CN1064394C - Method for making coal combustion catalyst promoting agent - Google Patents
Method for making coal combustion catalyst promoting agent Download PDFInfo
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- CN1064394C CN1064394C CN97109014A CN97109014A CN1064394C CN 1064394 C CN1064394 C CN 1064394C CN 97109014 A CN97109014 A CN 97109014A CN 97109014 A CN97109014 A CN 97109014A CN 1064394 C CN1064394 C CN 1064394C
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- combustion catalyst
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Abstract
The present invention relates to a method for making a coal combustion catalyst promoting agent. Natural zeolite is repeatedly soaked by an HCl or CaCl2 solution to obtain HN or CaN type carriers. The HN or CaN type carriers are put into a kneading machine to be blended. A saturated solution of FeSO4, Cu(NO3)2 and H2GeO3 of which the weight ratio is 1 to 200:1 to 150:1 is used for spraying the HN or CaN type carriers to be dried at 60 to 120DEGC and be roasted for 4 to 8 hours at 500 to 700DEGC. The coal combustion catalyst promoting agent made by the method has high activity, 0.01 to 0.5% of different catalysts are added, the use level of the various catalysts is reduced to 0.2 to 0.5% from 4 to 10% of coal quantity, the coal combustion efficiency is enhanced and the slag quantity and the discharge amount of harmful gas are effectively reduced.
Description
The present invention relates to make the promotor of coal combustion catalyst with the method for chemistry or physics.
Coal is very important energy and industrial chemicals, yet it belongs to non-renewable mineral wealth again, therefore, is " high-level efficiency, the low pollution for the basic demand of coal burning.”。For realizing this goal, except that improve equipment and operating procedure, using coal combustion catalyst also is one of effective measure.For this reason, both at home and abroad the expert is devoted to the research manufacturing of coal combustion catalyst and applies when paying close attention to the theoretical investigation of coal catalyticcombustion.At present, coal combustion catalyst is mostly by the metal-salt of unbound state or metal oxide is composite forms, as state's Gazette of Patent for Invention publication number CN1121951A in 8 days Mays in 1996 by name " a kind of perfect combustion catalyzer and contain the fuel of this additive " disclosed perfect combustion catalyzer of application for a patent for invention (application number 94106288.0), prescription is by weight: ferric oxide 30-70%, wood chip 0-25%, calcium oxide 10-45%, nitric acid 1-5%, water 5-20%.Existing coal combustion catalyst blending process is simple, but resulting catalyst activity is not high enough, and addition is bigger, can reach the 4-10% of coal amount by weight, thereby causes slag and NO
x, SO
xIncrease Deng harmful gas emission.
Purpose of the present invention provides a kind of manufacture method, and promotor being that makes by this method is attached to the metal oxide on the carrier, this promotor is added in all kinds of coal combustion catalysts, can improve catalyst activity, reduce its addition significantly, reduce its pollution and wait side effect.
The manufacture method of coal combustion catalyst promoting agent of the present invention comprises the steps: (1): with 0.5-5NHCl or 0.05-0.5NCaCl
2The aqueous solution soaking natural zeolite, carry out ion-exchange, obtain HN or CaN type carrier, this carrier is put into kneader, (2) with deionized water respectively with the iron oxysalt, copper oxysalt and germanic acid are mixed with saturated solution, measure the carrier water-intake rate, determine the saturated solution total amount according to water-intake rate, weight ratio is followed successively by 1～200: 1～150: three kinds of saturated solutions of 1 constantly flood with vaporific being sprayed onto on the carrier that is just stirring in kneader, (3) with 60 ℃ of-120 ℃ of temperature the carrier drying through dipping is handled, (4) in air atmosphere to the carrier after the drying treatment with 500 ℃-700 ℃ temperature roasting 4～8 hours, with Fe
2O
3, CuO, GeO
2The carrier of active ingredient is promotor.
In manufacture method of the present invention, preferentially select for use particle diameter less than 1mm, contain mordenite and be no less than 60% natural zeolite, described iron oxysalt can be FeSO
4, described copper oxysalt can be Cu (NO
3)
2
With HCl or CaCl
2During the aqueous solution soaking natural zeolite, preferred version is for soaking at least 4 times, and at least 1 hour at every turn, new soln was changed in each back of soaking, and was submerged with zeolite to be degree.
In this manufacture method, the iron oxysalt, copper oxysalt and the germanic acid saturated solution weight ratio that are used to spray impregnated carrier are followed successively by 25-35: 15-30: 1 o'clock, effect was better.
It is 105 ℃-110 ℃ that this manufacture method is further recommended the drying treatment temperature, and maturing temperature is 580 ℃-600 ℃ in air atmosphere.
Manufacture method raw material sources of the present invention are convenient, operation is simple, do not need specific equipment, the coal combustion catalyst promoting agent of being produced is active high, consumption is few, energy consumption is low, and amount that can weight ratio 0.01～0.5% is added in all kinds of coal combustion catalysts, and the interpolation that makes catalyzer accounts for 4～10% of coal amount when not containing promotor and reduces to 0.2-0.5%.Thereby reduce slag amount and NO
x, SO
xDeng harmful gas emission.
Further specify method of the present invention and utilize the effect of the promotor that the present invention makes below in conjunction with embodiment.
Embodiment 1 particle diameter is less than 1mm, and the natural zeolite of mordenite content 〉=60% is used 0.1NCaCl
2Aqueous solution soaking 4 times, each 1 hour, new soln was changed in each back of soaking, and gained CaN type carrier is put into kneader, measures its water-intake rate, determines ferrous sulfate (FeSO
4), cupric nitrate (Cu (NO
3)
2) after three kinds of saturated solution total amounts of germanic acid, be followed successively by 150: 100: 1 ratio in three kinds of saturated solution weight ratios, immersion liquid carrier successively, 120 ℃ of ultra red ray dryings, 580 ℃ of roastings 4 hours obtain promotor 1.
Embodiment 2. the same routine natural zeolites soak repeatedly with the 1NHCl aqueous solution, and gained HN type carrier is put into kneader, measure its water-intake rate after, press FeSO
4, Cu (NO
3)
2, H
2GeO
3The saturated solution weight ratio is followed successively by 32: 28: 1 ratio impregnated carrier successively, 110 ℃ of infrared dryings, and 580 ℃ of roastings 5 hours obtain promotor 2.
Embodiment 3. puts into kneader with CaN type carrier among the embodiment 1, behind the mensuration water-intake rate, presses FeSO
4, Cu (NO
3)
2, H
2GeO
3The saturated solution weight ratio is followed successively by 29: 26: 1 ratio impregnated carrier, 106 ℃ of infrared dryings, and 600 ℃ of roastings 4.5 hours obtain promotor 3.
Now with by weight soda ash 60%, sodium-acetate 17%, Manganse Dioxide 3%, the composition that Wingdale 20% mixes be as combustioncatalysts, and ratio that can 0.3% adds promotor 1; Perhaps add promotor 2, perhaps add promotor 3 with 0.15% ratio with 0.2% ratio.Behind the catalyzer with 0.2% the above-mentioned adding promotor of ratio blending in the bunker coal, catch fire in the stove in advance, the coal seam is loose smooth, and combustion intensification, flame peak temperature improve 150 ℃, boiler slag carbon content and descend 6.5%, NO
x, SO
xQuantity discharged reduces by 50%, and boiler thermal output improves 10% at least, and coal saving rate reaches 15% at least.
Claims (5)
1. the manufacture method of a coal combustion catalyst promoting agent comprises the steps:
(1) with 0.5-5NHCl or 0.05-0.5NCaCl
2The aqueous solution soaking particle diameter less than 1mm, contain mordenite and be no less than 60% natural zeolite, carry out ion-exchange, obtain HN or CaN type carrier, this carrier is put into kneader;
(2) with deionized water respectively with FeSO
4, Cu (NO
3)
2Be mixed with saturated solution with germanic acid, measure the carrier water-intake rate, determine the saturated solution total amount according to water-intake rate, weight ratio is followed successively by 1～200: 1～150: three kinds of saturated solutions of 1 constantly flood with vaporific being sprayed onto on the carrier that is just stirring in kneader;
(3) with 60 ℃ of-120 ℃ of temperature the carrier drying through dipping is handled;
(4) in air atmosphere to the carrier after the drying treatment with 500 ℃-700 ℃ temperature roasting 4-8 hour, with Fe
2O
3, CuO, GeO
2The carrier of active ingredient is promotor.
2. manufacture method as claimed in claim 1 is characterized by with HCl or CaCl
2The described natural zeolite of aqueous solution soaking soaks 4 times at least, and at least 1 hour at every turn, new soln was changed in each back of soaking, and is submerged with zeolite to be degree.
3. manufacture method as claimed in claim 1 or 2 is characterized by the FeSO that is used to spray impregnated carrier
4, Cu (NO
3)
2Be followed successively by 25-35 with germanic acid saturated solution weight ratio: 15-30: 1.
4. manufacture method as claimed in claim 1 or 2, it is characterized by described drying treatment temperature is 105 ℃-110 ℃, maturing temperature is 580 ℃-600 ℃ in air atmosphere.
5. manufacture method as claimed in claim 3, it is characterized by described drying treatment temperature is 105 ℃-110 ℃, maturing temperature is 580 ℃-600 ℃ in air atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109014A CN1064394C (en) | 1997-01-23 | 1997-01-23 | Method for making coal combustion catalyst promoting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109014A CN1064394C (en) | 1997-01-23 | 1997-01-23 | Method for making coal combustion catalyst promoting agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1167138A CN1167138A (en) | 1997-12-10 |
| CN1064394C true CN1064394C (en) | 2001-04-11 |
Family
ID=5170840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109014A Expired - Fee Related CN1064394C (en) | 1997-01-23 | 1997-01-23 | Method for making coal combustion catalyst promoting agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064394C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465510C (en) * | 2004-05-24 | 2009-03-04 | 雅富顿公司 | Additive-induced control of nox emissions in a coal burning utility furnace |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072703C (en) * | 1998-07-20 | 2001-10-10 | 中国科学院山西煤炭化学研究所 | Method for direct liquefaction of coal using FeSOX as presoma of catalyst therefor |
| KR101016525B1 (en) * | 2003-10-10 | 2011-02-24 | 엘지디스플레이 주식회사 | In plane switching mode liquid crystal display device |
| US7162960B2 (en) * | 2004-01-08 | 2007-01-16 | Fuel Tech, Inc. | Process for reducing plume opacity |
| CN105602640B (en) * | 2016-02-24 | 2018-09-14 | 太原理工大学 | The potassium feldspar compound additive and preparation method of reduction domestic coke ignition temperature and application |
| CN107177388A (en) * | 2017-05-18 | 2017-09-19 | 中国矿业大学(北京) | A kind of low VOC lustration types quick burning charcoal for roasting and preparation method thereof |
| CN107384504B (en) * | 2017-08-22 | 2020-11-03 | 辽宁久益节能环保有限公司 | Combustion improver and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824441A (en) * | 1987-11-30 | 1989-04-25 | Genesis Research Corporation | Method and composition for decreasing emissions of sulfur oxides and nitrogen oxides |
| CN1121951A (en) * | 1994-06-08 | 1996-05-08 | 张忠海 | Combustion adjuvant and fuel contg. it |
-
1997
- 1997-01-23 CN CN97109014A patent/CN1064394C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824441A (en) * | 1987-11-30 | 1989-04-25 | Genesis Research Corporation | Method and composition for decreasing emissions of sulfur oxides and nitrogen oxides |
| CN1121951A (en) * | 1994-06-08 | 1996-05-08 | 张忠海 | Combustion adjuvant and fuel contg. it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465510C (en) * | 2004-05-24 | 2009-03-04 | 雅富顿公司 | Additive-induced control of nox emissions in a coal burning utility furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1167138A (en) | 1997-12-10 |
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