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

    发明人: Stephen A Noe

    IPC分类号: C01C1/04

    摘要: 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 FOR FERTILIZER PRODUCTION
    9.
    发明申请
    AMMONIA SYNTHESIS FOR FERTILIZER PRODUCTION 有权
    AMMONIA合成肥料生产

    公开(公告)号:US20160251229A1

    公开(公告)日:2016-09-01

    申请号:US15093998

    申请日:2016-04-08

    摘要: A method for synthesizing ammonia for agricultural fertilizers employs water (H2O) as the source of hydrogen (H2) in ammonia (NH3) synthesis, and gathers carbon monoxide (CO) as a limiting reagent for combining in a WGS (Water-Gas-Shift) reaction for producing hydrogen. The WGS reaction employs CO with the water to produce Carbon Dioxide (CO2) and H2, consuming undesirable CO from other industrial applications. A by-product of the process includes generating 1.5 mole of CO2 for each mole of ammonia synthesized. An intermediate step consumes 3 moles of hydrogen for each mole of Nitrogen (N2). The use of methane gas is avoided as the process employs CO and the WGS reaction as an exclusive source of H2 without introducing methane (CH4). A downstream synthesis of ammonia can be done through a fuel cell to produce electricity for the ammonia synthesis for further sustainability.

    摘要翻译: 用于农业肥料合成氨的方法使用水(H 2 O)作为氨(NH 3)合成中的氢(H 2)源,并且收集一氧化碳(CO)作为在WGS(水煤气转换) )反应生成氢。 WGS反应使用CO与水一起生产二氧化碳(CO2)和H2,从其他工业应用中消耗不需要的CO。 该方法的副产物包括为合成的每摩尔氨产生1.5摩尔的CO 2。 中间步骤每摩尔氮(N 2)消耗3摩尔氢。 避免使用甲烷气体,因为该方法使用CO和WGS反应作为H2的独家来源,而不引入甲烷(CH4)。 氨的下游合成可以通过燃料电池进行,以产生氨合成用于进一步可持续性的电。