CN105944657B - Biochemical preparation for administering boiler smoke - Google Patents

Biochemical preparation for administering boiler smoke Download PDF

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Publication number
CN105944657B
CN105944657B CN201610413721.4A CN201610413721A CN105944657B CN 105944657 B CN105944657 B CN 105944657B CN 201610413721 A CN201610413721 A CN 201610413721A CN 105944657 B CN105944657 B CN 105944657B
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stirring
activated carbon
nano
deionized water
mesh
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CN105944657A (en
Inventor
张传森
丁兆堂
李晓永
许传娟
徐亚娟
张建国
高启超
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INNER MONGLIA FUFENG BIOLOGICAL TECHNOLOGY Co Ltd
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INNER MONGLIA FUFENG BIOLOGICAL TECHNOLOGY Co Ltd
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    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/046—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide

Abstract

The invention belongs to technical field of biochemistry, the biochemical preparation for administering boiler smoke is disclosed, is prepared according to following technique：Step 1）Broken and grinding, step 2）Stirring, filtering, drying and crushing, step 3）It impregnates and washes, step 4）Stirring, evaporation, roasting and crushing, step 5）Mixing and stirring.Biochemical preparation of the present invention has both the function of desulphurization denitration dedusting, and adsorption efficiency is high, and preparation process is simple.

Description

Biochemical preparation for administering boiler smoke
Technical field
The invention belongs to technical field of biochemistry, and in particular to the biochemical preparation for administering boiler smoke.
Background technology
Boiler smoke is the mixture of gas and flue dust, is the main reason for polluting residential block air.The ingredient of flue gas is very Complexity, gas include water vapour, sulfur dioxide, hydrocarbon and oxynitrides etc., flue dust include fuel ash content, Coal grain, oil droplet and high-temperature split product etc..Therefore flue gas is the combined pollution of a variety of poisonous substances to the pollution of environment.Flue dust is to people The harmfulness of body is related with the size of particle, and it is that diameter is less than 10 microns of floating dust to generate the mostly of harm to human body, especially with 1-2.5 microns of floating dust harmfulness is maximum.
China is an Industrial Boiler production and uses big country.But China's coal-burned industrial boiler situation makes people worried, About 10,000,000 tons of the coal fire discharged sulfur dioxide of Industrial Boiler in 2010, about 2,000,000 tons of oxynitrides, dust about 1,000,000 Ton, about 90,000,000 tons of waste residue is the second largest coal-smoke pollution source that China is only second to coal fired power generation；Wherein sulfur dioxide is dense Degree can reach every cubic metre of 50-200ug, and especially northerly Heavy industrial city pollution is even more serious.Currently, enterprise is to coal-fired dirty The control of dye object is concentrated mainly on dedusting, desulfurization and denitration.Flue gas desulfurization refers to and removes desulfuration from flue gas or other industrial waste gases Oxide (SO2 and SO3), denitration refers to the process of that denitrification is removed from combustion product gases.
Currently, have more company take up research can simultaneous SO_2 and NO removal dedusting preparation, there are also on product It sells in city；For most of preparation in the presence of the cost is relatively high, adsorbance is smaller, and stability is not high, cannot have both desulphurization denitration and remove The function of dirt, and in large-scale application, there are certain defects.In recent years, in environmental problem and energy crisis getting worse In the case of, goal in research is gradually transferred to exploitation adsorption efficiency height both at home and abroad, has both the new of the function of desulphurization denitration dedusting Proximate matter material administers flue gas.
Invention content
For overcome the deficiencies in the prior art, the present invention provides the biochemical preparations for administering boiler smoke.The present invention Biochemical preparation has both the function of desulphurization denitration dedusting, and adsorption efficiency is high, and preparation process is simple.
The present invention is realized by following scheme：
Biochemical preparation for administering boiler smoke is prepared according to following technique：
Step 1）Broken and grinding：Sepiolite is added in crusher and is crushed, then with calcirm-fluoride, alumine Mixing, then be ground, it is 100 target minreal matter powder to obtain grain size；Wherein, sepiolite, calcirm-fluoride and alumine Mass ratio is 5-7:3-5:2-3；
Step 2）Stirring, filtering, drying and crushing：By corn straw smashing, then sieve with 100 mesh sieve to obtain maize straw Powder is transferred in agitator tank, and cationic starch and deionized water are then added into agitator tank, is uniformly mixing to obtain suspension, Then step 1 is added）Gained powder, 500 turns/min stirs 10min, then stands 12 hours, and precipitation is collected by filtration, precipitation is set In 80 DEG C of drying, finally crushes and obtain the particle of 50 mesh, as component A；Wherein, corn stalk powder, cationic starch, step 1） Gained powder and the mass ratio of deionized water are 10-15:5-7:18-25:50-80；
Step 3）It impregnates and washes：The activated carbon for weighing 40 mesh is placed in container, and it is 20% then to add volume fraction Dilute nitric acid solution is advisable with not crossing, and is impregnated 6 hours, is then taken out activated carbon, is washed, spare；
Step 4）Stirring, evaporation, roasting and crushing：By step 3）Gained activated carbon, nano diatomite, nanometer titanium dioxide Titanium, nano zine oxide and deionized water are added sequentially in agitator tank, are heated while stirring, it is to be heated to 100 DEG C when, maintain 100 DEG C are continued to stir evaporable water, wait for moisture 5%（w/w）When, stop heating, cooled to room temperature, then 500 It is roasted 3 hours at DEG C, takes out, be ground into the particle of 20 mesh, as component B；Wherein, step 3）Gained activated carbon, nanometer diatom Soil, nano-titanium dioxide, nano zine oxide and deionized water mass ratio be 12-18:3-4:3-4:2-3:40-60；
Step 5）Mixing and stirring：By component A and component B according to 5-9:The mass ratio of 12-20 mixes, and stirs evenly, i.e., .
The advantageous effect that the present invention obtains includes mainly：
The present invention carries out surface modifying and decorating by adding cationic starch to sepiolite, calcirm-fluoride and alumine, So that powder carries charge, the adsorption capacity to dust is improved, additionally it is possible to so that product has certain electrostatic adsorption； The present invention to activated carbon by having carried out surface oxidation treatment, to improve the content of surface oxygen-containing acid group, enhancing The polarity on surface is more easy to absorption polar substances；Modified activated carbon contains a large amount of micropore, have strong adsorption function, to its into It has gone modification, so that the contact area of it and other substances is greatly increased, have good suction-operated to gas etc.；The present invention is logical The techniques such as immersion roasting are crossed, aperture number is increased, improves surface roughness and specific surface area, enhance adsorption capacity： Different material of the present invention uses different grain sizes, increases the specific surface area of compound；Biochemical preparation prepared by the present invention, compatibility Rationally, each raw material mutually cooperates with, and can reach preferable dust-removal and desulfurizing denitration effect；Invention also uses straw refuse works For raw material, cost is saved, improves the added value of industry of enterprise.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, having below in conjunction with the application Body embodiment more clearly and completely describes the present invention, it is clear that described embodiment is only the application one Divide embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making The every other embodiment obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Embodiment 1
Biochemical preparation for administering boiler smoke is prepared according to following technique：
Step 1）Broken and grinding：Sepiolite is added in crusher and is crushed, then with calcirm-fluoride, alumine Mixing, then be ground, it is 100 target minreal matter powder to obtain grain size；Wherein, sepiolite, calcirm-fluoride and alumine Mass ratio is 5:3:2；
Step 2）Stirring, filtering, drying and crushing：By corn straw smashing, then sieve with 100 mesh sieve to obtain maize straw Powder is transferred in agitator tank, and cationic starch and deionized water are then added into agitator tank, is uniformly mixing to obtain suspension, Then step 1 is added）Gained powder, 500 turns/min stirs 10min, then stands 12 hours, and precipitation is collected by filtration, precipitation is set In 80 DEG C of drying, finally crushes and obtain the particle of 50 mesh, as component A；Wherein, corn stalk powder, cationic starch, step 1） Gained powder and the mass ratio of deionized water are 10:5:18:50；
Step 3）It impregnates and washes：The activated carbon for weighing 40 mesh is placed in container, and it is 20% then to add volume fraction Dilute nitric acid solution is advisable with not crossing, and is impregnated 6 hours, is then taken out activated carbon, is washed, spare；
Step 4）Stirring, evaporation, roasting and crushing：By step 3）Gained activated carbon, nano diatomite, nanometer titanium dioxide Titanium, nano zine oxide and deionized water are added sequentially in agitator tank, are heated while stirring, it is to be heated to 100 DEG C when, maintain 100 DEG C are continued to stir evaporable water, wait for moisture 5%（w/w）When, stop heating, cooled to room temperature, then 500 It is roasted 3 hours at DEG C, takes out, be ground into the particle of 20 mesh, as component B；Wherein, step 3）Gained activated carbon, nanometer diatom Soil, nano-titanium dioxide, nano zine oxide and deionized water mass ratio be 12:3:3:2:40；
Step 5）Mixing and stirring：By component A and component B according to 5:12 mass ratio mixing, stir evenly to get.
Embodiment 2
Biochemical preparation for administering boiler smoke is prepared according to following technique：
Step 1）Broken and grinding：Sepiolite is added in crusher and is crushed, then with calcirm-fluoride, alumine Mixing, then be ground, it is 100 target minreal matter powder to obtain grain size；Wherein, sepiolite, calcirm-fluoride and alumine Mass ratio is 7:5:3；
Step 2）Stirring, filtering, drying and crushing：By corn straw smashing, then sieve with 100 mesh sieve to obtain maize straw Powder is transferred in agitator tank, and cationic starch and deionized water are then added into agitator tank, is uniformly mixing to obtain suspension, Then step 1 is added）Gained powder, 500 turns/min stirs 10min, then stands 12 hours, and precipitation is collected by filtration, precipitation is set In 80 DEG C of drying, finally crushes and obtain the particle of 50 mesh, as component A；Wherein, corn stalk powder, cationic starch, step 1） Gained powder and the mass ratio of deionized water are 15:7:25:80；
Step 3）It impregnates and washes：The activated carbon for weighing 40 mesh is placed in container, and it is 20% then to add volume fraction Dilute nitric acid solution is advisable with not crossing, and is impregnated 6 hours, is then taken out activated carbon, is washed, spare；
Step 4）Stirring, evaporation, roasting and crushing：By step 3）Gained activated carbon, nano diatomite, nanometer titanium dioxide Titanium, nano zine oxide and deionized water are added sequentially in agitator tank, are heated while stirring, it is to be heated to 100 DEG C when, maintain 100 DEG C are continued to stir evaporable water, wait for moisture 5%（v/v）When, stop heating, cooled to room temperature, then 500 It is roasted 3 hours at DEG C, takes out, be ground into the particle of 20 mesh, as component B；Wherein, step 3）Gained activated carbon, nanometer diatom Soil, nano-titanium dioxide, nano zine oxide and deionized water mass ratio be 18:4:4:3:60；
Step 5）Mixing and stirring：By component A and component B according to 9:20 mass ratio mixing, stir evenly to get.
Embodiment 3
The component of simulated flue gas：SO2For 1030mg/Nm3, NOx 509mg/Nm3, dust（2.5 μm of ＜）For 107mg/ Nm3, air speed 5000h-1, temperature is 120 DEG C, while preparation prepared by embodiment 1 being routed in fixed bed reactors, respectively The time of the out of stock dedusting of desulfurization is set as 30,60min, the out of stock dust removal efficiency of desulfurization is measured, is specifically shown in Table 1：
Table 1
Pollutant type SO2（mg/Nm3） NOx（mg/Nm3） Dust（mg/Nm3）
30min 107 51 15
60min 39 18 6
Conclusion：It is de- that the out of stock dust removal efficiency of preparation 30min desulfurization of inventive desulfurization denitration dust collecting can reach 90% or so, 60min The out of stock dust removal efficiency of sulphur can reach 95% or more.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that this A little descriptions are all exemplary, and are not limiting the scope of the invention.Those skilled in the art can be according to the present invention Spirit and principle various variants and modifications are made to the present invention, these variants and modifications are also within the scope of the invention.

Claims (2)

1. the biochemical preparation for administering boiler smoke,
It is characterized in that, the biochemical preparation is prepared according to following technique：
Step 1）Broken and grinding：Sepiolite is added in crusher and is crushed, it is then mixed with calcirm-fluoride, alumine It closes, then is ground, it is 100 target minreal matter powder to obtain grain size；Wherein, the matter of sepiolite, calcirm-fluoride and alumine Amount is than being 5-7:3-5:2-3；
Step 2）Stirring, filtering, drying and crushing：By corn straw smashing, then sieve with 100 mesh sieve to obtain corn stalk powder, It is transferred in agitator tank, cationic starch and deionized water is then added into agitator tank, is uniformly mixing to obtain suspension, then Step 1 is added）Gained powder, 500 turns/min stirs 10min, then stands 12 hours, and precipitation is collected by filtration, precipitation is placed in 80 DEG C drying, finally crush obtain the particle of 50 mesh, as component A；Wherein, corn stalk powder, cationic starch, step 1）Gained Powder and the mass ratio of deionized water are 10-15:5-7:18-25:50-80；
Step 3）It impregnates and washes：The activated carbon for weighing 40 mesh is placed in container, then adds dilute nitre that volume fraction is 20% Acid solution impregnates 6 hours, then takes out activated carbon, washes, spare；
Step 4）Stirring, evaporation, roasting and crushing：By step 3）Gained activated carbon, nano diatomite, nano-titanium dioxide, Nano zine oxide and deionized water are added sequentially in agitator tank, are heated while stirring, it is to be heated to 100 DEG C when, maintain 100 DEG C continue to stir evaporable water, when moisture is 5%, the moisture is mass content, stops heating, natural cooling It to room temperature, is then roasted 3 hours at 500 DEG C, takes out, be ground into the particle of 20 mesh, as component B；Wherein, step 3）Gained Activated carbon, nano diatomite, nano-titanium dioxide, nano zine oxide and deionized water mass ratio be 12-18:3-4:3-4: 2-3:40-60；
Step 5）Mixing and stirring：By component A and component B according to 5-9:The mass ratio of 12-20 mixes, stir evenly to get.
2. application of the biochemical preparation described in claim 1 in flue gas desulfurization desulfurization and dedusting.
CN201610413721.4A 2016-06-14 2016-06-14 Biochemical preparation for administering boiler smoke Active CN105944657B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6074620A (en) * 1993-02-05 2000-06-13 Rheinische Kalksteinwerke Gmbh Method for the cleaning of exhaust gas and prevention of explosions therein
CN104368238A (en) * 2013-08-12 2015-02-25 赵明贵 High efficient flue gas desulfurizer
CN104888739A (en) * 2015-06-28 2015-09-09 内蒙古阜丰生物科技有限公司 Preparation for treating fume produced by amino acid production process
CN105148873A (en) * 2015-09-01 2015-12-16 安徽省含山县天顺环保设备有限公司 Dust-removing and smoke-removing adsorbent
CN105597701A (en) * 2016-03-17 2016-05-25 杭州富阳高博信息技术服务有限公司 Adsorbent for boiler fume treatment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6074620A (en) * 1993-02-05 2000-06-13 Rheinische Kalksteinwerke Gmbh Method for the cleaning of exhaust gas and prevention of explosions therein
CN104368238A (en) * 2013-08-12 2015-02-25 赵明贵 High efficient flue gas desulfurizer
CN104888739A (en) * 2015-06-28 2015-09-09 内蒙古阜丰生物科技有限公司 Preparation for treating fume produced by amino acid production process
CN105148873A (en) * 2015-09-01 2015-12-16 安徽省含山县天顺环保设备有限公司 Dust-removing and smoke-removing adsorbent
CN105597701A (en) * 2016-03-17 2016-05-25 杭州富阳高博信息技术服务有限公司 Adsorbent for boiler fume treatment

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