Development of a Glass Reactor Lining for Chlorocarbon-Supercritical Water Reactions.
Abstract
The current study has examined the influence of supercritical water (SW) on reactions of organic chlorides. The aliphatic compounds were represented by 1-chloro-3-phenylpropane which reacted rapidly and completely by both pyrolysis and with SW. The presence of SW produced only a minor shift in organic products. SW did promote the reaction between the metal walls and the chloride, or HCl formed from it, to quantitatively produce metal chlorides, as confirmed by ICP analysis; after dry pyrolysis some HCl, still remained. However, SW did significantly increase the rate of consumption of the aromatic chloride, 2-chlorotoluene, over that of dry pyrolysis; metal chlorides were evident in the water layer and HCl was not detected in the SW reaction. Because the reaction of organic chlorides, and/or the HCl formed from them, with the reactor walls may influence the rates and product distributions, experiments were begun using Vycor inserts to provide a more inert surface. Pyrex was not inert to SW. The results of these experiments, plus those with added NiCl2 or FeCl2 solutions in the Vycor insert, showed conclusively that both the metal wall and the metal salts had a catalytic effect in the reaction. Similar catalysis by the reactor wall was observed for the SW - 4-chlorophenol reaction. These results indicate that organic chlorides can produce a corrosion problem at SW conditions of the metal components of flow systems and with oxide supported catalyst beds.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 09, 1995
- Accession Number
- ADA299579
Entities
People
- Thomas Houser
Organizations
- Western Michigan University