CN102527322A - Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent - Google Patents
Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent Download PDFInfo
- Publication number
- CN102527322A CN102527322A CN2012100374918A CN201210037491A CN102527322A CN 102527322 A CN102527322 A CN 102527322A CN 2012100374918 A CN2012100374918 A CN 2012100374918A CN 201210037491 A CN201210037491 A CN 201210037491A CN 102527322 A CN102527322 A CN 102527322A
- Authority
- CN
- China
- Prior art keywords
- gasoline
- temperature
- adsorbent
- precipitates
- hydrogen
- 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.)
- Pending
Links
Abstract
The invention relates to a method for preparing a gasoline deeply desulfurized adsorbent and the application of the adsorbent. The method comprises the following steps of: mixing the following components in percentage by weight: 6 to 15 percent of zinc nitrate, 0.5 to 5 percent of nickel nitrate, 10 to 15 percent of sodium dodecyl sulfate or polyethylene glycol, 25 to 50 percent of carbamide and the balance water and preparing the components into a mixed solution, and stirring the mixed solution for 1 to 10 hours at room temperature; raising the temperature of the mixture to 80 to 110 DEG C, and reacting for 1 to 12 hours; filtering the generated precipitates, washing the precipitates for 1 to 5 times with deionized water, and washing the precipitates for 1 to 5 times with anhydrous ethanol; drying the washed precipitates at the temperature of 100 to 120 DEG C, and staying overnight, calcining the precipitates for 3 to 8 hours at the temperature of 400 to 600 DEG C; granulating the precipitates to obtain an absorbent desulfurizer; reducing the absorbent desulfurizer in hydrogen atmosphere for 1 to 6 hours at the temperature of 350 to 500 DEG C, the pressure of 0.1 to 0.5MPa and the hydrogen flow rate of 50 to 200ml/minute; and desulfurizing gasoline with sulfur which is less than or equal to 100mg/L in content in a raw material liquid, wherein the temperature is 350 to 500 DEG C, the reaction pressure is 0.5 to 2MPa, the mass ratio of hydrogen to raw material is 0.006-0.036, and the gasoline liquid airspeed is 5 to 100h <-1>. The effect of deep desulfurization is achieved. The method is simple in preparation process, easy in operation, low in requirements on processing equipment, high in desulfurizing speed and good in desulfurizing effect.
Description
Technical field
The present invention relates to prepare a kind of deep desulfurization of gasoline adsorbent and application.Belong in the petroleum refining process process for refining and desulfurizing agent preparation field to oil product.
Background technology
Sulphur in the fuel oil is one of main source of atmosphere pollution, and the pollution that vehicle exhaust caused accounts for more than 60% of urban atmospheric pollution.Along with improving constantly of environmental requirement, the content that reduces sulphur in the vehicle fuel is very urgent.Developed country such as America and Europe has issued the environmental legislation of a series of strictnesses successively in recent years, limits the sulfur content in the vehicle fuel.Fuel oil does not have sulfuration has become a kind of trend.The sulfur content of China's fuel oil product also has bigger gap with developed countries at present, comes the sulfur content in the fuel limitation oil but China has also put into effect a series of environmental legislation in recent years, and China's fuel oil product sulfur content progressively walks with world's pace.Thereby the work of exploitation fuel oil deep desulfuration (refer generally to desulfurization after the scope of product sulfur content below 10ppm) just seems most important.
Present topmost sulfur removal technology is hydrodesulfurization (HDS), but in order to reach the purpose of deep desulfuration, hydrodesulfurization must be carried out under HTHP, not only causes the rising of production cost, and can cause the remarkable reduction of octane number.Therefore numerous in recent years scholars have carried out a large amount of research to desulfur technologies simple to operate, that production cost is low such as alkylating desulfurization, adsorption desulfurize, abstraction desulfurization, oxidation sweetening, film separation desulfurization, biological desulphurizations.The reaction adsorption desulfurize is coupled hydrodesulfurization and adsorption desulfurize, and it is harsh that he has overcome hydrodesulfurizationconditions conditions, is difficult to remove the shortcoming of thiophene-type sulfide; Can significantly reduce the sulfur-containing compound in the fuel oil, realize the deep desulfuration of fuel oil, and it have sulfur capacity big; Selectivity is good; Little to octane number influence, sulfur-bearing not in the reaction end gas can not cause a series of advantages such as secondary pollution.Therefore reacting adsorption desulfurize has the good industrial prospect.
CN 1422177A provides a kind of desulfurization and has been used for the adsorbent of desulfurization; This adsorbent uses promoter metals such as nickel and/or cobalt dipping to comprise the adsorbing agent carrier of zinc oxide, expanded perlite and aluminium oxide; Make the chemical valence reduction of promoter metals then, because this adsorbent needs the dipping promoter metals after will preparing carrier earlier, the preparation process is loaded down with trivial details; And there is the promoter metals dipping not exclusively, shortcoming pockety.
CN 101249440A provides a kind of aromatic hydrocarbons or has contained the hydrogenation adsorption desulfurize catalyst and the method for making of aroamtic hydrocarbon raw material.The percetage by weight of catalyst consists of: the nickel of going back ortho states is 5-70%, and zinc oxide is 30-95%, and aluminium oxide is 0-50%.Raw material contacts with catalyst through fixed bed, and it is big to have a sulfur capacity, and the characteristics that the aromatic hydrocarbons loss is little are applicable to the desulfurization that contains aroamtic hydrocarbon raw material.This catalyst adopts ammonium carbonate to make precipitating reagent, because alkalescence is big, settling velocity is fast, and the particle of generation is inhomogeneous.
CN 158962A provides a kind of catalytic gasoline absorbing desulfurization catalyst and preparation method, and its percetage by weight consists of: particle diameter is the nano zine oxide 10-85% of 100-500 μ m, silica 5-80%, aluminium oxide 5-30%, reduced state nickel 4-45%.Each component exists with mixed form.Because this catalyst adopts the preparation of mechanical mixture method, so that voidage is low, specific area is little, the component skewness.
CN 1907544A provides a kind of nano-desulfurizer that is used for the gas at normal temperature desulfurization and preparation method thereof, and desulfurizing agent mainly comprises iron oxide and zinc oxide, and its mol ratio is 1: 13-47.This adsorbent also is not suitable for the desulfurization of gasoline.
CN101716449 provides a kind of preparation method of regenerable normal-temperature nano-desulfurizer, and desulfurizing agent mainly comprises cobalt oxide and zinc oxide, particle diameter 12-15nm.Be 5% in partial pressure of oxygen, temperature is can carry out 5 regeneration under 370 ℃ the condition, the accumulation Sulfur capacity of sulfuration/regeneration cycle desulfurization is 19.1%, can reach 930min service life.
Summary of the invention
The purpose of this invention is to provide a kind of noble metal that do not use, low price, preparation technology is simple, and is easy to operate, and rate of sulphur expulsion is fast, can under high-speed, realize deep desulfuration, and sulfur capacity is big, desulfurization effect, regenerability is good.
A kind of deep desulfurization of gasoline preparation of adsorbent of the present invention is characterized in that the preparation process is following:
(a) be water with zinc nitrate 6-15%, nickel nitrate 0.5-5%, lauryl sodium sulfate or polyethylene glycol 10-15%, urea 25-50%, surplus, be made into mixed solution, stir 1-10h under the room temperature; Heat up in 80-110 ℃ reaction 1-12h then;
(b) sedimentation and filtration that step (a) is generated spends deionised water 1-5 time, uses absolute ethanol washing 1-5 time again;
(c) calcine 3-8h down with the 100-120 ℃ of following dried overnight that be deposited in after step (b) washing, and at 400-600 ℃; Granulation gets adsorption desulfurizing agent.
Adsorption desulfurizing agent of the present invention is 15-18nm through the test particle diameter of X-ray diffractometer, is determined at the adsorption volume under the different adsorptive pressures through full-automatic specific surface and lacunarity analysis appearance, and the surface area that calculates adsorbent through the BET equation is 25-30m
2/ g tests Sulfur capacity to the adsorption desulfurize of gasoline and reaches 386mg/g, has the advantages that particle diameter is little, specific area is big, Sulfur capacity is high.
Desulfurizing agent provided by the invention is regenerated easily, and the absorption sulfur capacity after the regeneration is more than 99% of fresh desulfurizing agent sulfur capacity.
The application of adsorption desulfurizing agent of the present invention is following:
(1) adsorption desulfurizing agent is reduced under nitrogen atmosphere, reduction temperature is in 350-500 ℃ of scope, and reduction pressure is 0.1-0.5MPa, and the recovery time is 1-6h, and hydrogen flow rate is 50-200ml/min;
(2) gasoline to material liquid sulfur content≤100mg/L carries out desulfurization, and temperature is at 350-500 ℃, and reaction pressure is 0.5-2MPa, and hydrogen is 0.006-0.036 with the raw materials quality ratio, and gasoline liquid air speed is 5-100h
-1
Described reducing atmosphere is pure hydrogen, nitrogen and hydrogen mixture or other hydrogeneous atmosphere.
Desulfuration adsorbent involved in the present invention and Ni (Co)-Mo/Al
2O
3Compare outstanding feature and be in the process that removes sulfide and do not form hydrogen sulfide, and be adsorbed on the desulfuration adsorbent, in tail gas, do not have the existence of sulphur, reduce the vent gas treatment operation.
The advantage of adsorption desulfurizing agent of the present invention is not use noble metal, and raw material sources are wide, and is cheap.And preparation technology is simple, and process equipment requires low, and sulfur capacity is big, can under high-speed, realize deep desulfuration, and favorable regeneration effect can be recycled.
The specific embodiment
Below in conjunction with instantiation the present invention is described further, so that to understanding of the present invention, but therefore do not limit the present invention.
Embodiment 1
Take by weighing 22g zinc nitrate, 1g nickel nitrate, 16g lauryl sodium sulfate, 60g urea and be made into mixed solution, stir 2h under the room temperature and generate solution with 60g water.The solution that generates transferred in 80 ℃ of waters bath with thermostatic control react 6h.Sedimentation and filtration with generating respectively washs 1 time with deionized water and absolute ethyl alcohol respectively.With the 120 ℃ of following dried overnight that are deposited in after the washing, and under 500 ℃, calcine 3h.Pressed powder compression molding after the calcining, being ground into particle diameter is 20-40 purpose adsorbent.Adsorbent consists of: nickel content is 3.2% (percentage by weight), and zinc oxide content is 96.8% (percentage by weight).
Embodiment 2
Get the 0.50g embodiment 1 prepared adsorbent internal diameter 8mm that packs into, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 400 ℃, and reduction pressure is 0.1MPa, and hydrogen flow rate is 50ml/min, recovery time 2h; Reaction condition is feed gasoline sulfur content 103mg/L, and 370 ℃ of reaction temperatures, reaction pressure are 1.0MPa, and hydrogen is 0.006 with the quality of gasoline ratio, and gasoline liquid air speed is 60h
-1, the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 212mg/g.
Embodiment 3
Take by weighing 22g zinc nitrate, 5g nickel nitrate, 30g lauryl sodium sulfate, 95g urea and be made into mixed solution, stir 2h under the room temperature and generate bright solution with 120g water.The bright solution that generates transferred in 80 ℃ of waters bath with thermostatic control react 6h.Sedimentation and filtration with generating spends deionised water 5 times, uses absolute ethanol washing again 5 times.With the 120 ℃ of following dried overnight that are deposited in after the washing, and under 500 ℃, calcine 3h.With the pressed powder compression molding after the calcining, being ground into particle diameter is 20-40 purpose adsorbent.Adsorbent consists of: nickel content is 14.3% (percentage by weight), and zinc oxide content is 85.7% (percentage by weight).
Embodiment 4
Get the 0.50g embodiment 3 prepared adsorbents internal diameter 8mm that packs into, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 450 ℃, and reduction pressure is 0.3M Pa, and hydrogen flow rate is 200ml/min, recovery time 2h; Reaction condition is feed gasoline sulfur content 60mg/L, and 450 ℃ of reaction temperatures, reaction pressure are 1.0M Pa; Hydrogen is 0.006 with the quality of gasoline ratio; Gasoline liquid air speed is 40h-1, and the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 301mg/g.
Embodiment 5
Take by weighing 18g zinc nitrate, 5g nickel nitrate, 38g lauryl sodium sulfate, 70g urea and be made into mixed solution, stir 2h under the room temperature and generate bright solution with 130g water.The bright solution that generates transferred in 80 ℃ of waters bath with thermostatic control react 6h.With the sedimentation and filtration that generates, respectively with deionized water and absolute ethanol washing 2 times.With the 120 ℃ of following dried overnight that are deposited in after the washing, and under 500 ℃, calcine 3h.With the pressed powder compression molding after the calcining, being ground into particle diameter is 20-40 purpose adsorbent.Adsorbent consists of: nickel content is 17% (percentage by weight), and zinc oxide content is 83% (percentage by weight).
Embodiment 6
Get the 0.50g embodiment 5 prepared adsorbents internal diameter 8mm that packs into, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 400 ℃, and reduction pressure is 0.3M Pa, and hydrogen flow rate is 50ml/min, recovery time 2h; Reaction condition feed gasoline sulfur content 58mg/L, 370 ℃ of temperature, reaction pressure are 0.5M Pa; Hydrogen is 0.024 with the quality of gasoline ratio; Gasoline liquid air speed is 60h-1, and the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 264mg/g.
Embodiment 7
Take by weighing 20g zinc nitrate, 8.5g nickel nitrate, 24g polyethylene glycol, 85g urea and be made into mixed solution, stir 2h under the room temperature and generate bright solution with 45g water.The bright solution that generates transferred in 80 ℃ of waters bath with thermostatic control react 6h.Sedimentation and filtration with generating respectively washs 1 time with deionized water and absolute ethyl alcohol respectively.With the 120 ℃ of following dried overnight that are deposited in after the washing, and under 500 ℃, calcine 3h.With the pressed powder compression molding after the calcining, being ground into particle diameter is 20-40 purpose adsorbent.Adsorbent consists of: nickel content is 23.9% (percentage by weight), and zinc oxide content is 76.1% (percentage by weight).
Embodiment 8
Get the 0.50g embodiment 7 prepared adsorbents internal diameter 8mm that packs into, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 400 ℃, and reduction pressure is 0.3M Pa, and hydrogen flow rate is 50ml/min, recovery time 4h; The gasoline of reaction condition feed gasoline sulfur content 58mg/L, 500 ℃ of temperature, reaction pressure are 1.0M Pa; Hydrogen is 0.036 with the quality of gasoline ratio; The liquid air speed is 90h-1, and the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 279mg/g.
Embodiment 9
Get the 0.50g embodiment 3 prepared adsorbents internal diameter 8mm that packs into, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 400 ℃, and reduction pressure is 0.5M Pa, and hydrogen flow rate is 50ml/min, recovery time 2h; Reaction condition feed gasoline sulfur content 58mg/L, 370 ℃ of temperature, reaction pressure are 1.0M Pa; The volume ratio of hydrogen and gasoline is 100; The liquid air speed is 10h-1, and the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 386mg/g.
Embodiment 10
With the adsorbent of inactivation among the embodiment 3 in air atmosphere in 500 ℃ of roasting 3h, the internal diameter 8mm that packs into of the adsorbent after the roasting, the middle part of the stainless steel tubular type reactor of long 30cm.Pipe top, bottom filling 20-40 purpose inert substance quartz sand.Reduction temperature is 450 ℃, and reduction pressure is 0.3M Pa, and hydrogen flow rate is 200ml/min, recovery time 2h; Reaction condition feed gasoline sulfur content 58mg/L, 450 ℃ of temperature, reaction pressure are 1.0M Pa; Hydrogen is 0.006 with the quality of gasoline ratio; The liquid air speed is 40h-1, and the sulfur content of gained sulfur-free gasoline is result such as table one over time, and the Sulfur capacity of adsorption desulfurizing agent is 299mg/g.
Table one, adsorption desulfurize embodiment result
Claims (2)
1. prepare a kind of deep desulfurization of gasoline adsorbent, it is characterized in that the preparation process is following:
(a) be water with zinc nitrate 6-15%, nickel nitrate 0.5-5%, lauryl sodium sulfate or polyethylene glycol 10-15%, urea 25-50%, surplus, be made into mixed solution, stir 1-10h under the room temperature; Heat up in 80-110 ℃ reaction 1-12h then;
(b) sedimentation and filtration that step (a) is generated spends deionised water 1-5 time, uses absolute ethanol washing 1-5 time again;
(c) calcine 3-8h down with the 100-120 ℃ of following dried overnight that be deposited in after step (b) washing, and at 400-600 ℃; Granulation gets adsorption desulfurizing agent.
2. the application of a kind of deep desulfurization of gasoline adsorbent as claimed in claim 1 is characterized in that:
(1) adsorption desulfurizing agent is reduced under nitrogen atmosphere, reduction temperature is in 350-500 ℃ of scope, and reduction pressure is 0.1-0.5M Pa, and the recovery time is 1-6h, and hydrogen flow rate is 50-200ml/min;
(2) gasoline to material liquid sulfur content≤100mg/L carries out desulfurization, and temperature is at 350-500 ℃, and reaction pressure is 0.5-2M Pa, and hydrogen is 0.006-0.036 with the raw materials quality ratio, and gasoline liquid air speed is 5-100h
-1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100374918A CN102527322A (en) | 2012-02-20 | 2012-02-20 | Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100374918A CN102527322A (en) | 2012-02-20 | 2012-02-20 | Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102527322A true CN102527322A (en) | 2012-07-04 |
Family
ID=46336074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100374918A Pending CN102527322A (en) | 2012-02-20 | 2012-02-20 | Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102527322A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706227A (en) * | 2013-12-23 | 2014-04-09 | 北京三聚环保新材料股份有限公司 | Preparation method of normal temperature compound desulfurizer |
| CN104437357A (en) * | 2014-10-20 | 2015-03-25 | 安徽省宿州市龙华机械制造有限公司 | Antibacterial modified active carbon desulfurizing particles prepared from tobacco stems and tea seed hulls and preparation method of antibacterial modified active carbon desulfurizing particles |
| CN106398746A (en) * | 2016-11-28 | 2017-02-15 | 王健 | Gasoline desulfurization method |
| CN110201637A (en) * | 2019-06-13 | 2019-09-06 | 中国石油大学(华东) | A kind of preparation method for organic sulfur compound removing adsorbent in natural gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249440A (en) * | 2007-12-21 | 2008-08-27 | 中国科学院山西煤炭化学研究所 | Aromatic hydrocarbons or hydrogenation adsorption desulfurize catalyst containing aromatic hydrocarbons raw material and preparing method and applications |
| CN101480619A (en) * | 2009-01-05 | 2009-07-15 | 北京化工大学 | Method for preparing acidified solid catalyst for synthesizing biodiesel |
| CN101890377A (en) * | 2009-05-19 | 2010-11-24 | 中国石油化工股份有限公司 | Zirconia-alumina composite oxide carrier and method for preparing same |
| CN102211786A (en) * | 2011-03-02 | 2011-10-12 | 北京冶科纳米科技有限公司 | Preparation method of nanoscale indium tin oxide powder |
-
2012
- 2012-02-20 CN CN2012100374918A patent/CN102527322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249440A (en) * | 2007-12-21 | 2008-08-27 | 中国科学院山西煤炭化学研究所 | Aromatic hydrocarbons or hydrogenation adsorption desulfurize catalyst containing aromatic hydrocarbons raw material and preparing method and applications |
| CN101480619A (en) * | 2009-01-05 | 2009-07-15 | 北京化工大学 | Method for preparing acidified solid catalyst for synthesizing biodiesel |
| CN101890377A (en) * | 2009-05-19 | 2010-11-24 | 中国石油化工股份有限公司 | Zirconia-alumina composite oxide carrier and method for preparing same |
| CN102211786A (en) * | 2011-03-02 | 2011-10-12 | 北京冶科纳米科技有限公司 | Preparation method of nanoscale indium tin oxide powder |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706227A (en) * | 2013-12-23 | 2014-04-09 | 北京三聚环保新材料股份有限公司 | Preparation method of normal temperature compound desulfurizer |
| CN103706227B (en) * | 2013-12-23 | 2017-07-21 | 北京三聚环保新材料股份有限公司 | A kind of preparation method of normal temperature compound desulfurizer |
| CN104437357A (en) * | 2014-10-20 | 2015-03-25 | 安徽省宿州市龙华机械制造有限公司 | Antibacterial modified active carbon desulfurizing particles prepared from tobacco stems and tea seed hulls and preparation method of antibacterial modified active carbon desulfurizing particles |
| CN106398746A (en) * | 2016-11-28 | 2017-02-15 | 王健 | Gasoline desulfurization method |
| CN106398746B (en) * | 2016-11-28 | 2018-06-19 | 王健 | The sulfur method of gasoline |
| CN110201637A (en) * | 2019-06-13 | 2019-09-06 | 中国石油大学(华东) | A kind of preparation method for organic sulfur compound removing adsorbent in natural gas |
| CN110201637B (en) * | 2019-06-13 | 2021-11-26 | 中石化中原石油工程设计有限公司 | Preparation method of adsorbent for removing organic sulfide in natural gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102343249B (en) | Hydrocarbon oil desulphurization adsorbent, its preparation method and its application | |
| CN102029140B (en) | Desulfurizing agent with nuclear/shell structure and preparation method | |
| CN102357364A (en) | Preparation of activated carbon-based catalyst used for selective reduction desulphurization of flue gas | |
| CN102294222A (en) | Hydrocarbon oil desulfurization adsorbent and preparation method and application thereof | |
| CN108187605B (en) | A kind of highly selective gasoline adsorption deep desulfurizer of support type hydroxide and preparation method thereof | |
| CN102899083B (en) | Ultra-deep combined desulphurization method for full-fraction FCC gasoline | |
| CN103240117B (en) | Gasoline desulfurization catalyst and preparation method thereof and gasoline desulfurization method | |
| CN103120929A (en) | Solid desulfuration adsorbent and preparation method and application thereof | |
| CN101619231A (en) | Fuel oil adsorption desulfurization adsorbent and method for preparing same | |
| CN104028208B (en) | A kind of gasoline high selectivity desulfuration adsorbent and preparation method and application | |
| CN102527322A (en) | Method for preparing gasoline deeply desulfurized adsorbent and application of adsorbent | |
| CN104667861A (en) | Desulfurization adsorption agent used for gasoline and gasoline desulfurization method | |
| CN103920454A (en) | Composite copper-based desulfurizing agent for removing sulfur-containing repugnant substances at normal temperature and preparation method of composite copper-based desulfurizing agent | |
| CN108893138B (en) | Ag2O/SiO2-ZrO2Method for removing thiophene sulfides in fuel oil by using composite aerogel as adsorbent | |
| CN103666559B (en) | A kind of FCC gasoline ultra-deep desulfurization combined method | |
| CN109847730B (en) | Regeneration method of desulfurization adsorbent | |
| CN114345329A (en) | Application of normal-pressure ultra-deep desulfurization catalyst | |
| CN103933927B (en) | solid desulfurizing agent and preparation method thereof | |
| CN103028363A (en) | Gas desulfurization adsorbent and preparation method thereof as well as desulfurization method for sulphur-contained gas | |
| CN102899086B (en) | Dialkene removing and adsorption ultra-deep desulphurization combined method for full-fraction FCC gasoline | |
| CN104028217B (en) | A kind of gasoline high-selectivity adsorption desulfurizing agent and preparation method and application | |
| CN103007873A (en) | Adsorbent for gasoline desulfurization and preparation method as well as application thereof | |
| CN103769038B (en) | A kind of gas sweetening adsorbent, its preparation method and application | |
| CN104028216A (en) | High-selectivity gasoline adsorption desulfurizer as well as preparation method and application thereof | |
| CN116983991B (en) | Preparation method and application of reduced copper/nickel-based adsorption catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |