Process for the production of xylenes
    32.
    发明授权
    Process for the production of xylenes 有权
    生产二甲苯的方法

    公开(公告)号:US08937205B2

    公开(公告)日:2015-01-20

    申请号:US13465766

    申请日:2012-05-07

    IPC分类号: C07C2/66 C07C2/64 C07C2/86

    摘要: A hydrocarbon upgrading process is described in which 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 aliphatic and aromatic hydrocarbons. A second stream comprising C6-C9 aliphatic and aromatic hydrocarbons is recovered from the first stream and aliphatic hydrocarbons are removed from at least part of the second stream to produce an aliphatic hydrocarbon-depleted stream. The aliphatic hydrocarbon-depleted stream is then dealkylated and/or transalkylated and/or cracked (D/T/C) by contact with a catalyst under suitable reaction conditions to produce a third stream having an increased benzene and/or toluene content compared with said aliphatic hydrocarbon-depleted stream and a light paraffin by-product. Benzene and/or toluene from the third stream is then methylated with a methylating agent to produce a xylene-enriched stream.

    摘要翻译: 描述了一种烃改质方法,其中在合适条件下,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脂族和芳族烃的第一流。 从第一物流回收包含C 6 -C 9脂族和芳烃的第二物流,并且从至少部分第二物流中除去脂族烃以产生脂族烃贫化物流。 然后通过在合适的反应条件下与催化剂接触使脂肪烃贫化的物流脱烷基化和/或烷基转移和/或裂解(D / T / C),以产生与所述的烃和/或甲苯含量相比增加的第三料流 脂肪烃贫化物流和轻质石蜡副产物。 然后用甲基化剂将来自第三物流的苯和/或甲苯甲基化以产生富二甲苯流。

    METHOD AND APPARATUS FOR CONTINUOUS RECYCLING OF WASTE PLASTIC INTO LIQUID FUELS
    34.
    发明申请
    METHOD AND APPARATUS FOR CONTINUOUS RECYCLING OF WASTE PLASTIC INTO LIQUID FUELS 审中-公开
    废弃物在液体燃料中连续回收的方法与装置

    公开(公告)号:US20140121426A1

    公开(公告)日:2014-05-01

    申请号:US14126854

    申请日:2012-06-16

    申请人: Amit Tandon

    发明人: Amit Tandon

    IPC分类号: C10G1/10

    摘要: A method and system (100) is provided for continuous recycling of waste plastic feedstock into liquid fuels. The method includes sending the feedstock into a rotary retort vessel at an input end of the rotary retort vessel. The feedstock is received on either sides of a partition structure, wherein the partition structure connects the input end of the rotary retort vessel to an output end of the rotary retort vessel. The feedstock is pyrolized in the rotary retort vessel, wherein the feedstock produces gaseous byproducts and non-gaseous byproducts. The byproducts are moved towards the output end of the rotary retort vessel, wherein the movement is facilitated by declination of the rotary retort vessel and the one or more partition structures. The non-gaseous byproducts are continuously removed from the rotary retort vessel.

    摘要翻译: 提供了一种方法和系统(100),用于将废塑料原料连续回收到液体燃料中。 该方法包括将原料送入旋转蒸煮容器的输入端的旋转蒸煮容器中。 原料被接收在分隔结构的两侧,其中分隔结构将旋转蒸煮容器的输入端连接到旋转蒸煮容器的输出端。 原料在旋转蒸煮容器中热解,其中原料产生气态副产物和非气态副产物。 副产物朝向旋转蒸煮容器的输出端移动,其中通过旋转蒸煮容器和一个或多个分隔结构的偏斜促进运动。 非气态副产物从旋转蒸煮容器中连续地除去。

    Nitrogen stripping of hydrotreater condensate
    36.
    发明申请
    Nitrogen stripping of hydrotreater condensate 失效
    加氢处理凝析水的脱氮

    公开(公告)号:US20020068768A1

    公开(公告)日:2002-06-06

    申请号:US09974331

    申请日:2001-10-10

    IPC分类号: F02C003/20 C07C027/06

    摘要: A hydrotreated liquid contains volatile hydrocarbons, hydrogen, and contaminants such as hydrogen sulfide. An inert gas, preferably nitrogen, is used to strip volatiles from the hydrotreated liquid. This stripper gas is then added to fuel gas fed to a combustion turbine, where combustibles in the fuel gas and stripper gas are combusted. The stripping is at a pressure sufficient to allow the stripper gas, now containing hydrocarbons and hydrogen, to be added to the combustion turbine fuel without additional compression. This process allows for efficient use of the stripped combustibles, and the nitrogen added to the fuel gas provides increased power generation from the combustion turbine and reduces NOx emissions.

    摘要翻译: 加氢处理的液体含有挥发性烃类,氢气和污染物如硫化氢。 惰性气体,优选氮气,用于从加氢处理的液体中除去挥发物。 然后将该汽提器气体加入到燃料涡轮机的燃料气体中,燃烧气体和汽提气体中的可燃物燃烧。 汽提处于足以允许现在含有碳氢化合物和氢气的汽提器气体添加到燃料涡轮机燃料中而没有额外的压缩的压力。 该方法允许有效地使用汽提的可燃物,并且添加到燃料气体中的氮提供来自燃气轮机的增加的发电并且减少NOx排放。

    Preventing ammonium chloride deposition
    37.
    发明授权
    Preventing ammonium chloride deposition 失效
    防止氯化铵沉积

    公开(公告)号:US4098675A

    公开(公告)日:1978-07-04

    申请号:US813553

    申请日:1977-07-07

    申请人: Max D. Pope

    发明人: Max D. Pope

    摘要: Deposition of ammonium chloride from a gaseous stream as it is passed through a compression means is prevented by recycling to the compression suction a sufficient amount of the compression means discharge that has been heated by the compression operation to maintain the temperature of the gaseous stream above the deposition temperature for ammonium chloride at operating pressure. The invention is particularly useful in hydrocarbon hydrogen treating processes in which hydrogen recycle streams containing ammonium chloride or ammonium chloride-forming constituents must be recompressed before recycle to the hydrogen treating process.

    摘要翻译: 通过将气态物流通过压缩装置从氯气中流出的氯化铵通过再循环至压缩抽吸来防止已经通过压缩操作加热的足够量的压缩装置排放物以将气态流的温度保持在 工作压力下氯化铵的沉积温度。 本发明在烃氢处理方法中特别有用,其中含有氯化铵或形成氯化铵的组分的氢循环物流必须在再循环到氢气处理过程之前被再压缩。