Shell has patented a process for converting carbon dioxide and hydrogen into carbon monoxide, water, and hydrogen without the need for a catalyst. By utilizing a reverse water gas shift reaction at high temperatures, this method can reduce the carbon footprint of industrial technologies and produce synthesis gas efficiently. GlobalData’s report on Shell 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 Shell, Shell's grant share as of March 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.
Process for converting co2 and h2 to co, h2o, h2
A recently granted patent (Publication Number: US11964872B2) discloses a novel process for converting carbon dioxide and hydrogen into a product stream containing carbon monoxide, water, and hydrogen. The process involves conducting a reverse water gas shift reaction at elevated temperatures without the presence of a catalyst in the reaction vessel. The key aspect of the process includes introducing separate feed streams of carbon dioxide, a hydrogen-rich gas stream, and an oxygen-rich gas stream into the reaction vessel, with the hydrogen-rich gas stream entering at a temperature between 15 and 450°C. The heating energy required for the reaction is provided by a combustion reaction between the hydrogen and oxygen in the respective gas streams, with the temperature in the reaction vessel maintained between 1000 and 1500°C by adjusting the molar ratio of hydrogen to oxygen.
Furthermore, the patented process includes specific configurations for introducing the gas streams into the reaction vessel, such as using a burner with coaxial channels for separate gas stream introduction. The product stream leaving the reaction vessel is cooled with water to obtain a mixture of carbon monoxide, hydrogen, steam, and potentially unconverted carbon dioxide. Additionally, the process incorporates the use of steam produced during cooling to preheat various feed gas streams, enhancing overall efficiency. The patent also covers the utilization of hydrogen and oxygen obtained from a water splitter, with provisions for liquefying and re-gasifying the oxygen-rich gas stream before use. Moreover, the separation and cooling of steam from the product mixture to produce liquid water for recycling in the water splitter are highlighted as key steps in the process.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.
