{"number":"US12697580B2","kindCode":"B2","documentType":"grant","title":{"original":"Oxygen-enriched combustion for natural gas combined cycle operation","english":"Oxygen-enriched combustion for natural gas combined cycle operation"},"abstract":{"original":"Systems and methods are provided for operating a combined cycle power plant while enhancing the CO2 content of the flue gas generated by the power plant. The CO2 content is enhanced by using a combination of exhaust gas recycle and oxygen-enriched combustion. The oxygen-containing flow for performing the oxygen-enriched combustion can be generated by an integrated pressure swing adsorption process that allows for production of a commercial grade nitrogen stream (95 vol % or more of N2) while also providing an oxygen-containing stream with an oxygen content between 25 vol % and 48 vol % with hi…","english":"Systems and methods are provided for operating a combined cycle power plant while enhancing the CO2 content of the flue gas generated by the power plant. The CO2 content is enhanced by using a combination of exhaust gas recycle and oxygen-enriched combustion. The oxygen-containing flow for performing the oxygen-enriched combustion can be generated by an integrated pressure swing adsorption process that allows for production of a commercial grade nitrogen stream (95 vol % or more of N2) while also providing an oxygen-containing stream with an oxygen content between 25 vol % and 48 vol % with hi…"},"applicants":["EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY"],"inventors":["David C. Calabro","Edward W. Corcoran JR.","Neel Rangnekar","Yu Wang"],"filingDate":"2023-07-10","publicationDate":"2026-08-04","grantDate":"2026-08-04","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12697580B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12697580B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12697580B2","ja":"https://downloadpatent.com/ja/patent/US12697580B2"}}