CN107349753A - One kind traps nitric oxide production method using based on 1,3 dimethyl sulfourea eutectic solvents - Google Patents
One kind traps nitric oxide production method using based on 1,3 dimethyl sulfourea eutectic solvents Download PDFInfo
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- CN107349753A CN107349753A CN201710702479.7A CN201710702479A CN107349753A CN 107349753 A CN107349753 A CN 107349753A CN 201710702479 A CN201710702479 A CN 201710702479A CN 107349753 A CN107349753 A CN 107349753A
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- nitric oxide
- dimethyl
- eutectic
- oxide production
- hydrogen bond
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1418—Recovery of products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1412—Controlling the absorption process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
- B01D2252/2056—Sulfur compounds, e.g. Sulfolane, thiols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/50—Combinations of absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
Abstract
The invention provides a kind of utilize and traps nitric oxide production method based on 1,3 dimethyl sulfourea eutectic solvents, and the eutectic mixture formed using 1,3 dimethyl sulfourea and hydrogen bond receptor absorbs nitric oxide.
Description
Technical field
The invention is related to a kind of nitric oxide capture method, is utilized more particularly, to one kind and is based on 1,3- dimethyl disulfides
Urea eutectic solvent traps nitric oxide production method.
Background technology
With the development of science and technology, problem of environmental pollution is also increasingly severe, and wherein atmosphere pollution also directly affects people
Health and living environment stability.Main component of the oxynitrides (NOx) as atmosphere pollution, easily makes
Into the environmental problem such as acid rain and photochemical fog, also assist in form PM2.5 in addition, so as to the health of the mankind and the balance of environment
Generate destruction.The oxynitrides of mankind's discharge largely results from the use to various fossil fuels, and particularly coal exists
Burnt under high temperature, nitric oxide production ratio is up to 90% in caused oxynitrides.Industrially, through the side frequently with denitration
Oxynitrides (NOx) is reduced to nitrogen (N by method2), mainly including selective catalytic reduction (SCR), non-selective catalytic
Reducing process (SNCR), absorption method (LOTO), gas ions activation method (LPC), photocatalytic method etc..It is every kind of although species is various
There is the limitation of itself in method, such as SCR, SNCR requirement technology height, temperature is high, and cost is high, and equipment is strict, during catalyst is easy
Poison；LOTO operating costs are high and LPC denitration efficiencies are low etc..In summary, traditional method of denitration can not meet industry and
The demand of environmental development, energy-efficient inexpensive oxynitrides capture method is environmental development trend and demand.
Some scholars are directed to, using ionic liquid trapping nitric oxide, having benefited from its unique advantage, such as low steam
Pressure, high heat endurance and flame resistance, it might even be possible to change anion and cation to realize the functionalization of ionic liquid.Wang Cong
It is quick that a kind of basic functionalized ionic liquid has been synthesized in 2016 for nitric oxide production absorption (CN 201611031893.1).
But functionalized ion liquid is complicated by preparation process, the limitation of cost high condition is prepared.
In recent years, a kind of new ionic liquid analog was called eutectic solvent, caused the interest of numerous scholars.It is low
Congruent melting solvent refers to hydrogen bond receptor (such as quaternary ammonium salt) and hydrogen-bond donor (such as acid amides, carboxylic acid and polynary by certain stoichiometric proportion
The compounds such as alcohol) two components that combine or three component eutectic mixtures, its freezing point be substantially less than the pure thing of each component
The fusing point of matter.Reported first in 2003 by Abbott et al..The physicochemical properties and ionic liquid of eutectic solvent are very
It is similar, therefore also it is classified as a kind of novel ion liquid or ionic liquid analog by someone.Eutectic solvent has synthesis letter
Single, cost is low, pollutes the characteristics of low.Eutectic solvent is applied to gas trapping (such as CO by existing largely report at present2, SO2,
H2S in).But existing eutectic solvent absorbs nitric oxide production method, uptake is small, it is difficult to is applied in actual production.
Therefore, synthesis is preferably based on 1,3- dimethyl sulfourea eutectic solvents using assimilation effect, uses it to absorb nitric oxide.
The content of the invention
In view of this, the invention is directed to a kind of using based on 1,3- dimethyl sulfoureas eutectic solvent trapping one
The method of nitrogen oxide is high with overcome the deficiencies in the prior art, good absorbing effect, absorption efficiency.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
One kind traps nitric oxide production method using based on 1,3- dimethyl sulfoureas eutectic solvent, it is characterised in that：Profit
The eutectic mixture formed with 1,3- dimethyl sulfoureas and hydrogen bond receptor absorbs nitric oxide.
Further, described hydrogen bond receptor is tetrabutylphosphonium chloride, tetrabutyl phosphonium bromide phosphine, tetrabutylammonium chloride, four fourths
One kind in base ammonium bromide, 1- butyl -3- methylimidazolium chlorides, 1- butyl -3- methy limidazoliums.
Further, the mol ratio of 1,3- dimethyl sulfoureas and hydrogen bond receptor is more than 1 in the eutectic mixture:1.
Further, nitric oxide absorption pressure is 0.1MPa,.
Further, it is 30~70 DEG C to absorb temperature.
Further, soak time is 0.5~10h.
Further, in addition to absorb after desorption, desorption temperature is between 60~80 DEG C, desorption time 0.5
~2h
Relative to prior art, the invention has the advantage that：Compared with tradition traps nitric oxide production method, this
Invention utilizes the characteristic that 1,3- dimethyl sulfoureas easily protonate in 1,3- dimethyl sulfourea eutectic solvents, anti-with nitric oxide
- NONO should be generated；In addition, the effect that different hydrogen bond receptors and 1,3- dimethyl sulfourea combine generation hydrogen bond is strong and weak different, it is right
Different in its protonation, particularly tetrabutylphosphonium chloride makes the protonation journey of 1,3- dimethyl sulfoureas in eutectic solvent
Degree maximizes, and so as to drastically increase nitric oxide production absorption efficiency, reaches as high as every mole of eutectic solvent trapping 4.3 and rubs
That nitric oxide.
Embodiment
In addition to being defined, technical term used has and the invention one of ordinary skill in the art in following examples
The identical meanings being commonly understood by.Test reagent used, is routine biochemistry reagent unless otherwise specified in following examples；
The experimental method, it is conventional method unless otherwise specified.
The invention is described in detail with reference to embodiment.
Embodiment 1
In the absorber that an internal diameter is Φ 10mm, eutectic solvent 1,3- dimethyl sulfoureas/tetrabutylphosphonium chloride are added
(3:1, mol ratio) 1g, normal pressing operation is kept, controls and absorbs temperature for 30 DEG C, the absorption equilibrium time is 8h, weighs and shows this
Nitric oxide production absorptive capacity is 4.3 moles/mole eutectic solvents in eutectic solvent.
Embodiment 2-8
Similar to embodiment 1, it is 0.1MPa to control nitric oxide gas pressure, absorbs 30 DEG C of temperature, and it is molten to change eutectic
The species and mol ratio of agent, the result such as following table (table 1) that nitric oxide absorbs：
Table 1
Comparative example 1-4
Comparative example 1-4 and the acceptance condition of embodiment 1 are essentially identical, and difference is, have selected different hydrogen bonds to supply
Body.Different hydrogen bond donors are for the Contrast on effect that nitric oxide absorbs referring to table 2
The influence that the different hydrogen bond donor of table 2 traps to nitric oxide
In table 2, comparative example 1-4 has selected the caprolactam of routine, thiocarbamide, urea, imidazoles as hydrogen bond donor respectively, with
1,3- dimethyl sulfoureas of the present invention are relative, and nitric oxide uptake substantially reduces in comparative example, and the application's is low common
Molten solvent is approximately 5-15 times of conventional eutectic solvent for nitric oxide uptake.
Comparative example 5-8
Comparative example 5-8 is the comparative example of embodiment 1, and comparative example 5-8 and the acceptance condition of embodiment 1 are essentially identical, different
Part is hydrogen bond receptor difference, and different hydrogen bond receptors are for the Contrast on effect that nitric oxide absorbs referring to table 3
The influence that the different hydrogen bond receptor of table 3 traps to nitric oxide
In table 3, comparative example 5-8 has selected the Choline Chloride of routine, 1- butyl -3- methylimidazole trifluoromethanesulfonic acids respectively
Salt, zinc bromide, zinc chloride are as hydrogen bond donor, in a comparative example oxidation relative with tetrabutylphosphonium chloride of the present invention
Nitrogen absorbing amount substantially reduces, and the eutectic solvent of the application is approximately the 2-4 of conventional eutectic solvent for nitric oxide uptake
Times.
Embodiment 9-16
Similar to embodiment 1, using 1,3- dimethyl sulfoureas/tetrabutylphosphonium chloride (3:1, mol ratio) it is absorbent, inhale
Nitric oxide is received, changes the condition such as temperature and soak time of absorption, absorbs result such as table 4.
The influence that the different acceptance condition of table 4 absorbs to nitric oxide
Embodiment 17-20
In the absorber that an internal diameter is Φ 10mm, addition has absorbed nitric oxide production eutectic solvent 1,3- dimethyl disulfides
Urea/tetrabutylphosphonium chloride (3:1, mol ratio) 1g, it is subsequently placed in the vacuum drying chamber that pressure is 0.01MPa, control desorption temperature
Spend for 80 DEG C, it is 1h to control desorption time, and the nitric oxide amount for showing to be remained in the eutectic solvent of weighing is 1.3mol/mol
DES。
Influence of the different condition of table 5 to nitric oxide desorption
The preferred embodiment of the invention is the foregoing is only, is not intended to limit the invention creation, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc., the invention should be included in
Protection domain within.
Claims (7)
1. one kind traps nitric oxide production method using based on 1,3- dimethyl sulfoureas eutectic solvent, it is characterised in that：Utilize
The eutectic mixture of 1,3- dimethyl sulfoureas and hydrogen bond receptor composition absorbs nitric oxide.
2. according to the method for claim 1, it is characterised in that：Described hydrogen bond receptor is tetrabutylphosphonium chloride, the tetrabutyl
Bromide phosphine, tetrabutylammonium chloride, TBAB, 1- butyl -3- methylimidazolium chlorides, 1- butyl -3- methy limidazoliums
In one kind.
3. according to the method for claim 1, it is characterised in that：1,3- dimethyl sulfoureas and hydrogen in the eutectic mixture
The mol ratio of key acceptor is more than 1:1.
4. according to the method for claim 1, it is characterised in that：Nitric oxide absorption pressure is 0.1MPa,.
5. the method described in claim 1, it is characterised in that：Temperature is absorbed for 30 at~70 DEG C.
6. the method described in claim 1, it is characterised in that：Soak time is 0.5~10h.
7. the method described in claim 1, it is characterised in that：Also include the desorption after absorbing, desorption temperature is 60~80
Between DEG C, desorption time is 0.5~2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710702479.7A CN107349753A (en) | 2017-08-16 | 2017-08-16 | One kind traps nitric oxide production method using based on 1,3 dimethyl sulfourea eutectic solvents |
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| CN201710702479.7A CN107349753A (en) | 2017-08-16 | 2017-08-16 | One kind traps nitric oxide production method using based on 1,3 dimethyl sulfourea eutectic solvents |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310917A (en) * | 2018-03-08 | 2018-07-24 | 天津大学 | It is a kind of to trap nitric oxide production method using eutectic solvent |
| CN108452640A (en) * | 2018-04-10 | 2018-08-28 | 南昌大学 | A kind of ternary eutectic solvent |
| CN108893137A (en) * | 2018-07-18 | 2018-11-27 | 华东理工大学 | A kind of water base eutectic solvent and preparation method thereof and a kind of oil product extraction desulphurization method |
| CN109701361A (en) * | 2019-01-28 | 2019-05-03 | 辽宁科技大学 | For absorbing SO2And NO2Polyalcohol-choline eutectic solvent and preparation method |
| CN113975940A (en) * | 2021-09-30 | 2022-01-28 | 浙江工业大学 | Composite absorbent combining bifunctional ionic liquid and inorganic alkali liquor and application thereof |
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| US3754074A (en) * | 1967-11-20 | 1973-08-21 | North American Rockwell | Removal of nitrogen oxides and other impurities from gaseous mixtures |
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| CN104762100A (en) * | 2015-03-30 | 2015-07-08 | 浙江大学 | Method for removing nitrogen-containing compounds in oil products by virtue of eutectic solvent extraction |
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| CN106823744A (en) * | 2017-02-20 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of preparation method of high selectivity desulphurization system and its desulfurizing agent |
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| WO2015175314A1 (en) * | 2014-05-12 | 2015-11-19 | North Carolina State University | Activated metal low temperature reaction processes and products |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310917A (en) * | 2018-03-08 | 2018-07-24 | 天津大学 | It is a kind of to trap nitric oxide production method using eutectic solvent |
| CN108452640A (en) * | 2018-04-10 | 2018-08-28 | 南昌大学 | A kind of ternary eutectic solvent |
| CN108893137A (en) * | 2018-07-18 | 2018-11-27 | 华东理工大学 | A kind of water base eutectic solvent and preparation method thereof and a kind of oil product extraction desulphurization method |
| CN108893137B (en) * | 2018-07-18 | 2020-10-30 | 华东理工大学 | Water-based eutectic solvent, preparation method thereof and oil product extraction desulfurization method |
| CN109701361A (en) * | 2019-01-28 | 2019-05-03 | 辽宁科技大学 | For absorbing SO2And NO2Polyalcohol-choline eutectic solvent and preparation method |
| CN113975940A (en) * | 2021-09-30 | 2022-01-28 | 浙江工业大学 | Composite absorbent combining bifunctional ionic liquid and inorganic alkali liquor and application thereof |
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