Fluid injection nozzle for fluid bed reactors
    2.
    发明授权
    Fluid injection nozzle for fluid bed reactors 有权
    流化床反应器流体注射喷嘴

    公开(公告)号:US08999246B2

    公开(公告)日:2015-04-07

    申请号:US13109296

    申请日:2011-05-17

    摘要: The liquid feed nozzle assemblies for a circulating fluid bed reactor comprise (i) a throttle body premixer to combine liquid feed with atomization steam upstream of a nozzle body to form a liquid feed/steam mixture comprising liquid feed droplets; (ii) a conduit connected to the venturi premixer and to a discharge nozzle body to convey a flow of the liquid/steam mixture created by the premixer to the nozzle body; (iii) a discharge nozzle connected to the flow conduit to shear the liquid feed/steam mixture to create liquid feed droplets of reduced size and (iv) a disperser at the outlet of the discharge nozzle to provide a spray jet of liquid feed having an increased surface area relative to a cylindrical jet. The nozzle assembles are particularly useful in fluid coking units using heavy oil feeds such a tar sands bitumen.

    摘要翻译: 用于循环流化床反应器的液体进料喷嘴组件包括(i)节流阀体预混合器,以将液体进料与喷嘴体上游的雾化蒸汽组合以形成包含液体进料液滴的液体进料/蒸汽混合物; (ii)连接到文丘里预混合器和排放喷嘴体的导管,用于将由预混合器产生的液体/蒸汽混合物的流动传送到喷嘴体; (iii)排放喷嘴,其连接到流动管道以剪切液体进料/蒸汽混合物以产生尺寸减小的液体进料液滴;以及(iv)在排放喷嘴出口处的分散器,以提供具有 相对于圆柱形射流增加表面积。 喷嘴组件在使用重油进料如沥青砂沥青的流体焦化装置中特别有用。

    Method for the preparation of a hardening salt in piece form and product
    3.
    发明授权
    Method for the preparation of a hardening salt in piece form and product 失效
    用于制备片状和产品的硬化盐的方法

    公开(公告)号:US5453109A

    公开(公告)日:1995-09-26

    申请号:US274428

    申请日:1994-07-13

    CPC分类号: C01C3/14 C21D1/46

    摘要: A method for the preparation of a salt mixture useful for hardening steel parts, including of potassium cyanate, potassium carbonate and sodium carbonate, wherein 2.2 to 2.3 moles of urea is first reacted with 1 mole of potassium carbonate to form potassium cyanate. The escaping ammonia is converted with formaldehyde into hexamethylenetetramine. The reaction product, which is potassium cyanate and potassium carbonate, is ground, mixed with powdered sodium carbonate and pressed at between 80.degree. and 230.degree. C. into shaped pieces.

    摘要翻译: 制备用于硬化钢部件(包括氰酸钾,碳酸钾和碳酸钠)的盐混合物的方法,其中2.2至2.3摩尔的尿素首先与1摩尔碳酸钾反应以形成氰酸钾。 逸出的氨被甲醛转化成六亚甲基四胺。 将氰酸钾和碳酸钾的反应产物研磨,与碳酸钠粉末混合并在80℃和230℃之间压制成成型片。