CN108295649A - A kind of organic waste-gas purification method - Google Patents
A kind of organic waste-gas purification method Download PDFInfo
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- CN108295649A CN108295649A CN201810026690.6A CN201810026690A CN108295649A CN 108295649 A CN108295649 A CN 108295649A CN 201810026690 A CN201810026690 A CN 201810026690A CN 108295649 A CN108295649 A CN 108295649A
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- organic exhaust
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- 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
- B01D53/04—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 with stationary adsorbents
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
Abstract
The present invention provides a kind of purification methods of organic exhaust gas.This approach includes the following steps:(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 190~220 DEG C, enters back into passing away；(2) filter screen is installed at organic exhaust gas passing away both ends；(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.Wherein, the purifying tube is cellular, including aluminium oxide, diatomite, FeOCl, noble metal active component Pd and Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3And Cr2O3.Compared with prior art, the purification method flow of organic exhaust gas of the present invention is short, and equipment is simple and is readily disassembled replacement, and purified treatment effect is good, the processing especially suitable for various industrial organic exhaust gas.
Description
Technical field
The invention belongs to air purification fields, and in particular to a kind of purification method of organic exhaust gas.
Background technology
Currently, in the production process of the industries such as petrochemical industry, tin graphed sheet tank, application, printing, doctorization, can all discharge benzene,
The volatile organic waste gas such as toluene, ethyl acetate, acetone, dichloroethanes, greatly polluted environment, be detrimental to health,
Through gradually having obtained government, enterprise and the concern of the common people, it is necessary to take measures effectively to be administered.
Mainly there are absorption method, adsorption/desorption method, heating power burning method, accumulation of heat to burn the administering method of volatile organic waste gas
Burning method, catalytic oxidation etc., and since the reaction temperature needed for catalytic oxidation cleaning organic waste gas is low, organic pollution it is net
Change efficient, operating cost is few, therefore is more and more widely used.But current VOCs treatment effect is simultaneously paid no attention to
Think, targetedly not only type is few for cleanser, is required for matching with complicated purifier greatly, and otherwise its purification efficiency is not
Height limits the development of organic waste-gas purification technology.
Invention content
The purpose of the invention is to overcome the shortcomings of above-mentioned background technology, a kind of purification method of organic exhaust gas is provided.
To achieve the object of the present invention, the purification method of organic exhaust gas of the present invention includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 190~220 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, including aluminium oxide, diatomite, FeOCl, noble metal active component Pd
With Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3With
Cr2O3。
In the present invention, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer.
In the present invention, organic exhaust gas input end installs ceramic fibre filter screen, by the cleaned gas vent of purifying tube
End installation activated charcoal strainer.
In the present invention, aluminium oxide, diatomite, FeOCl account for the 30%~45% of purifying tube gross mass, 15% respectively
~25%, 25%~35%.
In the present invention, the Pd and Pt account for the 0.13%~0.16% of purifying tube gross mass, the mass ratio of wherein Pd and Pt
It is 5：1~6：1.
In the present invention, the alumina sol accounts for the 3%~4% of purifying tube gross mass.
In the present invention, the alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、
Cr2O3Mass ratio be 6：1~2：1~2：1~2：0.5~1：0.3~0.4：0.5~0.8：0.6~0.9.
In the present invention, the grain size of nano aluminium oxide is 260~340nm in the nano alumina sol.
Preferably, organic exhaust gas first passes through heat exchanger and is preheating to 210 DEG C and enters back into passing away in step (1).
In the present invention, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl
It prepares in proportion, mechanical presses are filled at cylinder-shaped thin wall honeycomb, and it is small that 1~2 is roasted at 900 DEG C after dry at 130~150 DEG C
When, it is cooling after dipping Nano silica sol, noble metal active component Pd, Pt, 380 DEG C roastings 2 1~2 hour dry through 110 DEG C
~3 hours, then apply alumina sol, 90% ethyl orthosilicate, SmVO on surface4、C3N4、CeO2、Pr6O11、Y2O3、
Cr2O3, 2~3 hours dry through 100 DEG C, 240 DEG C roast 3~4 hours.
Compared with prior art, organic waste-gas purification method flow of the invention is short, and equipment is simple and is readily disassembled replacement,
Purified treatment effect is good, the processing especially suitable for various industrial organic exhaust gas.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
Unless otherwise noted, it is dried in the preparation method of following embodiment purifying tube and roasting time is according to invention content
Institute takes median to range.
Embodiment 1：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 2：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 190 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 3：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 220 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 4：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 180 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 5：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 230 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 6：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, FeOCl, noble metal active component
Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3With
Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, FeOCl account for the 48% of purifying tube gross mass, 40% respectively；The Pd and Pt accounts for purification
The mass ratio of the 0.15% of cylinder gross mass, wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube gross mass
3.5%；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Mass ratio be 6：
1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：Aluminium oxide, FeOCl are prepared in proportion
Good, mechanical presses are filled at cylinder-shaped thin wall honeycomb, are roasted at 900 DEG C after dry at 140 DEG C, are impregnated nano silicasol after cooling
Glue, noble metal active component Pd, Pt, it is dry later, roast, then surface apply alumina sol, 90% ethyl orthosilicate,
SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 7：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube be it is cellular, the purifying tube include aluminium oxide, diatomite, noble metal active component Pd,
Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite account for the 53% of purifying tube gross mass, 35% respectively；It is total that the Pd and Pt accounts for purifying tube
The mass ratio of the 0.15% of quality, wherein Pd and Pt is 11：2；The alumina sol accounts for the 3.5% of purifying tube gross mass；Oxygen
Change Aluminum sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Mass ratio be 6：1.5：1.5：
1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：Aluminium oxide, diatomite are prepared in proportion, machine
Tool is squeezed into cylinder-shaped thin wall honeycomb and fills, and is roasted at 900 DEG C after dry at 140 DEG C, and Nano silica sol, your gold impregnated after cooling
Belong to active component Pd, Pt, dry later, roasting, then apply alumina sol, 90% ethyl orthosilicate, SmVO on surface4、
C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 8：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11With
Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Cr2O3Mass ratio be
6：1.5：1.5：1.5：0.8：0.35：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Cr2O3。
Embodiment 9：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、CeO2、Pr6O11、Y2O3With
Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、CeO2、Pr6O11、Y2O3、Cr2O3Mass ratio be
6：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 10：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 2.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 11：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 300nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, your gold impregnated after cooling
Belong to active component Pd, Pt, dry later, roasting, then apply alumina sol, 90% ethyl orthosilicate, SmVO on surface4、
C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Embodiment 12：
The organic waste-gas purification method of the present embodiment includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 210 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away.
Wherein, the purifying tube is cellular, which includes aluminium oxide, diatomite, FeOCl, noble metal work
Property component Pd, Pt, Nano silica sol, nano alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、
Y2O3And Cr2O3。
Wherein, the filter screen of the both ends installation is ceramic fibre filter screen and activated charcoal strainer, organic exhaust gas import
Installation ceramic fibre filter screen in end installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
Wherein, aluminium oxide, diatomite, FeOCl account for 38%, 20%, the 30% of purifying tube gross mass respectively；It is described
Pd and Pt accounts for the 0.15% of purifying tube gross mass, and the mass ratio of wherein Pd and Pt are 11：2；The alumina sol accounts for purifying tube
The 3.5% of gross mass；Alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Quality
Than being 6：1.5：1.5：1.5：0.8：0.35：0.65：0.75.
Wherein, the grain size of nano aluminium oxide is 400nm in the nano alumina sol.
Wherein, the preparation method of the purifying tube includes the following steps：By aluminium oxide, diatomite, FeOCl press than
Example prepares, and mechanical presses are filled at cylinder-shaped thin wall honeycomb, is roasted at 900 DEG C after dry at 140 DEG C, impregnates nanometer after cooling
Ludox, noble metal active component Pd, Pt, dry later, roasting, then in surface coating alumina sol, 90% positive silicic acid
Ethyl ester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3。
Assessment of cleaning efficiency：
Volatile organic waste gas (benzene, dichloro are simulated with air benzene mixed, dichloroethanes, epoxychloropropane and ethyl acetate
The concentration of ethane, epoxychloropropane and ethyl acetate is respectively 3000mg/m3、3000mg/m3、3000mg/m3、4000mg/m3),
Air speed 20000h-1, by the method cleaning organic waste gas of each embodiment, wherein purify tube length 100mm, diameter in each embodiment
40mm is reacted front and back volatile organic matter concentration and is analyzed using gas-chromatography (FID), and the conversion ratio of volatile organic waste gas is seen below
Table.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of purification method of organic exhaust gas, which is characterized in that the purification method of the organic exhaust gas includes the following steps:
(1) organic exhaust gas, which first passes through heat exchanger and is preheating to 190~220 DEG C, enters back into passing away；
(2) filter screen is installed at organic exhaust gas passing away both ends；
(3) the cylindrical cleaning cylinder that diameter is less than passing away diameter is inserted into organic exhaust gas passing away, wherein described net
It is cellular to change cylinder, including aluminium oxide, diatomite, FeOCl, noble metal active component Pd and Pt, Nano silica sol, receiving
Rice alumina sol, 90% ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3And Cr2O3。
2. the purification method of organic exhaust gas according to claim 1, which is characterized in that the filter screen of both ends installation is
Ceramic fibre filter screen and activated charcoal strainer.
3. the purification method of organic exhaust gas according to claim 2, which is characterized in that the organic exhaust gas input end installation
Ceramic fibre filter screen installs activated charcoal strainer by the cleaned gas outlet end of purifying tube.
4. the purification method of organic exhaust gas according to claim 1, which is characterized in that aluminium oxide, diatomite, oxygroup chlorination
Iron accounts for 30%~45%, 15%~25%, the 25%~35% of purifying tube gross mass respectively.
5. the purification method of organic exhaust gas according to claim 1, which is characterized in that the Pd and Pt accounts for the total matter of purifying tube
The mass ratio of the 0.13%~0.16% of amount, wherein Pd and Pt are 5：1~6：1.
6. the purification method of organic exhaust gas according to claim 1, which is characterized in that the alumina sol accounts for purifying tube
The 3%~4% of gross mass.
7. the purification method of organic exhaust gas according to claim 6, which is characterized in that the alumina sol, 90%
Ethyl orthosilicate, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3Mass ratio be 6：1~2：1~2：1~2：0.5~1：0.3
~0.4：0.5~0.8：0.6~0.9.
8. the purification method of organic exhaust gas according to claim 1, which is characterized in that received in the nano alumina sol
The grain size of rice aluminium oxide is 260~340nm.
9. the purification method of organic exhaust gas according to claim 1, which is characterized in that the preparation method packet of the purifying tube
Include following steps：Aluminium oxide, diatomite, FeOCl are prepared in proportion, mechanical presses are filled at cylinder-shaped thin wall honeycomb,
It is roasted 1~2 hour at 900 DEG C after drying at 130~150 DEG C, impregnates Nano silica sol, noble metal active component Pd after cooling
And Pt, it is 1~2 hour dry through 110 DEG C, 380 DEG C roast 2~3 hours, then are applying alumina sol, 90% just on surface
Silester, SmVO4、C3N4、CeO2、Pr6O11、Y2O3、Cr2O3, 2~3 hours dry through 100 DEG C, 240 DEG C roast 3~4 hours.
10. the purification method of organic exhaust gas according to claim 1, which is characterized in that organic exhaust gas first leads in step (1)
Over-heat-exchanger is preheating to 210 DEG C and enters back into passing away.
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