CN109609240A - A kind of coal combustion catalyst - Google Patents
A kind of coal combustion catalyst Download PDFInfo
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- CN109609240A CN109609240A CN201811442888.9A CN201811442888A CN109609240A CN 109609240 A CN109609240 A CN 109609240A CN 201811442888 A CN201811442888 A CN 201811442888A CN 109609240 A CN109609240 A CN 109609240A
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- coal
- coal combustion
- combustion catalyst
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
Abstract
The invention discloses a kind of coal combustion catalysts, it is made of the component of following parts by weight: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of copper nitrates, 110 parts of water, 13 parts of faintly acid electroplated aluminum water, the preparation method of coal combustion catalyst, described specific step is as follows: ferric nitrate and copper nitrate being put into glass dish, is stirred with glass bar, obtains nitrate mixture, mixing speed is 120r/min, mixing time is 11min, and when stirring heats glass dish, and heating temperature is 46 DEG C.A kind of coal combustion catalyst of the present invention can solidify, the effect for not making sulphur gasify to flowing in coal, meanwhile, Fe2O3Some alkaline-earth metal and transition metal are also mainly contained in waste residue, these ingredients are all the good catalysts that can be used as catalysis coal burning, carbonate reacts with coal in faintly acid electroplated aluminum water, generate a small amount of hydrogen, promote the burning of coal early period, it carries out entering high-temp combustion period faster, brings better prospect of the application.
Description
Technical field
The present invention relates to combustion catalyst field, in particular to a kind of coal combustion catalyst.
Background technique
The non-renewable energy in China is mainly based on coal, traditional coal burning mode and low-level efficiency of combustion, directly
China's atmospheric environment is influenced, when coal burning, influences big compression ring when generating these ingredients such as sulfur dioxide, nitrogen oxides, flue dust
The main component in border；
There are certain drawbacks in existing coal combustion catalyst, existing catalyst is all to be sprayed on coal when in use
Surface, first reacted with coal surface, in coal burning, coal cannot be accelerated and enter the high-temp combustion stage, coal is low
When temperature burning, the platform element in coal cannot generate harmful carbon monoxide and sulfur monoxide sufficiently in conjunction with oxygen, secondly,
In existing catalyst manufacturing process, it often will appear extra reaction, so that catalyst component contains in the catalyst of final molding
Amount is reduced, and can only be promoted content by changing the amount being added, the reasonable utilization of resource be influenced, for this purpose, it is proposed that a kind of coal
Charcoal combustion catalyst.
Summary of the invention
The main purpose of the present invention is to provide a kind of coal combustion catalysts, can effectively solve asking in background technique
Topic.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of coal combustion catalyst is prepared from the following materials according to parts by weight: 20~25 parts of magnesium sulfate, 10
~12 parts of ferric nitrates, 6~10 parts of copper nitrates, 5~8 parts of iron oxide waste residues, 100~120 parts of water, 12~15 parts of faintly acid electroplated aluminums
Water.
Preferably, according to parts by weight, be prepared from the following materials: 21~24 parts of magnesium sulfate, 10~11 parts of ferric nitrates,
8~9 parts of copper nitrates, 6~7 parts of iron oxide waste residues, 105~115 parts of water, 13~14 parts of faintly acid electroplated aluminum water.
Preferably, according to parts by weight, it is prepared from the following materials: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of nitric acid
Copper, 6 parts of iron oxide waste residues, 110 parts of water, 13 parts of faintly acid electroplated aluminum water.
Preferably, a kind of preparation method of coal combustion catalyst, described specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture；
(2), oxidation molten iron is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product using glass bar and urges
Agent；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, is uniformly mixed after magnesium sulfate dissolution, it is quiet
It sets to obtain catalyst.
Preferably, in the step (1), mixing speed is 100~150r/min, and mixing time is 10~12min, stirring
When to glass dish heat, heating temperature be 45~48 DEG C.
Preferably, in the step (2), oxidation molten iron the following steps are included:
(2.1), iron oxide waste residue is put into steel pulverizer and is crushed, and faintly acid electroplated aluminum water is added, mixed
Water；
(2.2), mixing water is filtered using filter screen, obtains oxidation molten iron.
Preferably, in the step (2.2), mixing water is successively passed through 100 mesh filter screens by when filtering and 200 mesh filter
Net.
Preferably, in the step (3), time of repose is 20~22min, and when standing is put into baking oven heating, heating temperature
It is 46~47 DEG C.
Compared with prior art, the invention has the following beneficial effects:
1、Fe2O3Waste residue, which can promote coal burning also as catalyst, can enhance the release rate of sulphur, after magnesium sulfate hydrolysis
MgO is generated, can be solidified to being flowed in coal, the effect for not making sulphur gasify, meanwhile, Fe2O3Some alkaline earths are also mainly contained in waste residue
Metal and transition metal, these metals exist mostly in the form of metal oxide, these ingredients are all that can be used as catalysis coal
The good catalyst of charcoal burning, improves catalyst entirety catalytic effect；
2, manufacture craft of the present invention is simple, while can preferably control the sequence reacted between each ingredient, and raising is urged
The content of catalyst component in agent, further increases catalytic effect when coal burning；
3, carbonate and coal react in faintly acid electroplated aluminum water, generate a small amount of hydrogen, promote coal early period
Burning carries out entering high-temp combustion period faster, prolonged low-temperature burning is avoided to generate harmful carbon monoxide and an oxygen
Change sulphur etc..
Detailed description of the invention
Fig. 1 is a kind of overall structure flow chart of coal combustion catalyst preparation method of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
A kind of coal combustion catalyst is made of the component of following parts by weight: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of nitre
Sour copper, 110 parts of water, 13 parts of faintly acid electroplated aluminum water.
The preparation method of coal combustion catalyst, described specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture, mixing speed
For 120r/min, mixing time 11min, when stirring, heats glass dish, and heating temperature is 46 DEG C；
(2), water is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product catalyst using glass bar；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, is uniformly mixed after magnesium sulfate dissolution, it is quiet
Set to obtain catalyst, time of repose 20min, when standing is put into baking oven heating, and heating temperature is 46 DEG C.
Embodiment 2
A kind of coal combustion catalyst is made of the component of following parts by weight: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of nitre
Sour copper, 6 parts of iron oxide waste residues, 110 parts of water, 13 parts of faintly acid electroplated aluminum water.
The preparation method of coal combustion catalyst, described specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture, mixing speed
For 120r/min, mixing time 11min, when stirring, heats glass dish, and heating temperature is 46 DEG C；
(2), oxidation molten iron is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product using glass bar and urges
Agent, oxidation molten iron the following steps are included:
(2.1), iron oxide waste residue is put into steel pulverizer and is crushed, and faintly acid electroplated aluminum water is added, mixed
Water；
(2.2), mixing water is filtered using filter screen, mixing water is successively passed through 100 mesh filter screens and 200 mesh by when filtering
Filter screen obtains oxidation molten iron；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, is uniformly mixed after magnesium sulfate dissolution, it is quiet
Set to obtain catalyst, time of repose 20min, when standing is put into baking oven heating, and heating temperature is 46 DEG C, and obtained concentration is
0.2% Fe2O3。
Embodiment 3
A kind of coal combustion catalyst is made of the component of following parts by weight: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of nitre
Sour copper, 6 parts of iron oxide waste residues, 110 parts of water, 13 parts of faintly acid electroplated aluminum water.
The preparation method of coal combustion catalyst, described specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture, mixing speed
For 120r/min, mixing time 11min, when stirring, heats glass dish, and heating temperature is 46 DEG C；
(2), oxidation molten iron is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product using glass bar and urges
Agent, oxidation molten iron the following steps are included:
(2.1), iron oxide waste residue is put into steel pulverizer and is crushed, and faintly acid electroplated aluminum water is added, mixed
Water；
(2.2), mixing water is filtered using filter screen, mixing water is successively passed through 100 mesh filter screens and 200 mesh by when filtering
Filter screen obtains oxidation molten iron；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, is uniformly mixed after magnesium sulfate dissolution, it is quiet
Set to obtain catalyst, time of repose 20min, when standing is put into baking oven heating, and heating temperature is 46 DEG C, and obtained concentration is
0.4% Fe2O3。
Embodiment 4
A kind of coal combustion catalyst is made of the component of following parts by weight: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of nitre
Sour copper, 6 parts of iron oxide waste residues, 110 parts of water, 13 parts of faintly acid electroplated aluminum water.
The preparation method of coal combustion catalyst, described specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture, mixing speed
For 120r/min, mixing time 11min, when stirring, heats glass dish, and heating temperature is 46 DEG C；
(2), oxidation molten iron is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product using glass bar and urges
Agent, oxidation molten iron the following steps are included:
(2.1), iron oxide waste residue is put into steel pulverizer and is crushed, and faintly acid electroplated aluminum water is added, mixed
Water；
(2.2), mixing water is filtered using filter screen, mixing water is successively passed through 100 mesh filter screens and 200 mesh by when filtering
Filter screen obtains oxidation molten iron；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, is uniformly mixed after magnesium sulfate dissolution, it is quiet
Set to obtain catalyst, time of repose 20min, when standing is put into baking oven heating, and heating temperature is 46 DEG C, and it is 1% that concentration, which is made,
Fe2O3。
Sulphur release rate (%)=(M0·S0-M1·S1)/M0·S0100%；
S0For preceding sulfur content in coal amount of burning, unit %；
S1For sulfur content in slag after burning, unit %.
Embodiment 1 is control group in table 1, takes 300g raw coal and directly burns, in embodiment 2~4, different numbers are added
Iron oxide is made the catalyst of various concentration iron oxide content, is added respectively into 300g raw coal, the Fe of 3g various concentration2O3,
Heat release rate when detecting 0.5h, 1.5h and 2.5h, test result is as follows:
By 1 experimental data of table it is found that coal combustion catalyst of the present invention, is added to the burn tinctuer of the coal cinder burning of iron oxide
It to be apparently higher than raw coal with calorific value release rate, calorific value release rate improves about 21%, it is seen that iron oxide has the burning of coal
There is apparent catalytic action；But the additive amount for improving iron oxide waste residue does not influence the combustibility of coal substantially, and calorific value is released
It puts rate curve alternately to rise, without apparent trend, because containing other impurities in iron oxide waste residue, these impurity do not have heat
Value, is excessively added the burning that must will affect coal, while coal grain is possible to be wrapped up by impurity so that oxygen can not directly and coal
Grain catalytic combustion also counteracts the release of generation gas after burning, and the efficiency of combustion for eventually leading to coal reduces, so with environmental protection
Angle, the additional amount of catalyst is appropriate and a small amount of, and separately embodiment 3 is optimal selection as shown in Table 1.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of coal combustion catalyst, which is characterized in that according to parts by weight, be prepared from the following materials: 20~25 parts
Magnesium sulfate, 10~12 parts of ferric nitrates, 6~10 parts of copper nitrates, 5~8 parts of iron oxide waste residues, 100~120 parts of water, 12~15 parts it is weak
Acid electroplated aluminum water.
2. a kind of coal combustion catalyst according to claim 1, which is characterized in that according to parts by weight, by following original
Material is prepared: 21~24 parts of magnesium sulfate, 10~11 parts of ferric nitrates, 8~9 parts of copper nitrates, 6~7 parts of iron oxide waste residues, 105~
115 parts of water, 13~14 parts of faintly acid electroplated aluminum water.
3. a kind of coal combustion catalyst according to claim 1, which is characterized in that according to parts by weight, by following original
Material is prepared: 23 parts of magnesium sulfate, 11 parts of ferric nitrates, 7 parts of copper nitrates, 6 parts of iron oxide waste residues, 110 parts of water, 13 parts of faintly acid aluminium
Water is electroplated.
4. the preparation method of any a kind of coal combustion catalyst according to claim 1~3, which is characterized in that described
Specific step is as follows:
(1), ferric nitrate and copper nitrate are put into glass dish, are stirred with glass bar, obtain nitrate mixture；
(2), oxidation molten iron is added dropwise in nitrate mixture, and quickly stirs to get semi-finished product catalysis using glass bar
Agent；
(3), semi-finished product catalyst is heated, and water and magnesium sulfate mixed solution is added, uniformly mixes, stands after magnesium sulfate dissolution
To catalyst.
5. a kind of preparation method of coal combustion catalyst according to claim 4, it is characterised in that: the step (1)
In, mixing speed is 100~150r/min, and mixing time is 10~12min, is heated when stirring to glass dish, heating temperature is
45~48 DEG C.
6. a kind of preparation method of coal combustion catalyst according to claim 4, it is characterised in that: the step (2)
In, oxidation molten iron the following steps are included:
(2.1), iron oxide waste residue is put into steel pulverizer and is crushed, and faintly acid electroplated aluminum water is added, obtain mixing water；
(2.2), mixing water is filtered using filter screen, obtains oxidation molten iron.
7. a kind of preparation method of coal combustion catalyst according to claim 6, it is characterised in that: the step
(2.2) in, mixing water is successively passed through 100 mesh filter screens and 200 mesh filter screens by when filtering.
8. a kind of preparation method of coal combustion catalyst according to claim 4, it is characterised in that: the step (3)
In, time of repose is 20~22min, and when standing is put into baking oven heating, and heating temperature is 46~47 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442888.9A CN109609240A (en) | 2018-11-29 | 2018-11-29 | A kind of coal combustion catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442888.9A CN109609240A (en) | 2018-11-29 | 2018-11-29 | A kind of coal combustion catalyst |
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Family
ID=66006600
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206528A (en) * | 2011-04-21 | 2011-10-05 | 阳泉鑫环高新技术有限责任公司 | Coal combustion modified catalysis additive |
| CN102827665A (en) * | 2012-09-10 | 2012-12-19 | 武汉钢铁(集团)公司 | Coal saving and desulfurating combustion improver and preparation method thereof |
| CN104293411A (en) * | 2014-09-10 | 2015-01-21 | 济南大学 | Preparation method of coal combustion catalyst |
-
2018
- 2018-11-29 CN CN201811442888.9A patent/CN109609240A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206528A (en) * | 2011-04-21 | 2011-10-05 | 阳泉鑫环高新技术有限责任公司 | Coal combustion modified catalysis additive |
| CN102827665A (en) * | 2012-09-10 | 2012-12-19 | 武汉钢铁(集团)公司 | Coal saving and desulfurating combustion improver and preparation method thereof |
| CN104293411A (en) * | 2014-09-10 | 2015-01-21 | 济南大学 | Preparation method of coal combustion catalyst |
Non-Patent Citations (2)
| Title |
|---|
| 曹丽琼: "燃煤催化剂对煤炭燃烧性能的影响", 《化工管理》 * |
| 李晋萍: "催化剂性能对煤炭燃烧产生的影响", 《化工设计通讯》 * |
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