CN104474847A - Mixture for flue gas desulphurization and use thereof - Google Patents
Mixture for flue gas desulphurization and use thereof Download PDFInfo
- Publication number
- CN104474847A CN104474847A CN201410572474.3A CN201410572474A CN104474847A CN 104474847 A CN104474847 A CN 104474847A CN 201410572474 A CN201410572474 A CN 201410572474A CN 104474847 A CN104474847 A CN 104474847A
- Authority
- CN
- China
- Prior art keywords
- mixture
- sulfur dioxide
- flue gas
- gas desulfurization
- base oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a mixture for flue gas desulphurization and a use thereof. Chlorinated paraffin and base oil are mixed according to a certain ratio to form a mixture, the mixture has good sulfur dioxide absorption effects, the absorbed sulfur dioxide is removed very easily, and the mixture without sulfur dioxide can be recycled to adsorb sulfur dioxide. Compared the traditional wet, dry and semi-dry flue gas desulphurization methods, the method utilizing the mixture realizes recycle of a desulfurizer, recovery of sulfur dioxide and no secondary pollution on the environment. The mixture is prepared from easily available raw materials and has a low cost. The mixture can provide solution thinking for a large global problem of flue gas desulphurization.
Description
Technical field
The invention belongs to environmental protection and energy field, relate to a kind of novel mixture for flue gas desulfurization and application thereof.
Background technology
In recent years, the sulfur dioxide pollution of China is quite serious, and flue gas desulfurization (FGD) is at present the generally acknowledged approach the most effectively controlling sulfur dioxide (SO2) emissions.People are both economical in research, and control again the method for sulfur dioxide (SO2) emissions efficiently, successively develop: with gypsum for this reason, dilute sulfuric acid process is the Wet Flue Gas Desulfurization Technology of representative; Be the dry flue gas desulphurization technology of representative with flue gas reflux circulating fluidized bed (RCFB) flue gas desulfurization and take spray drying process as the Summary of Semi-dry Flue Gas Desulfurization of representative.But be wet method or dry method or semidry method all faces accessory substance difficult treatment, the problems such as secondary pollution is serious, seriously limit the development of these methods.With the physicochemical properties of its uniqueness and distinctive function, (steam forces down ionic liquid in recent years, nonflammable, the solubility of sulfur dioxide is good etc.) attention of people is caused in flue gas desulfurization field, its result shows that ionic liquid has good latency development prospect in flue gas desulfurization field.But the viscosity intrinsic due to ionic liquid is large, and price is higher, synthesizes difficulty in a large number, and desulfurized effect, on the impact of the factors such as influence of temperature change is larger, constrains it to a certain extent in this field extensive use.The present invention with chlorinated paraffin wax and base oil for raw material, with the mixture produced after special ratios mixing, there is lower viscosity, the effect of sulfur dioxide absorption can be had, there is again cost low, raw material are cheap, can reuse, uptake changes the characteristics such as slow along with temperature raises, and the sulfur dioxide recoverable absorbed.There is not yet the report similar to the present invention in the literature, the present invention has potential development prospect in this international difficult problem of flue gas desulfurization.
Summary of the invention
The technical problem solved: find effectively a kind of, economic mixture, have the character of absorption sulfur dioxide in one widely temperature range, this mixture can be reused, and can not cause the secondary pollution to environment.
This mixture of the present invention mixes in certain proportion with base oil and chlorinated paraffin wax, maintained the 2-4% of mixture weight used by the amount of sulfur dioxide absorption in wider temperature range, along with the rising of temperature after this mixture sulfur dioxide absorption reaches capacity, in material, sulfur dioxide gas effusion slowly, has in the ability compared with sulfur dioxide absorption in large-temperature range.If this mixture to be used for the desulfurization of industrial smoke, the flue gas desulfurization under different temperatures can be met.In recent years, ionic liquid shows excellent characteristic as a kind of new compound in flue gas desulfurization, and ionic liquid itself not only has higher heat endurance, and has good absorbability to sulfur dioxide.For this reason, we compare in the ability of sulfur dioxide absorption mixture of the present invention and ionic liquid, we find through the comparatively comprehensive experiment to ionic liquid absorption sulfur dioxide, ionic liquid reaches about 12% (with the weight ratio of ionic liquid) in the amount that 40 DEG C is sulfur dioxide absorption gas, but be slowly warming up to 60 DEG C-70 DEG C even after higher temperature at the ionic liquid that 40 DEG C of sulfur dioxide absorptions reach capacity, the sulfur dioxide gas scale of construction of adsorbing in ionic liquid sharply declines.In addition, compared with mixture of the present invention, although ionic liquid has good sulfur dioxide absorbability, ionic liquid viscosity is large, and factor have impact on its application in flue gas desulfurization field such as price is high.On the contrary, although the ability of mixture sulfur dioxide absorption of the present invention is not as ionic liquid, but its heat endurance is high, there is the temperature range of wider sulfur dioxide absorption, cost is low, and sulfur dioxide absorption is Physical Absorption, reusable, will, to characteristics such as environments, make it in the desulfurization of industrial smoke, have potential application foreground comparatively widely.There is not yet the bibliographical information about carrying out sulfur dioxide absorption with mixture of the present invention.
Technical scheme: a kind of mixture for flue gas desulfurization, described mixture is made up of chlorinated paraffin wax and base oil.
Preferably, described a kind of mixture for flue gas desulfurization, described chlorine in chlorinated paraffin content is 40%-70%.
Preferably, described a kind of mixture for flue gas desulfurization, described chlorine in chlorinated paraffin content is 40-50%.
Preferred further, described a kind of mixture for flue gas desulfurization, the chlorinity of described chlorinated paraffin wax is 45%.
Described a kind of mixture for flue gas desulfurization, described base oil is mineral base oil, and the kinematic viscosity of described mineral base oil is 40
obe 5-30mm under C
2/ s.
Preferably, described a kind of mixture for flue gas desulfurization, described mineral base oil kinematic viscosity is 40
obe 5-15mm under C
2/ s.
Preferably, described a kind of mixture for flue gas desulfurization, described chlorinated paraffin wax and the weight ratio of base oil are 1:99-40:60.
Preferably, described a kind of mixture for flue gas desulfurization, described chlorinated paraffin wax and the weight ratio of base oil are 1:99-20:80.
Preferred further, described a kind of mixture for flue gas desulfurization, described chlorinated paraffin wax and the weight ratio of base oil are 2:98-5:95.
The described application of a kind of mixture for flue gas desulfurization in flue gas desulfurization.
Technical solution of the present invention is preparation method comprise the following steps:
(1) preparation of mixture:
According to a certain percentage, chlorinated paraffin wax and base oil are mixed, at room temperature stir 30 minutes.As shown in table 1 in detail:
Table 1 tests mixture used and composition
In addition, ionic liquid in contrast, we select 1-butyl-3-methylimidazole hexafluorophosphate (BMIF), and its structure is as follows:
BMIF
(2) experiment of sulfur dioxide absorption:
1. mixture or the ionic liquid of constant weight is weighed with three mouthfuls of reaction bulbs, reaction bulb is placed in the water-bath of uniform temperature, under agitation pass into sulfur dioxide gas, the weight of three mouthfuls of reaction bulbs is measured at different time, record amount and the time of this liquid absorption sulfur dioxide, when reaching constant weight, the amount of same record institute sulfur dioxide absorption and time.
2., under a specified temp, after liquid absorption sulfur dioxide reaches capacity, raise bath temperature, under record different temperatures, the amount that in this liquid, sulfur dioxide gas is residual.
3., under a specified temp, after a mixture sulfur dioxide absorption reaches capacity, the ammonia spirit with 12.5% washs this mixture to remove absorbed sulfur dioxide gas.This mixture being stripped of sulfur dioxide repeats the experiment for doing sulfur dioxide absorption under same temperature again.Analogize therewith, this mixture is at least employed 5 times to check the ability that it repeats sulfur dioxide absorption.
Beneficial effect: above-mentioned experiment the data obtained gathers and is listed in in following table:
The amount of different product sulfur dioxide absorption in time at showing 2:40 DEG C
Table 3. reaches capacity at 40 DEG C and absorbs SO
2sO in rear raised temperature mixture
2the residual quantity of gas
Table 4 sample 6 absorbs SO at different time when reusing
2ability
*
| Number of repetition | 0 | 1 | 2 | 3 | 4 | 5 |
| 0.5 h | 2.19% | 2.18% | 2.17% | 2.12% | 2.22% | 2.27% |
| 1.0 and | 2.18% | 2.28% | 2.26% | 2.21% | 2.23% | 2.32% |
*express with the weight ratio absorbing gas flow and sample.
Detailed description of the invention
The present invention includes but be not limited only to following example:
Example one: sample 7 carries out the experiment of absorption and scrubbing CO_2:
Step one)
Adding kinematic viscosity in 150ml reaction bulb is 5-7mm
2(100.02 g) and put into water-bath, intensification water-bath to 40 DEG C, starts to pass into sulfur dioxide gas in reaction bulb, and connects device for absorbing tail gas, keep the bath temperature of sample at 40 DEG C in venting process for the base oil of/s.Weigh to obtain after continuous ventilation 0.5 h sulfur dioxide absorption 2.21 g, continues ventilation at such a temperature until sulfur dioxide absorption amount of weighing after saturated (sample reaches constant weight after about 1 h) is 2.21 g.(concrete data are in table 2).
Step 2) step one sulfur dioxide absorption is reached saturated sample desulfurization:
Step one gained sample to be reentered in water-bath and slowly to heat up that (10 DEG C/0.5 h), weigh when reaching 50 DEG C, in sample, sulfur dioxide gas residual quantity is 1.93 g, and when 60 DEG C, in sample, sulfur dioxide gas residual quantity is 1.56 g, when 70 DEG C, in sample, sulfur dioxide gas residual quantity is 1.23 g, and when 80 DEG C, in sample, sulfur dioxide gas residual quantity is 1.13 g, when 90 DEG C, in sample, sulfur dioxide gas residual quantity is 0.84 g.(concrete data are in table 3).
Example two: sample 6 carries out the experiment of absorption and scrubbing CO_2:
Step one) preparation of sample 6:
Adding kinematic viscosity in 150ml reaction bulb is 5-7mm
2the base oil of/s (98.01 g), add under stirring chlorinty be 45% chlorinated paraffin wax (2.0 g), and after adding, this mixture was stirring at room temperature 30 minutes, mixed to reach.
Step 2) at 40 DEG C continuously logical sulfur dioxide gas until saturated:
Water-bath put into by the obtained sample of step one, after intensification water-bath to 40 DEG C, starts to pass into sulfur dioxide gas, and connects device for absorbing tail gas, keep the bath temperature of sample to be 40 DEG C in venting process in reaction bulb.Weigh sulfur dioxide absorption amount is 2.19 g after continuous ventilation 0.5 h, continue logical sulfur dioxide gas at such a temperature and, until after saturated (after about 1 h sample constant weight), weigh sulfur dioxide absorption gas is 2.28 g.(concrete data are in table 2)
Step 3) step 2 sulfur dioxide absorption is reached saturated sample desulfurization:
Step 2 gained sample to be reentered in water-bath and slowly to heat up that (10 DEG C/0.5 h), the weighed samples when reaching 50 DEG C, wherein sulfur dioxide gas residual quantity is 1.99 g, weighs when 60 DEG C, and in sample, sulfur dioxide gas residual quantity is 1.61 g, when 70 DEG C, in sample, sulfur dioxide gas residual quantity is 1.23 g, weighs when 80 DEG C, and in sample, sulfur dioxide gas residual quantity is 1.16 g, weigh when 90 DEG C, in sample, sulfur dioxide gas residual quantity is 1.02 g.Stop heating.(concrete data are in table 3)
Sample 1-5 with 8-11 can be prepared by the method identical with example two, when then obtaining 40 DEG C by the step of example two, and the amount of this absorption of sample sulfur dioxide and raise the data of residual quantity of sulfur dioxide in this sample with temperature.
Example three: sample 6 carries out the experiment of repetition sulfur dioxide absorption:
Example two step 3 gained sample is cooled to room temperature, with 12.5% ammonia scrubbing once, detect without after sulfur dioxide gas, drying, then repeat the step 2 of example two and step 3 operates.Step carries out five experiments in due order, and concrete data list in table 4.
Example four: the experiment of sample 6 at room temperature sulfur dioxide absorption:
Will containing sample 6(100.21 g) there-necked flask as under room temperature (25 DEG C), in bottle, pass into sulfur dioxide gas, and connect device for absorbing tail gas.Weigh after continuous ventilation 0.5 h, the amount of sulfur dioxide absorption is 3.07 g, continues to pass into sulfur dioxide gas at such a temperature until weigh after absorption of sample saturated (after about 1 h sample constant weight), and sulfur dioxide absorption gas flow is 3.70 g.
Claims (10)
1., for a mixture for flue gas desulfurization, its characteristic is that described mixture is made up of chlorinated paraffin wax and base oil.
2. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that described chlorine in chlorinated paraffin content is 40%-70%.
3. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that described chlorine in chlorinated paraffin content is 40-50%.
4. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that the chlorinity of described chlorinated paraffin wax is 45%.
5. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that described base oil is mineral base oil, and the kinematic viscosity of described mineral base oil is 40
obe 5-30mm under C
2/ s.
6. a kind of mixture for flue gas desulfurization as claimed in claim 5, its characteristic is that described mineral base oil kinematic viscosity is 40
obe 5-15mm under C
2/ s.
7. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that the weight ratio of described chlorinated paraffin wax and base oil is 1:99-40:60.
8. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that the weight ratio of described chlorinated paraffin wax and base oil is 1:99-20:80.
9. a kind of mixture for flue gas desulfurization as claimed in claim 1, its characteristic is that the weight ratio of described chlorinated paraffin wax and base oil is 2:98-5:95.
10. the application of a kind of mixture for flue gas desulfurization in flue gas desulfurization as described in as arbitrary in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572474.3A CN104474847B (en) | 2014-10-24 | 2014-10-24 | A kind of mixture and its application for flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572474.3A CN104474847B (en) | 2014-10-24 | 2014-10-24 | A kind of mixture and its application for flue gas desulfurization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104474847A true CN104474847A (en) | 2015-04-01 |
| CN104474847B CN104474847B (en) | 2018-04-06 |
Family
ID=52749532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410572474.3A Active CN104474847B (en) | 2014-10-24 | 2014-10-24 | A kind of mixture and its application for flue gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104474847B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589749A (en) * | 2018-11-27 | 2019-04-09 | 苏州佑君环境科技有限公司 | The processing method of tar volatile matter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08252425A (en) * | 1995-03-17 | 1996-10-01 | Shinwa Bosai Kanri Center:Kk | Removal of noxious gas and device therefor |
| CN101301563A (en) * | 2007-09-18 | 2008-11-12 | 王越 | Method using selective active film for purifying gas and equipment thereof |
| CN101912718A (en) * | 2010-08-20 | 2010-12-15 | 重庆紫光化工股份有限公司 | Device and method for absorbing carbon disulfide in hydrogen sulfide gas by using solvent |
| CN103922900A (en) * | 2014-04-03 | 2014-07-16 | 西南石油大学 | Method for removing sulfide in methyl tertiary butyl ether through double-solvent extractive distillation |
-
2014
- 2014-10-24 CN CN201410572474.3A patent/CN104474847B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08252425A (en) * | 1995-03-17 | 1996-10-01 | Shinwa Bosai Kanri Center:Kk | Removal of noxious gas and device therefor |
| CN101301563A (en) * | 2007-09-18 | 2008-11-12 | 王越 | Method using selective active film for purifying gas and equipment thereof |
| CN101912718A (en) * | 2010-08-20 | 2010-12-15 | 重庆紫光化工股份有限公司 | Device and method for absorbing carbon disulfide in hydrogen sulfide gas by using solvent |
| CN103922900A (en) * | 2014-04-03 | 2014-07-16 | 西南石油大学 | Method for removing sulfide in methyl tertiary butyl ether through double-solvent extractive distillation |
Non-Patent Citations (1)
| Title |
|---|
| 关子杰等: "《润滑油应用技术问答》", 30 June 2012, 北京：中国石化出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589749A (en) * | 2018-11-27 | 2019-04-09 | 苏州佑君环境科技有限公司 | The processing method of tar volatile matter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104474847B (en) | 2018-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Efficient absorption of low-concentration SO2 in simulated flue gas by functional deep eutectic solvents based on imidazole and its derivatives | |
| García-Abuín et al. | NMR characterization of carbon dioxide chemical absorption with monoethanolamine, diethanolamine, and triethanolamine | |
| CN102818876B (en) | Method for determining sulfur content in iron ore by combustion iodometry | |
| KR20160089511A (en) | METHOD FOR REMOVING SOx FROM GAS USING POLYOL COMPLEX SOLUTION | |
| CN105013439A (en) | Preparation method of nitrogen and sulfur functionalized carbon foam magnetic microspheres | |
| CN104289075A (en) | Loaded type ion liquid for absorbing SO2 gas and preparation method thereof | |
| Wu et al. | Effect of the pore-size distribution of lime on the reactivity for the removal of SO2 in the presence of high-concentration CO2 at high temperature | |
| CN104474847A (en) | Mixture for flue gas desulphurization and use thereof | |
| CN103908872A (en) | Absorbent for recycling sulfur dioxide from industrial waste gas and recycling method | |
| CN104190352B (en) | A kind of adsorbent for removing sulfur-bearing, oxygen impurities in light hydrocarbon materials stream and preparation thereof, renovation process | |
| CN105797686A (en) | Adsorption material for desulfuration of liquefied petroleum gas and preparation method | |
| Li et al. | Adhesive carrier particles for rapidly hydrated sorbent for moderate-temperature dry flue gas desulfurization | |
| CN109731562A (en) | A kind of two-part regeneration method of porous carbon base desulfurizer | |
| Li et al. | Experimental study on abrasion characteristics of rapidly hydrated sorbent for moderate temperature dry flue gas desulfurization | |
| CN113893678A (en) | Active iron oxide desulfurizer and preparation method thereof | |
| Maina et al. | Use of fly ash, bottom ash and zeolite as additives for enhancing lime reactivity towards flue gas desulfurization | |
| CN108786377A (en) | A method of utilizing mixed ionic liquid sulfur dioxide absorption | |
| CN105642250A (en) | Preparation method of flue gas demercuration and dehumidification adsorbent | |
| Shi et al. | Partially sulfated lime-fly ash sorbents activated by water or steam for SO2 removal at a medium temperature | |
| Yang et al. | Effect of carbon dioxide on the sulfation of high surface area CaCO3 at high temperatures | |
| Liu et al. | Reactivities of NaOH Enhanced Iron Blast Furnace Slag/Hydrated Lime Sorbents toward SO2 at Low Temperatures: Effects of the Presence of CO2, O2, and NO x | |
| CN105879849B (en) | Straw base solid amine sulfur dioxide adsorbent and its preparation and application | |
| CN104174264A (en) | Functional ionic liquid and synthesis method and application thereof | |
| CN105413446B (en) | A kind of solid desulphurizing agents | |
| CN104174263A (en) | Ionic liquid for removing SO2 and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY Free format text: FORMER OWNER: SUZHOU VIVOTIDE BIOTECHNOLOGIES CO., LTD. Effective date: 20150909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150909 Address after: 215000, building 302, building B, science and Technology Pioneer Park, 31 Soochow North Road, Suzhou, Jiangsu, Wuzhong District Applicant after: SUZHOU YOUJUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD. Address before: Wuzhong District town Suzhou city Jiangsu province 215000 gold Jinchang Road No. 360 Applicant before: Suzhou Vivotide Biotechnologies Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |