REMOVAL OF NITROGEN COMPOUNDS FROM FCC DISTILLATE
    1.
    发明申请
    REMOVAL OF NITROGEN COMPOUNDS FROM FCC DISTILLATE 有权
    从FCC馏分中除去硝酸化合物

    公开(公告)号:US20110132806A1

    公开(公告)日:2011-06-09

    申请号:US12908091

    申请日:2010-10-20

    IPC分类号: C10G67/00 C10G29/20

    摘要: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.

    摘要翻译: 一种从FCC原料或催化裂化的馏出物(包括FCC循环油)中除去氮化合物的方法,其中使用甲醛选择性地将有机杂环氮物质在FCC进料或FCC馏出物中偶联,以在沸点范围内形成较高沸点的偶联产物 馏出物 去除含氮化合物改善了馏出物馏分所需的随后加氢脱硫步骤的操作以符合低硫标准。 甲醛优选以多聚甲醛的形式使用。 循环油馏分中的含氮化合物与甲醛的反应在FCC主塔的循环油循环回路中方便地进行。

    Removal of nitrogen compounds from FCC distillate
    2.
    发明授权
    Removal of nitrogen compounds from FCC distillate 有权
    从FCC馏出物中除去氮化合物

    公开(公告)号:US08673134B2

    公开(公告)日:2014-03-18

    申请号:US12908091

    申请日:2010-10-20

    IPC分类号: C10G29/24

    摘要: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.

    摘要翻译: 一种从FCC原料或催化裂化的馏出物(包括FCC循环油)中除去氮化合物的方法,该方法是使用甲醛选择性地将FCC原料中的有机杂环氮物质或FCC馏出物结合,从而在FCC沸点范围内形成较高沸点的偶联产物 馏出物 去除含氮化合物改善了馏出物馏分所需的随后加氢脱硫步骤的操作以符合低硫标准。 甲醛优选以多聚甲醛的形式使用。 循环油馏分中的含氮化合物与甲醛的反应在FCC主塔的循环油循环回路中方便地进行。