Cleaning agent and method for cleaning heater tubes
    3.
    发明申请
    Cleaning agent and method for cleaning heater tubes 审中-公开
    清洗剂及清洗加热管的方法

    公开(公告)号:US20070149432A1

    公开(公告)日:2007-06-28

    申请号:US11708060

    申请日:2007-02-20

    摘要: Disclosed is a cleaning agent for heater tubes, which is capable of eliminating deposits such as soot particulates in tubes installed in industrial heaters that typically use oil, coal or gas. The cleaning agent of the present invention is prepared by formulating a chemical composition comprising ammonium nitrate into pellets. Also, the present invention discloses a method of cleaning heater tubes using the cleaning agent. When being utilized for cleaning the heater tubes, the cleaning agent can improve mechanical and chemical cleaning effects, thus shortening of working time and reducing a required amount of the chemical composition, as well as preventing rapid evaporation of the chemical composition, thus increasing cleaning effect. In addition, the cleaning agent can eliminate the cementing effect of sulfur oxides or vanadic oxides in the heater tubes and thus control stably emission of NOx, by selectively containing other additives including magnesium and urea.

    摘要翻译: 公开了一种用于加热器管的清洁剂,其能够在通常使用油,煤或气体的工业加热器中安装的管中除去诸如烟灰颗粒的沉积物。 通过将包含硝酸铵的化学组合物配制成粒料来制备本发明的清洁剂。 此外,本发明公开了一种使用清洁剂清洗加热器管的方法。 当用于清洁加热器管时,清洁剂可以改善机械和化学清洁效果,从而缩短工作时间并减少所需量的化学成分,以及防止化学成分的快速蒸发,从而增加清洁效果 。 此外,清洗剂可以消除加热器管中的硫氧化物或氧化钒的固结作用,从而通过选择性地包含其它添加剂包括镁和尿素来控制NO x的稳定排放。

    Cleaning agent and method for cleaning heater tubes

    公开(公告)号:US07189289B2

    公开(公告)日:2007-03-13

    申请号:US10503302

    申请日:2003-02-06

    IPC分类号: B08B7/02

    摘要: Disclosed is a cleaning agent for heater tubes, which is capable of eliminating deposits such as soot particulates in tubes installed in industrial heaters that typically use oil, coal or gas. The cleaning agent of the present invention is prepared by formulating a chemical composition comprising ammonium nitrate into pellets. Also, the present invention discloses a method of cleaning heater tubes using the cleaning agent. When being utilized for cleaning the heater tubes, the cleaning agent can improve mechanical and chemical cleaning effects, thus shortening of working time and reducing a required amount of the chemical composition, as well as preventing rapid evaporation of the chemical composition, thus increasing cleaning effect. In addition, the cleaning agent can eliminate the cementing effect of sulfur oxides or vanadic oxides in the heater tubes and thus control stably emission of NOx, by selectively containing other additives including magnesium and urea.

    Cleaning agent and method for cleaning heater tubes
    5.
    发明申请
    Cleaning agent and method for cleaning heater tubes 有权
    清洗剂及清洗加热管的方法

    公开(公告)号:US20050143279A1

    公开(公告)日:2005-06-30

    申请号:US10503302

    申请日:2003-02-06

    摘要: Disclosed is a cleaning agent for heater tubes, which is capable of eliminating deposits such as soot particulates in tubes installed in industrial heaters that typically use oil, coal or gas. The cleaning agent of the present invention is prepared by formulating a chemical composition comprising ammonium nitrate into pellets. Also, the present invention discloses a method of cleaning heater tubes using the cleaning agent. When being utilized for cleaning the heater tubes, the cleaning agent can improve mechanical and chemical cleaning effects, thus shortening of working time and reducing a required amount of the chemical composition, as well as preventing rapid evaporation of the chemical composition, thus increasing cleaning effect. In addition, the cleaning agent can eliminate the cementing effect of sulfur oxides or vanadic oxides in the heater tubes and thus control stably emission of NOx, by selectively containing other additives including magnesium and urea.

    摘要翻译: 公开了一种用于加热器管的清洁剂,其能够在通常使用油,煤或气体的工业加热器中安装的管中除去诸如烟灰颗粒的沉积物。 通过将包含硝酸铵的化学组合物配制成粒料来制备本发明的清洁剂。 此外,本发明公开了一种使用清洁剂清洗加热器管的方法。 当用于清洁加热器管时,清洁剂可以改善机械和化学清洁效果,从而缩短工作时间并减少所需量的化学成分,以及防止化学成分的快速蒸发,从而增加清洁效果 。 此外,清洗剂可以消除加热器管中的硫氧化物或氧化钒的固结作用,从而通过选择性地包含其它添加剂包括镁和尿素来控制NO x的稳定排放。

    Cleaning composition for removing fouling and a method for using the same
    6.
    发明授权
    Cleaning composition for removing fouling and a method for using the same 有权
    用于除污结垢的清洁组合物及其使用方法

    公开(公告)号:US06187109B1

    公开(公告)日:2001-02-13

    申请号:US09610711

    申请日:2000-07-06

    IPC分类号: B08B304

    CPC分类号: C11D7/24 C11D11/0041 F28G9/00

    摘要: Disclosed is a cleaning composition useful for dislodging fouling from process lines of oil refining or petrochemical plants and a cleaning method using the composition. The cleaning composition comprises 0.01 to 1 wt % of a C8 aromatic compound, 75 to 85 wt % of a C9 aromatic compound and 14 to 24 wt % of a C10 aromatic compound. When applied to the process lines, the composition is mixed at an amount of 2 to 20 vol % with Light cycle oil or light gas oil. Chemical cleaning with the composition effectively removes the fouling formed within the process lines and heat exchangers of oil refining or petrochemical plants, and recovers the processing capacity of heat exchangers to the start of run level, bringing about a significant economic profit.

    摘要翻译: 公开了一种用于从炼油或石油化工厂的生产线中除去污垢的清洁组合物和使用该组合物的清洗方法。 清洁组合物包含0.01至1重量%的C 8芳族化合物,75至85重量%的C 9芳族化合物和14至24重量%的C 10芳族化合物。 当应用于生产线时,组合物以2至20体积%的量与轻循环油或轻质瓦斯油混合。 用组合物进行化学清洗可有效去除炼油或石油化工厂的生产线和热交换器中形成的污垢,并将热交换器的加工能力恢复到运行水平的开始,带来显着的经济利润。