ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,677, issued on June 17.
"Modified Allam cycle system and method for hydrocarbon recovery steam generation" was invented by Peter A. Ferner (Calgary, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for generating power and steam for a hydrocarbon recovery operation, in which a fuel gas and oxygen are combusted in a carbon dioxide working fluid in at least one combustor, the combustion products driving a turbine to generate power, and extracting heat from the turbine output stream, part of the heat used for heating the carbon dioxide working fluid before the combustion stage and part of the heat used for heating a feedwater t...