| Patent application number | Description | Published |
|---|
| 20080299016 | SYSTEM AND METHOD FOR SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES IN COMBUSTION EXHAUST GASES - A multi-stage selective catalytic reduction (SCR) unit ( | 12-04-2008 |
| 20090196813 | HIGH TEMPERATURE CATALYST AND PROCESS FOR SELECTIVE CATALYTIC REDUCTION OF NOX IN EXHAUST GASES OF FOSSIL FUEL COMBUSTION - A process for producing a stable high-temperature catalyst for reduction of nitrogen oxides in combustion exhaust gases at operating temperatures from 300° C. to over 700° C. without the need for exhaust dilution. A zeolite material is steam-treated at a temperature and duration sufficient to partially de-aluminize the zeolite to approximately a steady state, but not sufficient to fully collapse its chemical structure. Iron is added to the zeolite material. The zeolite material is calcined at a temperature, humidity, and duration sufficient to stabilize the zeolite material. Examples and specifications for ranges, order, and durations of steaming, calcining, and other steps are provided. | 08-06-2009 |
| 20090285735 | SELECTIVE CATALYTIC REDUCTION SYSTEM AND PROCESS USING A PRE-SULFATED ZIRCONIA BINDER - A selective catalytic reduction (SCR) process with a palladium catalyst for reducing NO | 11-19-2009 |
| 20090285740 | CATALYTIC PROCESS FOR CONTROL OF NOx EMISSIONS USING HYDROGEN - A selective catalytic reduction process with a palladium catalyst for reducing NO | 11-19-2009 |
| 20100226842 | High Temperature Catalytic Process to Reduce Emissions of Carbon Monoxide - A method for oxidizing an amount of CO in a CO-containing gas stream, e.g., a combustion stream from fuel combustion, is provided. The method comprises exposing the CO-containing gas stream to a catalytic coating at reaction conditions, including least 8 vol. % and a temperature of at least 600° C. At these reaction conditions, the method comprises generating gaseous intermediate oxidizing species at the catalytic coating for oxidation of the carbon monoxide within the CO-containing gas stream as a homogeneous reaction to improve CO removal efficiency. | 09-09-2010 |
| 20100300061 | Selective Catalytic Reduction System and Process for Treating NOx Emissions Using a Palladium and Rhodium or Ruthenium Catalyst - A process for the catalytic reduction of nitrogen oxides (NOx) in a gas stream ( | 12-02-2010 |
| 20100303697 | Selective Catalytic Reduction System and Process for Treating NOx Emissions Using a Zinc or Titanium Promoted Palladium-Zirconium Catalyst - A process and system ( | 12-02-2010 |
| 20110105314 | Process of Activation of a Palladium Catalyst System - Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180° C. at a heating rate of from 1-20°/min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities. | 05-05-2011 |
