DIRECT HYDROGENATION OF METAL CARBONATE AND RELATED SALTS TO METHANOL, METHANE, AND METAL HYDROXIDE

    公开(公告)号:WO2023069236A1

    公开(公告)日:2023-04-27

    申请号:PCT/US2022/045003

    申请日:2022-09-28

    Abstract: A liquid phase process for direct utilization of inorganic metal carbonate and related salts under hydrogenative conditions to produce value-added fuels and feedstocks such as methanol, methane, carbon monoxide, and higher hydrocarbons. Advantageously, the reaction can use heterogeneous catalysts. The hydrogenation proceeds with high selectivity and yield for the desired product at relatively low temperatures, along with co-production of metal hydroxide. The metal hydroxide can be used to capture CO2, forming metal carbonates and bicarbonates that can be reused to produce more methanol and methane, hydrocarbons and carbon monoxide, closing the loop. Such a hydrogenation process can thus also be used in a "carbon capture and recycling" manner to produce renewable methane, methanol, carbon monoxide, hydrocarbons, and other carbon feedstocks from CO2 sourced from any natural and anthropogenic emissions as well as from ambient air.

Patent Agency Ranking