Charcoal Regeneration - Part 4. Competitive Adsorption of TNT and RDX
Abstract
Trinitrotoluene (TNT) and cyclotrimethylenetrinitramine (RDX), pink water , adsorption/solvent desorption cycling of activated carbon (FS300) has been studied as a function of various pretreatments. In agreement with previous studies of TNT and RDX individually, preferential plugging of pores by pretreatments did not improve the solvent regeneration of the FS300. The study of the competitive adsorption of TNT and RDX indicated that, at the higher concentrations, TNT tended to displace RDX from the carbon surface. This is attributed to a lower binding energy of the adsorbed RDX to the surface. In conjunction with water adsorption/desorption isotherms, the characteristics of a carbon with improved cycling properties have been elucidated. These properties are in agreement with those characteristics found in previous studies and involve a shift to a larger pore volume, increased concentration of pores in the mesopore range and an increased ratio of pore opening to pore body diameters. Another desirable property would be a lower adsorption binding energy for these explosives to the activated carbon.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1983
- Accession Number
- ADA130002
Entities
People
- Jerome Haberman
Organizations
- United States Army Armament Research, Development and Engineering Center