| 422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
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| 129 | DF | CHEMICAL REACTOR {28} |
| 168 |  | .~ Waste gas purifier {5} |
| 169 | DF | .~.~> Including means providing sequential purification stages {1} |
| 173 | DF | .~.~> With heat exchanger for reaction chamber or reactants located therein {2} |
| 176 | DF | .~.~> Including waste gas flow distributor upstream of reaction site and within reaction chamber modifying velocity profile of gas |
| 177 | DF | .~.~> Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. {4} |
| 182 | DF | .~.~> Including means injecting combustion fuel into reaction chamber in direct contact with waste gas {1} |