiler bottom portion discharge tube 7 detects carbon dioxide purity, such as meets the requirements, then opens discharge
Valve on pipeline 7 connects product storage tank.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (5)
1. a kind of high-purity carbon dioxide equipment for purifying, the carbon dioxide purification channel (1) including connecting carbon dioxide storage tank is special
Sign is: carbon dioxide purification channel (1) successively passes through liquefier (4), catalytic bed, adsorbent bed, forecooler (5), finally connects
In the middle part of rectifying column, the bottom of rectifying column is provided with the discharge line (7) of the carbon dioxide after purification, and rectifier is equipped with inside
It is connected with the refrigerating channel (2) of low temperature nitrogen, the output end of refrigerating channel (2) passes through liquefier (4), emptying is equipped at the top of rectifying column
Forecooler (5) are passed through in channel (3), emptying channel (3)；The carbon dioxide purification channel (1) passes through again after forecooler (5)
Liquefier (4) are crossed, rectifying column is finally connected；The carbon dioxide purification channel (1) after heat exchanger, electric heater (6) again
Lead to catalytic bed entrance；Carbon dioxide purification channel (1) again passes by heat exchanger after exporting out from catalytic bed, then through being subcooled
But device finally leads to adsorbent bed.
2. high-purity carbon dioxide equipment for purifying according to claim 1, it is characterised in that: the rectifier bottoms are equipped with again
Device is boiled, discharge line (7) is equipped with sampling valve.
3. high-purity carbon dioxide equipment for purifying according to claim 2, it is characterised in that: the adsorbent bed and forecooler
(5) accurate filter is equipped between.
4. high-purity carbon dioxide equipment for purifying according to claim 3, it is characterised in that: there are four the adsorbent beds, and four
A adsorbent bed connects into the multiple adsorbent bed group for being connected in series with each other or being connected in parallel with each other by pipeline and valve.
5. high-purity carbon dioxide equipment for purifying according to claim 4, it is characterised in that: the carbon dioxide purification channel
(1) it is equipped with flowmeter.
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| CN201610884061.8A CN106430194B (en) | 2016-10-10 | 2016-10-10 | High-purity carbon dioxide equipment for purifying |
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| CN106430194B true CN106430194B (en) | 2019-06-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520641U (en) * | 2009-09-28 | 2010-07-07 | 苏州市金宏气体有限公司 | High purity carbon dioxide extracting device |
| CN201545703U (en) * | 2009-09-28 | 2010-08-11 | 苏州市金宏气体有限公司 | Device for purifying carbon dioxide in recovered dry ice waste gas |
| CN102538395A (en) * | 2012-03-05 | 2012-07-04 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon dioxide purification technology |
| CN202953825U (en) * | 2012-11-30 | 2013-05-29 | 上海浦江特种气体有限公司 | Electronic grade carbon dioxide purification device |
| CN206172984U (en) * | 2016-10-10 | 2017-05-17 | 浙江海天气体有限公司 | High -purity carbon dioxide purification equipment |
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2016
- 2016-10-10 CN CN201610884061.8A patent/CN106430194B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520641U (en) * | 2009-09-28 | 2010-07-07 | 苏州市金宏气体有限公司 | High purity carbon dioxide extracting device |
| CN201545703U (en) * | 2009-09-28 | 2010-08-11 | 苏州市金宏气体有限公司 | Device for purifying carbon dioxide in recovered dry ice waste gas |
| CN102538395A (en) * | 2012-03-05 | 2012-07-04 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon dioxide purification technology |
| CN202953825U (en) * | 2012-11-30 | 2013-05-29 | 上海浦江特种气体有限公司 | Electronic grade carbon dioxide purification device |
| CN206172984U (en) * | 2016-10-10 | 2017-05-17 | 浙江海天气体有限公司 | High -purity carbon dioxide purification equipment |
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