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公开(公告)号：US08057663B2
公开(公告)日：2011-11-15
申请号：US12474801
申请日：2009-05-29
IPC分类号： C10G9/36
CPC分类号： C10G9/20 , C10G2300/802 , C10G2300/807
摘要： A process and apparatus for cracking a hydrocarbon feed in a steam cracking furnace by withdrawing a resid-rich stream from a resid knockout vessel and recycling the resid-rich stream through a convection heating section of the furnace.
摘要翻译： 一种用于在蒸汽裂解炉中裂解烃进料的方法和设备，其通过从残渣排出容器中排出富余渣油流并将富余渣流通过炉的对流加热段再循环。
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公开(公告)号：US07718049B2
公开(公告)日：2010-05-18
申请号：US11177076
申请日：2005-07-08
CPC分类号： C10G9/00 , C10G9/002 , C10G2300/1033 , C10G2300/1044 , C10G2300/1051 , C10G2300/1059 , C10G2300/107 , C10G2300/1077 , C10G2300/206
摘要： A method is disclosed for treating gaseous effluent from a hydrocarbon pyrolysis unit to provide steam cracked tar of reduced asphaltene and toluene insolubles content. The method is suitable for preparing reduced viscosity tar useful as a fuel blending stock, or feedstock for producing carbon black, while reducing or eliminating the need for externally sourced lighter aromatics additives to meet viscosity specifications. The method comprises drawing steam cracked tar from a separation vessel, e.g., a primary fractionator or tar knock-out drum, cooling the tar, and returning it to the separation vessel to effect lower overall tar temperatures within the separation vessel, in order to reduce viscosity increasing condensation reactions. An apparatus for carrying out the method is also provided.
摘要翻译： 公开了一种用于处理来自烃热解单元的气态流出物以提供减少的沥青质和甲苯不溶物含量的蒸汽裂化焦油的方法。 该方法适用于制备用作燃料混合原料的还原粘度焦油或用于生产炭黑的原料，同时减少或消除对来自外部的较轻芳烃添加剂以满足粘度规格的需要。 该方法包括从分离容器（例如主分馏器或焦油脱除鼓）中抽出蒸汽裂解焦油，冷却焦油，并将其返回到分离容器中以降低分离容器内的总焦油温度，以便减少 粘度增加缩合反应。 还提供了一种用于执行该方法的装置。
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公开(公告)号：US07481871B2
公开(公告)日：2009-01-27
申请号：US11009661
申请日：2004-12-10
IPC分类号： B01D19/00
CPC分类号： B01D3/22 , B01D3/14 , B01D3/38 , B01D3/4294 , C10G2400/20 , Y02P30/40
摘要： A vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a vertical drum with a side inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a lower section in communication with a cylindrical boot of less diameter than the drum, the boot comprising sufficient gas-liquid contact surface, e.g., that provided by one or more sheds, baffles and/or distillation trays, to provide at least a partial theoretical distillation stage, and a lower portion for receiving liquid from the drum, a lower outlet for removing the liquid, and an inlet for introducing a stripping gas, such as steam, hydrogen, light crackable hydrocarbon, and/or methane, below the distillation tray and preferably above the level of liquid in the boot.
摘要翻译： 用于处理烃和蒸汽的蒸汽/液体混合物流的蒸汽/液体分离装置包括具有侧入口以引入碳氢化合物/蒸气混合物的立式鼓，顶部蒸汽出口和与圆柱形套管 小于鼓的直径，靴子包括足够的气液接触表面，例如由一个或多个棚子，挡板和/或蒸馏塔板提供的，以提供至少部分理论蒸馏阶段的底部和用于接收液体的下部 从滚筒，用于除去液体的下出口和用于在蒸馏塔下方引入诸如蒸汽，氢气，轻质裂解烃和/或甲烷的汽提气体的入口，优选地在引导器中的液体水平之上 。
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24.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：US07431803B2
公开(公告)日：2008-10-07
申请号：US11581683
申请日：2006-10-16
申请人： Richard C. Stell
发明人： Richard C. Stell
CPC分类号： C10G9/20
摘要： A flash/separation vessel for treating hydrocarbon feedstock containing resid to provide a liquid phase and a vapor phase has: (A) an inlet for introducing hydrocarbon feedstock; (B) an inlet for adding heated vaporous diluent to the vessel to dilute the vapor phase; (C) a flash/separation vessel overhead outlet for removing the vapor phase as overhead; and (D) a flash/separation vessel liquid outlet for removing liquid phase as bottoms from the vessel.
摘要翻译： 用于处理含有渣油的烃原料以提供液相和气相的闪蒸/分离容器具有：（A）用于引入烃原料的入口; （B）用于将加热的蒸汽稀释剂加入到容器中以稀释气相的入口; （C）闪蒸/分离容器塔顶出口，用于除去气相作为塔顶; 和（D）用于从容器中去除液相作为底部的闪蒸/分离容器液体出口。
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25.发明授权Process for reducing fouling from flash/separation apparatus during cracking of hydrocarbon feedstocks 有权用于在烃原料开裂期间减少闪蒸/分离装置的结垢的方法公开(公告)号：US07408093B2
公开(公告)日：2008-08-05
申请号：US10891981
申请日：2004-07-14
IPC分类号： C07C4/04
摘要： Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating said hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam to form a mixture stream; (c) introducing the mixture stream to a flash/separation apparatus to form i) a vapor phase comprising coke precursors existing as uncoalesced condensate, and ii) a liquid phase; (d) removing the vapor phase as overhead and the liquid phase as bottoms from the flash/separation apparatus; (e) treating the overhead by contacting with a condensing means downstream of the flash/separation apparatus to at least partially coalesce the coke precursors to provide residue hydrocarbon liquid, and subsequently removing the hydrocarbon liquid; (f) heating the treated overhead to provide a heated vapor phase (g) cracking the heated vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, the pyrolysis furnace comprising a radiant section and a convection section; and (h) quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.
摘要翻译： 含有渣油的烃原料通过包括以下步骤的方法裂化：（a）加热所述烃原料; （b）将加热的烃原料与蒸汽混合以形成混合物流; （c）将混合物流引入闪蒸/分离装置以形成i）包含作为未经缩聚的冷凝物存在的焦炭前体的气相，和ii）液相; （d）从闪蒸/分离装置中除去气相作为塔顶馏出物和液相作为底部物质; （e）通过与闪蒸/分离装置下游的冷凝装置接触来处理塔顶馏出物，以至少部分地聚结焦炭前体以提供残余烃液体，随后除去烃液体; （f）加热经处理的塔顶馏出物以提供加热的气相（g）在热解炉的辐射段中裂化加热的气相以产生包含烯烃的流出物，所述热解炉包括辐射段和对流段; 和（h）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。
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26.发明授权Process for reducing fouling from flash/separation apparatus during cracking of hydrocarbon feedstocks 有权用于在烃原料开裂期间减少闪蒸/分离装置的结垢的方法公开(公告)号：US07358413B2
公开(公告)日：2008-04-15
申请号：US10891795
申请日：2004-07-14
CPC分类号： C10G9/00 , C10G9/20 , C10G2300/107
摘要： Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating the hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam and optionally water to form a mixture stream; (c) introducing the mixture stream to a flash/separation apparatus to form i) a vapor phase at its dew point which partially cracks and loses/or heat causing a temperature decrease and partial condensation of the vapor phase in the absence of added heat to provide coke precursors existing as uncoalesced condensate, and ii) a liquid phase; (d) removing the vapor phase as overhead and the liquid phase as bottoms from the flash/separation apparatus; (e) treating the overhead by contacting with a hydrocarbon-containing nucleating liquid substantially free of resid and comprising components boiling at a temperature of at least about 260° C. (500° F.) under conditions sufficient to at least partially coalesce the coke precursors to provide coke precursor liquid, in the form of hydrocarbon droplets or a continuous hydrocarbon liquid phase; (f) collecting and removing the droplets; (g) directing the treated overhead from which the droplets are removed, to a heater to provide a heated vapor phase; (h) cracking the heated vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, the pyrolysis furnace comprising a radiant section and a convection section; and (i) quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.
摘要翻译： 含有渣油的烃原料通过包括以下步骤的方法裂化：（a）加热烃原料; （b）将加热的烃原料与蒸汽和任选的水混合以形成混合物流; （c）将混合物流引入闪蒸/分离装置以形成i）其露点处的气相，其在不存在加热的情况下部分地裂开和损失/或加热导致气相的温度降低和部分冷凝， 提供作为未聚结的冷凝物存在的焦炭前体，和ii）液相; （d）从闪蒸/分离装置中除去气相作为塔顶馏出物和液相作为底部物质; （e）通过与基本上不含渣油的含烃成核液体接触来处理塔顶馏出物，并且包括在足以使焦炭至少部分聚结的条件下在至少约260℃（500°F）的温度下沸腾的组分 以烃液滴或连续烃液相的形式提供焦炭前体液体的前体; （f）收集和去除液滴; （g）将经除去的液滴处理的塔顶导向加热器以提供加热的气相; （h）在热解炉的辐射段中裂解加热的气相以产生包含烯烃的流出物，所述热解炉包括辐射段和对流段; 和（i）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。
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公开(公告)号：US08092671B2
公开(公告)日：2012-01-10
申请号：US12643470
申请日：2009-12-21
CPC分类号： C10G9/00 , C10G9/002 , C10G2300/1033 , C10G2300/1044 , C10G2300/1051 , C10G2300/1059 , C10G2300/107 , C10G2300/1077 , C10G2300/206
摘要： A method is disclosed for treating gaseous effluent from a hydrocarbon pyrolysis unit to provide steam cracked tar of reduced asphaltene and toluene insolubles content. The method is suitable for preparing reduced viscosity tar useful as a fuel blending stock, or feedstock for producing carbon black, while reducing or eliminating the need for externally sourced lighter aromatics additives to meet viscosity specifications. The method comprises drawing steam cracked tar from a separation vessel, e.g., a primary fractionator or tar knock-out drum, cooling the tar, and returning it to the separation vessel to effect lower overall tar temperatures within the separation vessel, in order to reduce viscosity increasing condensation reactions. An apparatus for carrying out the method is also provided.
摘要翻译： 公开了一种用于处理来自烃热解单元的气态流出物以提供减少的沥青质和甲苯不溶物含量的蒸汽裂化焦油的方法。 该方法适用于制备用作燃料混合原料的还原粘度焦油或用于生产炭黑的原料，同时减少或消除对来自外部的较轻芳烃添加剂以满足粘度规格的需要。 该方法包括从分离容器（例如主分馏器或焦油脱除鼓）中抽出蒸汽裂解焦油，冷却焦油，并将其返回到分离容器中以降低分离容器内的总焦油温度，以便减少 粘度增加缩合反应。 还提供了一种用于执行该方法的装置。
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28.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
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。
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公开(公告)号：US20100096296A1
公开(公告)日：2010-04-22
申请号：US12643470
申请日：2009-12-21
IPC分类号： C10L1/04
CPC分类号： C10G9/00 , C10G9/002 , C10G2300/1033 , C10G2300/1044 , C10G2300/1051 , C10G2300/1059 , C10G2300/107 , C10G2300/1077 , C10G2300/206
摘要： A method is disclosed for treating gaseous effluent from a hydrocarbon pyrolysis unit to provide steam cracked tar of reduced asphaltene and toluene insolubles content. The method is suitable for preparing reduced viscosity tar useful as a fuel blending stock, or feedstock for producing carbon black, while reducing or eliminating the need for externally sourced lighter aromatics additives to meet viscosity specifications. The method comprises drawing steam cracked tar from a separation vessel, e.g., a primary fractionator or tar knock-out drum, cooling the tar, and returning it to the separation vessel to effect lower overall tar temperatures within the separation vessel, in order to reduce viscosity increasing condensation reactions. An apparatus for carrying out the method is also provided.
摘要翻译： 公开了一种用于处理来自烃热解单元的气态流出物以提供减少的沥青质和甲苯不溶物含量的蒸汽裂化焦油的方法。 该方法适用于制备用作燃料混合原料的还原粘度焦油或用于生产炭黑的原料，同时减少或消除对来自外部的较轻芳烃添加剂以满足粘度规格的需要。 该方法包括从分离容器（例如主分馏器或焦油脱除鼓）中抽出蒸汽裂解焦油，冷却焦油，并将其返回到分离容器中以降低分离容器内的总焦油温度，以便减少 粘度增加缩合反应。 还提供了一种用于执行该方法的装置。
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30.发明授权Process and draft control system for use in cracking a heavy hydrocarbon feedstock in a pyrolysis furnace 有权用于裂解热解炉中重质烃原料的工艺和牵伸控制系统公开(公告)号：US07351872B2
公开(公告)日：2008-04-01
申请号：US10851495
申请日：2004-05-21
摘要： A process and control system for cracking a heavy hydrocarbon feedstock containing non-volatile hydrocarbons comprising heating the heavy hydrocarbon feedstock, mixing the heated heavy hydrocarbon feedstock with a dilution steam stream to form a mixture stream having a vapor phase and a liquid phase, separating the vapor phase from the liquid phase in a separation vessel, and cracking the vapor phase in the furnace, wherein the furnace draft is continuously measured and periodically adjusted to control the temperature of the stream entering the vapor/liquid separator and thus controlling the ratio of vapor to liquid separated in the separation vessel; and wherein in a preferred embodiment the means for adjusting the draft comprises varying the speed of at least one furnace fan, possibly in combination with adjusting the position of the furnace fan damper(s) or the furnace burner dampers(s).
摘要翻译： 一种用于裂化含有非挥发性烃的重质烃原料的方法和控制系统，包括加热重质烃原料，将加热的重质烃原料与稀释蒸汽流混合以形成具有气相和液相的混合物流，将 在分离容器中的液相的气相，并且在炉中裂化气相，其中连续测量并周期性地调节炉汲取气，以控制进入蒸汽/液体分离器的流的温度，从而控制蒸汽/ 在分离容器中分离液体; 并且其中在优选实施例中，用于调节通风的装置包括改变至少一个炉风扇的速度，可能与调节炉风扇风门或炉燃烧器风门的位置相结合。
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