Process and apparatus for removing coke formed during steam cracking of hydrocarbon feedstocks containing resids
    3.
    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。

    Steam cracking of hydrocarbon feedstocks containing salt and/or particulate matter
    4.
    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。