Countercurrent hydroprocessing with trickle bed processing of vapor product stream
    11.
    发明授权
    Countercurrent hydroprocessing with trickle bed processing of vapor product stream 失效
    逆流加氢与蒸汽产物流的滴加床处理

    公开(公告)号:US06569314B1

    公开(公告)日:2003-05-27

    申请号:US09457435

    申请日:1999-12-07

    IPC分类号: C01G6502

    CPC分类号: C10G65/02 C10G2300/107

    摘要: The present invention relates to a process for upgrading a liquid petroleum or chemical stream wherein said stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas, in at least one reaction zone. At least a fraction of up flowing vapor product is condensed to produce a condensate comprised of the heavier fraction of the vapor phase product stream and a lighter remaining vapor stream. The condensate and potentially the lighter remaining vapor stream are further hydroprocessed.

    摘要翻译: 本发明涉及一种用于升级液体石油或化学物流的方法,其中所述流在至少一个反应区中与处理气体(例如含氢气体)的流动逆流流动。 至少一部分上升的蒸气产物被冷凝以产生由较重部分的气相产物流和更轻的剩余蒸气流组成的冷凝物。 冷凝物和潜在的较轻的剩余蒸气流进一步加氢处理。

    Production of low sulfur distillates
    12.
    发明授权
    Production of low sulfur distillates 有权
    生产低硫馏分

    公开(公告)号:US07435335B1

    公开(公告)日:2008-10-14

    申请号:US09553107

    申请日:2000-04-20

    IPC分类号: C10G45/00 C10G45/44

    CPC分类号: C10G65/12

    摘要: A process for hydroprocessing a distillate stream to produce a stream exceptionally low in sulfur, with total aromatics and polynuclear aromatics being moderately reduced. A distillate stream is hydrodesulfurized in a first hydrodesulfurization stage. The product stream thereof is passed to a first separation stage wherein a vapor phase product stream and a liquid product stream are produced. The liquid phase product stream is passed to a second hydrodesulfurization stage and the product stream thereof is passed to a second separation stage wherein a vapor phase product stream and a liquid product stream low in sulfur are produced. At least a portion of the vapor product stream from said second separation stage can be cascaded to the first hydrodesulfurization stage.

    摘要翻译: 用于加氢处理馏出物流以产生异常低硫的流的方法,其中芳族化合物和多环芳烃被适度地还原。 馏出物流在第一加氢脱硫阶段加氢脱硫。 其产物流被送到第一分离阶段,其中产生气相产物流和液体产物流。 将液相产物流送至第二加氢脱硫阶段,将其产物流送至第二分离阶段,其中产生气相产物流和硫含量低的液体产物流。 来自所述第二分离级的至少一部分蒸汽产物流可以级联到第一加氢脱硫阶段。

    Integrated staged catalytic cracking and hydroprocessing process
    20.
    发明授权
    Integrated staged catalytic cracking and hydroprocessing process 失效
    综合分级催化裂化加氢处理工艺

    公开(公告)号:US5770043A

    公开(公告)日:1998-06-23

    申请号:US697381

    申请日:1996-08-23

    CPC分类号: C10G69/04 C10G69/00 C10G69/06

    摘要: Disclosed is a catalytic cracking process which includes more than one catalytic cracking reaction step. The process integrates a hydroprocessing process step between the catalytic cracking reaction steps in order to maximize olefins production, mid-distillate quality and naphtha octane level in the cracked products. Preferably, a first cracked hydrocarbon product is obtained from a first cracking stage and separated into a mid-distillate and gas oil containing fraction having an initial boiling point of at least 300.degree. F., the distillate and gas oil containing fraction is hydroprocessed, and a naphtha fraction and a gas oil containing bottoms fraction of the hydroprocessed material are cracked in a second cracking stage.

    摘要翻译: 公开了一种催化裂解方法,其包括多于一个催化裂化反应步骤。 该过程在催化裂化反应步骤之间整合加氢处理步骤,以使裂化产物中的烯烃生产,中间馏分质量和石脑油辛烷值达到最大。 优选地,从第一裂解阶段获得第一裂化烃产物,并将其分离成具有初馏点至少为300°F的中间馏分和含瓦斯油的馏分,加氢处理馏出物和瓦斯油馏分, 石脑油馏分和加氢处理材料的含有塔底馏分的瓦斯油在第二裂解阶段裂化。