CN109939703A - A kind of catalyst of the purification containing volatile organic compounds - Google Patents
A kind of catalyst of the purification containing volatile organic compounds Download PDFInfo
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- CN109939703A CN109939703A CN201910226621.4A CN201910226621A CN109939703A CN 109939703 A CN109939703 A CN 109939703A CN 201910226621 A CN201910226621 A CN 201910226621A CN 109939703 A CN109939703 A CN 109939703A
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Abstract
The present invention provides a kind of catalyst of the purification containing volatile organic compounds, the catalyst contains following raw material: palladium chloride, active carbon, iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio are 2-6:900-1100:2-5, and 15 wt.% solution of ferrous chloride additional amounts are just to flood remaining raw material.The catalyst reaction activity of purification exhaust gas containing VOCS of the present invention is high, and selectivity is good, and stability is good, and utilization rate is high, and exhaust gas qualified discharge reduces the generation of secondary pollution；Preparing catalyst is the small pellet type catalyst equal to 2cm of partial size, and even pore distribution contacts large specific surface area, is not easy to plug, substantially increases the removal rate of volatile organic compounds, long service life.
Description
Technical field
The invention belongs to environmental protection catalysis material and technical field of atmospheric pollution control, and in particular to a kind of purification is containing waving
The catalyst of hair property organic compounds.
Background technique
Volatile organic matter (Volatile Organic Compounds, hereinafter referred to as VOCs) is a series of volatile
And the general name, including alkane, alkene, aromatic hydrocarbon, alcohols, aldehydes, ketone, halogenated hydrocarbons etc. of inflammable toxic organic compound.
VOCs is a kind of important atmosphere pollution, has huge destruction to environment.Its harm shows themselves in that (1) type organic
It is most inflammable and explosive, there is toxicity and foul smell, to the irritating effect of people, make the internal organs of people and nervous system all can be by
Harm, or even people can be caused to be poisoned, generate " teratogenesis, carcinogenic, mutagenesis " phenomenon；(2) under the action of sunlight, VOCs and big
Photochemical reaction occurs for the NOx in gas, generates photochemical fog, also results in the appearance of greenhouse effects, cause the breathing of human body
Obstacle and respiratory disorder, while crop production reduction can be made；(3) with the O3 in atmosphere photochemical reaction can occur for VOCs, cause big
The O3 concentration on gas stratosphere upper layer is reduced, and forms Ozone hole, increases the radiation of ultraviolet light and earth heating.In view of
Serious harm of the VOCs to environmental and human health impacts, causes the great attention of the Chinese government, and the environmentally friendly Room is " atmosphere pollution is anti-
Control action plan " on the basis of (promulgated by the State Council (2013) 37), tailor " petrochemical industry volatile organic matter comprehensive improvement side
Case " (ring sends out (2014) No. 177).Various VOCs processing techniques, which are met the tendency of, gradually to be developed.
The technology path of VOCs processing is roughly divided into two kinds, i.e. recovery technology and destruction technology.Domestic petroleum chemical industry at present
The VOCs treatment process that industry generallys use is the segmented technology path of " condensation+absorption " or " absorption+absorption ", core mesh
Be that the oil gas released in the storage and transportational process to petrochemical industry recycles, to increase economic efficiency.However, side
The technology path of weight VOCs recycling is difficult to respond stringenter discharge standard again, thus by existing VOCs processing unit with can be with
The low-temperature catalytic oxidation technology that efficient depth destroys VOCs medium, which combines, will become the mainstream in future trend.
Current VOCs catalyst or there is activation temperature height, reaction temperature is high or anti-carbon deposition ability is weak leads to bed
The disadvantages of pressure drop is big.Present invention seek to address that prior art bottleneck, provides the VOCs catalysis of a kind of high purifying rate, high conversion
Agent.
Summary of the invention
The purpose of the present invention is to provide a kind of catalyst of the purification containing volatile organic compounds, solve current VOCs
Catalyst there are low-conversion, reaction temperature is high the disadvantages of.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of catalyst of the purification containing volatile organic compounds, the catalyst contain following raw material: palladium chloride, active carbon,
Iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio be 2-6:900-1100:2-5,15
Wt.% solution of ferrous chloride additional amount is just to flood remaining raw material.
Further, the catalyst contains following raw material: palladium chloride, active carbon, iron filings, 15wt.% solution of ferrous chloride,
Wherein palladium chloride, active carbon, iron filings weight ratio are 4:1000:4, and 15wt.% solution of ferrous chloride additional amount is just to flood remaining
Raw material.
It is a kind of purify the catalyst containing volatile organic compounds preparation method, in filter bag by palladium chloride, active carbon,
By weight being uniformly mixed, rear addition 15wt.% solution of ferrous chloride just floods remaining raw material, 5- is mixed iron filings raw material
After 10min, then dry at 75-95 DEG C in baking oven to get the small pellet type catalyst equal to 2cm of partial size.
Activated carbon particle size is small to be equal to 250 mesh.
The present invention has the advantages that
(1) the catalyst reaction activity of purification exhaust gas containing VOCS of the present invention is high, and selectivity is good, and stability is good, utilization rate
Height, exhaust gas qualified discharge reduce the generation of secondary pollution；Preparing catalyst is that the small graininess equal to 2cm of partial size is urged
Agent, even pore distribution contact large specific surface area, are not easy to plug, substantially increase the removal of volatile organic compounds
Rate, long service life.
(2) preparation method of the present invention, at low cost, small investment, simple process are dried only with a step, are consumed energy low,
Operating cost is low, and prepared catalyst utilization rate is high.
Specific embodiment
Embodiment 1
A kind of catalyst of the purification containing volatile organic compounds, the catalyst contain following raw material: palladium chloride, active carbon,
Iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio are 4kg:1000kg:4kg, 15wt.% chlorine
Changing ferrous iron solution additional amount is just to flood remaining raw material.
It is a kind of purify the catalyst containing volatile organic compounds preparation method, in filter bag by palladium chloride, active carbon,
By weight being uniformly mixed, rear addition 15wt.% solution of ferrous chloride just floods remaining raw material, is mixed iron filings raw material
After 6min, then dry at 85 DEG C in baking oven to get the small pellet type catalyst equal to 2cm of partial size.
Embodiment 2
A kind of catalyst of the purification containing volatile organic compounds, the catalyst contain following raw material: palladium chloride, active carbon,
Iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio are 2:900:2,15 wt.% frerrous chlorides
Solution additional amount is just to flood remaining raw material.
It is a kind of purify the catalyst containing volatile organic compounds preparation method, in filter bag by palladium chloride, active carbon,
By weight being uniformly mixed, rear addition 15wt.% solution of ferrous chloride just floods remaining raw material, is mixed iron filings raw material
After 5min, then dry at 75 DEG C in baking oven to get the small pellet type catalyst equal to 2cm of partial size.
Embodiment 3
A kind of catalyst of the purification containing volatile organic compounds, the catalyst contain following raw material: palladium chloride, active carbon,
Iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio are 6:1100:5,15 wt.% chlorinations
Ferrous iron solution additional amount is just to flood remaining raw material.
It is a kind of purify the catalyst containing volatile organic compounds preparation method, in filter bag by palladium chloride, active carbon,
By weight being uniformly mixed, rear addition 15wt.% solution of ferrous chloride just floods remaining raw material, is mixed iron filings raw material
After 10min, then dry at 95 DEG C in baking oven to get the small pellet type catalyst equal to 2cm of partial size.
Application Example
It is handled using the catalyst of embodiment 1-3 preparation containing VOCs exhaust gas, comparing result is as follows before and after the processing by VOCs
Shown in table:
Catalyst produced by the invention has significant removal rate for all kinds of volatile organic contaminants it can be seen from table,
Applicability is wide.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (3)
1. a kind of catalyst of the purification containing volatile organic compounds, it is characterised in that: the catalyst contains following raw material: chlorine
Change palladium, active carbon, iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings weight ratio are 2-6:900-
1100:2-5,15 wt.% solution of ferrous chloride additional amounts are just to flood remaining raw material.
2. a kind of catalyst of the purification containing volatile organic compounds according to claim 1, it is characterised in that: described to urge
Agent contains following raw material: palladium chloride, active carbon, iron filings, 15wt.% solution of ferrous chloride, wherein palladium chloride, active carbon, iron filings
Weight ratio is 4:1000:4, and 15wt.% solution of ferrous chloride additional amount is just to flood remaining raw material.
3. a kind of preparation method for purifying the catalyst containing volatile organic compounds as described in claim 1, feature exist
In: palladium chloride, active carbon, iron filings raw material is uniformly mixed by weight, the rear addition 15wt.% solution of ferrous chloride in filter bag,
Remaining raw material is just flooded, after 5-10min is mixed, then drying is equal in baking oven to get partial size is small at 75-95 DEG C
The pellet type catalyst of 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910226621.4A CN109939703A (en) | 2019-03-25 | 2019-03-25 | A kind of catalyst of the purification containing volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910226621.4A CN109939703A (en) | 2019-03-25 | 2019-03-25 | A kind of catalyst of the purification containing volatile organic compounds |
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| CN201910226621.4A Pending CN109939703A (en) | 2019-03-25 | 2019-03-25 | A kind of catalyst of the purification containing volatile organic compounds |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63147542A (en) * | 1986-12-12 | 1988-06-20 | Matsushita Electric Ind Co Ltd | Air cleaning agent |
| CN1994555A (en) * | 2006-12-15 | 2007-07-11 | 四川省林业科学研究院 | Impregnated activated carbon and preparation method thereof |
| CN101085691A (en) * | 2006-06-07 | 2007-12-12 | 同济大学 | Method for fast reducing and removing chloride organic pollutant in water body by CEP catalytic reduction system |
| CN108654639A (en) * | 2017-03-31 | 2018-10-16 | 苏州工业园区新国大研究院 | Catalyst and its preparation method and application for formaldehyde normal temperature oxidation |
-
2019
- 2019-03-25 CN CN201910226621.4A patent/CN109939703A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63147542A (en) * | 1986-12-12 | 1988-06-20 | Matsushita Electric Ind Co Ltd | Air cleaning agent |
| CN101085691A (en) * | 2006-06-07 | 2007-12-12 | 同济大学 | Method for fast reducing and removing chloride organic pollutant in water body by CEP catalytic reduction system |
| CN1994555A (en) * | 2006-12-15 | 2007-07-11 | 四川省林业科学研究院 | Impregnated activated carbon and preparation method thereof |
| CN108654639A (en) * | 2017-03-31 | 2018-10-16 | 苏州工业园区新国大研究院 | Catalyst and its preparation method and application for formaldehyde normal temperature oxidation |
Non-Patent Citations (1)
| Title |
|---|
| 卢丽娟等: "Fe2+负载颗粒活性炭去除水中全氟辛酸研究", 《应用化工》 * |
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Application publication date: 20190628 |