CN102335589A - Adsorbent and preparation method and use thereof - Google Patents
Adsorbent and preparation method and use thereof Download PDFInfo
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- CN102335589A CN102335589A CN2011102751726A CN201110275172A CN102335589A CN 102335589 A CN102335589 A CN 102335589A CN 2011102751726 A CN2011102751726 A CN 2011102751726A CN 201110275172 A CN201110275172 A CN 201110275172A CN 102335589 A CN102335589 A CN 102335589A
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 79
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 78
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 17
- 239000002808 molecular sieve Substances 0.000 claims abstract description 13
- 238000005342 ion exchange Methods 0.000 claims abstract description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 8
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012013 faujasite Substances 0.000 claims abstract description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 3
- 239000001103 potassium chloride Substances 0.000 claims abstract description 3
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 3
- 239000010457 zeolite Substances 0.000 claims abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 19
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 8
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 2
- 229910001626 barium chloride Inorganic materials 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 238000000967 suction filtration Methods 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000005261 decarburization Methods 0.000 description 14
- 238000006477 desulfuration reaction Methods 0.000 description 14
- 238000001035 drying Methods 0.000 description 13
- 230000023556 desulfurization Effects 0.000 description 11
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 10
- 238000000746 purification Methods 0.000 description 9
- 206010013786 Dry skin Diseases 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000010792 warming Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The invention discloses an adsorbent capable of simultaneously adsorbing and removing SO2, NOx and CO2 from coal-fired flue gas, and a preparation method and use thereof. In the preparation of the adsorbent, faujasite (X type and Y type), LTA (lipoteichoicacid) type zeolite, mordenite or a ZSM-5 (zeolite molecular sieve) molecular sieve is used as an adsorption carrier, and the carrier is put in solutions, such as a lithium chloride solution, a potassium chloride solution and the like for ion exchange; then, the carrier is cleaned and dried; and finally, the carrier is put in a muffle furnace for roasting so as to prepare the required adsorbent. In the use of the adsorbent, the adsorbent is applied to removing the SO2, the NOx and the CO2 from the coal-fired flue gas so as to reach the aim of purifying the flue gas. With the adoption of the adsorbent disclosed by the invention, the simultaneous removal of a plurality of pollutants from flue gases is realized, the adsorption efficiency is high, and the operation is simple; and the preparation method of the adsorbent is mature and stable, convenient and simple, and easy to realize.
Description
Technical field
The present invention relates to a kind of adsorbent, particularly a kind of adsorbent that removes sulfur dioxide in the coal-fired flue-gas, nitrogen oxide and carbon dioxide simultaneously, and its production and use, belong to adsorption technology and be applied to atmosphere pollution purification techniques field.
Technical background
By SO
2And nitrogen oxide (NO
X) acid rain and the CO that wait acid-causing substance to cause
2The greenhouse effects that isothermal chamber gas causes are global atmosphere environmental problems of common concern in the world.70% CO2 emission in the air, 90% sulfur dioxide (SO2) emissions and 67% discharged nitrous oxides come from the use of fossil fuel.In view of China is the main one-time-consumption energy with coal, the key of control coal-fired flue-gas discharging becoming protection atmospheric environment.
Remove the one-component SO in the coal-fired flue-gas respectively through absorption method
2, NO
xAnd CO
2Method report is all arranged; But the less and poor stability of the material that adsorbs sulfur dioxide separately; Utilizing absorption method to remove nitrogen oxide does not have systematic research basically, and the capture of carbon dioxide is the focus of current research, but the stable type of expansion adsorbance and adsorbent to appoint be the difficult point of studying.The present invention considers many shortcomings such as complex process, cost height, the floor space of multiple pollutant in the multistep purified treatment flue gas is big; Intend the above-mentioned three kinds of components in the adsorbing and removing flue gas of a kind of adsorbent while of development and use; Satisfy the gas cleaning requirement to reach; Simplify treatment process, realize a plurality of purposes such as twice laid.
Itself makes of absorption method and removes the just few of sulfur dioxide, nitrogen oxide, especially nitrogen oxide, and the expansion of the sorbing material adsorption capacity of specialize carbon dioxide also is a difficult point.
Summary of the invention
The present invention has overcome the deficiency of prior art, and SO in a kind of while adsorbing and removing coal-fired flue-gas is provided
2, NO
xAnd CO
2Adsorbent, realize a kind of adsorbent purpose of adsorption cleaning flue gas altogether simultaneously.
It is 50～150 ℃ flue gas that this adsorbent is mainly used in temperature, and normal pressure is the SO in the adsorption and enrichment flue gas simultaneously
2, NO
xAnd CO
2Three kinds of components.
Another purpose of the present invention is to provide an adsorbent preparation method, specifically carries out as follows:
(1) select for use in the molded molecular sieve of faujasite (X, Y type), LTA type zeolite, modenite or ZSM-5 (silica alumina ratio 25～100) a kind of as carrier;
(2) compound concentration is lithium chloride, potassium chloride, calcium chloride, barium chloride, manganese nitrate, nickel nitrate, copper nitrate, cobalt nitrate, ferric nitrate or the liquor argenti nitratis ophthalmicus of 0.1～1mol/L, and is subsequent use;
(3) be under 20～100 ℃ in temperature, choose a kind of absorption carrier and add in the solution of preparing in a kind of (2) step that stir and carry out ion-exchange, wherein solid-to-liquid ratio is 1:10～100, ion-exchange time is 2～24 hours;
(4), clean the back carrier and put into 90～110 ℃ of baking ovens dry 1～2 day with the carrier of deionized water after cleaning ion-exchange repeatedly under the vacuum funnel suction filtration;
(5) dried carrier is put into Muffle furnace temperature programming to 400 at room temperature～700 ℃; Heating rate is 1 ℃/min; Under maximum temperature, keep 2～24h, whole roasting process atmosphere is nitrogen protection, and flow is 100～600mL/min; Last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
Another purpose of the present invention is adsorbent is used for removing coal-fired flue-gas sulfur dioxide, nitrogen oxide and carbon dioxide, specifically carries out as follows:
Process object of the present invention is a coal-fired flue-gas, SO in the flue gas
2Concentration is 1000～3000ppm, NO
xConcentration is 500～1500ppm, CO
2Concentration is 7%～15%, O
2Concentration is about 5%, and the NO volume ratio is more than 90% in the nitrogen oxide.
(1) will contain SO
2, NO
xAnd CO
2Coal-fired flue-gas, adopt the triumphant grace of Britain (Kane KM1096) flue gas analyzer to measure gas componant and concentration;
(2) adsorbent for preparing is placed fixed bed reactors; The fixed bed reaction actuator temperature is controlled at 50～150 ℃; The coal-fired flue-gas of known each constituent concentration is fed in the reactor; Mixed gas flow is 100～500mL/min, and the flue gas concentration behind the reactor tail end adsorption cleaning is by the flue gas analyzer on-line monitoring, and SO in the flue gas of record absorption back
2, NO
xAnd CO
2Concentration;
(3) according to flue gas concentration situation of change before and after the absorption, calculate SO in the adsorption cleaning flue gas
2, NO
xAnd CO
2Adsorption cleaning efficient, and estimate the adsorption effect of adsorbent, the adsorption efficiency computing formula is: (gas approach concentration-exhanst gas outlet concentration)/gas approach concentration.
This method is on the basis of the single adsorption cleaning coal-fired flue-gas of tradition pollutant sulfur dioxide, nitrogen oxide and carbon dioxide method; Be reduced in the step through the exploitation of the novel sorbents absorbing process that multistep is rapid and realize; Taken into account the treatment technology requirement of a large amount of relatively pollutants (like carbon dioxide) in the trace contaminant (like sulfur dioxide, nitrogen oxide) and flue gas in the smoke treatment simultaneously, system development the preparation technology and the coal-fired flue-gas purification applications of ion exchange absorbent, realization removes the multiple pollutant in the flue gas simultaneously; Adsorption efficiency is high; Operation is succinct, and the adsorbent preparation method is mature and stable, convenient and simple, be easy to realize, can realize the desulphurization denitration decarburization under the absorption situation of change fast; Efficient reaches 80%, 20% and 50% respectively.
Description of drawings
Fig. 1 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 2 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 3 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 4 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 5 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 6 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
Fig. 7 is SO in the coal-fired flue-gas
2, NO
xAnd CO
2Remove efficiency curve diagram.
The specific embodiment
Instance 1
With deionized water the 13X molecular sieve is cleaned three times, be put in 110 ℃ of baking oven inner dryings after 1 day, placing in the Muffle furnace under room temperature by heating rate is that 1 ℃/min is warming up to 400 ℃, at 400 ℃ of following roasting 8h, reduces to room temperature then, promptly gets adsorbent.
4g activation 13X molecular sieve is placed 70 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 300mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2300ppm, 1100ppm and 11%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 1.Desulfuration efficiency is greater than 96%, and denitration efficiency is greater than 12%, and the decarburization decrease in efficiency is rapid.In preceding 3 minutes, keep desulfurization, denitration and decarburization efficient to be respectively: 98%, 25% and 62%.
With deionized water the 5A molecular sieve is cleaned three times, be put in 110 ℃ of baking oven inner dryings after 1 day, placing in the Muffle furnace under room temperature by heating rate is that 1 ℃/min is warming up to 400 ℃, and roasting 8h under maximum temperature reduces to room temperature then, promptly gets adsorbent.
5g activation 5A molecular sieve is placed 50 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 500mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2200ppm, 958ppm and 7.7%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, be purified efficient, as shown in Figure 2, desulfurization, denitration and decarburization decrease in efficiency are very fast, desulfurization in preceding 3 minutes, denitration and decarburization efficient are respectively: 67%, 25% and 3.8%.
Instance 3
The 20g13X molecular sieve is added among the 1mol/L Klorvess Liquid 200ml, and solid-to-liquid ratio is 1:10, stirs for 60 ℃ in bath temperature and carries out ion-exchange in 24 hours, after cleaning repeatedly with deionized water, is put in 110 ℃ of baking oven inner dryings 1 day; It is that 1 ℃/min is warming up to 400 ℃ that sample after the drying is placed in the Muffle furnace under room temperature by heating rate; At 400 ℃ of following roasting 24h, whole roasting process atmosphere is nitrogen protection, and nitrogen flow is 100mL/min; Last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
The modified molecular screen that 10g is prepared places 90 ℃ of reactors, feeds coal-fired flue-gas, and flue gas flow is 300mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2800ppm, 980ppm and 9.2%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 3ly, it is 100% that desulfuration efficiency is close to, denitration efficiency is 50%, the decarburization decrease in efficiency is very fast, desulfurization in preceding 3 minutes, denitration and decarburization efficient are: 98%, 32% and 72%.
Instance 4
20g 13X molecular sieve is added among the 0.5mol/L cobalt nitrate solution 400ml, and solid-to-liquid ratio is 1:20, stirs down for 80 ℃ in bath temperature and carries out ion-exchange in 24 hours; Clean repeatedly with deionized water; Be put in 110 ℃ of baking oven inner dryings 1 day, it is that 1 ℃/min is warming up to 500 ℃ that sample after the drying is placed in the Muffle furnace under room temperature by heating rate, roasting 24h under maximum temperature; Whole roasting process atmosphere is nitrogen protection; Nitrogen flow is 200mL/min, and last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
The 10g activated molecular sieve is placed 100 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 200mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2700ppm, 980ppm and 9.1%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 4ly, desulfurization, denitration efficiency are almost 100%, the decarburization decrease in efficiency is very fast.Desulfurization in preceding 3 minutes, denitration and decarburization efficient are: 99%, 99% and 47%.
10g LTA type molecular sieve is added among the 0.5mol/L cobalt nitrate solution 500ml, and solid-to-liquid ratio is 1:50, stirs down for 20 ℃ in room temperature and carries out ion-exchange in 20 hours; Clean repeatedly with deionized water; Be put in 100 ℃ of baking oven inner dryings 1 day, it is that 1 ℃/min is warming up to 600 ℃ that sample after the drying is placed in the Muffle furnace under room temperature by heating rate, roasting 20h under maximum temperature; Whole roasting process atmosphere is nitrogen protection; Nitrogen flow is 300mL/min, and last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
The 10g activated molecular sieve is placed 150 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 400mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2700ppm, 960ppm and 9%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 5ly, desulfurization, denitration efficiency maintain about 99% and 25%, the decarburization decrease in efficiency is very fast, desulfurization in preceding 3 minutes, denitration and decarburization efficient are respectively: 99%, 26% and 46%.
Instance 6
10g LTA type molecular sieve is added among the 0.1mol/L manganese nitrate solution 1000ml, and solid-to-liquid ratio is 1:100, stirs 15 hours for 60 ℃ in bath temperature; Clean repeatedly with deionized water, be put in 90 ℃ of baking oven inner dryings 2 days, it is that 1 ℃/min is warming up to 700 ℃ that drying sample is placed in the Muffle furnace under room temperature by heating rate; At 700 ℃ of following roasting 12h, whole roasting process atmosphere is nitrogen protection, and nitrogen flow is 500mL/min; Last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
The 10g activated molecular sieve is placed 150 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 100mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2600ppm, 950ppm and 8.8%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 6ly, desulfurization, denitration efficiency maintain more than 99%.Decarburization efficient reduction of speed is very fast.Desulfurization in preceding 3 minutes, denitration and decarburization efficient are respectively: 100%, 99% and 32%.
Instance 7
20g 5A molecular sieve is added among the 0.8mol/L Klorvess Liquid 800ml, and solid-to-liquid ratio is 1:40, stirs 2 hours down in 60 ℃ of water-baths, cleans repeatedly with deionized water, is put in 110 ℃ of baking oven inner dryings 2 hours, and carrier after the drying is repeated twice of aforesaid operations again; It is that 1 ℃/min is warming up to 700 ℃ that carrier after the drying is placed in the Muffle furnace under room temperature by heating rate; At 700 ℃ of following roasting 5h, roasting process atmosphere is nitrogen protection, and nitrogen flow is 600mL/min; Last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
The 10g activated molecular sieve is placed 120 ℃ of reactors, feed coal-fired flue-gas, flue gas flow is 500mL/min, SO in the flue gas
2, NO
XAnd CO
2Concentration be respectively 2800ppm, 1150ppm and 8.2%.
Monitoring in real time purifies the back flue gas concentration, and calculates SO in the flue gas
2, NO
XAnd CO
2Purification efficiency, see shown in Figure 7ly, desulfuration efficiency is: 99%, denitration efficiency is: 63%, desulfurization in preceding 3 minutes, denitration and decarburization efficient are respectively: 99%, 73% and 29%.
Claims (5)
1. adsorbent preparation method is characterized in that carrying out as follows:
(1) select for use a kind of in the molded molecular sieve of faujasite, LTA type zeolite, modenite, ZSM-5 to be carrier; Compound concentration is lithium chloride, potassium chloride, calcium chloride, barium chloride, manganese nitrate, nickel nitrate, copper nitrate, cobalt nitrate, ferric nitrate or the liquor argenti nitratis ophthalmicus of 0.1～1mol/L, and is subsequent use;
(2) be under 20～100 ℃ in temperature, choose a kind of absorption carrier and add in the solution of preparing in a kind of (1) step that stir and carry out ion-exchange, wherein solid-to-liquid ratio is 1:10～100, ion-exchange time is 2～24 hours;
(3), clean the back carrier and put into 90～110 ℃ of baking ovens dry 1～2 day with the carrier of deionized water after cleaning ion-exchange repeatedly under the vacuum funnel suction filtration;
(4) dried carrier is put into Muffle furnace temperature programming to 400 at room temperature～700 ℃; Heating rate is 1 ℃/min; Under maximum temperature, keep 2～24h, whole roasting process atmosphere is nitrogen protection, and nitrogen flow is 100～600mL/min; Last carrier is cooled to room temperature naturally, promptly gets required adsorbent.
2. method according to claim 1 is characterized in that faujasite is X or Y type.
3. the adsorbent for preparing of the said method of claim 1.
4. the adsorbent described in the right 3 removes the application in sulfur dioxide in the coal-fired flue-gas, nitrogen oxide and the carbon dioxide at the same time.
5. application according to claim 4 is characterized in that carrying out as follows:
(1) adopts the triumphant grace flue gas analyzer of Britain to measure and contain SO
2, NO
xAnd CO
2Coal-fired flue-gas in gas componant and concentration;
(2) adsorbent for preparing is placed fixed bed reactors; The fixed bed reaction actuator temperature is controlled at 50～150 ℃; To mix coal-fired flue-gas feeds in the reactor; Mixed gas flow is 100～500mL/min, behind the adsorption cleaning flue gas concentration by the flue gas analyzer on-line monitoring, and SO in the flue gas of record absorption back
2, NO
xAnd CO
2Concentration;
(3) according to flue gas concentration situation of change before and after the absorption, calculate SO in the adsorption cleaning flue gas
2, NO
xAnd CO
2Adsorption efficiency, and estimate the adsorption effect of adsorbent.
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|---|---|---|---|
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|---|---|
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ID=45511682
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716642A (en) * | 2012-06-29 | 2012-10-10 | 苏州嘉言能源设备有限公司 | Desulfurization method by using molecular sieve |
| CN103301805A (en) * | 2012-03-07 | 2013-09-18 | 苏州绿奇创环保科技有限公司 | Carbon dioxide adsorbent and preparation method thereof |
| CN103894147A (en) * | 2012-12-25 | 2014-07-02 | 北京三聚环保新材料股份有限公司 | Molecular sieve desulfurizer containing copper ion and potassium ion and preparation method thereof |
| CN103894146A (en) * | 2012-12-25 | 2014-07-02 | 北京三聚环保新材料股份有限公司 | Potassium ion-containing molecular sieve desulfurizing agent, and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
| CN1917952A (en) * | 2003-12-22 | 2007-02-21 | 策卡有限公司 | Method of purifying a gas stream contaminated by carbon dioxide and one or more hydrocarbons and/or nitrogen oxides by adsorption on an aggregated zeolitic adsorbent |
| CN101367033A (en) * | 2007-08-15 | 2009-02-18 | 中国石油化工股份有限公司 | Preparation method for Cu(I)-Y molecular sieve adsorption desulphurizing agent |
| CN101380564A (en) * | 2008-09-08 | 2009-03-11 | 大连理工大学 | Adsorption agent for removing aldehydes gas in carbon dioxide and preparation method thereof |
| CN102049239A (en) * | 2010-12-07 | 2011-05-11 | 浙江大学 | Nitrogen oxide adsorbent prepared through ion exchange modification of natural zeolite |
-
2011
- 2011-09-16 CN CN2011102751726A patent/CN102335589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
| CN1917952A (en) * | 2003-12-22 | 2007-02-21 | 策卡有限公司 | Method of purifying a gas stream contaminated by carbon dioxide and one or more hydrocarbons and/or nitrogen oxides by adsorption on an aggregated zeolitic adsorbent |
| CN101367033A (en) * | 2007-08-15 | 2009-02-18 | 中国石油化工股份有限公司 | Preparation method for Cu(I)-Y molecular sieve adsorption desulphurizing agent |
| CN101380564A (en) * | 2008-09-08 | 2009-03-11 | 大连理工大学 | Adsorption agent for removing aldehydes gas in carbon dioxide and preparation method thereof |
| CN102049239A (en) * | 2010-12-07 | 2011-05-11 | 浙江大学 | Nitrogen oxide adsorbent prepared through ion exchange modification of natural zeolite |
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| CN103894147A (en) * | 2012-12-25 | 2014-07-02 | 北京三聚环保新材料股份有限公司 | Molecular sieve desulfurizer containing copper ion and potassium ion and preparation method thereof |
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| CN105124809A (en) * | 2015-10-22 | 2015-12-09 | 浙江海洋学院 | Protective gloves for paraxylene |
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| CN107261829A (en) * | 2017-08-01 | 2017-10-20 | 北京京诚科林环保科技有限公司 | Low-temperature plasma flue gas denitration method and device for gas-fired boiler |
| CN108187628A (en) * | 2018-03-23 | 2018-06-22 | 陈红梅 | A kind of activating coal gangue prepares CO2The method of sorbing material |
| CN109513421B (en) * | 2018-10-24 | 2021-08-17 | 浙江省化工研究院有限公司 | CO in gas2Adsorption method of (2) |
| CN109513421A (en) * | 2018-10-24 | 2019-03-26 | 浙江省化工研究院有限公司 | CO in a kind of gas2Adsorption method |
| CN109453649A (en) * | 2018-12-07 | 2019-03-12 | 铜陵泰富特种材料有限公司 | Boiler smoke low-temp desulfurization method of denitration |
| CN109576029A (en) * | 2018-12-21 | 2019-04-05 | 大连海鑫化工有限公司 | A kind of desulfurizing dessicant and preparation method thereof |
| CN111266083A (en) * | 2020-02-18 | 2020-06-12 | 吉林大学 | Manganese-based molecular sieve deoxidizer and preparation method and application thereof |
| CN116135300A (en) * | 2021-11-16 | 2023-05-19 | 香港城市大学深圳研究院 | Selective CO capture 2 Adsorbent of (2) and preparation and application thereof |
| CN115715971A (en) * | 2022-11-26 | 2023-02-28 | 太原理工大学 | Blast furnace gas desulfurization adsorbent and preparation method thereof |
| CN115715971B (en) * | 2022-11-26 | 2024-07-23 | 太原理工大学 | Blast furnace gas desulfurization adsorbent and preparation method thereof |
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