Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions
    7.
    发明授权
    Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions 有权
    碳氢裂解炉采用蒸汽添加降低单氮氧化物排放

    公开(公告)号:US08703064B2

    公开(公告)日:2014-04-22

    申请号:US13066211

    申请日:2011-04-08

    Applicant: David C. Payne

    Inventor: David C. Payne

    Abstract: An apparatus and method is presented for reducing mono nitrogen oxide emissions in a hydrocarbon processing furnace. A preferred embodiment hydrocarbon cracking furnace includes a firebox with a set of wall burners and a set of floor burners, the floor burners comprising secondary burner tips burning a fuel-rich mixture and positioned below primary burner tips burning a fuel-lean mixture. A portion of flue gases are recirculated from the primary burner combustion area to the secondary burner combustion area and back to the primary burner combustion area. The floor burners further comprise a set of steam injection ports that inject steam into a conical flow to contact flames at the primary burner tips, reducing flame temperature and thereby reducing thermal NOx. The steam injection ports are positioned in the firebox above the primary burner tips.

    Abstract translation: 提出了用于减少烃加工炉中的单氮氧化物排放的装置和方法。 优选的实施方案碳氢化合物裂解炉包括具有一组壁式燃烧器和一组地板燃烧器的火箱,地板燃烧器包括燃烧富燃料混合物并定位在燃烧贫燃料混合物的主燃烧器尖端下方的辅助燃烧器尖端。 烟气的一部分从主燃烧器燃烧区再循环到二次燃烧器燃烧区域并返回到主燃烧器燃烧区域。 地板燃烧器还包括一组蒸汽注入口,其将蒸汽注入到锥形流中以接触主燃烧器尖端处的火焰,降低火焰温度并由此减少热NOx。 蒸汽喷射口位于主燃烧器尖端上方的火箱中。

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