CN1361230A - Liquid phase normal temperature aviation kerosene refining desulfurizer and its prepn - Google Patents
Liquid phase normal temperature aviation kerosene refining desulfurizer and its prepn Download PDFInfo
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- CN1361230A CN1361230A CN 02112509 CN02112509A CN1361230A CN 1361230 A CN1361230 A CN 1361230A CN 02112509 CN02112509 CN 02112509 CN 02112509 A CN02112509 A CN 02112509A CN 1361230 A CN1361230 A CN 1361230A
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Abstract
The present invention relates to the field of petrochemical technology and the liquid phase normal temperature aviation kerosene refining desulfurizer is compounded with ZnO as main material and cocatalyst, and has a use temperature of 0-200 deg.c and use absolute pressure of 0.1-6.0 MPa. Compared with available similar ones, the desulfurizer has 10-30% raised activity and 10 % raised sulfur tolerance and has obvious effect on the silver plate corrosion index of aviation kerosene.
Description
Technical field: the invention belongs to petrochemical industry, be specifically related to a kind of novel liquid phase normal temperature aviation kerosene refining desulfurizer and preparation method.
Background technology: Zinc oxide desulfurizer is widely used in the smart desulfurization of petrochemical materials gas, industrial gas.Having characteristics such as desulfurization precision height, Sulfur capacity be big, is more sophisticated product.At present the commodity Zinc oxide desulfurizer mainly contains three kinds of high temperature and low temperature and room temperatures, and the former use temperature is 350～400 ℃, and middle person's use temperature is 180～250 ℃, and the latter is in room temperature range.Because preceding two types sweetening agent all needs to use under the certain temperature, needs thermal source, and consumes certain energy; Sweetening agent also can play certain katalysis simultaneously, and some side reactions take place.In order to overcome above-mentioned shortcoming, carried out the development of normal temp zinc oxide desulfuriging agent in recent years in the world, European patent 279116; 207645; 230146 and Chinese patent 93111222.2 a kind of normal temp zinc oxide desulfuriging agent is disclosed, its use temperature is low, has certain low temperature active, but it is relatively poor that its weak point is an intensity, point is pressed and only is 28N/, and low temperature active is on the low side, and less and the life-span is shorter to the silver slice corrosion index contribution up to standard of aviation kerosene, use cost is higher.
Summary of the invention: the novel liquid phase normal temperature aviation kerosene refining desulfurizer that the present invention seeks to develop a kind of higher low temperature active and higher-strength.
The novel liquid phase normal temperature aviation kerosene refining desulfurizer of the present invention's development contains ZnO, TiO
2, NiO, Al
2O
3Component, active ingredient ZnO, its content are 62～95% (wt), promotor mainly is TiO
2, NiO, Al
2O
3Mixture, TiO
2Content is 0.5～5.0 (wt), and NiO content is 0.1～3.0 (wt), Al
2O
3Content is 1.5～15.0 (wt).
Zinc oxide in the sweetening agent can be that the form of the one or more kinds of mixtures in zinc oxide, zinc hydroxide, zinc carbonate, zinc subcarbonate or the water-soluble zinc compound enters, water-soluble zinc compound can be a nitrate, acetate etc., wherein add best with ZnO and zinc subcarbonate form, zinc oxide accounts for 10～50%, and zinc subcarbonate accounts for 90～50% (wt).In the present invention, the mixture for preparing zinc subcarbonate and zinc oxide with a kind of coprecipitation method.It is that in this mixture of neutralization, stir on the limit, thereby generate a kind of slurry in 40-95 ℃ the pure water that the aqueous solution that is dissolved with a kind of zn cpds aqueous solution and a kind of yellow soda ash or sodium hydroxide dropwise is added to temperature simultaneously with constant speed.Wash the precipitation that is generated then, 110-120 ℃ of drying, then, in about 280-450 ℃ roasting.These conditions can be selected arbitrarily and there is no particular limitation according to the kind of used zn cpds.The zinc subcarbonate of gained and zinc oxide mixture need uniform mixing each other.
For intensity and the activity that improves sweetening agent, after mixing, above-mentioned raw materials added a kind of peptizing agent.This solvent can be a kind of mineral acid, as nitric acid, also can be a kind of organic acid or two or more mixtures, as oxalic acid, citric acid etc.Its add-on is 1～10% (wt) of siccative.Extrusion, drying, roasting make the finished product sweetening agent according to a conventional method then, and it consists of ZnO 72～95% (wt), TiO
20.5～5.0 (wt), NiO0.1～3.0 (wt), Al
2O
3Content is 1.5～15.0 (wt).
Shatter strength 〉=the 40N/cm of finished product sweetening agent of the present invention, specific surface are 50～100m
2/ g, specific pore volume＞0.2ml/g.
This sweetening agent mainly is applicable to the smart desulfurization of aviation kerosene normal temperature liquid phase, and its use temperature can be in 0～50 ℃ of scope, applying pressure 0.1～6.0MPa (absolute pressure).
The effect of invention,
Normal temperature liquid phase desulfurizing agent of the present invention and external like product Britain product compare experiment,
Experiment condition: doctor solution consumption 0.8ml
Desulfurization temperature: 20 ℃
Pressure: normal pressure
Raw material aviation kerosene: inlet H
2S 10 μ gg
-1Outlet H
2S＜0.05 μ gg
-1, and silver slice corrosion is up to standard
The effects 3,6,9,12h
-1Desulfurization situation under four air speed conditions, the result is as shown in table 1: the silver slice corrosion time length up to standard of table 1, two kinds of different air speeds of sweetening agent
| The air speed silver slice corrosion time length up to standard | ?3h ～1(m/m) | ??6h ～1??(m/m) | ??9h ～1??(m/m) | ??12h ～1??(m/m) |
| The present invention navigate the jet sweetening agent (hour) | ????160 | ????93 | ????52 | ????31 |
| Britain's product (hour) | ????90 | ????42 | ????23 | ????10 |
Experiment has also been investigated two kinds of sweetening agents at 20 ℃, 90 ℃ desulfurization performances, and wherein air speed is 9h
-1, sulphur content is 10 μ gg in the raw material boat coal
-1(m/m).The result is as shown in table 2.
The silver slice corrosion time length up to standard under table 2, the two kinds of sweetening agent differing tempss
| The silver slice corrosion time length up to standard | ????20℃ | ????90℃ |
| Sweetening agent of the present invention | ????52 | ????88 |
| Britain's product | ????23 | ????31 |
From table 1, table 2 the Sulfur capacity height and the silver slice corrosion longer duration up to standard of sweetening agent of the present invention as can be seen, promptly active high.
Desulfurizer activity of the present invention improves 10～30% than prior art, and Sulfur capacity improves more than 10%, and intensity is also than prior art height, has an obvious effect to the silver slice corrosion index of aviation kerosene is up to standard.
Embodiment: the present invention is described in detail below in conjunction with embodiment.
Embodiment 1
80 parts of zinc subcarbonates, 20 parts in zinc oxide, 3 parts of titanium oxide, 1 part of nickel oxide, 12 parts in aluminum oxide are done and are mixed that the back adds that 2 parts of water are mediated in right amount, behind the extruded moulding, drying, roasting promptly get liquid phase normal temperature aviation kerosene refining desulfurizer.
Embodiment 2
90 parts of zinc subcarbonates, 10 parts in zinc oxide, 2 parts of titanium oxide, 1 part of nickel oxide, 12 parts in aluminum oxide are done and are mixed the back and add 5 parts of citric acids, and water is mediated in right amount, behind the extruded moulding, drying, the roasting kerosene liquid phase normal temperature desulfurizing agent of promptly having leisure.
Embodiment 3
70 parts of zinc subcarbonates, 30 parts in zinc oxide, 4 parts of titanium oxide, 3 parts of nickel oxide, 11 parts in aluminum oxide add 2 parts of oxalic acids after doing and mixing, 4 parts of citric acids, water is mediated in right amount, behind the extruded moulding, drying, the roasting kerosene liquid phase normal temperature desulfurizing agent of promptly having leisure.
Claims (5)
1, a kind of liquid phase normal temperature aviation kerosene refining desulfurizer and preparation method is characterized in that it contains ZnO, TiO
2, NiO, Al
2O
3Component, active ingredient ZnO, its content are 62～95% (wt), promotor is TiO
2, NiO, Al
2O
3Mixture, TiO
2Content is 0.5～5.0% (wt), and NiO content is 0.1～3.0% (wt), Al
2O
3Content is 1.5～15.0% (wt).
2, a kind of preparation method of desulfurizing agent as claimed in claim 1, it is characterized in that the zinc oxide in the sweetening agent is with zinc oxide, zinc hydroxide, zinc carbonate, the form of a kind of or two or more mixtures in zinc subcarbonate or the water-soluble zinc compound enters, wherein add best with ZnO and zinc subcarbonate form, zinc oxide accounts for 10～50%, zinc subcarbonate accounts for 90～50% (wt), mixture with each zinc subcarbonate of a kind of coprecipitation method system and zinc oxide, it is in 40-95 ℃ the pure water that the aqueous solution that is dissolved with a kind of zn cpds aqueous solution and a kind of yellow soda ash or sodium hydroxide dropwise is added to temperature simultaneously with constant speed, in this mixture of neutralization, stir on the limit, generate a kind of slurry, the precipitation that washing is generated, 110-120 ℃ of drying, then, 280-450 ℃ of roasting, add other raw materials by proportioning then and mix, extrusion, dry, roasting makes the finished product sweetening agent.
3, a kind of desulfurizing agent as claimed in claim 1 is characterized in that it contains ZnO, TiO
2, NiO, Al
2O
3Component and peptizing agent, active ingredient ZnO, its content are 72～95% (wt), promotor is TiO
2, NiO, Al
2O
3Mixture, TiO
2Content is 0.5～5.0% (wt), and NiO content is 0.1～3.0% (wt), Al
2O
3Content is 1.5～15.0% (wt), and peptizing agent content is 1～10% (wt).
4, a kind of as claim 1 or 3 described desulfurizing agents, it is characterized in that its shatter strength 〉=40N/cm, specific surface is 50～100m
2/ g, specific pore volume＞0.2ml/g.
5, a kind of as claim 1 or 3 described desulfurizing agents, it is characterized in that it mainly is applicable to the smart desulfurization of aviation kerosene normal temperature liquid phase, its use temperature can be in 0～50 ℃ of scope, applying pressure 0.1～6.0MPa (absolute pressure).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112509 CN1361230A (en) | 2002-01-08 | 2002-01-08 | Liquid phase normal temperature aviation kerosene refining desulfurizer and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112509 CN1361230A (en) | 2002-01-08 | 2002-01-08 | Liquid phase normal temperature aviation kerosene refining desulfurizer and its prepn |
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| Publication Number | Publication Date |
|---|---|
| CN1361230A true CN1361230A (en) | 2002-07-31 |
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ID=4742064
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|---|---|---|---|
| CN 02112509 Pending CN1361230A (en) | 2002-01-08 | 2002-01-08 | Liquid phase normal temperature aviation kerosene refining desulfurizer and its prepn |
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|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212369A (en) * | 2012-01-19 | 2013-07-24 | 北京三聚环保新材料股份有限公司 | High-strength ferric hydroxide desulfurizer for normal temperature desulfurization, and preparation method thereof |
| CN104803675A (en) * | 2009-01-12 | 2015-07-29 | Ifp新能源公司 | Preparation of a solid based on zinc oxide for use in purifying a gas or a liquid |
| CN114272918A (en) * | 2021-12-31 | 2022-04-05 | 辽宁玖号科技有限公司 | Preparation method of zinc oxide desulfurizer |
-
2002
- 2002-01-08 CN CN 02112509 patent/CN1361230A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803675A (en) * | 2009-01-12 | 2015-07-29 | Ifp新能源公司 | Preparation of a solid based on zinc oxide for use in purifying a gas or a liquid |
| CN104803675B (en) * | 2009-01-12 | 2020-05-05 | Ifp 新能源公司 | Preparation of zinc oxide-based solids useful for purifying gases or liquids |
| CN103212369A (en) * | 2012-01-19 | 2013-07-24 | 北京三聚环保新材料股份有限公司 | High-strength ferric hydroxide desulfurizer for normal temperature desulfurization, and preparation method thereof |
| CN103212369B (en) * | 2012-01-19 | 2016-09-14 | 北京三聚环保新材料股份有限公司 | A kind of high-strength FeOOH desulfurizer of room temperature desulfurization and preparation method thereof |
| CN114272918A (en) * | 2021-12-31 | 2022-04-05 | 辽宁玖号科技有限公司 | Preparation method of zinc oxide desulfurizer |
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