Samsung Engineering has been granted a patent for an innovative ammonia decomposition catalyst and method. The catalyst includes activated carbon with a specific surface area of 850 m2/g or more, loaded with cerium and zirconium, with a higher amount of cerium. GlobalData’s report on Samsung Engineering gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Samsung Engineering, AI assisted CAD was a key innovation area identified from patents. Samsung Engineering's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Ammonia decomposition catalyst with activated carbon and cerium metal

Source: United States Patent and Trademark Office (USPTO). Credit: Samsung Engineering Co Ltd

A recently granted patent (Publication Number: US11883795B2) discloses an innovative catalyst for the decomposition of ammonia. The catalyst comprises an activated carbon carrier with a specific surface area of 850 m2/g or more, loaded with a combination of cerium (Ce) and zirconium (Zr) metals. Notably, the amount of cerium is higher than that of zirconium in the catalyst. Additionally, the patent specifies that the metal loading on the carrier should be in the range of about 0.15 parts to about 10 parts by weight based on 100 parts by weight of the carrier.

Furthermore, the patent describes a method for decomposing ammonia in an ammonia-containing gas under specific conditions. The method involves the use of ozone and the aforementioned catalyst at a relative humidity of about 70% or higher and a room temperature of about 30°C or lower. The decomposition reaction follows Reaction Scheme 1, where 2 molecules of ammonia react with ozone to produce nitrogen and water. This method offers a novel approach to efficiently decompose ammonia in gas streams, potentially finding applications in various industrial processes where the removal of ammonia is crucial for environmental and operational reasons.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.