Molecular beam mass-spectrometric study of H{sub 2}/O{sub 2}/Ar flame doped with phosphorus compounds
- Institute of Chemical Kinetics and Combustion, Novosibirsk (Russian Federation); and others
The combustion of phosphorus compounds (PC) is of a great interest in connection with the disposal of toxic and hazardous chemical wastes and other undesirable substances containing these compounds. One of the most promising technologies for the disposal of wastes is their incineration. This can totally destroy these toxic and hazardous substances. However, for better reliability and control over these processes one needs to know the mechanism of their combustion and especially its chemical details. An alkylphosphate and an alkylphosphonate are typical organophosphorus compounds (OPC). On the one hand, some of them are industrial wastes. For example, tri-n-butylphosphate - TBP - is the product of uranium ore treatment. Phosphorus compounds are applied as additives in polymers for improving their properties. DMMP - dimethyl methylphosphonate - can be used as retardant to polymers. On the other hand, they can be model species for studying the problems of the incinerating pesticides and some of the components of chemical weapons. DMMP is a model simulant of warfare agent sarin. The chemistry of OPC combustion is not understood. Interest in the behavior of phosphorus-containing substances in flames is not limited to the problem of their destruction. These substances (e.g. TMP-trixmethylphosphate, phosphine) can act as inhibitors or promoters of the combustion. The aim of the present paper is to investigate the behavior of TMP and DMMP as typical OPC in a well-studied stoichiometric flame of H{sub 2} + O{sub 2} + Ar, stabilized at low pressure on a flat burner. Also this paper deals with the chemistry of these reactions destroying TMP and DMMP in flame. This is achieved by identifying intermediate and end products (including atoms and radicals) by their mass-spectra, and also by measuring the concentration profiles of initial, intermediate and end products. This could well provide a basis for developing a model of OPC combustion.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- OSTI ID:
- 110836
- Report Number(s):
- NREL/CP-433-7748; CONF-9410343-; ON: DE95004052; CNN: Contract N681719C9056; TRN: 95:005145-0011
- Resource Relation:
- Conference: Applications of free-jet, molecular beam, mass spectrometric sampling conference, Estes Park, CO (United States), 11-14 Oct 1994; Other Information: PBD: Mar 1995; Related Information: Is Part Of Applications of free-jet, molecular beam, mass spectrometric sampling: Proceedings; Milne, T. [ed.]; PB: 305 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mass-spectrometric investigation of the structure of a stoichiometric H{sub 2}/O{sub 2}/Ar flame doped with trimetylphosphate and n-tributylphosphate
Chemistry of destroying chemical warfare agents in flame. Technical project report, April 1994-May 1995