Method for quenching paraffin dehydrogenation reaction in counter-current reactor
    1.
    发明授权
    Method for quenching paraffin dehydrogenation reaction in counter-current reactor 有权
    在逆流反应器中淬火石蜡脱氢反应的方法

    公开(公告)号:US09040763B2

    公开(公告)日:2015-05-26

    申请号:US12824640

    申请日:2010-06-28

    IPC分类号: C07C5/333

    摘要: A process is presented for quenching a process stream in a paraffin dehydrogenation process. The process comprises cooling a propane dehydrogenation stream during the hot residence time after the process stream leaves the catalytic bed reactor section. The process includes cooling and compressing the product stream, taking a portion of the product stream and passing the portion of the product stream to the mix with the process stream as it leaves the catalytic bed reactor section.

    摘要翻译: 提出了一种在石蜡脱氢过程中淬灭工艺流的方法。 该方法包括在工艺流离开催化床反应器部分之后的热停留时间期间冷却丙烷脱氢流。 该方法包括冷却和压缩产物流,取出产物流的一部分,并且当其离开催化床反应器部分时,使产物流的一部分与工艺物流一起进入混合物。

    High energy reduction in a propane dehydrogenation unit by utilizing a high pressure product splitter column
    2.
    发明授权
    High energy reduction in a propane dehydrogenation unit by utilizing a high pressure product splitter column 有权
    通过利用高压产物分离塔,丙烷脱氢装置中的高能量还原

    公开(公告)号:US08349263B2

    公开(公告)日:2013-01-08

    申请号:US13226083

    申请日:2011-09-06

    申请人: Sunil Panditrao

    发明人: Sunil Panditrao

    摘要: An improved process for the production of olefins, and in particular for separation of olefins produced by a dehydrogenation process from paraffin feed stocks, is provided. A high pressure product splitter is used to separate olefins produced in a dehydrogenation plant from residual paraffin feed stocks. The use of a high pressure splitter to separate olefin products from paraffin feed stocks allows for recovery of a high purity olefin product with lower energy consumption compared to prior art processes. The process is particularly suited to separation of propylene from propane.

    摘要翻译: 提供了一种用于烯烃生产的改进方法,特别是用于通过脱氢方法从链烷烃原料中分离产生的烯烃。 使用高压产品分流器将脱氢装置中产生的烯烃与残留的石蜡原料分离。 与现有技术方法相比,使用高压分离器将烯烃产物与石蜡原料分离能够回收具有较低能耗的高纯度烯烃产物。 该方法特别适用于丙烷与丙烷的分离。

    Integration of OTO process with direct DME synthesis
    4.
    发明授权
    Integration of OTO process with direct DME synthesis 有权
    OTO过程与直接DME合成的整合

    公开(公告)号:US08003841B2

    公开(公告)日:2011-08-23

    申请号:US12164946

    申请日:2008-06-30

    申请人: Andrea G. Bozzano

    发明人: Andrea G. Bozzano

    IPC分类号: C07C1/02 B01J10/00

    摘要: Processes and systems for utilizing products from DME synthesis in converting oxygenates to olefins are provided that include removing a DME-reactor effluent from a DME reactor, wherein the DME effluent includes DME, water, and methanol; separating carbon dioxide gas from the DME reactor effluent in a liquid gas separator to produce a degassed effluent stream. The processes and systems can include feeding the degassed effluent stream to an oxygenate to olefin reactor to produce an olefin containing effluent, wherein the olefin containing effluent further includes oxygenates. Alternatively, the processes and systems can include providing the degassed effluent stream to a DME column to produce a DME feedstock and a solvent stream, wherein the solvent stream includes methanol and water; feeding the DME feedstock to an oxygenate to olefin reactor to produce an olefin containing effluent, wherein the olefin containing effluent further includes oxygenates; and contacting at least a portion of the olefin containing effluent with the solvent stream in a solvent contacting zone to produce an olefin containing raffinate stream and an oxygenate containing extract.

    摘要翻译: 提供了利用DME合成产物将氧化物转化为烯烃的方法和系统,其包括从DME反应器中除去DME反应器流出物,其中DME流出物包括DME,水和甲醇; 在液体气体分离器中分离来自DME反应器流出物的二氧化碳气体以产生脱气的流出物流。 该方法和系统可以包括将脱气的流出物流进料到含氧化合物至烯烃反应器以产生含烯烃的流出物,其中含烯烃的流出物还包括含氧化合物。 或者,方法和系统可以包括将脱气流出物流提供到DME柱以产生DME原料和溶剂流,其中溶剂流包括甲醇和水; 将DME原料进料到含氧化合物至烯烃反应器以产生含烯烃的流出物,其中含烯烃的流出物还包含含氧化合物; 以及使至少一部分含烯烃流出物与溶剂流在溶剂接触区中接触以产生含烯烃的萃余液流和含氧化合物的萃取物。

    Process for recovering thermal energy from a reactor effluent stream
    5.
    发明授权
    Process for recovering thermal energy from a reactor effluent stream 有权
    从反应器流出物流中回收热能的方法

    公开(公告)号:US07687677B1

    公开(公告)日:2010-03-30

    申请号:US11541157

    申请日:2006-09-29

    IPC分类号: C07C7/11

    摘要: A processing scheme and arrangement for enhanced olefin production involves recovering thermal energy from a reactor effluent stream resulting from the dehydrogenation of a dehydrogenatable hydrocarbon. The process involves contacting the reactor effluent stream with a circulating fluid stream in a first contact cooling zone to produce a product stream and to form a heated circulating fluid stream. Thermal energy is recovered from the heated circulating fluid stream via indirect heat exchange with a first process stream in a first heat exchange zone to form a cooled circulating fluid stream. The cooled circulating fluid stream can be subsequently cooled and at least a first portion thereof returned to the first contact cooling zone.

    摘要翻译: 用于增强烯烃生产的加工方案和布置涉及从可脱氢烃脱氢产生的反应器流出物流中回收热能。 该方法包括使反应器流出物流与第一接触冷却区中的循环流体流接触以产生产物流并形成加热的循环流体流。 热能通过与第一热交换区中的第一工艺流的间接热交换从加热的循环流体流中回收以形成冷却的循环流体流。 冷却的循环流体流可以随后被冷却,并且其至少第一部分返回到第一接触冷却区。

    Low Temperature Process for Recovering and Producing Para-Xylene and Heat Exchange Network Therefore
    6.
    发明申请
    Low Temperature Process for Recovering and Producing Para-Xylene and Heat Exchange Network Therefore 有权
    因此,回收和生产对二甲苯和热交换网络的低温过程

    公开(公告)号:US20080161626A1

    公开(公告)日:2008-07-03

    申请号:US11617387

    申请日:2006-12-28

    申请人: David A. Wegerer

    发明人: David A. Wegerer

    IPC分类号: C07C7/00

    摘要: Recent experimental work with currently available adsorbents indicates that operating the adsorption section at lower temperatures improves the para-xylene productivity. As a result, an aromatics complex and heat recovery network for a low temperature adsorptive separation-isomerization loop is disclosed resulting in adsorbents savings in combination with higher capacity thereby enabling smaller adsorbents chambers, a smaller total heat exchanger area and a lower heat exchanger shell count.

    摘要翻译: 目前可获得的吸附剂的最近实验工作表明,在较低温度下操作吸附段可提高对二甲苯生产率。 因此,公开了一种用于低温吸附分离 - 异构化环路的芳香族络合物和热回收网络,其结果是吸附剂节省了更高的容量,从而使得较小的吸附剂室,更小的总热交换器面积和较低的热交换器壳体数 。

    Cascade reboiling of ethylbenzene/styrene columns
    9.
    发明授权
    Cascade reboiling of ethylbenzene/styrene columns 失效
    乙苯/苯乙烯柱的级联再沸腾

    公开(公告)号:US06171449B2

    公开(公告)日:2001-01-09

    申请号:US09100433

    申请日:1998-06-19

    申请人: Vincent A. Welch

    发明人: Vincent A. Welch

    IPC分类号: B01D342

    摘要: Apparatus and process are disclosed for the distillation separation of styrene monomer from ethylbenzene utilizing a split feed to two distillation columns in conjunction with cascade reboiling utilizing thermal energy from the overhead of one column to supply heat to the second.

    摘要翻译: 公开了用于将苯乙烯单体从乙苯蒸馏分离的设备和方法,其利用分离进料至两个蒸馏塔,结合使用来自一塔塔顶馏出物的热能从而向第二塔供热的级联再沸腾。

    Process for production of propylene and ethylene by non-catalytic
oxycracking of propane or propane-rich C.sub.2 -C.sub.4 paraffins
    10.
    发明授权
    Process for production of propylene and ethylene by non-catalytic oxycracking of propane or propane-rich C.sub.2 -C.sub.4 paraffins 失效
    通过丙烷或富含丙烷的C2-C4链烷烃的非催化氧裂解生产丙烯和乙烯的方法

    公开(公告)号:US6020534A

    公开(公告)日:2000-02-01

    申请号:US141685

    申请日:1998-08-28

    IPC分类号: C07C4/02 C07C5/48 C07C5/09

    摘要: A process for the production of propylene and ethylene by non-catalytic oxidative conversion of propane by allowing the endothermic hydrocarbon cracking reaction to occur simultaneously with the exothermic hydrocarbons oxidative conversion reactions in an empty tubular reactor is disclosed. The process comprises mixing of oxygen and propane at ambient temperatures, mixing of sulfur compound with steam, admixing the mixture of steam and sulfur compound and the mixture of oxygen and propane and preheating the resulting admixture, passing said mixture through an empty tubular reactor, cooling and separating the components of effluent product gases by known methods and recycling the unconverted reactants, if required.

    摘要翻译: 公开了一种通过在空管式反应器中与放热烃氧化转化反应同时发生吸热烃裂解反应而通过丙烷非催化氧化转化生产丙烯和乙烯的方法。 该方法包括在环境温度下混合氧气和丙烷,将硫化合物与蒸汽混合,混合蒸汽和硫化合物的混合物以及氧气和丙烷的混合物,并预热所得混合物,将所述混合物通过空的管式反应器,冷却 并通过已知方法分离出流出产物气体的组分,如果需要,可循环使用未转化的反应物。