| Patent application number | Description | Published |
|---|
| 20090178333 | Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and process and system for producing reformed coal - In drying coal to be used as fuel for a coal-fired boiler, the coal is dried at a temperature of 80 to 150° C. by using combustion exhaust gas having passed through an air heater for the coal-fired boiler. Moreover, after medium-quality or low-quality coal is heated to a temperature of 300 to 500° C. at a heating rate of not less than 100° C. per minute and then cooled to a temperature of 250° C. or below at a cooling rate of not less than 50° C. per minute, the resulting reformed coal is cooled to a temperature of 70° C. or below and stored for 1 month or more in a state of isolation from the atmosphere. In producing the aforesaid reformed coal, the medium-quality or low-quality coal is heated by using combustion exhaust gas obtained at the outlet of an economizer included in the coal-fired boiler equipment or at the outlet of a denitrator included therein. | 07-16-2009 |
| 20100121093 | Method for dimethyl carbonate synthesis - There is provided a catalyst for dimethyl carbonate synthesis which has a high conversion rate under the supercritical condition of CO | 05-13-2010 |
| 20100319531 | CO2 RECOVERING APPARATUS AND METHOD | 12-23-2010 |
| 20100319532 | CO2 RECOVERY APPARATUS AND CO2 RECOVERY METHOD - Provided are a CO | 12-23-2010 |
| 20110011088 | CARBON DIOXIDE RECOVERY SYSTEM AND METHOD - Provided are high-pressure, medium-pressure, and low-pressure turbines; a boiler to generate steam for driving the turbines; a carbon dioxide recovery unit including an absorber that reduces carbon dioxide in combustion flue gas from the boiler by means of a carbon dioxide absorbent and a regenerator that regenerates an absorbent; a first auxiliary turbine that extracts steam from an inlet of the low-pressure turbine and recovers power by means of the steam thus extracted; a first steam delivery line to supply discharged steam from the first auxiliary turbine to a reboiler of the regenerator as a heat source; and a controller that controls driving of the first auxiliary turbine while keeping pressure of the discharged steam to be supplied to the reboiler within a tolerance range for the reboiler's optimum pressure corresponding to a fluctuation in an operation load of the boiler. | 01-20-2011 |
| 20110092355 | RECLAIMING APPARATUS AND RECLAIMING METHOD - A reclaiming apparatus | 04-21-2011 |
