| 摘要 |
A gas phase reactror for hte selective catalytic reduction of nitrogen oxide in a gas stream includes a shell conclosing an interior space in which is located at least one catalyst bed containing a catalyst for the selective converion of NOx. An injector upstream of the catalyst introduces a reducing agent such as ammonia into the inlet gas stream. The catalyst bed can include particulate, monolith, or microengineered catalyst. A burner is employed to raise the temperature of the inlet gas stream. A heat exchanger is used to transfer heat from treated gas to the inlet gas. optionally, a deflector is used to deflect gas flow through the heat exchanger. |
