Ambient Reactive Sorption OF CW Simulants on Cation Exchanged Zeolites

Abstract

Zeolite sorbent/catalyst materials were prepared, characterized and then utilized to determine their surface interactions at ambient temperature with common CW simulants for VX and HD. From this research, new insights regarding reactive sorption pathways of simulants on exchanged zeolites at ambient temperature have been proposed which will aid in developing superior alternates for sorption and detoxification of CW agents in the field. Experiments utilized a Bomem FTIR spectrometer with Harrick cell for in situ measurements of interactions between zeolite and CW simulant. Zeolite Si/Al ratios were varied from 15 to 40. Three sorbent /catalyst media were evaluated (Chromium-ZSM-5, Silver-ZSM-5 and standard gamma alumina). Results showed maximum destruction of TCE and DEMP simulants by Chromium-ZSM-5, followed by Silver-ZSM-5. Gamma alumina was found to be the least destructive. Initial work with dichloropropene (DCP), which is a common pesticide and also a CW simulant showed ambient chemisorption and also chemical rearrangement on Chromium-ZSM-5.

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Document Details

Document Type
Technical Report
Publication Date
Nov 25, 2002
Accession Number
ADA415071

Entities

People

  • Howard Greene
  • Meghan Swanson
  • Philip Morrison

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Catalysts
  • Chemistry
  • Chromium
  • Mass Spectrometers
  • Measurement
  • Pesticides
  • Scientists
  • Sorption
  • Spectra
  • Spectrometers
  • Spectroscopy
  • Standards
  • Students
  • Surface Reactions
  • Vapor Phases
  • Volatility
  • X Ray Photoelectron Spectroscopy

Readers

  • Environmental Engineering.
  • Groundwater Contamination Remediation.
  • Organic Chemistry