CN106947565A - A kind of clean type coal fuel and its production method - Google Patents
A kind of clean type coal fuel and its production method Download PDFInfo
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- CN106947565A CN106947565A CN201710220254.8A CN201710220254A CN106947565A CN 106947565 A CN106947565 A CN 106947565A CN 201710220254 A CN201710220254 A CN 201710220254A CN 106947565 A CN106947565 A CN 106947565A
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- Prior art keywords
- coal
- production method
- calcium
- calcium carbonate
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Classifications
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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
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/34—Other details of the shaped fuels, e.g. briquettes
-
- 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
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
A kind of production method of clean biometric matter moulded coal, it is characterised in that comprise the following steps：It will be mixed by the calcium carbonate crushed and screened with pyroligneous acid according to certain mass ratio, desulfurization denitrification agent is made in a period of time of reaction at a certain temperature.Above-mentioned desulfurizing agent is well mixed with coal according to certain calcium sulfur ratio, it is compressing under certain briquetting pressure, biomass type product of coal is made.The advantages of the present invention are：Using discarded biological material and coal as raw material, clean biometric matter moulded coal is produced under conditions of without binding agent, production technology is feasible, simple to operate, produced without discarded object, and it is few to produce biomass coal high combustion efficiency, disposal of pollutants, easy to utilize.
Description
Technical field
The present invention relates to Filter Tuber For Clean Coal application field, particularly a kind of clean type coal fuel and its production method.
Background technology
The current energy resource structure in China, the proportion that the production and consumption of coal account for primary energy is up to 75%, therefore China
It is also maximum in the world coal production and country of consumption.A large amount of consumption of coal result in a series of serious environmental problems, greatly
Quantity research confirms that coal burning is to cause northern China, particularly the important source of the serious haze weather in Beijing-tianjin-hebei Region.So
And, the resources characteristic of China is determined, within considerably long one period in future, and economic sustainable development is still to rely on making for coal
With.Additionally, it is contemplated that, as high-quality coal is gradually produced totally, the low bituminous coal and lignite for becoming degree will be by
Largely exploit and use, this will bring huge pressure to atmospheric environment.Therefore, coal utilization efficiency disease is improved to greatest extent
Ground reduces the pollution that coal uses process discharge, as one in the urgent need to the technical barrier captured.The production development of clean coal
And popularization and application, there is vital strategic importance for the sustainable development and environmental protection for supporting economic society.
The burning of coal can produce substantial amounts of sulfur dioxide, nitrogen oxides and soot emissions.These pollutants come with other
Sulfur dioxide, nitrogen oxides, volatile organic matter and the particulate matter of the generation in source together, form complicated intersection combined pollution.
The recent studies on of 2014 finds that it is also the weight for constituting airborne fine particulate matter that sulfate, nitrate and ammonium salt, which constitute inorganic aerosol,
Want part.2012, China promulgated new quality of air environment standard, and will be in promotion and implementation in 2016.In order to answer
To severe atmosphere pollution situation, we have had taken up some desulfurating dust-removing equipments, have contained that air is dirty to a certain extent
Contaminate thing and discharge increased trend.However, for the miniature boiler largely existed, due to lacking ripe technology and equipment, dioxy
It is difficult effectively to be cut down to change sulphur and soot emissions.In addition, as the low high-quality coal of sulfur content is largely consumed, we will not
Obtain and do not use sulphur coal largely.
The thinking of pollution mainly has two caused by control coal burning, and one is that desulfurizing agent is added into coal, in coal
Sulfur dioxide is fixed in combustion process；Two be after coal burning, the sulfur dioxide being discharged into tail gas to be absorbed and removed.Using
Widest desulfurizing agent is calcium carbonate, calcium oxide and calcium hydroxide.In high-temperature combustion boiler, calcium carbonate is first had in 700-
Decomposed under the conditions of 800 DEG C and produce calcium oxide, calcium oxide plays a part of desulfurization with sulfur dioxide reaction again, one at such a temperature
Sulfur dioxide is divided to be released out.Therefore, although calcium carbonate is cheap, but its desulfurized effect be not so good as hydroxide
Calcium and calcium oxide.Many researchs find that the utilization ratio of calcium carbonate only has 20-40%.After absorbent lime sulfur dioxide
Further reaction forms calcium sulfate, and calcium sulfate easily blocks micro- sky on calcium oxide surface, thus is unfavorable for the absorption of sulfur dioxide,
And may be sintered in higher 1200 DEG C of condition next part calcium oxide of temperature, it is also to cause absorbent lime sulfur dioxide to be imitated
One of the reason for rate is relatively low.Therefore, the performance of desulfurizing agent is improved, desulfurized effect is improved, particularly can adapt to different
Burning condition, still there is larger development space.Although in addition, the discharge capacity of nitrogen oxides is low during same amount of coal burning
In gasoline and diesel oil, but because the use of coal is huge, the discharge of nitrogen oxides equally can not be ignored.Therefore removed in progress desulfurization
Denitration is carried out while dirt, is also the technical barrier in the urgent need to capturing.
The content of the invention
It is an object of the invention to overcome the efficiency of traditional desulfurizing agent removal sulfur dioxide low, it is impossible to effectively remove nitrogen oxidation
Thing, and the desulfurizing agent usage amount deficiency such as larger prepare desulfurizing agent there is provided one kind using calcium carbonate and pyroligneous acid as raw material, utilize this
The production method of desulfurizing agent production clean type coal comprises the following steps：
（1）By calcium carbonate and pyroligneous acid according to mass ratio 0.5-8:100 mixing, react under 20-100 DEG C of temperature conditionss and are made
Desulfurization denitrification agent, the reaction time is 0.5-10h.Described calcium carbonate is the particle or powder for being less than 1mm by crushing and screening granularity
The calcium carbonate product of last shape, described pyroligneous acid is the byproduct that the dry distillation of wood is processed, and is mainly made up of organic acids such as acetic acid, acid
Degree is at 0.1-1.5 moles every liter.Preferably, 20-50 DEG C of reaction temperature, the reaction time is 2-4h.
（2）By desulfurizing agent and coal according to calcium sulfur ratio 1.0-3:1 is well mixed, using grinding tool by above-mentioned raw mixture
It is press-formed under certain briquetting pressure, the de- mill of the moulded coal after shaping obtains biomass coal product after drying.Described calcium sulphur
Than referring in desulfurizing agent the ratio between content of element sulphur in the calcium and coal of solubilised state.Preferably, calcium sulfur ratio is in 1.7-2.2:1 scope
It is interior, the briquetting pressure 8-35Mpa described in briquetting pressure, more preferably 10-20Mpa.
The advantages of the present invention are：Desulfurizing agent is prepared using pyroligneous acid and calcium carbonate as raw material, without viscous
Production clean biometric matter moulded coal under conditions of agent is tied, biomass coal high combustion efficiency is produced, has while high-efficiency desulfurization
Effect reduces the release of nitrogen oxides, and this method feasible process, simple to operate, discarded object yield are seldom, easy to utilize.
Embodiment
The present invention is described in further detail by following examples, but the technology contents that are described of the present embodiment be it is illustrative, without
It is limited, protection scope of the present invention should not be limited to according to this.
Embodiment 1：
By the wooden vinegar by crushing and screening particle of the granularity less than 1mm or powdered calcium carbonate with acidity is 1.2 moles every liter
Acid is according to mass ratio 5:100 mixing, desulfurization denitrification agent is made in reaction 3h under 25 DEG C of temperature conditionss.By above-mentioned desulfurizing agent and coal
Charcoal is according to calcium sulfur ratio 1.2:1 is well mixed, compressing under 18Mpa briquetting pressure, and biomass type product of coal is made.Prepare
The briquette prod gone out is tested by analysis, and caloric value is 22.1MJ/kg, compression strength 40N/cm2, sulfur-fixing rate 83%, nitrogen oxides
Clearance is 36%, flue dust clearance 75%.
Embodiment 2：
By the wood by crushing and screening particle of the granularity less than 0.5mm or powdered calcium carbonate with acidity is 0.5 mole every liter
Acetic acid is according to mass ratio 2:100 mixing, desulfurization denitrification agent is made in reaction 1h under 50 DEG C of temperature conditionss.By above-mentioned desulfurizing agent with
Coal is according to calcium sulfur ratio 1.2:1 is well mixed, compressing under 20Mpa briquetting pressure, and biomass type product of coal is made.System
Tested by analysis for the briquette prod gone out, caloric value is 24MJ/kg, compression strength 37N/cm2, sulfur-fixing rate 79%, nitrogen oxides
Clearance is 31%, flue dust clearance 72%.
Embodiment 3：
By the wood by crushing and screening particle of the granularity less than 1.8mm or powdered calcium carbonate with acidity is 1.0 moles every liter
Acetic acid is according to mass ratio 3:100 mixing, desulfurization denitrification agent is made in reaction 3h under 25 DEG C of temperature conditionss.By above-mentioned desulfurizing agent with
Coal is according to calcium sulfur ratio 1.3:1 is well mixed, compressing under 20Mpa briquetting pressure, and biomass type product of coal is made.System
Tested by analysis for the briquette prod gone out, caloric value is 24MJ/kg, compression strength 37N/cm2, sulfur-fixing rate 82%, nitrogen oxides
Clearance is 42%, flue dust clearance 72%.
Claims (5)
1. a kind of clean type coal fuel and its production method, it is characterised in that：Production stage is as follows：
1）By calcium carbonate and pyroligneous acid according to mass ratio 0.5-8:100 mixing, react under 20-100 DEG C of temperature conditionss and are made
Desulfurization denitrification agent, the reaction time is 0.5-10h；
2）By desulfurizing agent and coal according to calcium sulfur ratio 1.0-3:1 is well mixed, using grinding tool that above-mentioned raw mixture is certain
It is press-formed under briquetting pressure, the de- mill of the moulded coal after shaping obtains biomass coal product after drying.
2. a kind of production method of clean biometric matter moulded coal according to claim 1, it is characterised in that：Described calcium carbonate
To be less than 1mm particle or powdered calcium carbonate product by crushing and screening granularity.
3. a kind of production method of clean biometric matter moulded coal according to claim 1, it is characterised in that：Described calcium sulfur ratio
Refer in desulfurizing agent the ratio between content of element sulphur in the calcium and coal of solubilised state.Preferably, calcium sulfur ratio is in 1.7-2.2:1 scope
It is interior, the briquetting pressure 8-35Mpa described in briquetting pressure, more preferably 10-20Mpa.
4. a kind of production method of clean biometric matter moulded coal according to claim 1, it is characterised in that：The reaction temperature
20-50 DEG C, the reaction time is 2-4h.
5. a kind of production method of clean biometric matter moulded coal according to claim 1, it is characterised in that：Described pyroligneous acid
The byproduct processed for the dry distillation of wood, is mainly made up of, acidity is at 0.1-1.5 moles every liter organic acids such as acetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220254.8A CN106947565A (en) | 2017-03-16 | 2017-03-16 | A kind of clean type coal fuel and its production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220254.8A CN106947565A (en) | 2017-03-16 | 2017-03-16 | A kind of clean type coal fuel and its production method |
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| Publication Number | Publication Date |
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| CN106947565A true CN106947565A (en) | 2017-07-14 |
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| CN201710220254.8A Pending CN106947565A (en) | 2017-03-16 | 2017-03-16 | A kind of clean type coal fuel and its production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974325A (en) * | 2017-12-07 | 2018-05-01 | 河北千捷润化工科技有限公司 | Power plant's economical and environmental-protective combustion improver and preparation method thereof |
| CN111411008A (en) * | 2020-04-29 | 2020-07-14 | 中国科学院山西煤炭化学研究所 | Environment-friendly sulfur-fixing coal additive and preparation method and use method thereof |
| CN112354343A (en) * | 2020-10-12 | 2021-02-12 | 山东奥淼科技发展有限公司 | Ammonia-free organic liquid denitration agent and preparation method thereof |
| CN112646625A (en) * | 2019-10-12 | 2021-04-13 | 赫普能源环境科技有限公司 | Sludge briquette composition and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987909A (en) * | 2015-08-10 | 2015-10-21 | 南开大学 | Method for producing low-sulfur briquette by utilizing abandoned biomass of saline-alkali soil |
-
2017
- 2017-03-16 CN CN201710220254.8A patent/CN106947565A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987909A (en) * | 2015-08-10 | 2015-10-21 | 南开大学 | Method for producing low-sulfur briquette by utilizing abandoned biomass of saline-alkali soil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974325A (en) * | 2017-12-07 | 2018-05-01 | 河北千捷润化工科技有限公司 | Power plant's economical and environmental-protective combustion improver and preparation method thereof |
| CN112646625A (en) * | 2019-10-12 | 2021-04-13 | 赫普能源环境科技有限公司 | Sludge briquette composition and preparation method thereof |
| CN111411008A (en) * | 2020-04-29 | 2020-07-14 | 中国科学院山西煤炭化学研究所 | Environment-friendly sulfur-fixing coal additive and preparation method and use method thereof |
| CN112354343A (en) * | 2020-10-12 | 2021-02-12 | 山东奥淼科技发展有限公司 | Ammonia-free organic liquid denitration agent and preparation method thereof |
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Application publication date: 20170714 |
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