CN104773848A - Organic-phosphonate-based organic energy-saving and emission-reduction agent for industrial boiler - Google Patents
Organic-phosphonate-based organic energy-saving and emission-reduction agent for industrial boiler Download PDFInfo
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- CN104773848A CN104773848A CN201510217046.3A CN201510217046A CN104773848A CN 104773848 A CN104773848 A CN 104773848A CN 201510217046 A CN201510217046 A CN 201510217046A CN 104773848 A CN104773848 A CN 104773848A
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Abstract
The invention discloses an organic-phosphonate-based organic energy-saving and emission-reduction agent for an industrial boiler. The organic-phosphonate-based organic energy-saving and emission-reduction agent comprises, by mass, 15%-25% of 1-Hydroxyethylidene-1,1-diphosphonic acid, 10%-15% of butane phosphate-1,2,4-tricarboxylic acid, 5%-10% of maleic acid-acrylic copolymer, 2%-3% of morpholine, 1%-2% of diethylhydroxylamine, 0.2 %-0.8% of tannin alkali metal salt and the balance water. The organic-phosphonate-based organic energy-saving and emission-reduction agent is free of inorganic chemical ingredients, all the components in the formula are organic, the water dissolved solid matter, the blowdown rate and the heating surface scaling rate of the industrial boiler are lowered effectively, and the chemical cleaning period of the boiler is prolonged; the agent is high in scale inhibition corrosion inhibition efficiency, small in feeding quantity, free of poison, low in cost, wide in ingredient source, stable in high-temperature performance, capable of adjusting the return condensate quality and lowering the return water system corrosion rate and suitable for industrial boilers of various types and various supply water quality conditions, and the boiler operation water quality index of the boilers is not affected in use.
Description
Technical field
The present invention relates to a kind of energy-saving and emission-reduction agent, specifically, relate to the organic energy-saving and emission-reduction agent of a kind of Industrial Boiler based on organic phosphonate.
Background technology
Industrial Boiler is important industrial thermal hardware, also be high energy consumption special equipment, be widely used in industry and the fields such as chemical industry, papermaking, weaving, machinery, food, closely related with the life of the people, its security run and economy are directly connected to the security developments of economic society.China has Industrial Boiler more than 620,000 platform at present, the nearly 1,000,000,000 tons of standard coals of annual consumption.Current, industrial boilers in China thermo-efficiency is generally low than western developed country by 10% ~ 15%, and one of them major cause is exactly the fouling that causes of boiler water quality and blowdown thermosteresis problem.According to statistics, the boiler safety accident that annual China causes because of water treatment problems accounts for about 30% of boiler breakdowns total amount.Boiler water processing had both been related to the safety of boiler, was also related to the energy-saving and cost-reducing of boiler.Generally acknowledge that the most effective Industrial Boiler water treatment mode is that the outer sofening treatment of pot adds operation medicine adding quality regulate in pot at present in the world.Industrial Boiler more than 95% is all make supplementary feed with one-level softening water, and is not all equipped with deoxygenator.Softening water just eliminates the hardness impurity (Ca in former water
2+and Mg
2+deng), other impurity such as anionic impurity and gaseous impurities all do not remove.Many softening equipment operation and management levels are lower, and equipment healthy state is poor, and effluent characteristics is low, and residual harness is high.Deaeration plant rate of utilization is low, and more than 85% boiler feedwater oxygen level is defective.This causes the softening water of high residual harness and high-solubility oxygen content just to enter boiler as supplementary feed.Therefore, in industrial boiler operation process, heating surface fouling, etching problem are generally relatively serious, condensate system erosion rate and blow-down rate high, cause boiler thermal output to decline and heated surface corrosion booster.On the-spot investigation shows, the industrial boiler system of more than 90% all exists fouling in various degree and etching problem.If the incrustation scale of the raw 1mm of heating surface knot in industrial boiler operation process, boiler thermal output can reduce by 5% ~ 8%.
In pot water, add the medicament with corrosion-mitigation scale-inhibition function in operational process is one of major way preventing Industrial Boiler corrosion and scaling.Add in a lot of applying unit operational process at present as the inorganic inhibitors such as tertiary sodium phosphate, sodium hydroxide, sodium carbonate, S-WAT, Sodium salts humic acids can control fouling and the etching problem of boiler to a certain extent, but scale inhibition and inhibition efficiency lower.What the more important thing is the impurity generation in these medicaments and feedwater is all grain slag and partial salts material, and add the dissolved solid of feedwater, basicity raises, and this must drain by strengthening draining of boiler, and this causes again the loss of boiler heat.And these medicaments can not be used for the direct current of current widespread use and tubular Industrial Boiler.
Organic medicament is also used on Industrial Boiler at present, but is mostly medicament or the mixing of simple several medicament of single component, and science, heat resistance are poor to there is proportioning, and synergy is limited to be waited not enough, and scale inhibitor rate is often about 80%.
Summary of the invention
Instant invention overcomes shortcoming of the prior art, provide a kind of organic energy-saving and emission-reduction agent of the Industrial Boiler based on organic phosphonate according to scientific matching development, scale inhibition performance reaches more than 95%, corrosion inhibition rate reaches 99%, boiler blowdown rate reduces by 30%, ensures that boiler water quality index meets GB/T1576-2008 requirement.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The organic energy-saving and emission-reduction agent of a kind of Industrial Boiler based on organic phosphonate, comprise the raw material of following mass percent: 15% ~ 25% hydroxy ethylene diphosphonic acid, 10% ~ 15% 2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid, 5% ~ 10% maleic acid-acrylic acid copolymer, 2% ~ 3% morpholine, 1% ~ 2% diethyl hydroxylamine, 0.2% ~ 0.8% tannin alkaline metal salt, water be surplus.
Further, comprise the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 15%, the 2-phosphonic acid butane-1 of 10%, 2,4-tri methylene phosphonic acid, 5% maleic acid-acrylic acid copolymer, 2% morpholine, the diethyl hydroxylamine of 1%, tannin alkaline metal salt, the water of 0.2% be surplus; Or, it is made up of the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 20%, the 2-phosphonic acid butane-1 of 13%, 2,4-tri methylene phosphonic acid, 7% maleic acid-acrylic acid copolymer, 2.5% morpholine, the diethyl hydroxylamine of 1.5%, tannin alkaline metal salt, the water of 0.6% be surplus.
Further, comprise the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 25%, the 2-phosphonic acid butane-1 of 15%, 2,4-tri methylene phosphonic acid, 10% maleic acid-acrylic acid copolymer, 3% morpholine, the diethyl hydroxylamine of 2%, tannin alkaline metal salt, the water of 0.8% be surplus.
Compared with prior art, the invention has the beneficial effects as follows:
(1) there is no inorganic anti-incrustation corrosion inhibitor composition, all-organic formula, effectively reduce feedwater dissolved solid, boiler blowdown rate and heating surface scaling rate, the prolonged boiler matting cycle;
(2) scale inhibitor efficiency is high, adding less, nontoxic, cost is low, ingredient origin is extensive, stable performance under high temperature, is applicable to the various type of furnace and various supplementary feed condition of water quality, does not affect boiler operatiopn water-quality guideline.
(3) regulate condensate return water quality, reduce return water system erosion rate, solve backwater iron contamination excessive problem.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1:
An Industrial Boiler energy-saving and emission-reduction agent based on organic phosphonate, its table composed as follows of filling a prescription:
Table 1: the formula of energy-saving and emission-reduction agent of the Industrial Boiler based on organic phosphonate forms
| Raw material | Mass percent |
| Hydroxy ethylene diphosphonic acid | 15％ |
| 2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid | 10％ |
| Maleic acid-acrylic acid copolymer | 5％ |
| Morpholine | 2％ |
| Diethyl hydroxylamine | 1％ |
| Tannin alkaline metal salt | 0.2％ |
| Water | Surplus |
Wherein, hydroxy ethylene diphosphonic acid, high temperature resistant, good in oxidation resistance, has scale inhibitor effect, the scale effect that the lattice distortion effect mainly playing it in this patent produces and the descale effect that regeneration has from release film effect.
2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid, there is the structural performance of phosphonic acids and carboxylic acid, under high temperature scale inhibition and corrosion inhibition good, mainly utilize its scale-inhibiting properties and the synergy good with hydroxy ethylene diphosphonic acid in this patent, utilize simultaneously it chelating properties play run descale effect.
Maleic acid-acrylic acid copolymer, there is very strong dissemination, thermostability is high, can use under 300 DEG C of hot conditionss, with hydroxy ethylene diphosphonic acid etc., there is good consistency and synergistic function, mainly utilize its scale effect in this patent, generate with becoming dirty material the ionogen being dissolved in water, there is energy-conserving action.
Morpholine, it is a kind of volatile alkali, mainly utilizes boiling characteristics to regulate condensation return water system pH value in this patent, reduce return water system erosion rate and iron contamination content, reduce to enter iron contamination in feedwater, simultaneously boiler water adjustment pH value, reduce boiler blowdown rate, play emission reduction effect.
Diethyl hydroxylamine, a kind of organic oxygen scavenger, eliminates the oxygen in feedwater and then reduces oxygen corrosion, also contributes to boiler surface and water-steam system metallic surface generation protective oxide layer simultaneously, reduces stove Water oxidize product assay, reduce boiler blowdown rate.
Tannin alkaline metal salt is as organic, be lowered into dirty small-crystalline by charge effect grow up and reduce with heating surface in conjunction with probability, become crystal grain in tiny water in suspension and drained by blowdown, reduce the scaling rate of boiler surface, ensure heating surface heat-transfer effect and boiler thermal output.
Embodiment 2:
An Industrial Boiler energy-saving and emission-reduction agent based on organic phosphonate, its table composed as follows of filling a prescription:
Table 2: the formula of energy-saving and emission-reduction agent of the Industrial Boiler based on organic phosphonate forms
| Raw material | Mass percent |
| Hydroxy ethylene diphosphonic acid | 20％ |
| 2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid | 13％ |
| Maleic acid-acrylic acid copolymer | 7％ |
| Morpholine | 2.5％ |
| Diethyl hydroxylamine | 1.5％ |
| Tannin alkaline metal salt | 0.6％ |
| Water | Surplus |
Embodiment 3:
An Industrial Boiler energy-saving and emission-reduction agent based on organic phosphonate, its table composed as follows of filling a prescription:
Table 3: the formula of energy-saving and emission-reduction agent of the Industrial Boiler based on organic phosphonate forms
| Raw material | Mass percent |
| Hydroxy ethylene diphosphonic acid | 25％ |
| 2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid | 15％ |
| Maleic acid-acrylic acid copolymer | 10％ |
| Morpholine | 3％ |
| Diethyl hydroxylamine | 2％ |
| Tannin alkaline metal salt | 0.8％ |
| Water | Surplus |
The preparation method of Industrial Boiler organic inhibition dirty-proof of the present invention agent is described below again:
Under room temperature, by water-soluble for various raw material, remove mixing after suspended substance and mechanical dispersed with stirring evenly, preparation method is the conventional techniques means in industry.
The using method of the Industrial Boiler energy-saving and emission-reduction agent based on organic phosphonate of the present invention is used to be: can directly utilize medicine system to join in stove water or in boiler feed water system, and make drug concentration be 10mg/L ~ 15mg/L (that is:, in the water of 1L, the quality containing the Industrial Boiler energy-saving and emission-reduction agent based on organic phosphonate of the present invention is 12mg ~ 15mg).
Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the organic energy-saving and emission-reduction agent of the Industrial Boiler based on organic phosphonate, it is characterized in that, comprise the raw material of following mass percent: 15% ~ 25% hydroxy ethylene diphosphonic acid, 10% ~ 15% 2-phosphonic acid butane-1,2,4-tri methylene phosphonic acid, 5% ~ 10% maleic acid-acrylic acid copolymer, 2% ~ 3% morpholine, 1% ~ 2% diethyl hydroxylamine, 0.2% ~ 0.8% tannin alkaline metal salt, water be surplus.
2. the organic energy-saving and emission-reduction agent of a kind of Industrial Boiler based on organic phosphonate according to claim 1, it is characterized in that, comprise the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 15%, the 2-phosphonic acid butane-1 of 10%, 2,4-tri methylene phosphonic acid, 5% maleic acid-acrylic acid copolymer, 2% morpholine, the diethyl hydroxylamine of 1%, tannin alkaline metal salt, the water of 0.2% be surplus; Or, it is made up of the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 20%, the 2-phosphonic acid butane-1 of 13%, 2,4-tri methylene phosphonic acid, 7% maleic acid-acrylic acid copolymer, 2.5% morpholine, the diethyl hydroxylamine of 1.5%, tannin alkaline metal salt, the water of 0.6% be surplus.
3. the organic energy-saving and emission-reduction agent of a kind of Industrial Boiler based on organic phosphonate according to claim 1, it is characterized in that, comprise the raw material of following mass percent: the hydroxy ethylene diphosphonic acid of 25%, the 2-phosphonic acid butane-1 of 15%, 2,4-tri methylene phosphonic acid, 10% maleic acid-acrylic acid copolymer, 3% morpholine, the diethyl hydroxylamine of 2%, tannin alkaline metal salt, the water of 0.8% be surplus.
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Cited By (2)
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| CN106167305A (en) * | 2015-11-25 | 2016-11-30 | 天津市奔晟新材料科技开发有限公司 | The neutralizing amine protective agent of boiler and condensate system |
| CN113388456A (en) * | 2021-06-08 | 2021-09-14 | 安徽省复和利泰节能环保科技有限公司 | Medium-high pressure boiler anti-corrosion and scale-inhibiting cleaning agent and preparation method thereof |
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| CN113388456A (en) * | 2021-06-08 | 2021-09-14 | 安徽省复和利泰节能环保科技有限公司 | Medium-high pressure boiler anti-corrosion and scale-inhibiting cleaning agent and preparation method thereof |
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Application publication date: 20150715 |