CN104147745A - Method for removing volatile halocarbons in environment through chemical conversion - Google Patents
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Abstract
The invention relates to a method for removing volatile halocarbons in environment through chemical conversion, and belongs to the technical field of environmental engineering. Gas or liquid containing the volatile halocarbons reacts with a dehalogenation agent under the heating condition, and the volatile halocarbons in the environment are removed. The method is specially characterized in that the gas or the liquid containing the volatile halocarbons is led into a dehalogenation agent bed layer after drying pretreatment, the halocarbons and the dehalogenation agent react at the temperature of 150 DEG C to 700 DEG C to generate CO2, H2O, gaseous metal halides and the like, generated gaseous substances are blown through carrier gas to flow out of the bed layer, the gaseous substances pass through an absorption cell to be absorbed and treated, exhausted tail gas does not contain toxic substances, and the halocarbons do not exist in residue in the bed layer. At the low reaction temperature, the method can completely remove the halocarbons used for reaction. Compared with traditional methods of physical absorption, high-temperature burning, metal reduction and the like, the method has the advantages of being short in repairing period, thorough in conversion, free of generating secondary pollution and the like.
Description
Technical field
The present invention relates to a kind of removal method of Volatile Organohalides, especially relate to a kind of method that Volatile Organohalides in environment is removed in chemical conversion, belong to field of environment engineering.
Background technology
Volatile Organohalides has that density is large, boiling point is low, viscosity is little, be insoluble in the characteristics such as water, is widely used in the fields such as chemical industry, medicine, process hides, electronics, dry-cleaning, if it manages improperly and be easy to enter into environment in use, preservation, processing procedure.These materials that are exposed in environment have great harmfulness to human body and environment, and wherein multiple compounds, owing to having volatility easily by skin and mucosal absorption, or is finally enriched in human body by food chain transmission, and human body is caused serious harm.Determination of Multiform Volatile Halogenated Hydrocarbons is considered to have " three cause effect " (carcinogenic, teratogenesis, mutagenesis) and suspicious " three cause effect ", and therefore, Volatile Organohalides is the preferential pollutants of controlling in countries in the world always.
Volatile Organohalides stable chemical nature, difficult degradation in environment, existing processing method is divided into Physical (thermal desorption method, steam extraction process, absorption method, extraction etc.), chemical oxidization method (burning method, peroxide oxidation method, Ozonation, Fenton oxidizing process), chemical reduction method (Zero-valent Iron reducing process, bimetallic reducing process), bioanalysis (aerobic method, anaerobic process).
Patent CN101530858A (2009) discloses a kind of VOCs-contaminated Soils thermal desorption restoration processing system, comprise feed system, heat source system and control system, also comprise thermal desorption system and exhaust gas processing device, wherein thermal desorption system is comprised of air-introduced machine and Re Ti converter, and exhaust gas processing device is comprised of deduster and alkali liquor absorption tower.This invention is when processing the contaminated soil of major pollutants volatility/semi-volatile organic matter, compare with external like product, although equipment cost be about its 1/3～1/5, the clean-up effect of processing the contaminated soil of major pollutants volatility/semi-volatile organic matter only can reach 70%～80%.
(the Environmental Science and Technology such as Heron, 1998,32:1474-1481) take trichloro-ethylene pollutant as research object, in the native case of two dimension, carried out resistance heated Investigation on intensification, experimental result shows, at 23 ℃, the removal efficiency of trichloro-ethylene is very low, estimates that the removal time will be over 1 year; At 85 ℃ and 100 ℃, the transport flux of trichloro-ethylene has increased respectively 2.6 times and 19 times; At 100 ℃, through the heat treated of 37 day time, the removal efficiency of trichloro-ethylene reaches 99.8%.
Patent CN101524703A (2009) discloses a kind of ex-situ repair system and method for operating of petroleum hydrocarbon contaminated soil, in the renovation technique of petroleum hydrocarbon contaminated soil, is provided with extraction tower, and realizes continued operation.Described extraction tower comprises hopper, feeder, solids distribution device, liquid distribution trough and discharger; Extraction tower sidewall bottom and top are respectively equipped with colvent inlet and solvent outlet; Solids distribution device and liquid distribution trough are established respectively in top of tower and bottom; Top and bottom tap into respectively glassware and discharger.This device desorption efficiency is high, and extraction part removal efficiency can reach more than 90%, is applicable to the soil types of repairing wide, but exists the pollutant need to be separated with extractant and the problem of post processing.
Li Shupeng etc. (environmental project, the 31st the 4th phase of volume of August in 2013) adopt Zero-valent Iron-slowly-releasing carbon technique to carry out pilot scale reparation research to the underground reservoir that polluted by chlorohydrocarbon.During pilot scale, water-bearing layer (the volume 900m that polluted by chlorohydrocarbon to underground 9～18m
3) injection 7200kg Zero-valent Iron-slowly-releasing carbon medicament.Underground water pollutant is carried out to periodic monitoring, and result shows: Zero-valent Iron-slowly-releasing carbon technique can be efficiently by the chlorinated hydrocarbon contaminants dechlorination degraded in underground reservoir.Wherein 1, the clearance of 2-dichloroethanes reaches more than 99.9%, and the clearance of 1,1-dichloroethanes reaches more than 86%, and the clearance of chloroform reaches more than 98%.But that Zero-valent Iron has is unstable in air, transportation is shifted and the drawback such as while using, will be carried out under given conditions.
(water purification technology, 2007,26 (3): 11-15) under batch experimental condition, study Ni/Fe bimetallic to CCl such as He little Juan
4(CT), CHCl
3and CH (TCM)
2cl
2(DCM) reductive dechlorination results of property shows, Ni/Fe bimetallic can effectively carry out dechlorination to CT and TCM, but DCM is not had to dechlorination effect; Under similar reaction condition, Ni/Fe bimetallic is better than Zero-valent Iron to the dechlorination effect of CT and TCM.
(the Water Research such as Muftikina R, 1995,29:2434-2439) first report in Fe, add noble metal catalyst bimetallic to process the method for halogenated hydrocarbons, the dechlorination efficiency that dichloroethylene, trichloro-ethylene, tetrachloro-ethylene are processed is very high.(Journal of Dalian University of Technology Total, 1997,37 (1): 25-20) studied Pd/Fe that palladium rate is 0.05% dechlorination efficiency to trichloro-ethylene, the dechlorination rate in 5 minutes reaches 96% such as Quan Xie.
The people such as Bellamy (Research Journal WPCF, 1991,63 (2): 120-128.) carried out O
3/ H
2o
2system is processed the experiment of dichloroethylene, trichloro-ethylene, tetrachloro-ethylene, carbon tetrachloride, and result shows O
3/ H
2o
2very high to the degradation efficiency in chloro footpath, oxidation rate is with O
3delivery rate increase and become large.But O
3/ H
2o
2the continuous action time of system is short, is difficult to control its reaction rate.
(Journal of Environmental Engineering.2006,132 (2): 199-213) by Na such as Speny
2s
2o
8be injected in the chiltern water-bearing layer of being rich in native iron mineral, can observe the fast degradation phenomenon (clearance reaches 83%) of trichloro-ethylene, tetrachloro-ethylene and carbon tetrachloride, this show native iron mineral in water-bearing layer equally can be for catalysis persulfate the chemical oxidation to trichloro-ethylene etc.
(Chinese environmental science and technology, 2011,31 (5): 810-814.) carried out KMnO such as Wu Jiayi
4the experimental study of trichloro-ethylene in oxidation removal sandy loam, utilizes orthogonal experiment to determine KMnO
4the optimum condition of oxidation trichloro-ethylene, and carried out the experiment of earth pillar in-situ oxidation, result shows to adopt KMnO
4after solution drip washing earth pillar 12d, trichloro-ethylene oxygenation efficiency all reaches more than 88%, and reduces rate of flow in rinse and can improve oxygenation efficiency.Chlorohydrocarbon is through KMnO
4after oxidation, dechlorination completely, and the toxicity of catabolite is lower than former material KMnO
4nontoxic to microorganism, can with biological restoration coupling.But utilize KMnO
4when oxidation processes is subject to the underground water of chlorohydrocarbon pollution, at KMnO
4in oxidizing process, will produce water-fast MnO
2accessory substance, to the hole of the underground environment phenomenon that results in blockage, makes the subsurface flow cannot current-carrying KMnO
4solution, causes KMnO
4can not effectively contact with pollutant, thereby oxidation reaction is slowed down.
Summary of the invention
Object of the present invention is exactly to provide in order to overcome the defect of above-mentioned prior art existence a kind of method that repairing efficiency is short, transform Volatile Organohalides in the chemical conversion removal environment that thoroughly, does not produce secondary pollution.
Object of the present invention can be achieved through the following technical solutions:
A method for Volatile Organohalides in environment is removed in chemical conversion, and the gas that contains Volatile Organohalides or liquid are reacted under heating condition with agent, removes the Volatile Organohalides in environment.
Described Volatile Organohalides is chloromethanes, carrene, chloroform, bromofom, carbon tetrachloride, 1, 1-dichloroethanes, 1, 2-dichloroethanes, 1, 1, 1-trichloroethanes, 1, 1, 2-trichloroethanes, 1, 1, 2, 2-tetrachloroethanes, 1, 1, 1, 2-tetrachloroethanes, vinyl chloride, 1, 1-dichloroethylene, cis-1, 2-dichloroethylene, anti-form-1, 2-dichloroethylene, DBE, trichloro-ethylene, tetrachloro-ethylene, 1, 2-dichloropropane, 1, 2, 3-trichloropropane, any one in two bromochloromethanes or a bromodichloromethane, or the mixture of their arbitrary proportions.
The gas that contains Volatile Organohalides, for Volatile Organohalides itself or by gaseous state halogenated hydrocarbons, N
2, O
2, the mist that forms of Ar, He or their arbitrary proportion mists dilution;
The liquid that contains Volatile Organohalides is Volatile Organohalides itself or the liquefied mixture that liquid halogenated hydrocarbons and other organic liquid are formed with arbitrary proportion mixed diluting as alkane, aromatic hydrocarbon.
In the gas or liquid that contains Volatile Organohalides, the concentration of halogenated hydrocarbons is in the concentration range of 1ppm～100%.
Described agent is the mixture of metal oxide or zeolite molecular sieve or the two arbitrary proportion.
Described metal oxide is A
2o
3or BO
2, wherein A is positive 3 valency metals, B is positive 4 valency metals.
Described A
2o
3, comprise natural formation or artificial synthetic A
2o
3; Can be for unformed, as surge aluminium stone, boehmite etc.; Also can be for thering is certain crystal formation, as χ-A
2o
3, η-A
2o
3, γ-A
2o
3, δ-A
2o
3, κ-A
2o
3, θ-A
2o
3, ρ-A
2o
3or α-A
2o
3, preferably agent is γ-A
2o
3.
Described BO
2comprise natural formation or artificial synthetic BO
2; Can be for unformed, also can be for thering is certain crystal formation, preferably agent is Tetragonal BO
2.
Described zeolite molecular sieve is selected from the mixture of micro-pore zeolite molecular sieve, mesopore zeolite molecular sieve or two-dimentional molecular sieve or three's arbitrary proportion.
Described micro-pore zeolite molecular screening is from A type (3A, 4A, 5A), X-type (10X, 13X), Y type, MFI type, MOR type, Beta (β) type, FER type, SAPO-34 molecular sieve.Dehalogenation effect is preferably X-type or Y zeolite.
Described mesopore zeolite molecular screening is from MCM-41 molecular sieve or MCM-48 molecular sieve.
Described two-dimentional molecular sieve is acid imvite, Acidic Bentonite, Emathlite or pillared montmorillonite;
Wherein pillared montmorillonite is for to modify gained by acid imvite, Acidic Bentonite and Emathlite by inorganic material.
Described agent and porous mass coexist, and when reacting, the gross mass of agent shared mass percent in processing sample is greater than 10%;
Described porous mass is SiO
2, active carbon or clay.
The gas that contains Volatile Organohalides or liquid react at 150～700 ℃ with agent, and preferred range of reaction temperature is 200～600 ℃.
The present invention for realize described Volatile Organohalides fast, thoroughly transform and remove, the technical scheme adopting is: the gas that contains Volatile Organohalides or liquid, by the bed of agent, are added to thermal response, generate CO
2, H
2the gaseous materials such as metal halide of O and distillation, tail gas is directly discharge after water or alkali liquor absorption, and in bed, residue does not contain the residual, nontoxic of halogenated hydrocarbons, can directly reclaim or landfill disposal yet.
The chemical reaction that this process occurs is as follows (with CCl
4with BO
2reaction is example):
BO
2+CCl
4→BCl
4↑+CO
2↑
BCl
4+ NaOH → B (OH)
4+ NaCl, B is positive 4 valency metals
By the inventive method, remove Volatile Organohalides, its process can be divided into 3 steps:
(1) the dry preprocessing process of agent: agent is placed in to dry gas (as N
2, air or their mist) or vacuum in, at 100～250 ℃, heating, removes the free moisture in agent.
(2) course of reaction of halogenated hydrocarbons and agent: at 150～750 ℃, pass into gas or the liquid that contains Volatile Organohalides in described agent bed, halogenated hydrocarbons and agent react, generates CO
2, H
2the gaseous materials such as metal halide of O and distillation.
(3) tail gas absorbs and the rear residue processing procedure of agent reaction: water or alkali liquor absorption tail gas, and the main purpose of this process is the metal halide absorbing in gas, makes it be converted into metal hydroxides; After reaction, in agent, have some materials that do not participate in reaction (as SiO
2) residual, these residues are nontoxic, and employing landfill or the method for directly toppling over are processed.
This process does not produce secondary pollution, and quick, thorough to removing of halogenated hydrocarbons, device is few, and operation is simple, easy to implement.
Compared with prior art, the present invention is applicable to the reaction of common Volatile Organohalides and eliminates, Volatile Organohalides can be gaseous state can be also liquid, can be that one matter can be also mixture.Agent (the A that the present invention is used
2o
3, BO
2deng metal oxide, and zeolite molecular sieve etc.) physics and chemistry characteristic can manual control, can need to carry out modification to above-mentioned agent according to processing, agent wide material sources, consumption and reaction temperature can be determined according to the reactivity of halogenated hydrocarbons self, concentration and flow.Dehalogenation reaction process is simple, and desired reaction temperature is moderate, under lower reaction temperature, multiclass chlorohydrocarbon can be removed completely.The tail gas that dehalogenation reaction generates, after absorption cell absorbs and processes, does not contain noxious material in the tail gas of discharge, and in the residue in bed without halogenated hydrocarbons.The method is compared with traditional treatment method, have repairing efficiency short, transform and thoroughly, not produce the advantages such as secondary pollution.The method can be applicable to be subject to the place of volatile organic matter pollution and improvement and the reparation of underground water.
Accompanying drawing explanation
Fig. 1 is that ReY type molecular sieve and USY type molecular sieve are to CCl
4conversion ratio temporal evolution curve.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
Under different temperatures, metal oxide is to CCl
4removal effect
By metal oxide (Al
2o
3, SnO
2, TiO
2deng) in Muffle furnace, at 500 ℃, activate 4h, get 0.8g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 200 ℃～400 ℃
4conversion ratio as shown in table 1.
Under table 1 different temperatures, metal oxide is to CCl
4removal effect
Embodiment 2
Composite metal oxide is to CCl
4removal effect
By composition metal metal oxide Al
2o
3snO
2and Al
2o
32SnO
2in Muffle furnace, at 500 ℃, activate 4h, get 0.8g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 150 ℃～350 ℃
4conversion ratio as shown in table 2.
Table 2 composite metal oxide is to CCl
4removal effect
Embodiment 3
A type molecular sieve is to CCl
4removal effect
A type molecular sieve (3A type, 4A type, 5A type) is activated to 4h in Muffle furnace at 500 ℃, get 0.8g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 150 ℃～300 ℃
4conversion ratio as shown in table 3.
Table 3 A type molecular sieve is to CCl
4removal effect
Embodiment 4
X-type molecular sieve is to CCl
4removal effect
X-type molecular sieve (10X type, 13X type etc.) is activated to 4h in Muffle furnace at 500 ℃, get 0.2g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 150 ℃～300 ℃
4conversion ratio as shown in table 4.
Table 4 X-type molecular sieve is to CCl
4removal effect
Embodiment 5
Y zeolite is to CCl
4removal effect
Y zeolite (NaY type, HY type, USY type, ReY type etc.) is activated to 4h in Muffle furnace at 400 ℃, get 0.2g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 150 ℃～300 ℃
4conversion ratio as shown in table 5.
Table 5 Y zeolite is to CCl
4removal effect
Embodiment 6
NaY type molecular sieve and bentonite mixture are to CCl
4removal effect
NaY type molecular sieve and bentonite are mixed with certain mass ratio (be respectively 1: 1,1: 2,1: 4) respectively, in mortar, pulverize and mix, in Muffle furnace, at 400 ℃, activate 4h, get 0.2g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 37.7ml/min adds thermal response, CCl under different temperatures at 150 ℃～300 ℃
4conversion ratio as shown in table 6.
Table 6 NaY type molecular sieve and bentonite mixture are to CCl
4removal effect
Embodiment 7
Type ZSM 5 molecular sieve and beta molecular sieve are to CHCl
3/ CCl
4the removal effect of mist
Type ZSM 5 molecular sieve and beta molecular sieve are activated to 4h in Muffle furnace at 500 ℃, get 0.2g and put into fixed bed reactors, pass into CHCl in mist
3concentration is 850ppm, CCl
4concentration is 1010ppm, and gas flow rate 40ml/min adds thermal response, CHCl under different temperatures at 150 ℃～300 ℃
3and CCl
4conversion ratio respectively as shown in table 7, table 8.
Table 7 type ZSM 5 molecular sieve and beta molecular sieve are to CHCl
3/ CCl
4cHCl in mist
3removal effect
Table 8 type ZSM 5 molecular sieve and beta molecular sieve are to CHCl
3/ CCl
4cCl in mist
4removal effect
Embodiment 8
ReY type molecular sieve and USY type molecular sieve are to C
2cl
4removal effect
Molecular sieve 7 and molecular sieve 8 are activated to 4h in Muffle furnace at 500 ℃, get 4g and put into fixed bed reactors, with plunger displacement pump, pass into liquid C
2cl
4, flow velocity is 2ml/h, adds thermal response, C under different temperatures at 200 ℃～400 ℃
2cl
4conversion ratio as shown in table 9.
Table 9 ReY type molecular sieve and USY type molecular sieve are to C
2cl
4removal effect
Embodiment 9
Reaction time is to ReY type molecular sieve and USY type molecular sieve and CCl
4the impact of reaction conversion ratio
ReY type molecular sieve and USY type molecular sieve are activated to 4h in Muffle furnace at 500 ℃, get 0.2g and put into fixed bed reactors, pass into the CCl of 1010ppm
4/ N
2gas, gas flow rate 45.0ml/min adds thermal response, CCl at 350 ℃
4conversion ratio temporal evolution as shown in Figure 1.
The above-mentioned description to embodiment is can understand and use invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. a method for Volatile Organohalides in environment is removed in chemical conversion, it is characterized in that, the gas that contains Volatile Organohalides or liquid are reacted under heating condition with agent, removes the Volatile Organohalides in environment.
2. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 1, it is characterized in that, described Volatile Organohalides is chloromethanes, carrene, chloroform, bromofom, carbon tetrachloride, 1, 1-dichloroethanes, 1, 2-dichloroethanes, 1, 1, 1-trichloroethanes, 1, 1, 2-trichloroethanes, 1, 1, 2, 2-tetrachloroethanes, 1, 1, 1, 2-tetrachloroethanes, vinyl chloride, 1, 1-dichloroethylene, cis-1, 2-dichloroethylene, anti-form-1, 2-dichloroethylene, DBE, trichloro-ethylene, tetrachloro-ethylene, 1, 2-dichloropropane, 1, 2, 3-trichloropropane, any one in two bromochloromethanes or a bromodichloromethane, or the mixture of their arbitrary proportions.
3. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 1, it is characterized in that, the gas that contains Volatile Organohalides, for Volatile Organohalides itself or by gaseous state halogenated hydrocarbons, N
2, O
2, the mist that forms of Ar, He or their arbitrary proportion mists dilution;
The liquid that contains Volatile Organohalides is Volatile Organohalides itself or the liquefied mixture that liquid halogenated hydrocarbons and other organic liquid are formed with arbitrary proportion mixed diluting.
4. according to a kind of chemical conversion described in claim 1 or 3, remove the method for Volatile Organohalides in environment, it is characterized in that, in the gas or liquid that contains Volatile Organohalides, the concentration of halogenated hydrocarbons is in the concentration range of 1ppm～100%.
5. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 1, it is characterized in that, described agent is the mixture of metal oxide or zeolite molecular sieve or the two arbitrary proportion.
6. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 5, it is characterized in that, described metal oxide is A
2o
3or BO
2, wherein A is positive 3 valency metals, B is positive 4 valency metals.
7. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 5, it is characterized in that, described zeolite molecular sieve is selected from the mixture of micro-pore zeolite molecular sieve, mesopore zeolite molecular sieve or two-dimentional molecular sieve or three's arbitrary proportion.
8. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 7, it is characterized in that, described micro-pore zeolite molecular screening is from A type, X-type, Y type, MFI type, MOR type, Beta type, FER type or SAPO-34 molecular sieve;
Described mesopore zeolite molecular screening is from MCM-41 molecular sieve or MCM-48 molecular sieve.
Described two-dimentional molecular sieve is acid imvite, Acidic Bentonite, Emathlite or pillared montmorillonite;
Wherein pillared montmorillonite is for to modify gained by acid imvite, Acidic Bentonite and Emathlite by inorganic material.
9. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 1, it is characterized in that, described agent and porous mass coexist, and when reacting, the gross mass of agent shared mass percent in processing sample is greater than 10%;
Described porous mass is SiO
2, active carbon or clay.
10. the method for Volatile Organohalides in environment is removed in a kind of chemical conversion according to claim 1, it is characterized in that, the gas that contains Volatile Organohalides or liquid react at 150～700 ℃ with agent.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909279A (en) * | 2019-03-14 | 2019-06-21 | 中国地质大学（北京） | It is a kind of to synchronize medicament and method fixed and that cut down trichloro ethylene in soil and/or underground water |
| CN110876922A (en) * | 2018-09-06 | 2020-03-13 | 中国石油化工股份有限公司 | Naphtha dechlorination adsorbent and preparation method and application thereof |
| CN110917871A (en) * | 2019-11-05 | 2020-03-27 | 河北科技大学 | Method for absorbing and catalytically oxidizing halogenated hydrocarbon by using metal simple substance and/or metal oxide |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098326A (en) * | 1992-12-23 | 1995-02-08 | 罗姆和哈斯公司 | Remove and destroy the method for halogenated organic compounds and hydrocarbon compound with porous carbonaceous materials |
| CN1265043A (en) * | 1997-07-23 | 2000-08-30 | 帕克控股公司 | Method for eliminating halogenated and non halogenated waste |
| CN1382072A (en) * | 1999-09-29 | 2002-11-27 | 三井化学株式会社 | Catalyst for decomposing organic hazardous material and method for decomposing organic halides using the same |
| CN1544110A (en) * | 2003-11-20 | 2004-11-10 | 上海交通大学 | Preparation of self-catalyze degradation pesticide |
-
2014
- 2014-08-22 CN CN201410418319.6A patent/CN104147745B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098326A (en) * | 1992-12-23 | 1995-02-08 | 罗姆和哈斯公司 | Remove and destroy the method for halogenated organic compounds and hydrocarbon compound with porous carbonaceous materials |
| CN1265043A (en) * | 1997-07-23 | 2000-08-30 | 帕克控股公司 | Method for eliminating halogenated and non halogenated waste |
| CN1382072A (en) * | 1999-09-29 | 2002-11-27 | 三井化学株式会社 | Catalyst for decomposing organic hazardous material and method for decomposing organic halides using the same |
| CN1544110A (en) * | 2003-11-20 | 2004-11-10 | 上海交通大学 | Preparation of self-catalyze degradation pesticide |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876922A (en) * | 2018-09-06 | 2020-03-13 | 中国石油化工股份有限公司 | Naphtha dechlorination adsorbent and preparation method and application thereof |
| CN109909279A (en) * | 2019-03-14 | 2019-06-21 | 中国地质大学（北京） | It is a kind of to synchronize medicament and method fixed and that cut down trichloro ethylene in soil and/or underground water |
| CN109909279B (en) * | 2019-03-14 | 2020-01-03 | 中国地质大学（北京） | Medicament and method for synchronously fixing and reducing trichloroethylene in soil and/or underground water |
| CN110917871A (en) * | 2019-11-05 | 2020-03-27 | 河北科技大学 | Method for absorbing and catalytically oxidizing halogenated hydrocarbon by using metal simple substance and/or metal oxide |
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