Taiwan Power has been granted a patent for a method to regenerate deactivated denitration catalysts. The process involves using a washing fluid with water and carbon dioxide bubbles. This innovative method aims to improve the efficiency of denitration catalysts in power plants. GlobalData’s report on Taiwan Power gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Taiwan Power, Smart grids was a key innovation area identified from patents. Taiwan Power's grant share as of January 2024 was 83%. Grant share is based on the ratio of number of grants to total number of patents.
Regenerating deactivated denitration catalyst using water and carbon dioxide
A recently granted patent (Publication Number: US11883812B2) discloses a method for regenerating a deactivated denitration catalyst. The method involves preparing a washing fluid comprising a water-containing liquid and carbon dioxide bubbles, and subjecting the deactivated catalyst to treatment with this washing fluid. Importantly, the washing fluid is prepared by mixing the water-containing liquid with carbon dioxide gas, excluding air.
In addition to the unique preparation of the washing fluid, the method includes specific parameters such as subjecting the mixture to a pressure ranging from 1 kgf/cm2 to 8 kgf/cm2 to ensure the carbon dioxide bubbles have a predetermined average size. The water-containing liquid used in the process includes water and an active material selected from various salts such as vanadium, tungsten, manganese, cerium, copper, and iron salts. Furthermore, the concentration of the active material in the liquid ranges from 0.005 M to 0.05 M. The method also involves subjecting the deactivated catalyst to an ultrasonic treatment during the washing process, highlighting the comprehensive approach to catalyst regeneration outlined in the patent.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
