CN106315583A - Device for efficiently recovering carbon monoxide in acetic acid tail gas - Google Patents
Device for efficiently recovering carbon monoxide in acetic acid tail gas Download PDFInfo
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- CN106315583A CN106315583A CN201611001917.9A CN201611001917A CN106315583A CN 106315583 A CN106315583 A CN 106315583A CN 201611001917 A CN201611001917 A CN 201611001917A CN 106315583 A CN106315583 A CN 106315583A
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- tower
- adsorption tower
- psa
- carbon monoxide
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
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Abstract
The invention belongs to the field of industrial waste gas recovery and utilization, and relates to a device for efficiently recovering carbon monoxide in acetic acid tail gas. The device comprises a methanol separating tower 1, a PSA (pressure swing adsorption) adsorption unit set, a CO gas storage tank 3, a purge gas blowing fan 4 and a vacuum pump 5. The device is characterized in that the methanol separating tower 1, the PSA adsorption unit set and the CO gas storage tank 3 are sequentially connected; the PSA adsorption unit set is externally connected with the purge gas blowing fan 4 and the vacuum pump 5; and the PSA adsorption unit set is composed of a crude extract adsorption tower 2-1, a second-stage adsorption tower 2-2, a third-stage adsorption tower 2-3 and a fine purification tower 2-4 which are sequentially linked. The PSA adsorption unit provided by the invention can realize multi-stage adsorption and stage-by-stage separation and purification of CO, and has the characteristics of simple operation, low energy consumption, investment saving, low operating cost and the like.
Description
Technical field
The invention belongs to industrial waste gas and recycle field, relate to carbon monoxide dress in a kind of high efficiente callback acetate acid tail gas
Put.
Background technology
The fast development of industry makes the consumption of energy resource consumption especially oil, coal and natural gas increase severely, air pollution
The most serious.Owing to carbon monoxide isothermal chamber gas has penetrance highly to the visible ray from solar radiation, and
The long-wave radiation reflecting the earth has the absorbability of height, can strongly absorb the infrared ray in terrestrial surface radiation, namely
" greenhouse effect " often said, the aggravation of this effect result in global warming.The consequence of global warming, can make Global Precipitation
Amount is redistributed, and glacier and frozen soil melt, and sea level rise, has both endangered the balance of natural ecosystems, more threatened the mankind
Provand and living environment.The toxicity of CO is very strong, when sucking the gas containing CO, can cause headache, dizzy, breast
Vexed, even to go into a coma, severe patient is dead.Carbon monoxide is the primary raw material of chemical industry synthesis simultaneously, developing rapidly of modern industry,
Carbon monoxide, the utilization of carbon dioxide are increasingly subject to people's attention, and many countries are all being studied carbon dioxide, an oxidation
Carbon is comprehensively utilized as potential carbon resource.As far back as the 1830's, China begins to use carbon dioxide, carbon monoxide
In anthropogenics, fire extinguishing, refrigeration, metal coating welding, manufacture the aspect such as fizz, sterilizing.Therefore, remove, return
Receive and utilize carbon dioxide and carbon monoxide extremely important.
The separation of carbon monoxide mainly has four classes: the first kind is to use Cosorb method, utilizes complex solution agent selectivity
Absorb carbon monoxide, then obtain carbon monoxide product through adding Thermal desorption, because the part in unstripped gas forms meeting and complexing solvent
Reaction so that it is CO absorbability is declined and even lost efficacy, therefore need strict pretreatment, harmful constituent is removed.Washing rich solution adds
Thermal desorption CO out carries a small amount of toluene vapor and chloride ion, in addition it is also necessary to increase subsequent treatment operation, the investment of this method and fortune
Row expense is the highest and there is problem of environmental pollution；Equations of The Second Kind is to use gaseous jet simulation, utilizes dissolving and the expansion of gas with various
Dissipating speed difference is principle, but carbon monoxide and nitrogen, argon and the dissolving of these several gases of methane and diffusion rate difference are relatively
Little, this method limits the concentration of carbon monoxide；3rd class is to use pressure swing adsorption method (PSA), utilizes the absorption property of adsorbent
Remove the impurity composition in gaseous mixture, relatively have excellent when this method carbonomonoxide concentration in unstripped gas is relatively low or gaseous component is less
Gesture；4th class is separation by deep refrigeration, is also to use more separation method at present, utilizes different material in different pressures, difference
At a temperature of phase change separate, this method treating capacity is big, product makings amount high, and the high same investment of yield is with energy consumption phase the most relatively
High.
Summary of the invention
It is an object of the invention to low for the existing equipment response rate, to construct gas purity loaded down with trivial details, that obtain the most high not
Foot, it is provided that carbon monoxide device in a kind of high efficiente callback acetate acid tail gas.
The solution of the present invention is by being achieved in that:
Carbon monoxide device in a kind of high efficiente callback acetate acid tail gas, this appliance arrangement include eparating methanol tower 1, PSA absorbing unit group,
CO gas tank 3, flushing pneumatic transmission blower fan 4, vacuum pump 5, it is characterised in that eparating methanol tower 1, PSA absorbing unit group, CO gas tank 3
Being sequentially connected with, PSA absorbing unit external flushing pneumatic transmission blower fan 4, vacuum pump 5, described PSA absorbing unit group is by slightly carrying adsorption tower
2-1, two-stage nitration adsorption tower 2-2, three sections of adsorption tower 2-3, fine purifiation tower 2-4 link composition successively.
As the further restriction of the present invention, the described adsorption tower 2-1 that slightly carries bears for carrier with activated alumina for filling
Carry the adsorption tower of sulfurous acid copper adsorbent.
As the further restriction of the present invention, described two-stage nitration adsorption tower 2-2 is carrier loaded for filling with porous resin
The adsorption tower of sulfurous acid copper adsorbent.
As the further restriction of the present invention, three sections of described adsorption tower 2-3 are carrier loaded Asia for filling with activated carbon
The adsorption tower of copper sulfate adsorbent.
As the further restriction of the present invention, described fine purifiation tower 2-4 bears for carrier with HZSM-5 type molecular sieve for filling
Carry the adsorption tower of sulfurous acid copper adsorbent.The preparation method of HZSM-5 type molecular sieve carrier is: by 4mol waterglass and 0.05mol
Sodium metaaluminate be dissolved in the deionized water of 250mol, strong stirring 20min so that it is fully dissolve, add 0.6mol positive fourth
Amine and ethylenediamine (molal quantity 1:1), stir 30min, use sulfuric acid regulation solution pH=11, be subsequently adding the nitre that mass fraction is 2%
Acid lanthanum, adds gained mixed solution baking oven and obtains concentrated gel material at 100 DEG C of evaporation 5h, sealed by concentrated gel material,
Crystallization 10h in 150 DEG C of crystallizing kettles, carries out filtration washing and is dried sample, and 600 DEG C of roasting 6h prepare HZSM-5 type molecular sieve
Carrier.
For making the present invention open fully, in PSA absorbing unit, in each adsorption tower, filling is loaded with the carrier suction of Cu-lyt.
Attached dose uses blood pressure lowering evacuation mode to carry out desorption and regeneration.Each adsorption tower alternately experience four step primary operational processes: pressurising, suction
Attached, CO forward rinses, inversely evacuates.Process condition is: unstripped gas temperature 50～80 DEG C, pressure 0.1～0.15MPa, CO
Recovered under reduced pressure pressure 6～13kPa, the sorption cycle cycle 12～20min, rinse gas ratio (rinse tolerance/material gas quantity) 0.3～
0.7。
Substantive distinguishing features and the marked improvement of the present invention be: device production scale is up to 500Nm3/ h, reclaims the CO obtained
Product purity is more than 99.2%, and the response rate is more than 87%.PSA absorbing unit of the present invention is the highest to the selection absorbability of CO
In in carbon dioxide, and adsorbance is big, and absorption property is stable, can adsorb realize CO step by step isolated and purified more, have operation
Simply, energy consumption is low, reduced investment, the features such as operating cost is low.
Accompanying drawing explanation
Fig. 1. carbon monoxide retracting device structural representation of the present invention.1: eparating methanol tower；2-1: slightly carry adsorption tower；2-2: two
Section adsorption tower；2-3: three sections of adsorption towers；2-4 fine purifiation tower；3:CO gas tank；4: rinse pneumatic transmission blower fan；5: vacuum pump.
Detailed description of the invention
Embodiment 1.
This appliance arrangement includes eparating methanol tower 1, PSA absorbing unit group, CO gas tank 3, rinses pneumatic transmission blower fan 4, vacuum pump
5, eparating methanol tower 1, PSA absorbing unit group, CO gas tank 3 are sequentially connected with, PSA absorbing unit external flushing pneumatic transmission blower fan 4, vacuum
Pump 5, described PSA absorbing unit group is by slightly carrying adsorption tower 2-1, two-stage nitration adsorption tower 2-2, three sections of adsorption tower 2-3, fine purifiation tower 2-4
Link composition successively.Slightly carrying adsorption tower 2-1 is to fill with the adsorption tower that activated alumina is carrier loaded sulfurous acid copper adsorbent,
Two-stage nitration adsorption tower 2-2 is to fill with the adsorption tower that porous resin is carrier loaded sulfurous acid copper adsorbent, and three sections of adsorption tower 2-3 are
Filling with the adsorption tower that activated carbon is carrier loaded sulfurous acid copper adsorbent, fine purifiation tower 2-4 is for filling with HZSM-5 type molecular sieve
Adsorption tower for carrier loaded sulfurous acid copper adsorbent.
Each of the above adsorption tower alternately experience four step primary operational processes: pressurising, absorption, CO forward rinse, inversely evacuate.
Process condition is: unstripped gas temperature 50～80 DEG C, pressure 0.1～0.15MPa, CO recovered under reduced pressure pressure 6～13kPa, inhales
Attached cycle period 12～20min, rinses gas ratio (rinsing tolerance/material gas quantity) 0.3～0.7.
The present embodiment device production scale is up to 500Nm3/ h, reclaiming the CO product purity obtained is more than 99.2%, returns
Yield is more than 87%.
Claims (5)
1. a carbon monoxide device in high efficiente callback acetate acid tail gas, it is single that this appliance arrangement includes that eparating methanol tower (1), PSA adsorb
Tuple, CO gas tank (3), flushing pneumatic transmission blower fan (4), vacuum pump (5), it is characterised in that eparating methanol tower (1), PSA absorbing unit
Group, CO gas tank (3) are sequentially connected with, PSA absorbing unit external flushing pneumatic transmission blower fan (4), vacuum pump (5), described PSA absorption
Unit group is by slightly putting forward adsorption tower (2-1), two-stage nitration adsorption tower (2-2), three sections of adsorption towers (2-3), fine purifiation tower (2-4) link-group successively
Become.
Carbon monoxide device in high efficiente callback acetate acid tail gas the most according to claim 1, it is characterised in that described slightly carries
Adsorption tower (2-1) is to fill the adsorption tower so that activated alumina is carrier loaded sulfurous acid copper adsorbent.
Carbon monoxide device in high efficiente callback acetate acid tail gas the most according to claim 1, it is characterised in that described two-stage nitration
Adsorption tower (2-2) is to fill the adsorption tower so that porous resin is carrier loaded sulfurous acid copper adsorbent.
Carbon monoxide device in high efficiente callback acetate acid tail gas the most according to claim 1, it is characterised in that described three sections
Adsorption tower (2-3) is to fill the adsorption tower so that activated carbon is carrier loaded sulfurous acid copper adsorbent.
Carbon monoxide device in high efficiente callback acetate acid tail gas the most according to claim 1, it is characterised in that described fine purifiation
Tower (2-4) is to fill the adsorption tower so that HZSM-5 type molecular sieve is carrier loaded sulfurous acid copper adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001917.9A CN106315583A (en) | 2016-11-15 | 2016-11-15 | Device for efficiently recovering carbon monoxide in acetic acid tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001917.9A CN106315583A (en) | 2016-11-15 | 2016-11-15 | Device for efficiently recovering carbon monoxide in acetic acid tail gas |
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| Publication Number | Publication Date |
|---|---|
| CN106315583A true CN106315583A (en) | 2017-01-11 |
Family
ID=57816096
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611001917.9A Pending CN106315583A (en) | 2016-11-15 | 2016-11-15 | Device for efficiently recovering carbon monoxide in acetic acid tail gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188176A (en) * | 2017-07-20 | 2017-09-22 | 绿菱电子材料（天津）有限公司 | Carbon monoxide production technology |
| CN118022489A (en) * | 2024-03-29 | 2024-05-14 | 北京众智创新科技开发有限公司 | High-pressure tail gas recycling device and method for acetic acid synthesis process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016149A (en) * | 2005-07-08 | 2007-01-25 | Chiyoda Corp | Method for removing sulfur compound from natural gas |
| CN204429052U (en) * | 2014-12-05 | 2015-07-01 | 成都巨涛油气工程有限公司 | A kind of acetate acid tail gas purifying carbon oxide device |
| CN206308021U (en) * | 2016-11-15 | 2017-07-07 | 广西新天德能源有限公司 | Carbon monoxide device in a kind of high efficiente callback acetate acid tail gas |
-
2016
- 2016-11-15 CN CN201611001917.9A patent/CN106315583A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016149A (en) * | 2005-07-08 | 2007-01-25 | Chiyoda Corp | Method for removing sulfur compound from natural gas |
| CN204429052U (en) * | 2014-12-05 | 2015-07-01 | 成都巨涛油气工程有限公司 | A kind of acetate acid tail gas purifying carbon oxide device |
| CN206308021U (en) * | 2016-11-15 | 2017-07-07 | 广西新天德能源有限公司 | Carbon monoxide device in a kind of high efficiente callback acetate acid tail gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188176A (en) * | 2017-07-20 | 2017-09-22 | 绿菱电子材料（天津）有限公司 | Carbon monoxide production technology |
| CN118022489A (en) * | 2024-03-29 | 2024-05-14 | 北京众智创新科技开发有限公司 | High-pressure tail gas recycling device and method for acetic acid synthesis process |
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