CN111744458A - Desulfurizing agent and preparation method thereof - Google Patents
Desulfurizing agent and preparation method thereof Download PDFInfo
- Publication number
- CN111744458A CN111744458A CN202010595152.6A CN202010595152A CN111744458A CN 111744458 A CN111744458 A CN 111744458A CN 202010595152 A CN202010595152 A CN 202010595152A CN 111744458 A CN111744458 A CN 111744458A
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- bamboo charcoal
- weathered coal
- desulfurizing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
-
- 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
- B01D2257/304—Hydrogen sulfide
-
- 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
- B01D2257/306—Organic sulfur compounds, e.g. mercaptans
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a desulfurizing agent, which comprises the following components in parts by mass: 15-20 parts of bamboo charcoal, 15-25 parts of weathered coal, 8-15 parts of sodium bicarbonate, 5-10 parts of sodium hydroxide, 5-10 parts of magnesium nitrate, 5-12 parts of activated carbon, 6-14 parts of ferric oxide, 6-15 parts of zinc oxide, 3-8 parts of ferrous sulfate and 10-15 parts of calcium hydroxide; a preparation method of a desulfurizing agent comprises the following steps: s1, adding bamboo charcoal and weathered coal into a carbonization furnace; s2, crushing the carbonized bamboo charcoal and weathered coal, and S3, mixing the crushed bamboo charcoal and weathered coal with activated carbon, sodium hydroxide, sodium bicarbonate, magnesium nitrate, ferric oxide, zinc oxide, ferrous sulfate and calcium hydroxide; s4, adding purified water into the powder prepared in the S3, and uniformly stirring to prepare slurry; s5, heating and grinding the slurry; s6, adjusting the pH value of the slurry; and S7, drying and pressing to form. The invention has the advantages that: comprehensive functions, wide application scenes, small limitation and good desulfurization performance.
Description
Technical Field
The invention relates to the technical field of a desulfurizing agent, in particular to a desulfurizing agent and a preparation method thereof.
Background
In industrial production, sulfides are produced in many cases, for example, in coal or petroleum and chemical raw materials produced therefrom, in waste water and waste gas discharged from industrial production. The sulfur compounds are mainly derived from sulfur species contained in the raw materials, which are reacted and converted into sulfur compounds in the industrial process, thereby being released. Sulfides, particularly hydrogen sulfide, sulfur dioxide and the like, often cause catalyst poisoning and inactivation in a production process, and wastewater and waste gas containing the sulfides are directly discharged, so that the environment is easily polluted, and human and livestock poisoning is caused.
The desulfurizer is a medicament for removing sulfides in raw materials, wastewater, waste gas or other materials. Since the reduction of the sulfide content is advantageous for industrial production and environmental protection, researchers have paid more attention to the development of the desulfurizing agent. The current desulfurizer varieties comprise solid alkali/liquid alkali desulfurizer, activated carbon desulfurizer, molecular sieve-supported metal desulfurizer, iron desulfurizer, manganese desulfurizer, multi-metal composite oxide desulfurizer and the like. Through years of research, although the types of the desulfurizer are more and more abundant and the desulfurization performance is greatly improved, the existing desulfurizer has larger use limitation and can only be used in a single industrial environment.
Disclosure of Invention
In order to solve the problems, the application provides the desulfurizer which has comprehensive functions, wide application scenes, small limitation and good desulfurization performance and the preparation method thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the desulfurizer comprises the following components in parts by mass: 15-20 parts of bamboo charcoal, 15-25 parts of weathered coal, 8-15 parts of sodium bicarbonate, 5-10 parts of sodium hydroxide, 5-10 parts of magnesium nitrate, 5-12 parts of activated carbon, 6-14 parts of ferric oxide, 6-15 parts of zinc oxide, 3-8 parts of ferrous sulfate and 10-15 parts of calcium hydroxide.
Further, the coating comprises the following components in parts by mass: 16-19 parts of bamboo charcoal, 17-22 parts of weathered coal, 10-13 parts of sodium bicarbonate, 6-8 parts of sodium hydroxide, 6-8 parts of magnesium nitrate, 7-11 parts of activated carbon, 8-12 parts of ferric oxide, 8-13 parts of zinc oxide, 4-7 parts of ferrous sulfate and 11-14 parts of calcium hydroxide.
Further, the coating comprises the following components in parts by mass: 18 parts of bamboo charcoal, 20 parts of weathered coal, 11 parts of sodium bicarbonate, 8 parts of sodium hydroxide, 6 parts of magnesium nitrate, 8 parts of activated carbon, 10 parts of ferric oxide, 12 parts of zinc oxide, 5 parts of ferrous sulfate and 12 parts of calcium hydroxide.
A preparation method of a desulfurizing agent comprises the following steps:
s1, adding the bamboo charcoal and the weathered coal into a carbonization furnace, and carbonizing at 600-800 ℃ for 2-3 hours;
s2, crushing the carbonized bamboo charcoal and weathered coal,
s3, mixing the crushed bamboo charcoal and weathered coal with active carbon, sodium hydroxide, sodium bicarbonate, magnesium nitrate, ferric oxide, zinc oxide, ferrous sulfate and calcium hydroxide;
s4, adding purified water into the powder prepared in the S3, and uniformly stirring to prepare slurry;
s5, heating and grinding the slurry, wherein the heating temperature is 80-100 ℃, and the grinding mesh number is 250-350 meshes;
s6, adjusting the pH value of the slurry to 7.8-8.5;
and S7, drying and pressing to form.
Further, the carbonization temperature in S1 is 750 degrees celsius, and the carbonization time is 3 hours.
Further, the heating temperature in S5 is 95 ℃, and the grinding mesh size is 300 meshes.
Further, the pH value of the slurry in the S7 is adjusted to be 8.2
Compared with the prior art, the invention has the advantages that: the bamboo charcoal and the weathered coal are carbonized at high temperature, so that the adsorption and ion exchange effects are realized, the antibacterial effect is realized, the consumption of the active carbon is saved, and the economic benefit and the environmental protection benefit are increased; rapid and complete desulfurization can be realized by using various alkaline compounds; the desulfurizer of the invention can adsorb SO in waste gas and waste water2、SO3、H2S, organic sulfur, normal butyl sulfur and the like, and has wide application and no secondary pollution.
Detailed Description
Example one
The desulfurizer comprises the following components in parts by mass: bamboo charcoal 17, weathered coal 22, sodium bicarbonate 11, sodium hydroxide 7, magnesium nitrate 8, activated carbon 8, ferric oxide 10, zinc oxide 12, ferrous sulfate 5 and calcium hydroxide 11.
A preparation method of a desulfurizing agent comprises the following steps:
s1, adding the bamboo charcoal and the weathered coal into a carbonization furnace, and carbonizing at 700 ℃ for 2 hours;
s2, crushing the carbonized bamboo charcoal and weathered coal,
s3, mixing the crushed bamboo charcoal and weathered coal with active carbon, sodium hydroxide, sodium bicarbonate, magnesium nitrate, ferric oxide, zinc oxide, ferrous sulfate and calcium hydroxide;
s4, adding purified water into the powder prepared in the S3, and uniformly stirring to prepare slurry;
s5, heating and grinding the slurry, wherein the heating temperature is 100 ℃, and the grinding mesh number is 350;
s6, adjusting the pH value of the slurry to be 8;
and S7, drying and pressing to form.
Example two
The desulfurizer is characterized by comprising the following components in parts by mass: 18 parts of bamboo charcoal, 20 parts of weathered coal, 11 parts of sodium bicarbonate, 8 parts of sodium hydroxide, 6 parts of magnesium nitrate, 8 parts of activated carbon, 10 parts of ferric oxide, 12 parts of zinc oxide, 5 parts of ferrous sulfate and 12 parts of calcium hydroxide.
The preparation method of the desulfurizing agent is characterized by comprising the following steps of:
s1, adding the bamboo charcoal and the weathered coal into a carbonization furnace, and carbonizing at 750 ℃ for 3 hours;
s2, crushing the carbonized bamboo charcoal and weathered coal,
s3, mixing the crushed bamboo charcoal and weathered coal with active carbon, sodium hydroxide, sodium bicarbonate, magnesium nitrate, ferric oxide, zinc oxide, ferrous sulfate and calcium hydroxide;
s4, adding purified water into the powder prepared in the S3, and uniformly stirring to prepare slurry;
s5, heating and grinding the slurry, wherein the heating temperature is 95 ℃, and the grinding mesh number is 300;
s6, adjusting the pH value of the slurry to 8.2;
and S7, drying and pressing to form.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. The desulfurizer is characterized by comprising the following components in parts by mass: 15-20 parts of bamboo charcoal, 15-25 parts of weathered coal, 8-15 parts of sodium bicarbonate, 5-10 parts of sodium hydroxide, 5-10 parts of magnesium nitrate, 5-12 parts of activated carbon, 6-14 parts of ferric oxide, 6-15 parts of zinc oxide, 3-8 parts of ferrous sulfate and 10-15 parts of calcium hydroxide.
2. The desulfurizing agent according to claim 1, comprising the following components in parts by mass: 16-19 parts of bamboo charcoal, 17-22 parts of weathered coal, 10-13 parts of sodium bicarbonate, 6-8 parts of sodium hydroxide, 6-8 parts of magnesium nitrate, 7-11 parts of activated carbon, 8-12 parts of ferric oxide, 8-13 parts of zinc oxide, 4-7 parts of ferrous sulfate and 11-14 parts of calcium hydroxide.
3. The desulfurizing agent according to claim 1, comprising the following components in parts by mass: 18 parts of bamboo charcoal, 20 parts of weathered coal, 11 parts of sodium bicarbonate, 8 parts of sodium hydroxide, 6 parts of magnesium nitrate, 8 parts of activated carbon, 10 parts of ferric oxide, 12 parts of zinc oxide, 5 parts of ferrous sulfate and 12 parts of calcium hydroxide.
4. The preparation method of the desulfurizing agent is characterized by comprising the following steps of:
s1, adding the bamboo charcoal and the weathered coal into a carbonization furnace, and carbonizing at 600-800 ℃ for 2-3 hours;
s2, crushing the carbonized bamboo charcoal and weathered coal,
s3, mixing the crushed bamboo charcoal and weathered coal with active carbon, sodium hydroxide, sodium bicarbonate, magnesium nitrate, ferric oxide, zinc oxide, ferrous sulfate and calcium hydroxide;
s4, adding purified water into the powder prepared in the S3, and uniformly stirring to prepare slurry;
s5, heating and grinding the slurry, wherein the heating temperature is 80-100 ℃, and the grinding mesh number is 250-350 meshes;
s6, adjusting the pH value of the slurry to 7.8-8.5;
and S7, drying and pressing to form.
5. The method for preparing a desulfurizing agent according to claim 4, wherein: and the carbonization temperature in the S1 is 750 ℃, and the carbonization treatment time is 3 hours.
6. The method for preparing a desulfurizing agent according to claim 4, wherein: the heating temperature in the S5 is 95 ℃, and the grinding mesh number is 300 meshes.
7. The method for preparing a desulfurizing agent according to claim 4, wherein: the pH of the slurry in S7 was adjusted to 8.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595152.6A CN111744458A (en) | 2020-06-28 | 2020-06-28 | Desulfurizing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595152.6A CN111744458A (en) | 2020-06-28 | 2020-06-28 | Desulfurizing agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111744458A true CN111744458A (en) | 2020-10-09 |
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| CN202010595152.6A Pending CN111744458A (en) | 2020-06-28 | 2020-06-28 | Desulfurizing agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504944A (en) * | 2022-01-26 | 2022-05-17 | 大冶有色金属有限责任公司 | Composite desulfurizer for low-concentration sulfur dioxide flue gas desulfurization and application thereof |
| CN115445577A (en) * | 2022-08-19 | 2022-12-09 | 广西夏阳环保科技有限公司 | Ammonia water-calcium hydroxide composite atmospheric treatment agent and preparation method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504944A (en) * | 2022-01-26 | 2022-05-17 | 大冶有色金属有限责任公司 | Composite desulfurizer for low-concentration sulfur dioxide flue gas desulfurization and application thereof |
| CN115445577A (en) * | 2022-08-19 | 2022-12-09 | 广西夏阳环保科技有限公司 | Ammonia water-calcium hydroxide composite atmospheric treatment agent and preparation method thereof |
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