Converting mist flow to annular flow in thermal cracking application
    3.
    发明授权
    Converting mist flow to annular flow in thermal cracking application 有权
    在热裂解应用中将雾流转换成环形流

    公开(公告)号:US07097758B2

    公开(公告)日:2006-08-29

    申请号:US10189618

    申请日:2002-07-03

    IPC分类号: C10G9/16

    CPC分类号: C10G9/00

    摘要: A process to increase the non-volatile removal efficiency in a flash drum in the steam cracking system. The gas flow from the convection section is converted from mist flow to annular flow before entering the flash drum to increase the removal efficiency. The conversion of gas flow from mist flow to annular flow is accomplished by subjecting the gas flow first to at least one expander and then to bends of various degrees and force the flow to change directions at least once. The change of gas flow from mist to annular helps coalesce fine liquid droplets and thus being removed from the vapor phase.

    摘要翻译: 在蒸汽裂解系统中提高闪蒸桶中的非挥发性去除效率的方法。 在进入闪蒸鼓之前,来自对流部分的气体流从雾流转换成环形流,以提高去除效率。 气流从气流到环流的转化是通过首先将气流首先流到至少一个膨胀器,然后使各种程度弯曲并迫使流动至少改变方向来实现的。 从烟雾到气体的气流的变化有助于凝结细液滴,从气相中除去。

    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel
    4.
    发明授权
    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel 有权
    使用蒸气/液体分离的气相部分冷凝来破碎含有残留物的烃原料,以减轻闪蒸/分离容器中的结垢

    公开(公告)号:US07767170B2

    公开(公告)日:2010-08-03

    申请号:US11454779

    申请日:2006-06-16

    摘要: A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.

    摘要翻译: 提供了一种用于裂化含有渣油的烃原料的方法,包括:加热原料,将加热的原料与流体和/或初级稀释蒸汽流混合以形成混合物,任选地进一步加热混合物,在闪蒸/分离 容器以形成气相和液相,通过与容器内的冷凝器接触来部分地冷凝气相,以在蒸汽内冷凝至少一些焦炭前体,同时提供冷凝物,其加入液相,除去气相 将焦炭前体含量降低为塔顶馏出物,液相作为塔底馏分,加热气相,裂解热解炉的辐射段中的气相以产生包含烯烃的流出物,并淬灭流出物并从其中回收裂化产物。 还提供了一种用于执行该过程的装置。

    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel
    5.
    发明授权
    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel 有权
    使用蒸气/液体分离的气相部分冷凝来破碎含有残留物的烃原料,以减轻闪蒸/分离容器中的结垢

    公开(公告)号:US07247765B2

    公开(公告)日:2007-07-24

    申请号:US10851494

    申请日:2004-05-21

    IPC分类号: C07C4/02 C10G9/36

    摘要: A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.

    摘要翻译: 提供了一种用于裂化含有渣油的烃原料的方法,包括:加热原料,将加热的原料与流体和/或初级稀释蒸汽流混合以形成混合物,任选地进一步加热混合物,在闪蒸/分离 容器以形成气相和液相,通过与容器内的冷凝器接触来部分地冷凝气相,以在蒸汽内冷凝至少一些焦炭前体,同时提供冷凝物,其加入液相,除去气相 将焦炭前体含量降低为塔顶馏出物,液相作为塔底馏分,加热气相,裂解热解炉的辐射段中的气相以产生包含烯烃的流出物,并淬灭流出物并从其中回收裂化产物。 还提供了一种用于执行该过程的装置。

    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel
    6.
    发明授权
    Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel 有权
    使用蒸气/液体分离的气相部分冷凝来破碎含有残留物的烃原料,以减轻闪蒸/分离容器中的结垢

    公开(公告)号:US07419584B2

    公开(公告)日:2008-09-02

    申请号:US11454338

    申请日:2006-06-16

    摘要: A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.

    摘要翻译: 提供了一种用于裂化含有渣油的烃原料的方法,包括:加热原料,将加热的原料与流体和/或初级稀释蒸汽流混合以形成混合物,任选地进一步加热混合物,在闪蒸/分离 容器以形成气相和液相,通过与容器内的冷凝器接触来部分地冷凝气相,以在蒸汽内冷凝至少一些焦炭前体,同时提供冷凝物,其加入液相,除去气相 将焦炭前体含量降低为塔顶馏出物,液相作为塔底馏分,加热气相,裂解热解炉的辐射段中的气相以产生包含烯烃的流出物,并淬灭流出物并从其中回收裂化产物。 还提供了一种用于执行该过程的装置。

    Method for processing hydrocarbon pyrolysis effluent
    8.
    发明授权
    Method for processing hydrocarbon pyrolysis effluent 有权
    烃热解流出物的处理方法

    公开(公告)号:US08074707B2

    公开(公告)日:2011-12-13

    申请号:US12835899

    申请日:2010-07-14

    IPC分类号: F28F19/00

    摘要: A method is provided for treating the effluent from a hydrocarbon pyrolysis unit processing heavier than naphtha feeds to recover heat and remove tar therefrom. The method comprises passing the gaseous effluent to at least one primary transfer line heat exchanger, thereby cooling the gaseous effluent and generating superheated steam. Thereafter, the gaseous effluent is passed through at least one secondary transfer line heat exchanger having a heat exchange surface with a liquid coating on said surface, thereby further cooling the remainder of the gaseous effluent to a temperature at which tar, formed by the pyrolysis process, condenses. The condensed tar is then removed from the gaseous effluent in at least one knock-out drum. An apparatus for carrying out the method is also provided.

    摘要翻译: 提供一种处理来自比石脑油进料重的烃热解单元的流出物的方法以回收热量并从其中除去焦油。 该方法包括将气态流出物送至至少一个一次传输线热交换器,从而冷却气态流出物并产生过热蒸汽。 此后,气态流出物通过至少一个具有在所述表面上具有液体涂层的热交换表面的二次传输线热交换器,从而进一步将剩余的气态流出物冷却至通过热解过程形成的焦油的温度 ,冷凝。 然后在至少一个分离鼓中从气态流出物中除去冷凝的焦油。 还提供了一种用于执行该方法的装置。