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    Process for reducing vapor condensation in flash/separation apparatus overhead during steam cracking of hydrocarbon feedstocks
    41.
    发明授权
    Process for reducing vapor condensation in flash/separation apparatus overhead during steam cracking of hydrocarbon feedstocks 有权
    用于在烃原料的蒸汽裂解期间减少闪蒸/分离装置顶部蒸气冷凝的方法

    公开(公告)号：US07470409B2

    公开(公告)日：2008-12-30

    申请号：US11581494

    申请日：2006-10-16

    申请人： Richard C. Stell

    发明人： Richard C. Stell

    IPC分类号： B01J10/00

    CPC分类号： C10G9/20

    摘要： A process for reducing fouling during cracking of a hydrocarbon feedstock containing resid is provided which comprises: introducing a mixture stream of heated hydrocarbon feedstock mixed with steam to a flash/separation apparatus to form i) a vapor phase at its dew point which partially cracks causing a temperature decrease and partial condensation of said vapor phase in the absence of added heat, and ii) a liquid phase. Partial condensation is reduced by adding a heated vaporous diluent, e.g., light hydrocarbon or superheated steam, to the flash/separation apparatus to an extent sufficient to at least partially compensate for the temperature decrease and to dilute and superheat the vapor phase, prior to removing the vapor phase as overhead for subsequent cracking and recovery of cracked product. An apparatus for carrying out the process is also provided.

    摘要翻译： 提供了一种在含有渣油的烃原料开裂期间减少结垢的方法，其包括：将与蒸汽混合的加热烃原料的混合物流引入闪蒸/分离装置以形成i）在其露点处产生部分裂纹的气相 在没有加热的情况下所述气相的温度降低和部分冷凝，和ii）液相。 通过向闪蒸/分离设备添加加热的蒸汽稀释剂，例如轻质烃或过热蒸汽来减少部分冷凝，其程度足以至少部分地补偿温度降低并在蒸发相之前稀释和过热气相 气相作为破裂产物后续开裂和回收的开销。 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
    42.
    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

    申请人： Richard C. Stell ,  George Stephens ,  Jennifer L. Bancroft ,  John R. Messinger

    发明人： Richard C. Stell ,  George Stephens ,  Jennifer L. Bancroft ,  John R. Messinger

    IPC分类号： C10G9/26 ,  C10G15/00 ,  C10G9/36 ,  C10G9/14 ,  C07C4/02

    CPC分类号： C10G9/00 ,  B01D3/06 ,  B01D5/003 ,  B01D5/0069 ,  B01D19/0036 ,  C10G9/20

    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。

    Apparatus and process for controlling temperature of heated feed directed to a flash drum whose overhead provides feed for cracking
    43.
    发明授权
    Apparatus and process for controlling temperature of heated feed directed to a flash drum whose overhead provides feed for cracking 有权
    用于控制加热进料温度的装置和方法，所述加热的进料被引导到闪蒸罐，所述闪蒸鼓的塔顶提供用于裂化的进料

    公开(公告)号：US07413648B2

    公开(公告)日：2008-08-19

    申请号：US11445006

    申请日：2006-06-01

    申请人： Richard C. Stell ,  James N. McCoy

    发明人： Richard C. Stell ,  James N. McCoy

    IPC分类号： C10G9/36 ,  C10G9/14 ,  C10G9/00 ,  C07C4/02

    CPC分类号： C10G9/20 ,  C10G2300/1033 ,  C10G2300/1044 ,  C10G2300/1051 ,  C10G2300/107 ,  C10G2300/805 ,  C10G2300/807 ,  C10G2400/20

    摘要： An apparatus and process are provided for cracking hydrocarbonaceous feed, wherein the temperature of heated effluent directed to a vapor/liquid separator, e.g., flash drum, whose overhead is subsequently cracked, can be controlled within a range sufficient so the heated effluent is partially liquid, say, from about 260 to about 540° C. (500 to 1000° F.). This permits processing of a variety of feeds containing resid with greatly differing volatilities, e.g., atmospheric resid and crude at higher temperature and dirty liquid condensates, at lower temperatures. The temperature can be lowered as needed by: i) providing one or more additional downstream feed inlets to a convection section, ii) increasing the ratio of water/steam mixture added to the hydrocarbonaceous feed, iii) using a high pressure boiler feed water economizer to remove heat, iv) heating high pressure steam to remove heat, v) bypassing an intermediate portion of the convection section used, e.g., preheat rows of tube banks, and/or vi) reducing excess oxygen content of the flue gas providing convection heat.

    摘要翻译： 提供了一种用于裂解含烃原料的装置和方法，其中引导到蒸汽/液体分离器（例如，其塔顶馏出物被破裂的闪蒸鼓）的加热流出物的温度可以控制在足够的范围内，使得加热的流出物是部分液体 例如约260至约540℃（500至1000°F）。 这允许在较低温度下处理含有具有极大不同挥发性的残渣的各种进料，例如高温度下的常压渣油和粗油，以及脏液体冷凝物。 根据需要，可以根据需要降低温度：i）向对流部分提供一个或多个附加的下游进料入口，ii）增加添加到烃类进料中的水/蒸汽混合物的比例，iii）使用高压锅炉给水节能器 以除去热量，iv）加热高压蒸汽以除去热量，v）绕过所使用的对流段的中间部分，例如预热排管排，和/或vi）减少提供对流热的烟道气的过量氧含量 。

    Steam cracking of light hydrocarbon feedstocks containing non-volatile components and/or coke precursors
    44.
    发明授权
    Steam cracking of light hydrocarbon feedstocks containing non-volatile components and/or coke precursors 有权
    含有非挥发性组分和/或焦炭前体的轻烃原料的蒸汽裂化

    公开(公告)号：US07297833B2

    公开(公告)日：2007-11-20

    申请号：US10851500

    申请日：2004-05-21

    申请人： David Beattie ,  Richard C. Stell ,  Alok Srivastava ,  James N. McCoy

    发明人： David Beattie ,  Richard C. Stell ,  Alok Srivastava ,  James N. McCoy

    IPC分类号： C10G9/14 ,  C07C4/04

    CPC分类号： C10G9/00 ,  C10G9/20

    摘要： A process for cracking a light hydrocarbon feedstock containing non-volatile components and/or coke precursors, wherein a heavy hydrocarbon feedstock is added to the contaminated light hydrocarbon feedstock to form a contaminated hydrocarbon feedstock blend which is thereafter separated into a vapor phase and a liquid phase by flashing in a flash/separation vessel, separating and cracking the vapor phase, and recovering cracked product. The heavy hydrocarbon feedstock allows operation of the flash/separation vessel at a higher temperature, within the operating temperature range of the separation vessel.

    摘要翻译： 一种用于裂化含有非挥发性组分和/或焦炭前体的轻烃原料的方法，其中将重质烃原料加入到受污染的轻烃原料中以形成污染的烃原料混合物，之后将其分离成气相和液体 在闪蒸/分离容器中闪烁，分离和裂化气相，并回收裂化产物。 重烃原料允许闪蒸/分离容器在分离容器的操作温度范围内的较高温度下操作。