Removal of trichlorobenzene using ‘oxygen‐enriched’ highly active absorbent

Fly ash, industry lime and an additive, Ca(ClO₂ )₂ (C) were used to prepare the ‘oxygen‐enriched’ highly active absorbent (HAA). The influencing factors for removal of 1,2,4‐trichlorobenzene (TCB) using this absorbent such as reaction temperature, simulating gas flow rate, oxygen content, etc. were...

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Bibliographic Details
Published in:Environmental technology 2011, Vol.32 (1), p.27-35
Main Authors: Zhao, Yi, He, Peng, Zhang, Yu‐Hai, Ma, Shuangchen
Format: Article
Language:English
Subjects:
'oxygen-enriched' highly active absorbent
1,2,4-trichlorobenzene
Absorbents
Absorption
Additives
Air Pollutants - chemistry
Air Pollutants - isolation & purification
Applied sciences
calcium
calcium chlorite
Calcium Compounds - chemistry
Carbon - chemistry
Chemical engineering
chlorinated hydrocarbons
chlorites
Chlorobenzenes - chemistry
Chlorobenzenes - isolation & purification
Coal Ash
environmental technology
Exact sciences and technology
fly ash
gas chromatography
Gas Chromatography-Mass Spectrometry
Gas flow
Incineration
liming materials
Mass spectrometers
mass spectrometry
Optimization
Organic Chemicals - chemistry
oxidants
oxygen
Oxygen - chemistry
Oxygen content
Particulate Matter - chemistry
phenolic compounds
Pollution
reaction mechanism
Reactors
removal
Simulation
spectrometers
Temperature
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Summary:Fly ash, industry lime and an additive, Ca(ClO₂ )₂ (C) were used to prepare the ‘oxygen‐enriched’ highly active absorbent (HAA). The influencing factors for removal of 1,2,4‐trichlorobenzene (TCB) using this absorbent such as reaction temperature, simulating gas flow rate, oxygen content, etc. were studied in a self‐designed reactor. The optimum experimental conditions of removing 1,2,4‐TCB are that the content of an oxidizing additive in the absorbent is 3% (wt), simulating gas flow rate is 100 mL/min, reaction temperature is 250°C, and the content of oxygen in simulating gas is 6%. The maximum removal efficiency is 81.71% in 10 mins. The absorption capacity of the absorbent is 0.000111 g/g. The reaction products were determined by gas chromatograph/mass spectrometer (GC/MS), 2,6‐Bis‐[1,1‐Dimethylethyl]‐4‐methyl‐Phenol is considered to be the major intermediate product. The reaction route was revealed.
ISSN:1479-487X
0959-3330
1479-487X
DOI:10.1080/09593331003604819