CN105695035A - Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof - Google Patents

Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof Download PDF

Info

Publication number
CN105695035A
CN105695035A CN201610107165.8A CN201610107165A CN105695035A CN 105695035 A CN105695035 A CN 105695035A CN 201610107165 A CN201610107165 A CN 201610107165A CN 105695035 A CN105695035 A CN 105695035A
Authority
CN
China
Prior art keywords
agent
mass percent
catalyst
fixed sulphur
coal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610107165.8A
Other languages
Chinese (zh)
Inventor
刘瑞芝
孙于龙
赵艳妍
陶从喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Cement Industry Design and Research Institute Co Ltd
Original Assignee
Tianjin Cement Industry Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Cement Industry Design and Research Institute Co Ltd filed Critical Tianjin Cement Industry Design and Research Institute Co Ltd
Priority to CN201610107165.8A priority Critical patent/CN105695035A/en
Publication of CN105695035A publication Critical patent/CN105695035A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20—Carbon compounds
    • B01J27/232—Carbonates
    • 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
    • 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
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
    • 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
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/24—Mixing, stirring of fuel components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses an inferior coal catalysis sulphur-fixing agent used in the cement industry. Potassium perchlorate, sodium chloride and tween are used as oxygenate, a bulking agent and a dispersing agent respectively, and a catalyst is prepared from 10-18% of calcium carbonate, 6-17% of ferric oxide, 1-2% of boric oxide and 68-83% of rare earth tailings. The catalysis sulphur-fixing agent is prepared from, by mass, 30-36% of the oxygenate, 8-17% of the bulking agent, 2-5% of the dispersing agent and 48-55% of the catalyst, wherein the rare earth tailings are prepared from, by mass, 5-12% of ceric oxide, 10-22% of lanthanum oxide, 55-75% of neodymium oxide and 5-12% of cerous nitrate. The invention further discloses preparing and using methods of the catalysis sulphur-fixing agent. The catalysis sulphur-fixing agent can promote coal powder combustion and reduce emission of sulfide and has no negative effect on performance of cement clinker.

Description

A kind of cement industry colm catalytically fixed sulphur agent and preparation and application thereof
Technical field
The invention belongs to field of inorganic nonmetallic material, particularly to a kind of cement industry colm catalytically fixed sulphur agent and preparation and application thereof。
Background technology
The main fuel that cement industry uses in producing is coal, and along with the rise day by day of the worsening shortages of high-quality bituminous coal and coal price, cement industry develops to the direction utilizing inferior fuel。But the use that colm is in manufacture of cement can make combustion characteristics be deteriorated, and energy consumption uprises, has influence on clinker burning, finally affects product quality。Colm is made to disclosure satisfy that the requirement of manufacture of cement, it is necessary to improve the combustion characteristics of colm。
Additionally, some colm also can produce substantial amounts of sulfide in combustion, cause SO in cement kiln flue gas2Concentration of emission severe overweight (200-3800mg/Nm3)。Specify according to relevant national standard, SO in cement kiln flue gas2Concentration of emission answers≤200mg/Nm3, unit product discharge capacity need to lower than 0.6kg/t。SO in the such as provincial standard such as Guangdong Province, the Zhejiang Province regulation cement kiln flue gas of some Shelter in South China Cities2Concentration≤100mg/Nm3。
Therefore, for promoting Utilizing Energy Sources in Reason, the ditch adjustment of economic knot and industrial upgrading, the sulfur dioxide that control fire coal causes discharges in a large number, acid deposition pollution deterioration trend, develop a kind of burning that can promote coal dust, can reduce again sulfide emission and the performance to clinker does not have the catalytically fixed sulphur agent of any negative effect very necessary。In order to improve the combustion position of colm and reduce the discharge of sulfide, both at home and abroad research and the use of combustion-supporting agent for fuel coal some research work are carried out, but great majority are for the efficient utilization of power plant or Industrial Boiler coal, certainly owing to production principle is different from technique, the combustion adjuvant of production and application does not adapt to the needs of Burning Behavior For Pulverized Coal in new dry process technique on the one hand, on the other hand, what have also can have adverse effect on manufacture of cement and performance, and can not be utilized by cement industry。
Summary of the invention
The present invention solves that the technical problem existed in known technology provides a kind of cement industry colm catalytically fixed sulphur agent and preparation and application thereof, this catalytically fixed sulphur agent can promote the burning of coal dust, improve the burn-off rate of coal dust, sulfide emission can be reduced again and the performance to clinker does not have any negative effect。
The present invention solves that first technical scheme that the technical problem existed in known technology is taked is: a kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 30～36%, bulking agent 8～17%, dispersant 2～5%, catalyst 48～55%；
Wherein, in catalyst, the mass percent of each component is: calcium carbonate 10～18%, ferrum oxide 6～17%, boron oxide 1～2%, rare-earth tailing 68～83%；The component of rare-earth tailing and mass percent thereof be: ceria 5～12%, lanthana 10～22%, Dineodymium trioxide 55～75%, cerous nitrate 5～12%。
The present invention solves that second technical scheme that the technical problem existed in known technology is taked is: the preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent, by oxygenation agent, bulking agent, dispersant and catalyst according to after the mass percent mixing set, grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4～6 times of mass percents, water temperature, at 60～70 DEG C, is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
The present invention solves that the 3rd technical scheme that the technical problem existed in known technology is taked is: the using method of above-mentioned cement industry colm catalytically fixed sulphur agent, by oxygenation agent, bulking agent, dispersant and catalyst are according to after the mass percent mixing set, grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4～6 times of mass percents, water temperature is at 60～70 DEG C, it is sufficiently mixed under homogenizer, obtain catalytically fixed sulphur agent mother solution, the mass percent of the addition of this catalytically fixed sulphur agent mother solution and coal-fired blending amount is 4/2000ths to thousand/1000ths。
The present invention has the advantage that and has the benefit effect that employing oxygenation agent, bulking agent, dispersant and catalyst are to improve the activity of coal; reduce igniting temperature of pulverized-coal; accelerate burning of coal speed; improve coal dust after-flame degree; and improve dore furnace and kiln temperature, improve the calorific intensity of coal dust, save coal consumption; and reduce sulfide emission and the performance to clinker does not have any negative effect, to solving cement industry energy crisis and environmental pollution has important practical significance。Production is simple simultaneously, processing ease, and Coal rank adaptability is good, can be used for various new dry-process cement rotary kiln coal。Practical test proves: trace catalytically fixed sulphur agent added in fire coal, and this catalyst adds in coal can economize on coal 3～8%, desulfurization efficiency 70～90%。
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, describe in detail as follows:
Embodiment 1:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 32%, bulking agent 15%, dispersant 5%, catalyst 48%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 18%, ferrum oxide 6%, boron oxide 1%, rare-earth tailing 75%；The component of rare-earth tailing and mass percent thereof be: ceria 5%, lanthana 10%, Dineodymium trioxide 75%, cerous nitrate 10%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, and grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4 times of mass percents, water temperature is at 60 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 2/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Xiangtan, Hunan Province 5000t/d new type nonaqueous cement production line uses, coal dust firing situation is better, effectively facilitate the burning of coal dust, improve the activity of coal, the ignition temperature of coal dust is reduced to 18 DEG C, improve after-flame degree and the calorific intensity of coal dust, and make vertical mill reduce, SO2Concentration of emission is from 350mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 71.4%, and coal saving rate is 4%, and the performance of clinker is not had any negative effect。
Embodiment 2:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 30%, bulking agent 17%, dispersant 4%, catalyst 49%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 13%, ferrum oxide 17%, boron oxide 2%, rare-earth tailing 68%；The component of rare-earth tailing and mass percent thereof be: ceria 12%, lanthana 21%, Dineodymium trioxide 55%, cerous nitrate 12%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, and grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 5 times of mass percents, water temperature is at 65 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 3/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, zhuzhou,hunan 5000t/d new type nonaqueous cement production line uses, the stability making kiln strengthens, burner face coking phenomenon reduces, effectively facilitate the burning of coal dust, improve the activity of coal, effect of coal saving is obvious, SO2Concentration of emission from 450mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 77.8%, and coal saving rate is 3%, and the performance of clinker is not had any negative effect。
Embodiment 3:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 31%, bulking agent 16%, dispersant 5%, catalyst 48%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 15%, ferrum oxide 7%, boron oxide 1%, rare-earth tailing 77%；The component of rare-earth tailing and mass percent thereof be: ceria 7%, lanthana 22%, Dineodymium trioxide 65%, cerous nitrate 6%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, and grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 6 times of mass percents, water temperature is at 70 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 3/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Hebei steam power plant 75t/h coal-powder boiler uses, the burning of coal dust can be effectively facilitated, improve the activity of coal, reduce igniting temperature of pulverized-coal 25 DEG C, improve coal dust after-flame degree and calorific intensity, SO can be made2Concentration of emission from 450mg/Nm3It is reduced to 120mg/Nm3, desulfurization efficiency is 73.3%, and coal saving rate is 6.2%, and equipment does not have any negative effect。
Embodiment 4:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 33%, bulking agent 14%, dispersant 4%, catalyst 49%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 10%, ferrum oxide 6%, boron oxide 1%, rare-earth tailing 83%；The component of rare-earth tailing and mass percent thereof be: ceria 7%, lanthana 12%, Dineodymium trioxide 74%, cerous nitrate 7%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4 times of mass percents, water temperature is at 65 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 3/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Sichuan 2500t/d new type nonaqueous cement production line uses, the activity increase of coal can be made, the burning of coal dust can be effectively facilitated, reduce igniting temperature of pulverized-coal 17 DEG C, improving coal dust after-flame degree and calorific intensity, ton grog mark coal consumption consumption reduces, SO2Concentration of emission from 600mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 83.3%, and coal saving rate is 4.8%。
Embodiment 5:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 34%, bulking agent 13%, dispersant 2%, catalyst 51%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 11%, ferrum oxide 7%, boron oxide 1%, rare-earth tailing 81%；The component of rare-earth tailing and mass percent thereof be: ceria 5%, lanthana 10%, Dineodymium trioxide 75%, cerous nitrate 10%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 5 times of mass percents, water temperature is at 70 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 2/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Yunnan 2000t/d new type nonaqueous cement production line uses, the activity increase of coal can be made, the burning of coal dust can be effectively facilitated, reducing igniting temperature of pulverized-coal 20 DEG C, 3 days intensity of grog can be made to increase 1MPa, captured sulfur result is obvious, ton grog mark coal consumption reduces, SO2Concentration of emission from 350mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 71.4%, and coal saving rate is 3.6%。
Embodiment 6:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 30%, bulking agent 10%, dispersant 5%, catalyst 55%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 16%, ferrum oxide 6%, boron oxide 2%, rare-earth tailing 76%；The component of rare-earth tailing and mass percent thereof be: ceria 5%, lanthana 15%, Dineodymium trioxide 75%, cerous nitrate 5%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 6 times of mass percents, water temperature is at 60 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 2/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Fujian 5000t/d new type nonaqueous cement production line uses, kiln end temperature controllability can be made to strengthen, effect of coal saving is obvious, effectively facilitates the burning of coal dust, improves the activity of coal, reduce igniting temperature of pulverized-coal 24 DEG C, improve coal dust after-flame degree and calorific intensity, save coal consumption, SO2Concentration of emission from 550mg/Nm3It is reduced to 150mg/Nm3, desulfurization efficiency is 72.7%, and coal saving rate is 5.8%, and 28 days intensity of grog increases 21MPa。
Embodiment 7:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 32%, bulking agent 12%, dispersant 5%, catalyst 51%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 14%, ferrum oxide 8%, boron oxide 1%, rare-earth tailing 77%；The component of rare-earth tailing and mass percent thereof be: ceria 6%, lanthana 10%, Dineodymium trioxide 74%, cerous nitrate 10%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4 times of mass percents, water temperature is at 70 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 4/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Zhejiang Huzhou 2500t/d new type nonaqueous cement production line uses, grog liter weight and three days intensity can be made to increase, reduce igniting temperature of pulverized-coal 19 DEG C, kiln skinning reduces, SO2Concentration of emission from 350mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 71.4%, and coal saving rate is 3%, and the performance of clinker is not had any negative effect。
Embodiment 8:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 35%, bulking agent 9%, dispersant 4%, catalyst 52%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 12%, ferrum oxide 10%, boron oxide 2%, rare-earth tailing 76%；The component of rare-earth tailing and mass percent thereof be: ceria 8%, lanthana 11%, Dineodymium trioxide 73%, cerous nitrate 8%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water (water temperature is at 60 DEG C) of 5 times of mass percents, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 4/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Zigong, Sichuan 3200t/d new type nonaqueous cement production line uses, overall firer's condition can be made to improve, blown sands material reduces, phenomenon of " being branded as burner coal injection pipe " reduces, reduce igniting temperature of pulverized-coal 18 DEG C, SO2Concentration of emission from 650mg/Nm3It is reduced to 150mg/Nm3, desulfurization efficiency is 76.9%, and coal saving rate is 8%。
Embodiment 9:
A kind of cement industry colm catalytically fixed sulphur agent, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, formed catalyst by calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 36%, bulking agent 8%, dispersant 4%, catalyst 52%；Wherein, in catalyst, the mass percent of each component is: calcium carbonate 17%, ferrum oxide 7%, boron oxide 2%, rare-earth tailing 74%；The component of rare-earth tailing and mass percent thereof be: ceria 7%, lanthana 10%, Dineodymium trioxide 75%, cerous nitrate 8%。
The preparation method of above-mentioned cement industry colm catalytically fixed sulphur agent is:
By oxygenation agent, bulking agent, dispersant and catalyst by the mixing of above-mentioned mass percent, mixture is ground to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 6 times of mass percents, water temperature is at 65 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
It is 3/1000ths according to the addition of catalytically fixed sulphur agent mother solution and the mass percent of coal-fired blending amount, Fujian 2500t/d new type nonaqueous cement production line uses, the burning of coal dust can be effectively facilitated, improve the activity of coal, reduce igniting temperature of pulverized-coal 23 DEG C, improve coal dust after-flame degree, overall kiln stable conditions, SO2From 550mg/Nm3It is reduced to 100mg/Nm3, desulfurization efficiency is 81.8%, and coal saving rate is 4.3%, and the performance of clinker is not had any negative effect。
The action principle of the present invention:
Catalytic process: first catalyst is reduced into metal (or metal suboxide) in a heated condition, then metal (or metal suboxide) adsorption of oxygen is relied on, metal (or metal suboxide) oxidation is made to obtain metal-oxide (or higher valence metal oxide), and then carbon reducing metal oxide again (or higher valence metal oxide), metal (or metal suboxide) is constantly in redox circulation like this, at metal (or metal suboxide) and oxide (or higher valence metal oxide) two states go。From macroscopically, oxygen atom constantly transmits from metal-oxide (or higher valence metal oxide) to carbon atom, accelerates oxygen diffusion velocity, makes burning of coal reaction be prone to carry out。
Sodium chloride had both served catalysis burning-rate accelerator, served again the effect of bulking agent。At high temperature, sodium chloride makes the inside hot pressing of coal particle exceed outside hot pressing, fissions, and increasing specific surface area increases oxygen supply face, makes coal burn completely；Meanwhile, when being heated to more than 800 DEG C, fusing is decomposed into sodium and chlorine, sodium and chlorine and has combustion-supporting and catalytic action。
Additionally, catalytically fixed sulphur agent also has a small amount of tween dispersant, it is possible to make other combustion adjuvant in formula be better dispersed in water, be conducive to the uniform sprinkling of catalyst。
Catalytically fixed sulphur agent adds oxygenation agent, it is possible to play the effect increasing active oxygen, reduce reaction temperature, change the situation of ischaemia during pyrolysis of coal burning simultaneously, and heat concentration, contribute to the further burning of coal, then improve efficiency of combustion, reduce air pollution。
Gu sulfur process: under catalytically fixed sulphur agent effect, sulfur dioxide in flue gas (SO2) it is quickly generated sulfur trioxide (SO3), significantly improve SOx reactivity and desulfurization reaction speed。
SO in flue gas3React with calcium carbonate, ferrum oxide and boron oxide, generate sulfate, it is achieved flue gas high-efficiency desulfurization。
Burning till the stage at cement kiln, there is solid state reaction with calcium oxide, aluminium oxide etc. in sulfate, generates containing sulfur minerals, it is achieved high-temperature fixed sulfur。
Although being described above in conjunction with the preferred embodiments of the present invention; but the invention is not limited in above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; it is not restrictive; those of ordinary skill in the art is under the enlightenment of the present invention; without departing under present inventive concept and scope of the claimed protection situation, it is also possible to making a lot of form, these belong within protection scope of the present invention。

Claims (3)

1. a cement industry colm catalytically fixed sulphur agent, it is characterized in that, using potassium hyperchlorate as oxygenation agent, using sodium chloride as bulking agent, using tween as dispersant, calcium carbonate, ferrum oxide, boron oxide and rare-earth tailing form catalyst, and in this catalytically fixed sulphur agent, the mass percent of each component is: oxygenation agent 30～36%, bulking agent 8～17%, dispersant 2～5%, catalyst 48～55%；
Wherein, in catalyst, the mass percent of each component is: calcium carbonate 10～18%, ferrum oxide 6～17%, boron oxide 1～2%, rare-earth tailing 68～83%；The component of rare-earth tailing and mass percent thereof be: ceria 5～12%, lanthana 10～22%, Dineodymium trioxide 55～75%, cerous nitrate 5～12%。
2. the cement industry preparation method of colm catalytically fixed sulphur agent as claimed in claim 1, it is characterized in that, by oxygenation agent, bulking agent, dispersant and catalyst according to after the mass percent mixing set, grind to form the powder material of less than 200 microns, obtaining catalytically fixed sulphur agent dry powder, be subsequently adding the water of 4～6 times of mass percents, water temperature is at 60～70 DEG C, it is sufficiently mixed under homogenizer, obtains catalytically fixed sulphur agent mother solution。
3. the cement industry using method of colm catalytically fixed sulphur agent as claimed in claim 1, it is characterized in that, by oxygenation agent, bulking agent, dispersant and catalyst according to after the mass percent mixing set, grind to form the powder material of less than 200 microns, obtain catalytically fixed sulphur agent dry powder, it is subsequently adding the water of 4～6 times of mass percents, water temperature is at 60～70 DEG C, it is sufficiently mixed under homogenizer, obtaining catalytically fixed sulphur agent mother solution, the mass percent of the addition of this catalytically fixed sulphur agent mother solution and coal-fired blending amount is 4/2000ths to thousand/1000ths。
CN201610107165.8A 2016-02-26 2016-02-26 Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof Pending CN105695035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610107165.8A CN105695035A (en) 2016-02-26 2016-02-26 Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610107165.8A CN105695035A (en) 2016-02-26 2016-02-26 Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof

Publications (1)

Publication Number Publication Date
CN105695035A true CN105695035A (en) 2016-06-22

Family

ID=56223482

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610107165.8A Pending CN105695035A (en) 2016-02-26 2016-02-26 Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof

Country Status (1)

Country Link
CN (1) CN105695035A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106118799A (en) * 2016-08-03 2016-11-16 安徽中缘新材料科技有限公司 A kind of cement industry colm catalytically fixed sulphur agent
CN107164013A (en) * 2017-06-01 2017-09-15 严生 A kind of powder nanometer catalytically fixed sulphur agent and preparation method thereof of new type nonaqueous cement raw material
CN107174934A (en) * 2017-06-01 2017-09-19 严生 A kind of new dry process rotary kiln liquid nano catalytic desulfurizing agent and preparation method thereof
CN109628196A (en) * 2018-12-27 2019-04-16 湖北工业大学 A kind of preparation method of fixed nitrogen type cement rotary furnace coal-saving agent
CN111298805A (en) * 2020-03-13 2020-06-19 吉林省惠净环保有限公司 Coal-fired catalyst and preparation method and application thereof
CN114405262A (en) * 2021-11-23 2022-04-29 天津水泥工业设计研究院有限公司 Additive for improving performance of calcium-based desulfurizer and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090071067A1 (en) * 2007-09-17 2009-03-19 Ian Macpherson Environmentally-Friendly Additives And Additive Compositions For Solid Fuels
CN102453584A (en) * 2010-10-29 2012-05-16 曲靖花山化工原料厂 Furnace calcification desulphurization mineral powder material
CN102618348A (en) * 2012-04-17 2012-08-01 中材国际环境工程（北京）有限公司 Coal-saving denitration combustion improver for cement industry
CN102827666A (en) * 2012-09-20 2012-12-19 赵冠军 Liquid coal combustion improver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090071067A1 (en) * 2007-09-17 2009-03-19 Ian Macpherson Environmentally-Friendly Additives And Additive Compositions For Solid Fuels
CN102453584A (en) * 2010-10-29 2012-05-16 曲靖花山化工原料厂 Furnace calcification desulphurization mineral powder material
CN102618348A (en) * 2012-04-17 2012-08-01 中材国际环境工程（北京）有限公司 Coal-saving denitration combustion improver for cement industry
CN102827666A (en) * 2012-09-20 2012-12-19 赵冠军 Liquid coal combustion improver

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106118799A (en) * 2016-08-03 2016-11-16 安徽中缘新材料科技有限公司 A kind of cement industry colm catalytically fixed sulphur agent
CN107164013A (en) * 2017-06-01 2017-09-15 严生 A kind of powder nanometer catalytically fixed sulphur agent and preparation method thereof of new type nonaqueous cement raw material
CN107174934A (en) * 2017-06-01 2017-09-19 严生 A kind of new dry process rotary kiln liquid nano catalytic desulfurizing agent and preparation method thereof
CN109628196A (en) * 2018-12-27 2019-04-16 湖北工业大学 A kind of preparation method of fixed nitrogen type cement rotary furnace coal-saving agent
CN109628196B (en) * 2018-12-27 2021-01-26 湖北工业大学 Preparation method of nitrogen fixation type coal saving agent for cement short kiln
CN111298805A (en) * 2020-03-13 2020-06-19 吉林省惠净环保有限公司 Coal-fired catalyst and preparation method and application thereof
CN111298805B (en) * 2020-03-13 2023-04-11 吉林省惠净环保有限公司 Coal-fired catalyst and preparation method and application thereof
CN114405262A (en) * 2021-11-23 2022-04-29 天津水泥工业设计研究院有限公司 Additive for improving performance of calcium-based desulfurizer and application thereof

Similar Documents

Publication Publication Date Title
CN105695035A (en) Inferior coal catalysis sulphur-fixing agent used in cement industry and preparing and using methods thereof
CN101987783B (en) Method for producing active pulverized lime by utilizing coal gas to calcine limestone through suspended state pre-heating decomposing furnace
CN102853654B (en) Air distribution process and air distribution system for rotary kiln
CN106642085A (en) Staged combustion technology for achieving efficient combustion of fire-retardant coal in pre-decomposition kiln and low NOx emission
CN104713347B (en) Air-distributed combustion device achieving efficient combustion and low NOX emission of cement decomposing furnace
CN102311835A (en) Fire coal synergist
CN102618348B (en) Coal-saving denitration combustion improver for cement industry
CN111750671B (en) Decomposing furnace zone-organized combustion self-denitration system and process
CN102827665A (en) Coal saving and desulfurating combustion improver and preparation method thereof
CN204058570U (en) The change system of a kind of vanadium extraction bone coal desulphurizing roasting and cogeneration
CN103170225A (en) System for realizing combination of oxygen-enriched combustion assistance and flue gas desulfurization and denitrification of industrial kiln furnace
CN205690388U (en) A kind of high volatile carbon-containing fuel hot efflorescence high efficient combustion device
CN103409199A (en) Biomass boiler anticorrosive agent, and preparation and application thereof
CN104371778A (en) High-energy carbon alcohol clean fuel slurry and preparation method thereof
CN1958757B (en) Combustion supporting, coal saving, modified additive
CN203264541U (en) System capable of combining oxygen-enriched combustion supporting with flue gas desulfurization and denitration for industrial kiln
CN103031174B (en) Liquid state coal-saving additive
CN203024574U (en) Local oxygen-enriched combustion system of cement calcining kiln
CN102586530A (en) Method for producing sponge iron by using coke-oven gas
CN203545892U (en) Cement raw meal preheating and predecomposition device
CN114061320A (en) Circulating coupling treatment system for pellet flue gas of chain grate machine, rotary kiln and circular cooler and flue gas treatment process thereof
CN112546833A (en) Ammonia-free denitration method and device for tail gas in cement kiln production
CN104479789A (en) Energy-saving sulfur-fixing clean fuel coal and preparation method thereof
CN204373416U (en) For SCR board-like catalyst calcination stove air compensation device
CN106118799A (en) A kind of cement industry colm catalytically fixed sulphur agent

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160622