1 edition of Destruction of chlorinated hydrocarbons by catalytic oxidation found in the catalog.
Destruction of chlorinated hydrocarbons by catalytic oxidation
by U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory in Research Triangle Park, NC
Written in English
|Statement||M.A. Palazzolo ... [et al.].|
|Contributions||Palazzolo, M. A., Air and Energy Engineering Research Laboratory.|
|The Physical Object|
|Pagination||3,  p. :|
Low Temperature Destruction of Chlorinated Hydrocarbons over Lanthanide-oxide based Catalysts Pieter van der Avert1, Bert M. Weckhuysen1,2 1 Centrum voor Oppervlaktechemie en Katalyse, Departement Interfasechemie, , Kasteelp Leuven, Belgium; 2 Departement Anorganische Chemie en Katalyse, Debye Instituut, Universiteit Utrecht, Sorbonnel Many remediation technologies have been developed to treat extensive subsurface contamination by chlorinated hydrocarbons (CHCs). One such technology is a permeable reactive barrier (PRB), which contains reactive media that acts as an electron donor in order to reduce CHCs. Extensive effort has been placed on finding the most suitable reactive media in PRBs, with zero-valent iron (ZVI) being Author: Christopher Scott Cushman.
Previous work on catalytic destruction of chlorinated hydrocarbons has focused on the study of either reduction or oxidation as the main mechanism. Reduction studies show high conversions at temperatures that are lower than those required by oxidation, albeit with relatively rapid catalyst deactivation mainly due to coking [ 49 ].Cited by: Chlorinated organics are hydrocarbons that have one or many chlorine atoms. Oxidation of chlorinated hydrocarbons yield CO2, water vapor and hydrogen chloride (HCl) gas. Some typical chlorinated organics are TCE and PCE. These organics have calorific values as low as 5, BTU/lb. CATALYST. The characteristics of oxidation catalyst are many and.
Anguil's Chlorinated Oxidizers destroy halogenated organic acids and mixed organic vapor contaminants that are discharged from a variety of industrial process streams. Chlorinated volatile organic compounds (CVOCs) are toxic chemical entities emitted invariably from stationary thermal operations when a trace of chlorine is present. Replacing the high-temperature destruction operations of these compounds with catalytic oxidation .
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Destruction efficiency across the gas- fired preheater generally ranged from 15 to 55% for Mixtures 1, 3, and 4, which contained only chlorinated hydrocarbons. Heater destruction efficiencies for Mixture 2 were slightly higher (40 to 60%).
Get this from a library. Destruction of chlorinated hydrocarbons by catalytic oxidation. [M A Palazzolo; Air and Energy Engineering Research Laboratory.;].
Technology not only needs to eliminate toxic emissions from these industries but also to destroy the vast quantities of chlorinated solvents, chloroaromatics, and PCBs contaminating dump sites, soils, and water supplies.A novel method is catalytic destruction of chlorocarbons with steam which is cleaner and more cost effective than incineration with air.
In order, we will address: Catalyst properties and preparation Destruction of chlorinated hydrocarbons from soil venting and groundwater remediation Catalytic oxidation of the vent gas from a pure terephthalic acid (PTA) plant Catalytic destruction of dioxins VOC reduction including increased poison resistant catalyst formulations Advances in lower temperature catalytic oxidation of VOCs Hybrid Low NOx Process CATALYST PROPERTIES AND PREPARATION The chief advantage of catalytic oxidation Cited by: Destruction of Chlorinated Hydrocarbons by Catalytic Oxidation By-product Formation during the Catalytic Oxidation of Chlorinated Hydrocarbons Polychlorinated Biphenyls, Dioxins and the Environment References to Chapter 9 10 Oxidation Reactions Catalysed by Zeolites and Structured Mesoporous Materials Zeolites.
the catalytic destruction of non-halogenated volatile organic compounds, only a relatively small amount of data has been published on their per- formance for destroying halogenated volatile organic compounds; this.
Novel catalysts comprising noble metals (Pt), supported on fiber-glass woven materials demonstrated efficient oxidation of different chlorinated hydrocarbons (chlorobenzene, dichloroethane. Thermal and catalytic incineration are considered to be the best methods for CHC destruction.
Unfortunately CHCs are combustion inhibitors when added to hydrocarbon fuels. Additionally, if combustion conditions are not carefully controlled, products of incomplete combustion can be formed that are more toxic than the original CHCs.
In-Situ Destruction of Chlorinated Hydrocarbons in Groundwater Using Catalytic Reductive Dehalogenation in a Reactive Well: Testing and Operational Experiences.
Environmental Science & Technology34 (1), DOI: /es K.L. Knee, A. by: Chlorinated hydrocarbons (CHCs) have widespread industrial applications as, for example, lubricants, cleaning solvents, heat‐transfer fluids, and intermediates of pharmaceuticals, herbicides, and fungicides.
1 The increasing volume of CHCs released into the environment, together with the suspected toxicity and carcinogenic properties, have prompted researchers world‐wide to find clean and Cited by: Destruction of Chlorinated Hydrocarbons by Catalytic Oxidation By-product Formation during the Catalytic Oxidation of Chlorinated Hydrocarbons Polychlorinated Biphenyls, Dioxins and the Environment References to Chapter 9 10 Oxidation Reactions Catalysed by Zeolites and Structured Mesoporous Materials Zeolites Redox Price: $ incinerator, the principal destruction alternative.
In addition, the catalytic oxidation process is the halogenated hydrocarbon greatly reduces the catalytic activity of hydrocarbon oxidation for these catalysts in chlorinated hydrocarbons, with a trade-off of producing volatile heavy metal chlorides.
effectiveness of catalytic oxidation for destroying vapor phase chlorinated hydrocarbons. The study was conducted on two pilot scale catalytic incinerator systems leased from vendors. One system employed a metal oxide catalyst in a fluidized bed configuration.
The other system used a fixed. A groundwater treatment technology based on catalytic reductive dehalogenation has been developed to efficiently destroy chlorinated hydrocarbons in situ using a reactive well approach. The treatment process utilizes dissolved H2 as an electron donor, in the presence of a commercial palladium-on-alumina catalyst, to rapidly reduce common chlorinated aliphatics such as trichloroethylene and Cited by: The catalytic behaviour of LaMnO3, LaCoO3 and (LaSr)(MnCo)O3 perovskites supported on cordierite monoliths was studied in the total oxidation of chlorinated hydrocarbons.
Destruction of volatile organic compounds by catalytic oxidation Do not forget the three “T’s” of combustion: turbulence, time and temperature. Catalytic oxidation has been applied for odour control (Hermia, ) and treatment of emissions containing evaporated solvents (Vigneron, ).
Also, aFile Size: KB. Noble metal‐based catalysts for total oxidation of chlorinated hydrocarbons. José M. Toledo. Department of Chemical Engineering, Complutense University of Madrid, Madrid, Spain.
Search for more papers by this author. José Corella. Catalytic oxidation of chlorinated hydrocarbons over V2O5/TiO2 catalysts Janine Lichtenberger and Michael D.
Amiridis Department of Chemical Engineering The University of South Carolina, Columbia, SC, USA Small amounts of toxic polychlorinated aromatic compounds (i.e. polychlorinated. Catalytic Oxidation of Dichloromethane and Perchloroethylene: Laboratory and Industrial Scale Studies.
Musialik-Piotrowska A, Rutkowski JD () Oxidation of chlorinated hydrocarbons over Pt-Pd-based catalyst Part 1. Chlorinated methanes. Catalytic destruction of halogenated air toxics and the effect of admixture with VOCs. Cited by: Chromium oxide is a well known catalyst for the complete oxidation of chlorinated hydrocarbons due to its high removal activity .
The commercial application of this catalytic system, however, has been limited by fear about the evaporation of Cr during the course of reaction, especially at high feed concentrations of chlorinated compounds in the feed gas system [ 3, 4 ].
An extensive body of research on catalytic destruction of halogenated compounds has originated from the elegant work of Bond et al. in the s. 7 Catalytic oxidative dehalogenation occurs when an organochlorine compound is oxidized to CO 2 in the presence of an oxidant, such as O 2; primary products are CO 2, H 2 O, and Cl by: 2.CATALYTIC DESTRUCTION OF CHLORINATED VOLATILE ORGANIC COMPOUNDS Howard L.
Greene Chemical Engineering Department University of Akron Akron OH ENVIRONICS DIRECTORATE Barnes Drive, Suite 2 Tyndall AFB FL August Final Technical Report for Period October - July Approved for public release; distribution : Howard L Greene.Abstract.
Since chlorinated hydrocarbons are known to be responsible for the destruction of the stratospheric ozone layer and contribute to the ‘greenhouse effect’ it is necessary to investigate the chemical reaction cycles in which the halocarbons are by: 2.