CN109045993A - A kind of difunctional FeOOH desulfurizer and preparation method thereof - Google Patents
A kind of difunctional FeOOH desulfurizer and preparation method thereof Download PDFInfo
- Publication number
- CN109045993A CN109045993A CN201810967414.XA CN201810967414A CN109045993A CN 109045993 A CN109045993 A CN 109045993A CN 201810967414 A CN201810967414 A CN 201810967414A CN 109045993 A CN109045993 A CN 109045993A
- Authority
- CN
- China
- Prior art keywords
- difunctional
- preparation
- desulfurizing agent
- shade
- ferrous salt
- 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
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of difunctional FeOOH desulfurizers and preparation method thereof, this method is using ferrous salt and sodium metaaluminate as raw material, uniform coprecipitation reaction occurs for the two, it is disposably synthesized by coprecipitation, separation, impurity removal, again successively through it is more than half dry in the shade, add binder, mixing it is pre- squeeze, extruded moulding, a series of processes such as dry in the shade finally obtain mixed-function oxidation iron desulfurizing agent.This desulfurizing agent is able to achieve while removing hydrogen sulfide and carbonyl sulfur, and under saturation Sulfur capacity and regeneration test, desulfurizing agent is excellent in.Preparation flow of the present invention is simple, and product is stable, it can be achieved that process simplification, can be effectively reduced equipment investment, therefore difunctional desulfurizing agent is good in industrial application scape of diving.
Description
Technical field
A kind of difunctional FeOOH desulfurizer of the present invention and preparation method thereof belongs to gas purification and desulfurizing agent preparation
Technology field.
Background technique
In coal chemical industry and petrochemical production process, the serious Sulfur Contained Raw Gas of environmental pollution can be generated.How to have
Effect solves removing sulfide in gas, has become an important topic of coal chemical industry at this stage and petrochemical industry research.Raw material
Sulfide existence form in gas includes inorganic sulfur and organic sulfur, and inorganic sulfur includes hydrogen sulfide, sulfur dioxide, and organic sulfur includes sulphur
Alcohol, carbonyl sulfur, thiophene etc., the removing of organic sulfur usually require to be divided into Physical Absorption or chemical absorbing, and chemical method is will be organic
Sulphur hydrolyzes or is hydroconverted into inorganic sulfur H2S, then removed.
Desulfurizer is single at present, causes the problems such as production technology is complicated, and desulphurization cost is high.In order to guarantee downstream
The stable operation of production needs to remove inorganic sulfur and organic sulfur.Carbonyl sulfur is as a kind of main organic in unstripped gas
Sulphur, tradition removing carbonyl sulfur is Hydrolyze method, simply and without hydrogen participates in reaction, hydrolyst is mainly aluminium oxide or titanium dioxide
Titanium is that carrier carries out carbonyl sulfide hydrolysis, is converted to H2S, then absorbed by desulfurizing agent iron oxide.
Summary of the invention
To solve the shortcomings of the prior art, the invention discloses a kind of difunctional FeOOH desulfurizer and its systems
Preparation Method can remove carbonyl sulfur and hydrogen sulfide simultaneously, reduce sulfur removal technology process, reduce desulfurizing agent cost.
The technical solution adopted in the present invention is as follows:
A kind of preparation method of difunctional FeOOH desulfurizer, includes the following steps:
Step 1 prepares solution: under the conditions of 20-30 DEG C of constant temperature, ferrous salt solution and sodium aluminate solution is respectively configured, makes two
The molar ratio of contained ferrous salt and sodium metaaluminate is 0.9-1:1 in solution；
Step 2, is sufficiently stirred down by 20-30 DEG C of constant temperature, and it is molten that ferrous salt solution with flow velocity 0.2-5ml/min is pumped into sodium metaaluminate
Liquid, while it being passed through air, react 2-5h；
The equation of above-mentioned reaction are as follows:
4Fe(NO3)2+8NaAlO2+14H2O+O2=4FeOOH ↓+8Al (OH)3↓+8NaNO3；
The resulting mixture of step 2 is centrifuged, cleans 2-4 times repeatedly, obtain sediment by step 3；
During which step 4, the sediment that step 3 is obtained constant temperature 2-5h at a temperature of 50-90 DEG C are passed through vapor and adjust environment
Humidity is gradually decrease to 30-40%, and partly dried in the shade sediment；
Step 5 is added appropriate binder in the sediment that partly dries in the shade, is mixed evenly, extruded moulding, obtains molding de-
Sulphur agent；By molding desulfurizing agent under the conditions of 50-90 DEG C constant temperature, until dry in the shade completely to get.
The ferrous salt is one of ferrous nitrate, frerrous chloride, ferrous acetate.
The flow that air is passed through in the step 2 is 20-40ml/min.
The binder is the mixture of one or both of bentonite or polyvinyl alcohol.The additive amount of the binder
For 1-5%.
Mixed-function oxidation iron desulfurizing agent made from method made above.
Compared with the prior art, the invention has the following beneficial effects:
The present invention by co-precipitation method, creative single sintering, ferrous salt and sodium metaaluminate are combined prepare it is in pairs
Function desulfurizing agent, while carbonyl sulfur and hydrogen sulfide are removed, it reduces equipment in practical Chemical Manufacture and uses, simplify sulfur removal technology mistake
Journey reduces desulfurizing agent cost, to reduce investment outlay.This preparation method raw material is cheap and easy to get, reasonable raw material proportioning, and product is stablized,
It is to prepare a kind of very ideal method of mixed-function oxidation iron desulfurizing agent.This desulfurizing agent is provided simultaneously with two function of catalysis and absorption
Can, and repeatable regeneration, before reduction desulfurizing agent, which substitutes, to be consumed, therefore difunctional desulfurizing agent has wide range of industrial applications
Scape.
Detailed description of the invention
Fig. 1 is suction-desorption isotherm figure of mixed-function oxidation iron desulfurizing agent made from embodiment 1；
Fig. 2 is the X-ray full-shape diffracted intensity map of mixed-function oxidation iron desulfurizing agent made from embodiment 1；
Fig. 3 is the desulfurization test result figure of mixed-function oxidation iron desulfurizing agent made from embodiment 1.
Specific embodiment
The present invention is described in further detail with attached drawing combined with specific embodiments below, but protection model of the invention
It encloses and is not limited to these examples, it is all that protection of the invention is included in without departing substantially from the change of present inventive concept or equivalent substitute
Within the scope of.
The chemical substance material that following embodiment uses are as follows: ferrous nitrate, frerrous chloride, sodium metaaluminate, is gone ferrous acetate
Ionized water, air.
Embodiment 1
The preparation process of difunctional FeOOH is as follows:
(1) ferrous salt solution is prepared
5.76g ferrous nitrate is weighed, temperature controls at 25 DEG C, is dissolved in beaker, pours into 100ml volumetric flask, repeatedly washs beaker simultaneously
Volumetric flask is directed water into, 100ml is titrated to, obtains ferrous salt solution；
(2) sodium aluminate solution is prepared
It weighs 1.66g and is dissolved in beaker, import 100ml volumetric flask, repeatedly wash beaker and direct water into volumetric flask, be titrated to
100ml obtains sodium aluminate solution；
(3) it is sufficiently mixed
Ferrous salt solution is pumped into sodium aluminate solution by peristaltic pump with flow velocity 1ml/min, temperature is controlled at 25 DEG C, is being pumped into
Ferrous salt while carry out magnetic agitation, and be passed through air, air mass flow 30ml/min, stirring 4h stops reaction.
Reaction equation
Equation is 4Fe (NO3)2+8NaAlO2+14H2O+O2=4FeOOH ↓+8Al (OH)3↓+8NaNO3
(4) centrifuge washing is dry
Mixed solution comprising sediment is poured into centrifuge tube, 12000 turns/min of centrifuge speed is centrifuged 6min, and removal upper layer is clear
Clear liquid, then plus deionized water is washed, and is centrifuged again, repeated washing 3 times, is obtained sediment；
(5) it partly dries in the shade and mixes pre- squeeze
After carrying out batch experiment preparation, sediment will be obtained and be put into baking oven, maintain 70 DEG C, be successively passed through humidity be 80%, 60%,
40% vapor each one hour, partly dried in the shade sediment；Then it adds binder: being equivalent to the swollen of 2% mass parts of sediment
Moisten the polyvinyl alcohol of soil, 1%, stirring 2h is uniformly mixed under pony mixer, is squeezed twice into banded extruder is pre-；
(6) extruded moulding, preservation of drying in the shade
After the completion of pre- squeeze, obtained shaping desulfurizing agent is put by extruded moulding, shaping desulfurizing agent diameter 3-4mm, length 10mm
In microwave dryer, microwave drying 30min is carried out, is fitted into sample sack, posts label, be placed in drier, closed preservation.
(7) analysis of desulfurizing agent, characterization
A. the difunctional desulfurizing agent of acquisition is detected with specific surface and Porosimetry,
Fig. 1 show suction-desorption isotherm that desulfurizing agent is made in the present embodiment, and synthesis of hydroxy is calculated by multiple spot BET method
The specific surface area of iron oxide is 96.44 m2/ g, slightly above conventional oxidation iron catalyst.
B. crystal phase analysis is carried out with difunctional desulfurizing agent of the X-ray powder diffraction instrument to acquisition,
Fig. 2 show full-shape XRD spectrum, and 21.240o, 53.242o are FeOOH standard diffraction peak in figure, aoxidizes with hydroxyl
Iron standard card PDF#81-0464 fits like a glove, and illustrates that the product of synthesis includes FeOOH, 18.626o, 20.451 in figure
O, 27.795o, 40.659o and aluminium hydroxide standard card PDF#83-2256 coincide, and illustrate in synthetic comprising aluminium hydroxide；
XRD result illustrates in synthetic comprising FeOOH and aluminium hydroxide；
C. the difunctional desulfurizing agent of acquisition is evaluated, tests it and hydrolyzes absorption function:
Test condition are as follows: this test simulation real industrial atmosphere, since concentration of hydrogen sulfide is higher than carbonyl sulfur, distribution in industrial atmosphere
Ratio hydrogen sulfide: carbonyl sulfur substantially 1:1, this test final autogamy gas hydrogen sulfide concentration 107ppm, carbonyl sulfur 89ppm；
Reaction condition are as follows: desulfurizing agent load ratio of height to diameter 3:1,80 DEG C of reaction temperature, pressure 0.2Mpa, air speed 1000h-1,
As shown in figure 3, be desulfurization test result figure,
It reacts air inlet, react result test comparison chart after 1h, 2h, 3h, can be seen that H from figure2S concentration is from 107ppm
To 0.12ppm, close to 100% removing, carbonyl sulfur COS concentration illustrates that the FeOOH of synthesis can from 89ppm to 25ppm or so
It is a kind of difunctional FeOOH desulfurizer to remove two kinds of sulfide simultaneously.
E. it determines that desulfurizing agent is saturated Sulfur capacity, and carries out logical oxygen recovery, evaluate its power of regeneration:
It selects under synthesis gas atmospheric condition, wherein gas H2S content 34ppm, desulfurizing agent loads ratio of height to diameter 5:1, in reaction temperature
30 DEG C, pressure 1.0Mpa, air speed 800h-1Under the conditions of, the H after the detection of sulphur content analyzer FPD detector2S instrument is not detected, and works as outlet
When concentration reaches 0.1ppm, measurement Sulfur capacity is 63.2%.
Desulfurizing agent is regenerated after the failure of above-mentioned desulfurization test, and regeneration gas ingredient is O2 2%, H2O 8%, remaining balance
Gas is N2, air speed control is in 3000h-1, terminate to regenerate until examining in tail gas and not measuring sulfurous gas component.
After regeneration ending, desulfurization performance test again is carried out under the above conditions, after testing 20 times repeatedly, Sulfur capacity is
58.1%。
As it can be seen that the desulfurizing agent of the present embodiment synthesis meets fine de-sulfur demand, therefore industrially there is the latent prospect of application.
Embodiment 2
(1) ferrous salt solution is prepared
5.18g ferrous nitrate is weighed, temperature controls at 30 DEG C, is dissolved in beaker, pours into 100ml volumetric flask, repeatedly washs beaker simultaneously
Volumetric flask is directed water into, 100ml is titrated to, obtains ferrous salt solution；
(2) sodium aluminate solution is prepared
It weighs 1.66g and is dissolved in beaker, import 100ml volumetric flask, repeatedly wash beaker and direct water into volumetric flask, be titrated to
100ml obtains sodium aluminate solution；
(3) it is sufficiently mixed
Ferrous salt solution is pumped into sodium aluminate solution by peristaltic pump with flow velocity 0.5ml/min, temperature is controlled at 30 DEG C, pumped
Magnetic agitation is carried out while the ferrous salt entered, and is passed through air, and air mass flow 20ml/min, stirring 5h stops reaction.
Reaction equation
Equation is 4Fe (NO3)2+8NaAlO2+14H2O+O2=4FeOOH ↓+8Al (OH)3↓+8NaNO3
(4) centrifuge washing is dry
Mixed solution comprising sediment is poured into centrifuge tube, 10000 turns/min of centrifuge speed is centrifuged 8min, and removal upper layer is clear
Clear liquid, then plus deionized water is washed, and is centrifuged again, repeated washing 4 times, is obtained sediment；
(5) it partly dries in the shade and mixes pre- squeeze
After carrying out batch experiment preparation, sediment will be obtained and be put into baking oven, maintain 90 DEG C, be successively passed through humidity be 70%, 50%,
30% vapor each 1.5 hours, partly dried in the shade sediment；Then it adds binder: being equivalent to the swollen of 2% mass parts of sediment
Profit soil, it is described that the mixture that bentonitic amount can also be 1.5%, 2.5% or 3% or bentonite and polyvinyl alcohol is added, it should
The total amount of mixture is the 1-5% mass parts of sediment；2h is stirred under pony mixer to be uniformly mixed, and is squeezed into banded extruder is pre-
Twice；
(6) extruded moulding, preservation of drying in the shade
After the completion of pre- squeeze, extruded moulding, desulfurizing agent after molding is put into baking by shaping desulfurizing agent diameter 3-4mm, length 10mm
Case maintains 70 DEG C, until being dried in the shade completely to get desulfurizing agent obtained is fitted into sample sack, posts label, is placed in drier
It is interior, closed preservation.
Embodiment 3
(1) ferrous salt solution is prepared
3.77g frerrous chloride is weighed, temperature controls at 28 DEG C, is dissolved in beaker, pours into 100ml volumetric flask, repeatedly washs beaker simultaneously
Volumetric flask is directed water into, 100ml is titrated to, obtains ferrous salt solution；
(2) sodium aluminate solution is prepared
It weighs 1.66g and is dissolved in beaker, import 100ml volumetric flask, repeatedly wash beaker and direct water into volumetric flask, be titrated to
100ml obtains sodium aluminate solution；
(3) it is sufficiently mixed
Ferrous salt solution is pumped into sodium aluminate solution by peristaltic pump with flow velocity 0.5ml/min, temperature is controlled at 30 DEG C, pumped
Magnetic agitation is carried out while the ferrous salt entered, and is passed through air, and air mass flow 40ml/min, stirring 2h stops reaction.
Reaction equation
Equation is 4FeCl2+8NaAlO2+14H2O+O2=4FeOOH ↓+8Al (OH)3↓+8NaCl
(4) centrifuge washing is dry
Mixed solution comprising sediment is poured into centrifuge tube, 10000 turns/min of centrifuge speed is centrifuged 8min, and removal upper layer is clear
Clear liquid, then plus deionized water is washed, and is centrifuged again, repeated washing 4 times, is obtained sediment；
(5) it partly dries in the shade and mixes pre- squeeze
After carrying out batch experiment preparation, sediment will be obtained and be put into baking oven, maintain 90 DEG C, be successively passed through humidity be 70%, 50%,
30% vapor each 1.5 hours, partly dried in the shade sediment；Then it adds binder: being equivalent to the poly- of 1% mass parts of sediment
Vinyl alcohol, the amount that polyvinyl alcohol is added can also be 1.5%, 2%, 2.5% or 3%；It is equal that pony mixer stirs 2h mixing
It is even, it is squeezed twice into banded extruder is pre-；
(6) extruded moulding, preservation of drying in the shade
After the completion of pre- squeeze, extruded moulding, desulfurizing agent after molding is put into baking by shaping desulfurizing agent diameter 3-4mm, length 10mm
Case maintains 70 DEG C, until being dried in the shade completely to get desulfurizing agent obtained is fitted into sample sack, posts label, is placed in drier
It is interior, closed preservation.
The present invention is not limited by embodiment illustrated herein, and is to fit to and principles disclosed herein and novelty
The consistent widest range of feature.
Claims (6)
1. a kind of preparation method of difunctional FeOOH desulfurizer, which comprises the steps of:
Step 1 prepares solution: under the conditions of 20-30 DEG C of constant temperature, ferrous salt solution and sodium aluminate solution is respectively configured；
Step 2, is sufficiently stirred down by 20-30 DEG C of constant temperature, and it is molten that ferrous salt solution with flow velocity 0.2-5ml/min is pumped into sodium metaaluminate
Liquid, while it being passed through air, react 2-5h；So that contained ferrous salt and meta-aluminic acid in the ferrous salt solution and sodium aluminate solution
The molar ratio of sodium is 0.9-1:1；
The resulting mixture of step 2 is centrifuged, cleans repeatedly, obtain sediment by step 3；
Step 4, by sediment that step 3 obtains, constant temperature 2-5h dries in the shade at a temperature of 50-90 DEG C, is during which passed through vapor adjusting
Ambient humidity is gradually decrease to 30-40%, and partly dried in the shade sediment；
Step 5 is added appropriate binder in the sediment that partly dries in the shade, is mixed evenly, extruded moulding, obtains molding de-
Sulphur agent；By molding desulfurizing agent under the conditions of 50-90 DEG C constant temperature, until dry in the shade completely to get.
2. a kind of preparation method of difunctional FeOOH desulfurizer according to claim 1, which is characterized in that described
Ferrous salt is one of ferrous nitrate, frerrous chloride, ferrous acetate.
3. a kind of preparation method of difunctional FeOOH desulfurizer according to claim 1, which is characterized in that described
The flow that air is passed through in step 2 is 20-40ml/min.
4. a kind of preparation method of difunctional FeOOH desulfurizer according to claim 1, which is characterized in that described
The additive amount of binder is 1-5%.
5. a kind of preparation method of difunctional FeOOH desulfurizer according to claim 1, which is characterized in that described
Binder is one or both of bentonite or polyvinyl alcohol mixture.
6. difunctional FeOOH desulfurizer made from -5 any preparation methods according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967414.XA CN109045993B (en) | 2018-08-23 | 2018-08-23 | Double-functional iron oxyhydroxide desulfurizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967414.XA CN109045993B (en) | 2018-08-23 | 2018-08-23 | Double-functional iron oxyhydroxide desulfurizer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109045993A true CN109045993A (en) | 2018-12-21 |
| CN109045993B CN109045993B (en) | 2021-04-27 |
Family
ID=64756694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810967414.XA Active CN109045993B (en) | 2018-08-23 | 2018-08-23 | Double-functional iron oxyhydroxide desulfurizer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109045993B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120970A (en) * | 1995-07-11 | 1996-04-24 | 沈阳催化剂厂 | Normal-temp. desulphurizer |
| CN101054538A (en) * | 2007-02-02 | 2007-10-17 | 华东理工大学 | Iron-base desulfurizer for catalyzing, translating and absorbing carbonyl sulfur at middle-low temperature and preparation thereof |
| CN101462063A (en) * | 2007-12-21 | 2009-06-24 | 大连普瑞特化工科技有限公司 | Desulfurizing agent for removing carbonyl sulfur, thiol and hydrogen sulphide by catalytic oxidation as well as preparation and application |
| CN101559379A (en) * | 2009-05-22 | 2009-10-21 | 昆明理工大学 | Catalyst for hydrolyzing carbonyl sulfur and preparation method thereof |
| CN101591555A (en) * | 2008-05-28 | 2009-12-02 | 北京三聚环保新材料股份有限公司 | A kind of organic sulfur desulfurizer and preparation method thereof |
| US20110076224A1 (en) * | 2008-02-15 | 2011-03-31 | Francesco Garetto | Process for producing red iron oxide |
| CN102049179A (en) * | 2009-10-30 | 2011-05-11 | 北京三聚环保新材料股份有限公司 | Method for preparing supported iron oxide series desulfurizing agent |
| CN104437074A (en) * | 2014-12-31 | 2015-03-25 | 沈阳三聚凯特催化剂有限公司 | Desulfurizing agent for removing hydrogen sulfide and carbonyl sulfide at the same time |
| CN105056719A (en) * | 2015-07-30 | 2015-11-18 | 福州大学化肥催化剂国家工程研究中心 | Preparation method of FeOOH low-temperature desulfurizer and desulfurizer prepared through same |
| CN107335445A (en) * | 2017-08-17 | 2017-11-10 | 江苏天东新材料科技有限公司 | A kind of preparation method and application of double-function fine desulfurizing agent |
-
2018
- 2018-08-23 CN CN201810967414.XA patent/CN109045993B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120970A (en) * | 1995-07-11 | 1996-04-24 | 沈阳催化剂厂 | Normal-temp. desulphurizer |
| CN101054538A (en) * | 2007-02-02 | 2007-10-17 | 华东理工大学 | Iron-base desulfurizer for catalyzing, translating and absorbing carbonyl sulfur at middle-low temperature and preparation thereof |
| CN101462063A (en) * | 2007-12-21 | 2009-06-24 | 大连普瑞特化工科技有限公司 | Desulfurizing agent for removing carbonyl sulfur, thiol and hydrogen sulphide by catalytic oxidation as well as preparation and application |
| US20110076224A1 (en) * | 2008-02-15 | 2011-03-31 | Francesco Garetto | Process for producing red iron oxide |
| CN101591555A (en) * | 2008-05-28 | 2009-12-02 | 北京三聚环保新材料股份有限公司 | A kind of organic sulfur desulfurizer and preparation method thereof |
| CN101559379A (en) * | 2009-05-22 | 2009-10-21 | 昆明理工大学 | Catalyst for hydrolyzing carbonyl sulfur and preparation method thereof |
| CN102049179A (en) * | 2009-10-30 | 2011-05-11 | 北京三聚环保新材料股份有限公司 | Method for preparing supported iron oxide series desulfurizing agent |
| CN104437074A (en) * | 2014-12-31 | 2015-03-25 | 沈阳三聚凯特催化剂有限公司 | Desulfurizing agent for removing hydrogen sulfide and carbonyl sulfide at the same time |
| CN105056719A (en) * | 2015-07-30 | 2015-11-18 | 福州大学化肥催化剂国家工程研究中心 | Preparation method of FeOOH low-temperature desulfurizer and desulfurizer prepared through same |
| CN107335445A (en) * | 2017-08-17 | 2017-11-10 | 江苏天东新材料科技有限公司 | A kind of preparation method and application of double-function fine desulfurizing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109045993B (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sun et al. | Research into the reaction process and the effect of reaction conditions on the simultaneous removal of H 2 S, COS and CS 2 at low temperature | |
| CN108516591A (en) | A kind of bigger serface FeOOH desulfurizing agent and preparation method thereof | |
| SA111320727B1 (en) | Method for Processing a Sulfur-Containing Gas and a Hydrogenation Catalyst used Therefor | |
| CN103272610B (en) | A kind of titanium base fine desulfurization catalyst and preparation method thereof and using method | |
| Yi et al. | Simultaneous catalytic hydrolysis of low concentration of carbonyl sulfide and carbon disulfide by impregnated microwave activated carbon at low temperatures | |
| CN106190340B (en) | Renewable metal composite oxide desulfurizing agent for high-temp gas and preparation method | |
| CN106621797A (en) | Efficient composite oxide desulfurizing agent preparation method | |
| CN103752317A (en) | Preparation of Co3O4 / CeO2 composite oxide and catalytic application | |
| CN110394159A (en) | The method and its application of one-step method preparation ion exchange ZIF-8 adsorbent | |
| CN103480355B (en) | Organic sulfur hydrolysis catalyst applicable to natural gas large-scale sulfur recovery device and preparation method thereof | |
| CN104248969B (en) | The supporting organic sulfur hydrolyst of natural gas large-scale sulfur recovery device and preparation method | |
| CN114229852B (en) | SO in flue gas is removed by utilizing steel slag 2 Method for synergistically extracting silica gel | |
| CN107433204A (en) | Reduce load-type iron-based catalyst of sulfur dioxide in flue gas and nitrogen oxides and preparation method and application simultaneously | |
| CN109045993A (en) | A kind of difunctional FeOOH desulfurizer and preparation method thereof | |
| CN114345115A (en) | High-selectivity desulfurizer under acid gas working condition and preparation method thereof | |
| CN108926988A (en) | A kind of preparation method of copper-based desulfurizing agent, copper-based desulfurizing agent and preparation system | |
| CN110292935A (en) | A kind of doped meso-porous LaCoO of Mn3Perovskite type catalyst and preparation method thereof | |
| CN104549542A (en) | Carrier, carbonyl sulfide hydrolysis catalyst based on carrier and preparation method of carbonyl sulfide hydrolysis catalyst | |
| CN103301742B (en) | Desulfurizing agent and preparation method thereof | |
| CN113484311A (en) | Method for determining content of calcium sulfate in desulfurization gypsum of coal-fired power plant | |
| CN109420422A (en) | A method of H 2 S-containing gas is removed using ultrasonic equipment | |
| CN105038863B (en) | Fine desulfurizer and preparation method thereof | |
| CN103611544B (en) | Preparation method capable of improving low-temperature activity of low-pressure cobalt-molybdenum sulfur-tolerant shift catalyst | |
| CN107999020A (en) | A kind of preparation method of Woelm Alumina dealcoholysis agent | |
| CN109248689A (en) | A kind of macroporous oxide catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |