CORROSION-RESISTANT BIMETALLIC TUBE AND ITS USE IN TUBE BUNDLE EQUIPMENT
    1.
    发明申请
    CORROSION-RESISTANT BIMETALLIC TUBE AND ITS USE IN TUBE BUNDLE EQUIPMENT 审中-公开
    耐腐蚀双金属管及其在管道装置中的应用

    公开(公告)号:US20160216050A1

    公开(公告)日:2016-07-28

    申请号:US15088840

    申请日:2016-04-01

    摘要: A bimetallic tube consisting of at least one tubular element in a first metal resistant to the corrosive and/or erosive action of a process fluid with which it is put in contact, having at least one end, or an area close to an end, externally coated with a layer of a second metal, different from the first and more suitable, with respect to this, for being seal-welded to a support. Tube bundle equipment to be used for thermal exchange operations at high temperatures and pressures, under conditions of high aggressiveness of the process fluids, wherein the tube bundle comprises at least one tube having the above characteristics.Said equipment is particularly used as a heat exchanger and decomposer, for example as a stripper, in the cycle of urea synthesis processes where there are conditions of high pressure, high temperatures, high aggressiveness of the process fluids, and in which the tube bundle consists of at least one tube having the above characteristics.

    摘要翻译: 一种双金属管,由至少一个第一金属管状元件组成,其耐受其与其接触的工艺流体的腐蚀性和/或侵蚀作用,具有至少一个端部或接近端部的区域,外部 涂覆有与第一金属不同的第二金属层,并且对于密封焊接到支撑体上。 管束设备,用于在高温和高压下在过程流体的高侵蚀性条件下进行热交换操作,其中管束包括至少一个具有上述特征的管。 所述设备在尿素合成过程的循环中特别用作热交换器和分解器,例如作为汽提器,其中存在高压,高温,过程流体的高侵蚀性,并且其中管束组成 具有上述特征的至少一个管。

    Process for preparing light olefins by dehydrogenation of the corresponding paraffins
    6.
    发明授权
    Process for preparing light olefins by dehydrogenation of the corresponding paraffins 失效
    通过相应的链烷烃的脱氢制备轻质烯烃的方法

    公开(公告)号:US07235706B2

    公开(公告)日:2007-06-26

    申请号:US10184888

    申请日:2002-07-01

    IPC分类号: C07C5/327 C07C5/333

    摘要: A process for preparing light olefins from corresponding paraffins consists of reacting said paraffins in a reactor, operating at a temperature of between 450 and 800° C., a pressure of between 0.1 and 3 atm absolute and a GHSV of between 100 and 10000 h−1, with a catalytic system containing gallium, platinum, possibly one or more alkaline or alkaline-earth metals, and a support consisting of alumina in delta or theta phase or in delta+theta or theta+alpha or delta+theta+alpha mixed phase, modified with silica, the gallium, expressed as Ga2O3, being in a quantity of between 0.1 and 33.6 wt %, the platinum being in a quantity of between 1 and 99 ppm, the alkaline or alkaline-earth metals, expressed as oxide, being in a quantity of between 0 and 5 wt %, and the silica being in a quantity of between 0.08 and 3 wt %, the rest to 100% being alumina, and regenerating said catalytic system in a regenerator by burning off the coke which has deposited on its surface, without subsequently reducing it.

    摘要翻译: 从相应的链烷烃制备轻质烯烃的方法包括使反应器中的所述链烷烃反应,在450至800℃之间的温度下操作,绝对压力为0.1至3atm,GHSV为100至10000h, 具有含镓,铂,可能一种或多种碱金属或碱土金属的催化体系,以及由δ或θ相中的氧化铝或δ+θ或θ+α或 用二氧化硅改性的δ+θ+α混合相,以Ga 2 O 3 N 3表示的镓的量为0.1至33.6重量%,铂 以1至99ppm的量存在,表示为氧化物的碱金属或碱土金属的量为0至5重量%,二氧化硅的量为0.08至3重量% 其余为100%为氧化铝,并通过烧掉沉积在其上的焦炭,在再生器中再生所述催化体系 表面,不后来减少它。

    Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues
    7.
    发明申请
    Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues 有权
    用于转化重质原料如重质原油和蒸馏残余物的方法

    公开(公告)号:US20060175229A1

    公开(公告)日:2006-08-10

    申请号:US10538886

    申请日:2003-12-12

    IPC分类号: C10G65/02

    摘要: Process for the conversion of heavy feedstocks selected from heavy crude oils, distillation residues, heavy oils coming from catalytic treatment, thermal tars, oil sand bitumens, various kinds of coals and other high-boiling feedstocks of a hydrocarbon origin known as black oils, by the combined use of the following three process units: hydroconversion with catalysts in slurry phase (HT), distillation or flash (D), deasphalting (SDA), comprising the following steps: mixing at least part of the heavy feedstock and/or at least most of the stream containing asphaltenes obtained in the deasphalting unit with a suitable hydrogenation catalyst and sending the mixture obtained to a hydrotreatment reactor (HT) into which hydrogen or a mixture of hydrogen and H2S is charged; sending the stream containing the hydrotreatment reaction product and the catalyst in dispersed phase to one or more distillation or flash steps (D) whereby the different fractions coming from the hydrotreatment reaction are separated; recycling at least part of the distillation residue (tar) or liquid leaving the flash unit, containing the catalyst in dispersed phase, rich in metal sulfides produced by demetallation of the feedstock and possibly coke, to the deasphalting zone (SDA) in the presence of solvents, optionally also fed with at least a fraction of the heavy feedstock, obtaining two streams, one consisting of deasphalted oil (DAO) and the other containing asphaltenes, characterized in that the stream containing the hydrotreatment reaction product and the catalyst in dispersed phase, before being sent to one or more distillation or flash steps, is subjected to a high pressure separation pre-step in order to obtain a light fraction and a heavy fraction, the heavy fraction alone being sent to said distillation step(s) (D).

    摘要翻译: 将重质原油,蒸馏残渣,来自催化处理的重油,热焦油,油砂沥青,各种煤等烃原产地称为黑油的重质原料转化为重质原料的方法,由 组合使用以下三个工艺单元:与浆料相(HT),蒸馏或闪蒸(D),脱沥青(SDA)中的催化剂进行加氢转化,包括以下步骤:将至少部分重质原料和/或至少 在脱沥青单元中用合适的氢化催化剂获得的含有沥青质的大部分物流,并将所得混合物送入加氢处理反应器(HT)中,向其中加入氢气或氢气和H 2 S 2 S的混合物; 将含有加氢处理反应产物和分散相的催化剂的物流送至一个或多个蒸馏或闪蒸步骤(D),由此分离来自加氢处理反应的不同馏分; 回收至少部分蒸馏残余物(焦油)或离开闪蒸单元的液体,其含有分散相中的催化剂,富含金属硫化物,其通过原料脱金属和可能的焦化而在脱沥青区(SDA)存在下 溶剂,任选地还加入至少一部分重质原料,得到两条流,一条由脱沥青油(DAO)组成,另一条含有沥青质,其特征在于含有加氢处理反应产物和分散相的催化剂的物流, 在进行一个或多个蒸馏或快速步骤之前,对其进行高压分离前处理以获得轻馏分和重馏分,单独的重馏分送至所述蒸馏步骤(D) 。

    Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues
    8.
    发明申请
    Process for the conversion of heavy feedstocks such as heavy crude oils and distillation residues 有权
    用于转化重质原料如重质原油和蒸馏残余物的方法

    公开(公告)号:US20060163115A1

    公开(公告)日:2006-07-27

    申请号:US10539058

    申请日:2003-12-12

    IPC分类号: C10G65/02

    摘要: Process for the conversion of heavy feedstocks selected from heavy crude oils, distillation residues, heavy oils coming from catalytic treatment, thermal tars, oil sand bitumens, various kinds of coals and other high-boiling feedstocks of a hydrocarbon origin known as black oils, by the combined use of the following three process units: hydroconversion with catalysts in slurry phase (HT), distillation or flash (D), deasphalting (SDA), comprising the following steps: • mixing at least part of the heavy feedstock and/or at least most of the stream containing asphaltenes obtained in the deasphalting unit with a suitable hydrogenation catalyst and sending the mixture obtained to a hydrotreatment reactor (HT) into which hydrogen or a mixture of hydrogen and H2S is charged; • sending the stream containing the hydrotreatment reaction product and the catalyst in dispersed phase to one or more distillation or flash steps (D) whereby the different fractions coming from the hydrotreatment reaction are separated; • recycling at least part of the distillation residue (tar) or liquid leaving the flash unit, containing the catalyst in dispersed phase, rich in metal sulfides produced by demetallation of the feedstock and possibly coke, to the deasphalting zone (SDA) in the presence of solvents, optionally also fed with at least a fraction of the heavy feedstock, obtaining two streams, one consisting of deasphalted oil (DAO) and the other containing asphaltenes, characterized in that a fraction of the stream containing as phaltenes, coming from the deasphalting section (SDA), called flushing stream, is sent to a treatment section with a suitable solvent for the separation of the product into a solid fraction and a liquid fraction from which said solvent can be subsequently removed.

    摘要翻译: 将重质原油,蒸馏残渣,来自催化处理的重油,热焦油,油砂沥青,各种煤等烃原产地称为黑油的重质原料转化为重质原料的方法,由 组合使用以下三个工艺单元:与浆料相(HT),蒸馏或闪蒸(D),脱沥青(SDA)中的催化剂进行加氢转化,包括以下步骤。 将脱沥青单元中获得的至少部分重质原料和/或至少大部分含有沥青质的料流与合适的氢化催化剂混合,并将得到的混合物送入加氢处理反应器(HT),氢气或氢气与 H 2 S被充电; 。 将含有加氢处理反应产物和分散相的催化剂的物流送至一个或多个蒸馏或闪蒸步骤(D),由此分离来自加氢处理反应的不同馏分; 。 回收至少部分蒸馏残余物(焦油)或离开闪蒸单元的液体,其含有分散相中的催化剂,富含金属硫化物,其通过原料脱金属和可能的焦化而在脱沥青区(SDA)存在下 溶剂,任选地还加入至少一部分重质原料,获得两股流,一条由脱沥青油(DAO)组成,另一条含有沥青质,其特征在于,含有来自脱沥青部分 (SDA),称为冲洗流,被送入具有合适溶剂的处理部分,用于将产物分离成固体部分和可随后从其中除去所述溶剂的液体部分。

    Process for the production of hydrocarbons with a high octane number starting from mixtures of n-butane/isobutane such as field butanes
    9.
    发明申请
    Process for the production of hydrocarbons with a high octane number starting from mixtures of n-butane/isobutane such as field butanes 审中-公开
    从正丁烷/异丁烷的混合物如场丁烷开始生产具有高辛烷值的烃的方法

    公开(公告)号:US20020087040A1

    公开(公告)日:2002-07-04

    申请号:US09986562

    申请日:2001-11-09

    IPC分类号: C07C011/00 C07C002/00

    CPC分类号: C07C9/14 C10L1/06

    摘要: A process is described for the production of hydrocarbons with a high octane number starting from mixtures essentially consisting of n-butane and isobutane (such as for example field butanes) comprising a skeleton isomerization section, a dehydrogenation section of paraffins, a selective hydrogenation section of butadiene, two conversion sections of olefins, in which the isobutene is firstly selectively transformed by means of dimerization and/or etherification, followed by the linear butenes by means of alkylation, in order to obtain, by joining the products of the two conversion sections, a product having excellent motoristic properties (octane number, volatility and distillation curve).

    摘要翻译: 描述了一种用于生产具有高辛烷值的烃的方法,其起始于基本上由正丁烷和异丁烷(例如现场丁烷)组成的混合物,其包含骨架异构化部分,链烷烃的脱氢部分,选择氢化部分 丁二烯,烯烃的两个转化段,其中首先通过二聚和/或醚化选择性地转化异丁烯,然后通过烷基化进行线性丁烯,以便通过连接两个转化段的产物, 具有优异的运动特性(辛烷值,挥发性和蒸馏曲线)的产品。