HEAT EXCHANGE DEVICE AND A METHOD OF MANUFACTURING THE SAME
    1.
    发明申请
    HEAT EXCHANGE DEVICE AND A METHOD OF MANUFACTURING THE SAME 审中-公开
    热交换装置及其制造方法

    公开(公告)号:US20120203049A1

    公开(公告)日:2012-08-09

    申请号:US13498834

    申请日:2011-02-08

    Abstract: A method of manufacturing a heat exchange device having at least one heat exchange tube is disclosed. The method includes: determining a peak heat flux area of the at least one heat exchange tube; and disposing in the at least one heat exchange tube an flow enhancement device for creating a desirable flow pattern in a process fluid flowing through the at least one heat exchange tube; wherein the flow enhancement device is disposed in the at least one heat exchange tube upstream of or at the determined peak heat flux area of the at least one heat exchange tube.

    Abstract translation: 公开了一种制造具有至少一个热交换管的热交换装置的方法。 该方法包括:确定至少一个热交换管的峰值热通量面积; 并且在所述至少一个热交换管中设置流动增强装置,用于在流过所述至少一个热交换管的工艺流体中产生期望的流动模式; 其中所述流动增强装置设置在所述至少一个热交换管的所述至少一个热交换管的确定的峰值热通量区域的上游或所述至少一个热交换管中。

    Pyrolysis heater
    2.
    发明授权
    Pyrolysis heater 有权
    热解加热器

    公开(公告)号:US07172412B2

    公开(公告)日:2007-02-06

    申请号:US10717087

    申请日:2003-11-19

    CPC classification number: C10G9/20 C10G2400/20

    Abstract: A pyrolysis heater particularly for the cracking of hydrocarbons in the production of olefins has a burner arrangement in the firebox which includes staged combustion low NOx hearth burners firing upwardly in the firebox adjacent to the walls. Wall stabilizing gas fuel injection tips, located at an elevation above the hearth burners, inject fuel upwardly between the walls and the flame from the hearth burners. This prevents rollover of the flame onto the process heater coil and overheating of the coil.

    Abstract translation: 特别是用于烯烃生产中烃的裂解的热解加热器在燃烧箱中具有燃烧器装置,其包括在与壁相邻的火箱内向上燃烧的分段燃烧的低温炉底燃烧器。 墙壁稳定气体燃料喷射尖端位于炉膛燃烧器上方的高度处,在炉壁燃烧器的壁和火焰之间向上注入燃料。 这防止火焰向过程加热器线圈翻转并且线圈过热。

    Cracking furnace with more uniform heating

    公开(公告)号:US07004085B2

    公开(公告)日:2006-02-28

    申请号:US10120072

    申请日:2002-04-10

    CPC classification number: C10G9/20 C10G2400/20

    Abstract: A cracking furnace for the pyrolysis heating of an organic feedstock includes a heating section and at least one convection section. In one embodiment the furnace includes first and second convection sections positioned along opposite sides of the heating section. The openings for admitting flue gas to the convection sections can be at the top or the bottom of the heating section. In another embodiment the furnace includes a plurality of passageways for the communication of flue gas from the heating section to the convection section. The passageways can be positioned at the top or the bottom of the heating section. The passageways provide a more even flow of flue gas through the heating section by preventing recirculation of the flue gas within the heating chamber.

    Low pressure recovery of olefins from refinery offgases
    4.
    发明授权
    Low pressure recovery of olefins from refinery offgases 失效
    从精炼废气中低压回收烯烃

    公开(公告)号:US5502971A

    公开(公告)日:1996-04-02

    申请号:US370005

    申请日:1995-01-09

    Abstract: A low pressure cryogenic process is disclosed for recovering C.sub.2 and heavier hydrocarbons and particularly olefins from a refinery offgas containing hydrogen, methane, nitrogen oxide in addition to the C.sub.2 and heavier hydrocarbons. The conventional high pressures are eliminated and the temperatures are maintained higher than the temperature at which nitrated gums can form while still maintaining high olefin recovery. The feed is deethanized or depropanized to remove the C.sub.4 and heavier hydrocarbons at a temperature above the nitrated gum formation temperature. The overhead is then demethanized in a column using an enriching zone above the rectifying zone with a feed of C.sub.2 or heavier paraffins between these two zones.

    Abstract translation: 公开了一种低压低温方法,用于从含有氢,甲烷,氮氧化物以及C2和较重烃的炼油厂废气中回收C2和较重烃,特别是烯烃。 消除常规的高压,并且保持温度高于可以形成硝化胶的温度,同时仍保持高的烯烃回收率。 在高于硝化胶的形成温度的温度下,将进料脱乙烷或脱丙烷以除去C4和较重的烃。 然后使用上述两个区域之间的C2或更重的石蜡进料,在精馏区上方的富集区在柱中使塔顶脱甲烷。

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