CN102512941A - Preparation method of desulfurizer - Google Patents
Preparation method of desulfurizer Download PDFInfo
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- CN102512941A CN102512941A CN 201110405477 CN201110405477A CN102512941A CN 102512941 A CN102512941 A CN 102512941A CN 201110405477 CN201110405477 CN 201110405477 CN 201110405477 A CN201110405477 A CN 201110405477A CN 102512941 A CN102512941 A CN 102512941A
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Abstract
The invention relates to a preparation method of a desulfurizer. The method comprises steps of: adding active carbon into attapulgite powder, wherein addition of the active carbon accounts for 10% of the mass of the attapulgite; mixing well the active carbon and the attapulgite; adding a proper amount of water; and stirring into a pasty state; moulding and drying in a forming machine; and sintering under protective atmosphere to obtain a carrier; placing the obtained carrier in a Cu(NO3)2 solution; carrying out isopyknic dipping and drying for 4 h; sintering under protective atmosphere for 4 h to obtain the desulfurizer. The desulfurizer of the present invention has high desulfurization rate and low production cost, and is easy for regeneration.
Description
Technical field
The present invention relates to a kind of preparation and application and renovation process of desulfurizing agent, be specifically related to a kind of preparation and application and renovation process of fume desulfurizing agent.
Background technology
In the energy system of China, coal accounts for 75% of whole energy system, is far longer than oil, natural gas and waterpower.90% of whole nation SO2 discharge capacity is come spontaneous combustion coal.Therefore, the discharge capacity of minimizing SO2 becomes the task of top priority.
Present sulfur method roughly is divided three classes: one type is wet method, promptly adopts liquid-absorbant such as washings such as water or aqueous slkali; One type is semidry method, utilizes the moisture in the obvious heat of smoke evaporation lime slurry, and lime and SO2 reaction simultaneously generates the powdered calcium sulfite, has the characteristics of wet method and dry method concurrently; Another kind of is dry method, with powdery or granular absorbent, adsorbent or catalyst to remove SO2.Wet desulphurization technology comparative maturity has had the commercial application of decades historical, and freight charges are high, water consumption is big, accessory substance is prone to cause secondary pollution but exist; Dry method and semidry method technology have that cost is low, technology is simple, easy to maintenance, advantage such as the desulfuration efficiency scope is wide, reliable, adaptability is strong, get more and more people's extensive concerning, but semidry method fundamentally do not solve the reproducible utilization problem of resource; Dry desulfurization process majority belongs to gas-solid reaction; Speed is relatively low, and flue gas reaction time in reactor is long, and the flue gas after the desulfurization is not lowered the temperature; Do not need heating; Can satisfy the requirement of discharging diffusion, in addition, desulfurization by dry method has also that no fouling, dewfall, obstruction, reliability are high, secondary pollution advantage such as less.
Patent ZL99104245.X discloses and has a kind ofly prepared the method for desulfurizing agent with active carbon or NACF as carrier loaded cupric oxide, but because material with carbon element intensity is low, abrasion are high, and it is few to recycle number of times, production cost is high.
Summary of the invention
The objective of the invention is to: preparation and application and renovation process that a kind of desulfurizing agent is provided; The desulfurizing agent that adopts this preparation method to make is used for flue gas desulfurization; Use under suitable industry coal-boiler flue gas exhaust gas temperature, the high-speed condition; Have high desulfurization activity, can solve that existing fume desulfurizing agent desulfurization degree is low, cycle-index is few, problems such as investment and operating cost height.
For achieving the above object, the present invention provides a kind of preparation method of desulfurizing agent, it is characterized in that: this preparation method may further comprise the steps:
1) preparation of desulfurizing agent carrier; In particle diameter is the attapulgite powder of 40um, add active carbon, the addition of active carbon is 10% of an attapulgite quality, mixes the back and adds an amount of water and stir into pasty state; Put into the make-up machine moulding; In 150 ℃ of dry 4-7 hours, under protective atmosphere,, make carrier again in 400-600 ℃ of sintering 3-5 hour; And
2) carrier that step 1) is obtained is put into the Cu (NO of 1-2mol/L
3)
2In the solution, adopt incipient impregnation after 3-5 hour, 65 ℃ dry 4 hours down, then 100 ℃ of dryings 6 hours, again under protective atmosphere in 300-500 ℃ of sintering 4 hours, make desulfurizing agent.
The invention has the advantages that: desulfurization degree is high, can reach 80-90%; This desulfurizing agent can directly utilize the temperature of flue gas to carry out desulphurization reaction, and cost is low; Desulfurizing agent is easy to regeneration, can use repeatedly, can not cause secondary pollution.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with specific embodiment.
Embodiment 1:
, particle diameter adds active carbon in being the attapulgite powder of 40um; The addition of active carbon is 10% of an attapulgite quality; Mix the back and add an amount of water and stir into pasty state, put into the make-up machine moulding, again in 150 ℃ of dryings 4 hours; Under protective atmosphere,, make carrier in 400 ℃ of sintering 5 hours.
The carrier that obtains is put into the Cu (NO of 1mol/L
3)
2In the solution, adopt incipient impregnation after 5 hours, 65 ℃ dry 4 hours down, then 100 ℃ of dryings 6 hours, again under protective atmosphere in 500 ℃ of sintering 4 hours, make desulfurizing agent.
The desulfurizing agent that makes is packed in fixed bed or the moving-burden bed reactor, and reaction temperature is controlled at 100 ℃, feeds the normal pressure flue gas, and desulfurization degree is 85%, saturated Sulfur capacity 3.0g/100g.
With the desulfurizing agent of inactivation pack into fixed bed or moving bed reflecting device, under ammonia atmosphere, to regenerate, the control temperature is 200 ℃.
Embodiment 2:
, particle diameter adds active carbon in being the attapulgite powder of 40um; The addition of active carbon is 10% of an attapulgite quality; Mix the back and add an amount of water and stir into pasty state, put into the make-up machine moulding, again in 150 ℃ of dryings 6 hours; Under protective atmosphere,, make carrier in 500 ℃ of sintering 4 hours.
The carrier that obtains is put into the Cu (NO of 1.5mol/L
3)
2In the solution, adopt incipient impregnation after 4 hours, 65 ℃ dry 4 hours down, then 100 ℃ of dryings 6 hours, again under protective atmosphere in 400 ℃ of sintering 4 hours, make desulfurizing agent.
The desulfurizing agent that makes is packed in fixed bed or the moving-burden bed reactor, and reaction temperature is controlled at 200 ℃, feeds the normal pressure flue gas, and desulfurization degree is 88%, saturated Sulfur capacity 4.0g/100g.
With the desulfurizing agent of inactivation pack into fixed bed or moving bed reflecting device, under ammonia atmosphere, to regenerate, the control temperature is 300 ℃.
Embodiment 3:
, particle diameter adds active carbon in being the attapulgite powder of 40um; The addition of active carbon is 10% of an attapulgite quality; Mix the back and add an amount of water and stir into pasty state, put into the make-up machine moulding, again in 150 ℃ of dryings 7 hours; Under protective atmosphere,, make carrier in 600 ℃ of sintering 3 hours.
The carrier that obtains is put into the Cu (NO of 2mol/L
3)
2In the solution, adopt incipient impregnation after 3 hours, 65 ℃ dry 4 hours down, then 100 ℃ of dryings 6 hours, again under protective atmosphere in 500 ℃ of sintering 4 hours, make desulfurizing agent.
The desulfurizing agent that makes is packed in fixed bed or the moving-burden bed reactor, and reaction temperature is controlled at 280 ℃, feeds the normal pressure flue gas, and desulfurization degree is 90%, saturated Sulfur capacity 6.0g/100g.With the desulfurizing agent of inactivation pack into fixed bed or moving bed reflecting device, under ammonia atmosphere, to regenerate, the control temperature is 400 ℃.
Claims (1)
1. the preparation method of a desulfurizing agent, it is characterized in that: this preparation method may further comprise the steps:
1) preparation of desulfurizing agent carrier; In particle diameter is the attapulgite powder of 40um, add active carbon, the addition of active carbon is 10% of an attapulgite quality, mixes the back and adds an amount of water and stir into pasty state; Put into the make-up machine moulding; In 150 ℃ of dry 4-7 hours, under protective atmosphere,, make carrier again in 400-600 ℃ of sintering 3-5 hour; And
2) carrier that step 1) is obtained is put into the Cu (NO of 1-2mol/L
3)
2In the solution, adopt incipient impregnation after 3-5 hour, 65 ℃ dry 4 hours down, then 100 ℃ of dryings 6 hours, again under protective atmosphere in 300-500 ℃ of sintering 4 hours, make desulfurizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110405477 CN102512941A (en) | 2011-12-08 | 2011-12-08 | Preparation method of desulfurizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110405477 CN102512941A (en) | 2011-12-08 | 2011-12-08 | Preparation method of desulfurizer |
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| CN102512941A true CN102512941A (en) | 2012-06-27 |
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| CN 201110405477 Pending CN102512941A (en) | 2011-12-08 | 2011-12-08 | Preparation method of desulfurizer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744095A (en) * | 2012-07-11 | 2012-10-24 | 淮阴工学院 | Preparation method of catalyst with zeolite-activated carbon-attapulgite composite carrier for flue gas denitrification |
| CN105617986A (en) * | 2014-12-01 | 2016-06-01 | 中国石化扬子石油化工有限公司 | Preparation method for compound active carbon hydrogen sulfide remover |
| CN105903324A (en) * | 2016-05-18 | 2016-08-31 | 天津普瑞特净化技术有限公司 | Copper oxide loaded active carbon desulfurizing agent and preparation process thereof |
| CN108203591A (en) * | 2018-02-05 | 2018-06-26 | 山东星火科学技术研究院 | A kind of petrol and diesel oil continuous desulfurization method |
| CN109647176A (en) * | 2019-01-21 | 2019-04-19 | 北京贞吉环保科技有限公司 | A kind of desulfurizing agent and preparation method thereof |
-
2011
- 2011-12-08 CN CN 201110405477 patent/CN102512941A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744095A (en) * | 2012-07-11 | 2012-10-24 | 淮阴工学院 | Preparation method of catalyst with zeolite-activated carbon-attapulgite composite carrier for flue gas denitrification |
| CN105617986A (en) * | 2014-12-01 | 2016-06-01 | 中国石化扬子石油化工有限公司 | Preparation method for compound active carbon hydrogen sulfide remover |
| CN105617986B (en) * | 2014-12-01 | 2019-04-23 | 中国石化扬子石油化工有限公司 | A kind of preparation method of composite activated carbon hydrogen sulfide remover |
| CN105903324A (en) * | 2016-05-18 | 2016-08-31 | 天津普瑞特净化技术有限公司 | Copper oxide loaded active carbon desulfurizing agent and preparation process thereof |
| CN108203591A (en) * | 2018-02-05 | 2018-06-26 | 山东星火科学技术研究院 | A kind of petrol and diesel oil continuous desulfurization method |
| CN109647176A (en) * | 2019-01-21 | 2019-04-19 | 北京贞吉环保科技有限公司 | A kind of desulfurizing agent and preparation method thereof |
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Application publication date: 20120627 |