Process for the Production of Xylenes and Light Olefins
    1.
    发明申请
    Process for the Production of Xylenes and Light Olefins 有权
    生产二甲苯和轻烯烃的方法

    公开(公告)号:US20130296622A1

    公开(公告)日:2013-11-07

    申请号:US13465733

    申请日:2012-05-07

    IPC分类号: C07C2/86

    摘要: In a hydrocarbon upgrading process, a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable conditions to produce a first stream comprising olefinic and aromatic hydrocarbons. A second stream composed mainly of C4+ olefinic and aromatic hydrocarbons is recovered from the first stream and is fed together with a methylating agent to a reaction zone containing a catalyst under reaction conditions including a temperature of about 450° C. to about 700° C., such that aromatics components in the second stream undergo dealkylation, transalkylation and/or methylation and aliphatic components undergo cracking and aromatization to produce a third stream having an increased xylene content compared with said second stream and a C3− olefin by-product. The C3− olefin by-product is recovered and para-xylene is removed from at least part of said third stream.

    摘要翻译: 在烃改质方法中,在合适条件下,在蒸汽裂化器,催化裂化器,焦化器,加氢裂化器和重整器中的至少一种中处理烃进料以产生包含烯烃和芳族烃的第一流。 从第一流回收主要由C4 +烯烃和芳烃组成的第二料流,并在包括约450℃至约700℃的温度的反应条件下与甲基化剂一起加入含有催化剂的反应区。 使得第二流中的芳烃组分经历脱烷基化,烷基转移和/或甲基化,并且脂族组分经历裂化和芳构化以产生与所述第二料流和C3-烯烃副产物相比具有增加的二甲苯含量的第三料流。 回收C3-烯烃副产物,并从至少部分所述第三料流中除去对二甲苯。

    Process and Apparatus for Upgrading Steam Cracker Tar-Containing Effluent Using Steam
    5.
    发明申请
    Process and Apparatus for Upgrading Steam Cracker Tar-Containing Effluent Using Steam 有权
    使用蒸汽升级蒸汽裂解器含焦油废水的工艺和装置

    公开(公告)号:US20100320119A1

    公开(公告)日:2010-12-23

    申请号:US12486813

    申请日:2009-06-18

    IPC分类号: C10C3/02

    摘要: A process and apparatus are provided for the present invention relates to a process for upgrading tar-containing effluent from a steam cracker furnace that comprises: a) contacting a steam cracker tar-containing effluent with steam and for a time, sufficient to convert at least a portion of the steam cracker tar to a mixture comprising lower boiling molecules and the steam cracker tar-containing effluent; and b) separating the mixture from step a) into i) at least one tar-lean product; and ii) a tar-rich product having a final boiling above the final boiling point of the at least one tar-lean product. Step a) can includes at least one of: 1) contacting said steam cracker tar-containing effluent with steam added to the effluent in a transfer line downstream of a steam cracker furnace comprising a quench inlet, with the steam added through or downstream of the quench inlet; 2) contacting the steam cracker tar-containing effluent with steam under heat soaking conditions in a heat soaking vessel to which the steam is added; and 3) contacting the steam cracker tar-containing effluent with steam under visbreaking conditions in a visbreaker. The steam treated tar can be separated into higher value gas oil, fuel oil and tar streams.

    摘要翻译: 提供了一种方法和装置,本发明涉及一种用于升级来自蒸汽裂化炉的含焦油流出物的方法,该方法包括:a)使蒸汽裂解焦油含有流出物与蒸汽接触一段时间,足以至少转化 蒸汽裂化器焦油的一部分到包含较低沸点分子的混合物和含蒸汽裂解物焦油的流出物; 和b)将混合物与步骤a)分离成i)至少一种焦油产品; 和ii)具有高于至少一种焦油产品的最终沸点的最终沸点的焦油富产品。 步骤a)可以包括以下中的至少一个:1)将所述含蒸汽裂解焦油的流出物与蒸汽加料到流出物中的蒸汽接触,所述蒸汽在包含骤冷入口的蒸汽裂解炉的下游的输送管线中, 淬火入口 2)在加热浸泡条件下将含蒸汽裂解焦油的流出物与蒸汽接触,在加热蒸汽的加热容器中; 和3)在减粘裂化条件下将含蒸汽裂解焦油的流出物与蒸汽接触。 蒸汽处理的焦油可以分成更高价值的瓦斯油,燃料油和焦油流。

    Process and Apparatus for Upgrading Steam Cracked Tar Using Steam
    6.
    发明申请
    Process and Apparatus for Upgrading Steam Cracked Tar Using Steam 有权
    使用蒸汽升级蒸汽裂解焦油的方法和装置

    公开(公告)号:US20090255852A1

    公开(公告)日:2009-10-15

    申请号:US12099971

    申请日:2008-04-09

    IPC分类号: C10G51/04 B01J8/04

    CPC分类号: C10G51/023

    摘要: A process and apparatus are provided for upgrading steam cracked tars. The invention also relates to a steam cracking process and apparatus for reducing the yields of tars produced from steam cracking while increasing yields of higher value products, heating, in the presence of steam, cooled steam cracker tar containing asphaltenes, to a temperature, e.g., above about 300° C., which is sufficient to convert at least a portion of the steam cracked tar to lower boiling molecules. The resulting heat and steam-treated tar can be separated into gas oil, fuel oil and tar streams.

    摘要翻译: 提供了一种用于升级蒸汽裂纹焦油的方法和装置。 本发明还涉及一种蒸汽裂解方法和装置,用于降低由蒸汽裂解产生的焦油的产率,同时增加更高价值产物的产率,在蒸气存在下,将含有沥青质的冷却蒸汽裂解焦油加热至例如, 高于约300℃,其足以将至少一部分蒸汽裂化焦油转化成较低沸点分子。 所得热和蒸汽处理的焦油可分离成瓦斯油,燃料油和焦油流。

    Process and Apparatus for Upgrading Steam Cracked Tar
    7.
    发明申请
    Process and Apparatus for Upgrading Steam Cracked Tar 有权
    升级蒸汽裂纹焦油的方法和装置

    公开(公告)号:US20090194458A1

    公开(公告)日:2009-08-06

    申请号:US12023204

    申请日:2008-01-31

    IPC分类号: C10G55/04

    CPC分类号: C10G9/00 C10G55/04

    摘要: A process and apparatus are provided for upgrading steam cracked tars. The invention also relates to a steam cracking process and apparatus for reducing the yields of tars produced from steam cracking while increasing yields of higher value products, heating cooled steam cracker tar containing asphaltenes, to a temperature, e.g., above about 300° C., which is sufficient to convert at least a portion of the steam cracked tar to lower boiling molecules. The resulting heat-treated tar can be separated into gas oil, fuel oil and tar streams.

    摘要翻译: 提供了一种用于升级蒸汽裂纹焦油的方法和装置。 本发明还涉及一种蒸汽裂解方法和装置,用于降低由蒸汽裂化产生的焦油的产率,同时将较高价值的产物(将含有沥青质的冷却蒸汽裂解焦油)的产量提高至例如高于约300℃的温度, 这足以将至少一部分蒸汽裂解的焦油转化成较低沸点的分子。 所得到的经热处理的焦油可以分成瓦斯油,燃料油和焦油流。