AMMONIA SYNTHESIS CONVERTER AND METHOD FOR SMALL PRODUCTION UNITS

    公开(公告)号:US20230264966A1

    公开(公告)日:2023-08-24

    申请号:US17815848

    申请日:2022-07-28

    Inventor: Stephen A Noe

    CPC classification number: C01C1/0417 C01C1/0411 C01C1/0482

    Abstract: An ammonia synthesis converter for small production units which provides full access for routine maintenance and catalyst replacement while providing adequate catalyst pressure drop to ensure kinetic performance and reduce heat leak from the catalyst beds. A shell has a removable top head and an annular basket is removably mounted in the shell. First and second catalyst beds are disposed in the annular zone of the basket for axial down-flow in series. A quench gas is introduced into effluent from the first catalyst bed and the resulting mixture into a top of the second catalyst bed. A feed-effluent interchanger in the inner basket zone is adapted to receive effluent from the second catalyst bed and indirectly heat a feed to the first catalyst bed. Also, methods of operating and servicing the converter.

    Ammonia synthesis converter and method for small production units

    公开(公告)号:US11718535B1

    公开(公告)日:2023-08-08

    申请号:US17815848

    申请日:2022-07-28

    Inventor: Stephen A Noe

    Abstract: An ammonia synthesis converter for small production units which provides full access for routine maintenance and catalyst replacement while providing adequate catalyst pressure drop to ensure kinetic performance and reduce heat leak from the catalyst beds. A shell has a removable top head and an annular basket is removably mounted in the shell. First and second catalyst beds are disposed in the annular zone of the basket for axial down-flow in series. A quench gas is introduced into effluent from the first catalyst bed and the resulting mixture into a top of the second catalyst bed. A feed-effluent interchanger in the inner basket zone is adapted to receive effluent from the second catalyst bed and indirectly heat a feed to the first catalyst bed. Also, methods of operating and servicing the converter.

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