CN102266797A - Method for impregnating special shaped catalyst carrier - Google Patents
Method for impregnating special shaped catalyst carrier Download PDFInfo
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- CN102266797A CN102266797A CN201110172248A CN201110172248A CN102266797A CN 102266797 A CN102266797 A CN 102266797A CN 201110172248 A CN201110172248 A CN 201110172248A CN 201110172248 A CN201110172248 A CN 201110172248A CN 102266797 A CN102266797 A CN 102266797A
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- catalyst
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- rotary drum
- shaped catalyst
- carrier
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Abstract
The invention provides a method for impregnating a special shaped catalyst carrier. The method comprises the following steps: 1) placing the special shaped catalyst carrier into a rotatable drum; 2) atomizing impregnation liquid into liquid drops by an atomizing nozzle, introducing the liquid drops into the rotatable drum in the step 1) at a flow of 3-4L/min, and continuously adding the liquid drops for 40-50 minutes so that the special shaped catalyst and the atomized impregnation liquid drops contact completely in the rotatable drum; and 3) after atomizing operation is finished, keeping the carrier in the rotatable drum for 10-15 minutes. The method provided by the invention is suitable for various special shaped catalyst carriers and is capable of keeping the contact of the liquid and the carrier at a moderate state, thereby reducing the cracks and surface flaws of the carrier.
Description
Technical field
The present invention relates to a kind of Preparation of catalysts method, be specifically related to a kind of dipping method of carrier of loaded catalyst.
Background technology
Current, the catalyst carrier dipping method mainly is an equi-volume impregnating.With outward appearance is that strip or special-shaped alumina support are placed in the rotating rotary drum, under the state that carrier stirs, spray into an amount of solution that contains active component, solution and carrier make active constituent loading arrive carrier surface and inside through fully contacting after a while.
This method is that the carrier impregnation of strip is suitable fully for outward appearance, but be that special-shaped carrier is inapplicable for outward appearance.The abnormity carrier has rerum naturas such as big pore volume and external surface area, directly with after solution contacts, solution infiltrates carrier inside rapidly, short time is emitted bigger heat, rapid expansion of gas in the carrier hole also discharged rapidly, cause carrier to burst or crackle appears in carrier surface, influence product yield and quality.
Summary of the invention
The objective of the invention is to: a kind of method that is used to flood special-shaped carrier is provided, makes solution be in the mitigation state, reduce cracking and face crack that carrier occurs with contacting of carrier.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of dipping method of special-shaped catalyst supporter is provided, may further comprise the steps:
1) the irregular shape catalyst carrier is placed in the rotating rotary drum;
2) with maceration extract after atomizer is atomized into drop, feed in the rotary drum in the step 1) with the flow of 3-4L/min, continue to feed 40～50min, irregular shape catalyst is fully contacted in the rotary drum of rotation with the maceration extract drop of atomizing;
3) after spraying finishes, make carrier in the rotary drum that rotates, stop 10～15min again.
Described special-shaped catalyst comprises the catalyst of non-regular shapes such as Raschig ring, elliposoidal catalyst or special-shaped sphere catalyst.
Step 2) described maceration extract preferably is atomized into average grain diameter less than 100 microns drop;
Step 2) described atomizer can be arranged on the jet pipe in the existing equipment, and the increase gateway is communicated with line on the centrifugal pump of existing equipment, by centrifugal pump solution is delivered to rotary drum, connection line by the centrifugal pump gateway is adjusted pump discharge pressure, so that atomize fully from the liquid of shower nozzle ejection.
The preferred 6 commentaries on classics/min of the rotating speed of the described rotary drum of step 3).
Dipping solution after the method atomizing of the present invention contacts the state that is in mitigation with carrier, the thermal discharge of moment reduces, and the gas in the carrier hole discharges slowly, directly contacts the situation that causes carrier to burst thereby reduce carrier with solution.
The present invention also provides the application of described dipping method in the dipping of special-shaped catalyst supporter.
Described special-shaped catalyst supporter comprises the catalyst of non-regular shapes such as Raschig ring, elliposoidal catalyst, special-shaped sphere catalyst.
Compared with prior art, the product yield of dipping method of the present invention can reach about 95%, and the product yield of prior art only is about 70%, and therefore dipping method of the present invention effect aspect the raising product yield is obvious.
The specific embodiment
Embodiment 1
A kind of dipping method of special-shaped catalyst supporter may further comprise the steps:
1) the elliposoidal catalyst carrier being placed rotating speed is in 6 rev/mins the rotary drum;
2) maceration extract is atomized into the drop of 80～100 micron grain sizes through atomizer after, feed in the rotary drum in the step 1) with the flow of 3-4L/min, continue to feed 40min, the elliposoidal catalyst is fully contacted in the rotary drum of rotation with the maceration extract drop of atomizing;
3) after spraying finishes, make carrier in the rotary drum that rotates, stop 10min again.
Embodiment 2
A kind of dipping method of special-shaped catalyst supporter may further comprise the steps:
1) the elliposoidal catalyst carrier being placed rotating speed is in 6 rev/mins the rotary drum;
2) maceration extract is atomized into the drop of 60-80 micron grain size through atomizer after, feed in the rotary drum in the step 1) with the flow of 3L/min, continue to feed 50min, the elliposoidal catalyst is fully contacted in the rotary drum of rotation with the maceration extract drop of atomizing;
3) after spraying finishes, make carrier in the rotary drum that rotates, stop 15min again.
Embodiment 3
A kind of dipping method of special-shaped catalyst supporter may further comprise the steps:
1) the elliposoidal catalyst carrier being placed rotating speed is in 6 rev/mins the rotary drum;
2) maceration extract is atomized into the drop of 50～80 micron grain sizes through atomizer after, feed in the rotary drum in the step 1) with the flow of 4L/min, continue to feed 50min, the elliposoidal catalyst is fully contacted in the rotary drum of rotation with the maceration extract drop of atomizing;
3) after spraying finishes, make carrier in the rotary drum that rotates, stop 15min again.
Claims (7)
1. the dipping method of a special-shaped catalyst supporter may further comprise the steps:
1) the irregular shape catalyst carrier is placed in the rotating rotary drum;
2) with maceration extract after atomizer is atomized into drop, feed in the rotary drum in the step 1) with the flow of 3-4L/min, continue to feed 40～50min, irregular shape catalyst is fully contacted in the rotary drum of rotation with the maceration extract drop of atomizing;
3) after spraying finishes, make carrier in the rotary drum that rotates, stop 10～15min again.
2. the dipping method of the described special-shaped catalyst supporter of claim 1, it is characterized in that: described special-shaped catalyst comprises Raschig ring, elliposoidal catalyst or special-shaped sphere catalyst.
3. the dipping method of the described special-shaped catalyst supporter of claim 1 is characterized in that: step 2) described drop average grain diameter is less than 100 microns.
4. the dipping method of the described special-shaped catalyst supporter of claim 1, it is characterized in that: step 2) described atomizer is arranged on the jet pipe in the existing equipment, and the increase gateway is communicated with line on the centrifugal pump of existing equipment, by centrifugal pump solution is delivered to rotary drum, connection line by the centrifugal pump gateway is adjusted pump discharge pressure, so that atomize fully from the liquid of shower nozzle ejection.
5. the dipping method of the described special-shaped catalyst supporter of claim 1, it is characterized in that: the rotating speed of the described rotary drum of step 3) is 6 commentaries on classics/min.
6. the application of the described method of claim 1 in the dipping of special-shaped catalyst supporter.
7. the described application of claim 6 is characterized in that: described special-shaped catalyst comprises Raschig ring, elliposoidal catalyst or special-shaped sphere catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172248A CN102266797A (en) | 2011-06-24 | 2011-06-24 | Method for impregnating special shaped catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172248A CN102266797A (en) | 2011-06-24 | 2011-06-24 | Method for impregnating special shaped catalyst carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102266797A true CN102266797A (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110172248A Pending CN102266797A (en) | 2011-06-24 | 2011-06-24 | Method for impregnating special shaped catalyst carrier |
Country Status (1)
| Country | Link |
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| CN (1) | CN102266797A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125748A (en) * | 2013-03-21 | 2013-06-05 | 任宇齐 | Method for preparing feed-grade sodium selenite coated diluting agent |
| CN103949190A (en) * | 2014-04-11 | 2014-07-30 | 浙江通源材料科技有限公司 | Industrial preparation apparatus for noble metal catalysts |
| CN108855057A (en) * | 2017-05-16 | 2018-11-23 | 中国石油化工股份有限公司 | Shell profile catalyst and preparation method thereof and Fischer-Tropsch synthesis method |
| CN109562369A (en) * | 2016-05-30 | 2019-04-02 | Ifp 新能源公司 | The method for preparing selective hydrocatalyst |
Citations (1)
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| CN85201772U (en) * | 1985-04-29 | 1986-03-05 | 化工部西南化工研究院 | Odd-shaped hydrocarbon gas steam reforming catalysts |
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2011
- 2011-06-24 CN CN201110172248A patent/CN102266797A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201772U (en) * | 1985-04-29 | 1986-03-05 | 化工部西南化工研究院 | Odd-shaped hydrocarbon gas steam reforming catalysts |
Non-Patent Citations (3)
| Title |
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| 《工业催化剂制造与应用》 20080831 张云良 第三章 工业催化剂制造方法 第45页第1-2段 1-7 , * |
| 庄良炜等: "喷淋饱和浸渍工艺的研究与应用", 《石油化工》 * |
| 张铁珍等: "加氢精制催化剂活性影响因素的研究进展", 《工业催化》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125748A (en) * | 2013-03-21 | 2013-06-05 | 任宇齐 | Method for preparing feed-grade sodium selenite coated diluting agent |
| CN103125748B (en) * | 2013-03-21 | 2014-04-09 | 任宇齐 | Method for preparing feed-grade sodium selenite coated diluting agent |
| CN103949190A (en) * | 2014-04-11 | 2014-07-30 | 浙江通源材料科技有限公司 | Industrial preparation apparatus for noble metal catalysts |
| CN109562369A (en) * | 2016-05-30 | 2019-04-02 | Ifp 新能源公司 | The method for preparing selective hydrocatalyst |
| CN109562369B (en) * | 2016-05-30 | 2022-09-20 | Ifp 新能源公司 | Process for preparing selective hydrogenation catalysts |
| CN108855057A (en) * | 2017-05-16 | 2018-11-23 | 中国石油化工股份有限公司 | Shell profile catalyst and preparation method thereof and Fischer-Tropsch synthesis method |
| CN108855057B (en) * | 2017-05-16 | 2021-01-08 | 中国石油化工股份有限公司 | Shell layer distribution type catalyst, preparation method thereof and Fischer-Tropsch synthesis method |
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Application publication date: 20111207 |