CN108939801A - A kind of desulfurizing agent preparation method - Google Patents
A kind of desulfurizing agent preparation method Download PDFInfo
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- CN108939801A CN108939801A CN201810918650.2A CN201810918650A CN108939801A CN 108939801 A CN108939801 A CN 108939801A CN 201810918650 A CN201810918650 A CN 201810918650A CN 108939801 A CN108939801 A CN 108939801A
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- desulfurizing agent
- temperature
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- kettle
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of desulfurizing agent preparation methods, comprising: step 1, a certain proportion of niacin and phthalic anhydride is heated in a kettle, blowing obtains material A；Step 2, lime is added in material A, adjusts PH, adds ammonium hydrogen carbonate and adjusts PH, obtain material B；Step 3, after filtering out the residue in material B, moisture is removed in heating in a kettle, obtains material C；Step 4, a certain proportion of urea, cobalt chloride are added in reaction kettle, sufficiently blowing after reaction, obtain material D；Step 5, a certain proportion of anhydrous sodium sulfate, soda ash are added in material D, is taken out after drying and crushes, packs, obtain target desulfurizing agent.Preparation method of the present invention is simple, and the desulfurizing agent desulfurization effect of production is good, and compared with existing desulfurizing agent, the desulfurization of equivalent desulfurizing agent is effectively reduced the use of desulfurizing agent, reduces cost, while ensureing desulfurization effect, reduce disposal of pollutants, economize on resources than great.
Description
Technical field
The invention belongs to coal gas desulfurization technical fields, specifically, being related to a kind of desulfurizing agent preparation method.
Background technique
Coal in China annual consumption is up to 1,000,000,000 tons or more, and the SO2 annual emissions that fire coal is discharged are more than 20,000 tons, simultaneously
The smelting process of various metallic ores can also generate a large amount of SO2.With the increase of SO2 discharge amount, China's acid rain development speed
Surprising, the aggravation of Acid Rain Pollution causes great danger to the ecosystem, building material, agricultural and human health etc.
Evil.Therefore, the control for increasing SO2 is more and more important and urgent.
Coke oven gas desulfurization technology as a kind of emerging coal gas desulfurization technology, have desulfuration efficiency is high, absorbent can be with
It recycles, generate the advantages that secondary pollution, more and more people participate in the industry of coal gas desulfurization, but current city
Coke oven gas desulfurization agent on field, universal production technology is complicated, and long flow path is at high cost.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that a kind of desulfurizing agent preparation method is overcome the deficiencies of the prior art and provide,
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of desulfurizing agent preparation method, comprising the following steps:
Step 1, a certain proportion of niacin and phthalic anhydride are heated in a kettle, when being heated to after the first temperature one section of constant temperature
Between, it is again heated to second temperature constant temperature for a period of time, blowing obtains material A；
Step 2, lime is added in material A, adjusts PH to 4, adds ammonium hydrogen carbonate and adjusts PH to 9, obtain material B；
Step 3, after filtering out the residue in material B, moisture is removed in heating in a kettle, obtains material C；
Step 4, a certain proportion of urea, cobalt chloride are added in reaction kettle, is warming up to 200 DEG C, sufficiently blowing after reaction,
Obtain material D；
Step 5, a certain proportion of anhydrous sodium sulfate, soda ash are added in material D, then is warming up to 240 DEG C of bakings with drying box
It is dry, it is taken out after drying and crushes, packs, obtain target desulfurizing agent.
Further, first temperature is 240 DEG C in the step 1, and the constant temperature time of the first temperature is 12h, second temperature
It is 300 DEG C, the constant temperature time of second temperature is 4h.
Further, the weight ratio of niacin and phthalic anhydride is 1:4 in the step 1.
Further, the weight ratio of material C and urea, cobalt chloride is 10:16:5 in the step 4.
Further, the weight ratio of material D and anhydrous sodium sulfate, soda ash is 210:5:50 in the step 5.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
Preparation method of the present invention is simple, and the desulfurizing agent desulfurization effect of production is good, compared with existing desulfurizing agent, equivalent desulfurizing agent
Desulfurization than great, the use of desulfurizing agent is effectively reduced, reduces cost, while ensureing desulfurization effect, reduces disposal of pollutants, saves
Resource.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below to the technical side in embodiment
Case is clearly and completely described, and the following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..If not
It refers in particular to, all parts, percentage are unit of weight.
Embodiment 1
A kind of preparation method of desulfurizing agent,
Step 1, a certain proportion of niacin and phthalic anhydride are heated in a kettle, when being heated to after the first temperature one section of constant temperature
Between, it is again heated to second temperature constant temperature for a period of time, blowing obtains material A.Niacin and phthalic anhydride press 1:4 weight ratio, investment reaction
In kettle, then 12 hours of constant temperature after reaction kettle heating rises to 240 degree are warmed to 300 degree, blowing after constant temperature is kept for 4 hours again.
Step 2, lime is added in material A, adjusts PH to 4, adds ammonium hydrogen carbonate and adjusts PH to 9, obtain material B.With
Lime adjusts pH value and is adjusted to 4, is then adjusted to 9 with ammonium hydrogen carbonate again, and the input amount of lime and ammonium hydrogen carbonate is true according to real-time pH value
Fixed, lime and ammonium hydrogen carbonate are stirring while adding uniform when putting into.
Step 3, after filtering out the residue in material B, moisture is removed in heating in a kettle, obtains material C.
Step 4, a certain proportion of urea, cobalt chloride are added in reaction kettle, is warming up to 200 DEG C, sufficiently blowing after reaction,
Obtain material D.Material C double centner, 160 kilograms of urea, 50 kilograms of cobalt chloride are thrown in reaction kettle, are then warmed to 200 degree,
It is uniform until reacting, then blowing.
Step 5, a certain proportion of anhydrous sodium sulfate, soda ash are added in material D, then is warming up to 240 DEG C of bakings with drying box
It is dry, it is taken out after drying and crushes, packs, obtain target desulfurizing agent.Add 5 kilograms of anhydrous sodium sulfate, soda ash 50,000 before into drying box
Gram, 240 degree are warming up in drying box thereafter, is taken out after drying, is crushed, packs to get target desulfurizing agent.
Preparation method of the present invention is simple, and the desulfurizing agent desulfurization effect of production is good, compared with existing desulfurizing agent, equivalent desulfurizing agent
Desulfurization than great, the use of desulfurizing agent is effectively reduced, reduces cost, while ensureing desulfurization effect, reduces disposal of pollutants, saves
Resource.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (5)
1. a kind of desulfurizing agent preparation method, which comprises the following steps:
Step 1, a certain proportion of niacin and phthalic anhydride are heated in a kettle, after being heated to the first temperature constant temperature for a period of time,
It is again heated to second temperature constant temperature for a period of time, blowing obtains material A；
Step 2, lime is added in material A, adjusts PH to 4, adds ammonium hydrogen carbonate and adjusts PH to 9, obtain material B；
Step 3, after filtering out the residue in material B, moisture is removed in heating in a kettle, obtains material C；
Step 4, a certain proportion of urea, cobalt chloride are added in reaction kettle, is warming up to 200 DEG C, sufficiently blowing after reaction, obtains
Material D；
Step 5, a certain proportion of anhydrous sodium sulfate, soda ash are added in material D, then is warming up to 240 DEG C of drying with drying box, dries
It is taken out after dry and crushes, packs, obtain target desulfurizing agent.
2. a kind of desulfurizing agent preparation method according to claim 1, which is characterized in that first temperature is in the step 1
240 DEG C, the constant temperature time of the first temperature is 12h, and second temperature is 300 DEG C, and the constant temperature time of second temperature is 4h.
3. a kind of desulfurizing agent preparation method according to claim 1, which is characterized in that niacin and phthalic anhydride in the step 1
Weight ratio be 1:4.
4. a kind of desulfurizing agent preparation method according to claim 1, which is characterized in that material C and urine in the step 4
Plain, cobalt chloride weight ratio is 10:16:5.
5. a kind of desulfurizing agent preparation method according to claim 1, which is characterized in that in the step 5 material D with it is anhydrous
Sodium sulphate, soda ash weight ratio be 210:5:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918650.2A CN108939801A (en) | 2018-08-13 | 2018-08-13 | A kind of desulfurizing agent preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918650.2A CN108939801A (en) | 2018-08-13 | 2018-08-13 | A kind of desulfurizing agent preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108939801A true CN108939801A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810918650.2A Pending CN108939801A (en) | 2018-08-13 | 2018-08-13 | A kind of desulfurizing agent preparation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840470A (en) * | 2005-03-09 | 2006-10-04 | 法国石油公司 | Improved process for treating gases containing hydrogen sulfur and sulfur dioxide |
| CN101352641A (en) * | 2007-07-25 | 2009-01-28 | 上海智方环保工程有限公司 | Technique for reducing alkali loss in flue gas desulfurization by sodium-calcium dual-alkali scrubbing method |
| JP5269321B2 (en) * | 2007-01-11 | 2013-08-21 | 株式会社Ａｄｅｋａ | Desulfurization agent for ultra-deep oxidative desulfurization and oxidative desulfurization method using the same |
| CN103721556A (en) * | 2014-01-20 | 2014-04-16 | 高同柱 | Desulfurization, denitrification and demercuration additive as well as preparation method thereof |
| CN105032487A (en) * | 2015-06-11 | 2015-11-11 | 吉林市环喜科技有限公司 | Preparation method of PDS desulfurization catalyst |
-
2018
- 2018-08-13 CN CN201810918650.2A patent/CN108939801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840470A (en) * | 2005-03-09 | 2006-10-04 | 法国石油公司 | Improved process for treating gases containing hydrogen sulfur and sulfur dioxide |
| JP5269321B2 (en) * | 2007-01-11 | 2013-08-21 | 株式会社Ａｄｅｋａ | Desulfurization agent for ultra-deep oxidative desulfurization and oxidative desulfurization method using the same |
| CN101352641A (en) * | 2007-07-25 | 2009-01-28 | 上海智方环保工程有限公司 | Technique for reducing alkali loss in flue gas desulfurization by sodium-calcium dual-alkali scrubbing method |
| CN103721556A (en) * | 2014-01-20 | 2014-04-16 | 高同柱 | Desulfurization, denitrification and demercuration additive as well as preparation method thereof |
| CN105032487A (en) * | 2015-06-11 | 2015-11-11 | 吉林市环喜科技有限公司 | Preparation method of PDS desulfurization catalyst |
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Application publication date: 20181207 |