Steam cracking of hydrocarbon feedstocks containing salt and/or particulate matter
    7.
    发明申请
    Steam cracking of hydrocarbon feedstocks containing salt and/or particulate matter 有权
    含有盐和/或颗粒物质的烃原料的蒸汽裂化

    公开(公告)号:US20060094918A1

    公开(公告)日:2006-05-04

    申请号:US10975703

    申请日:2004-10-28

    IPC分类号: C07C4/02

    摘要: A process for cracking a hydrocarbon feedstock containing salt and/or particulate matter, wherein said hydrocarbon feedstock containing salt and/or particulate matter is heated, then separated into a vapor phase and a liquid phase by flashing in a flash/separation vessel, separating and cracking the vapor phase which comprises less than about 98% of the hydrocarbon feedstock containing salt and/or particulate matter, and recovering cracked product. The salt and/or particulate matter are removed in the liquid bottoms stream from the flash/separation vessel.

    摘要翻译: 一种用于裂化含有盐和/或颗粒物质的烃原料的方法,其中含有盐和/或颗粒物质的所述烃原料被加热,然后通过在闪蒸/分离容器中闪蒸分离成气相和液相,分离和 裂化气相,其包含小于约98%的含有盐和/或颗粒物质的烃原料,并回收裂化产物。 在液体底部物流中从闪蒸/分离容器中除去盐和/或颗粒物质。

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

    公开(公告)号:US20070007170A1

    公开(公告)日:2007-01-11

    申请号:US11177076

    申请日:2005-07-08

    IPC分类号: C10G9/00 B01D53/34 F01N3/10

    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。

    Process And Draft Control System For Use In Cracking A Heavy Hydrocarbon Feedstock In A Pyrolysis Furnace
    9.
    发明申请
    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:US20080119679A1

    公开(公告)日:2008-05-22

    申请号:US12020000

    申请日:2008-01-25

    IPC分类号: C07C4/04

    CPC分类号: C10G9/00 C10G9/20 C10G9/206

    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。

    Process and apparatus for removing coke formed during steam cracking of hydrocarbon feedstocks containing resids
    10.
    发明申请
    Process and apparatus for removing coke formed during steam cracking of hydrocarbon feedstocks containing resids 有权
    用于除去含有残渣的烃原料的蒸汽裂解期间形成的焦炭的方法和装置

    公开(公告)号:US20050261532A1

    公开(公告)日:2005-11-24

    申请号:US10851487

    申请日:2004-05-21

    IPC分类号: C10G9/00 C10G9/20 C07C4/04

    CPC分类号: C10G9/00 C10G9/20 Y02P20/142

    摘要: A process for decoking of a process that cracks hydrocarbon feedstock containing resid and coke precursors, wherein steam is added to the feedstock to form a mixture 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. Coking of internal surfaces in and proximally downstream of the vessel is controlled by interrupting the feed flow, purging the vessel with steam, introducing an air/steam mixture to at least partially combust the coke, and resuming the feed flow when sufficient coke has been removed. An apparatus for carrying out the process is also provided.

    摘要翻译: 一种用于对含有残渣和焦炭前体的烃原料进行裂解的方法的焦化方法,其中将蒸汽加入到原料中以形成混合物,然后通过在闪蒸/分离容器中闪蒸分离成气相和液相,分离 并开裂汽相,回收破裂产物。 通过中断进料流,用蒸汽吹扫容器,引入空气/蒸汽混合物至少部分地燃烧焦炭并且当已经除去足够的焦炭时恢复进料流量来控制容器内部和近侧下部的内部表面的焦化 。 还提供了一种用于执行该过程的装置。