High activity, high yield tin modified platinum-iridium catalysts, and
reforming process utilizing such catalysts
    63.
    发明授权
    High activity, high yield tin modified platinum-iridium catalysts, and reforming process utilizing such catalysts 失效
    高活性,高产率的锡改性的铂 - 铱催化剂,以及利用这种催化剂的重整方法

    公开(公告)号:US5221465A

    公开(公告)日:1993-06-22

    申请号:US814659

    申请日:1991-12-30

    CPC classification number: B01J23/626 C10G35/09

    Abstract: Tin modified platinum-iridium catalysts provide high yields of C.sub.5 +liquid reformate in catalytic reforming, concurrent with high activity. In particular, the tin modified platinum-iridium catalysts are of unusually high selectivity, as contrasted with known iridium promoted platinum catalysts. The high selectivity is manifested in reforming a naphtha feed in a reactor charged to capacity with the catalyst, but particularly when used in the dehydrocyclization zone, or tail reactor of a series of reactors, while the lead reactors of the series contain a non tin-containing platinum catalyst, especially a platinum-iridium, or a platinum-rhenium catalyst. The tin modified platinum-iridium catalysts are also highly active, with only moderate loss in the high activity for which iridium stabilized platinum catalysts are known.

    Abstract translation: 锡改性的铂 - 铱催化剂在催化重整中提供高产率的C5 +液体重整产物,并具有高活性。 特别地,与已知的铱促进的铂催化剂相比,锡改性的铂 - 铱催化剂具有非常高的选择性。 高选择性表现在用催化剂装载能力的反应器中重整石脑油进料,特别是当用于一系列反应器的脱氢环化区或尾反应器中时,该系列的引导反应器含有非锡 - 含铂铂催化剂,特别是铂 - 铱或铂 - 铼催化剂。 锡改性的铂 - 铱催化剂也是高活性的,只有铱稳定的铂催化剂已知的高活性才有适度的损失。

    Reforming catalyst
    64.
    发明授权
    Reforming catalyst 失效
    重整催化剂

    公开(公告)号:US5066632A

    公开(公告)日:1991-11-19

    申请号:US492210

    申请日:1990-03-13

    CPC classification number: C10G35/09

    Abstract: Disclosed is a catalyst composition for reforming a naphtha feed, which composition is composed of the metals, platinum, rhenium, and iridium on a refractory porous inorganic oxide support material, wherein the concentration of each of the metals platinum and rhenium is at least 0.1 percent and iridium at least 0.15 percent, and at least one of the metals is present in a concentration of at least 0.3 percent, and the sum-total concentration of the metals is greater than 0.9 percent.

    Abstract translation: 公开了一种用于重整石脑油进料的催化剂组合物,该组合物由难熔多孔无机氧化物载体材料上的金属,铂,铼和铱组成,其中每种金属铂和铼的浓度为至少0.1% 和铱至少为0.15%,并且至少一种金属以至少0.3%的浓度存在,金属的总和浓度大于0.9%。

    Reforming using platinum agglomerated iridium catalysts
    65.
    发明授权
    Reforming using platinum agglomerated iridium catalysts 失效
    使用铂凝聚铱催化剂进行改性

    公开(公告)号:US4968408A

    公开(公告)日:1990-11-06

    申请号:US375222

    申请日:1989-07-03

    CPC classification number: B01J23/58 B01J23/6567 C10G35/09

    Abstract: A method for reforming naphtha feeds which comprises contacting said feed, in the presence of hydrogen and at reforming conditions, with a catalyst comprised of platinum and iridium agglomerated to exhibit a crystallinity of at least 50% as measured by X-ray, and an alumina support material modified with at least about 100 wppm of Si and at least 10 wppm and one or more alkaline earth metals selected from Ca, Mg, Ba, and Sr, wherein the total amount of modifier does not exceed about 5000 wppm.

    Abstract translation: 一种用于重整石脑油进料的方法,其包括在氢气和重整条件下使所述进料与由铂和铱组成的催化剂结合,以显示出通过X射线测量的至少50%的结晶度,以及氧化铝 用至少约100wppm的Si和至少10wppm以及一种或多种选自Ca,Mg,Ba和Sr的碱土金属进行改性的载体材料,其中改性剂的总量不超过约5000wppm。

    Catalytic reforming process
    67.
    发明授权
    Catalytic reforming process 失效
    催化重整过程

    公开(公告)号:US4719005A

    公开(公告)日:1988-01-12

    申请号:US943736

    申请日:1986-12-19

    CPC classification number: C10G35/09

    Abstract: Disclosed is a process for improving the octane quality of a naphtha which process comprises contacting the naphtha, at pressures ranging from about 25 psig to about 175 psig, with hydrogen introduced at a rate ranging from about 1000 SCF/B to about 5000 SCF/B, at a temperature from about 800.degree. F. to about 1100.degree. F., and a space velocity ranging from about 1 W/H/W to about 5 W/H/W, and with a catalyst comprised of the metals platinum, rhenium, and iridium on a refractory porous inorganic oxide support, wherein the concentration of each of platinum and rhenium is at least 0.1 percent, and that of iridium is at least 0.15 percent, and at least one of said metals is present in a concentration of at least 0.3 percent, and the sum total of said metals is present in a concentration greater than 0.9 percent.

    Abstract translation: 公开了一种改善石脑油的辛烷值的方法,该方法包括使石脑油在约25psig至约175psig的压力下与以约1000SCF / B至约5000SCF / B的速率引入的氢气接触 在约800°F至约1100°F的温度和约1W / H / W至约5W / H / W的空间速度,以及由金属铂,铼 和铱在耐火多孔无机氧化物载体上,其中铂和铼的各自的浓度为至少0.1%,铱的浓度为至少0.15%,并且所述金属中的至少一种以浓度为 至少0.3%,所述金属的总和以大于0.9%的浓度存在。

    Catalytic reforming process
    68.
    发明授权
    Catalytic reforming process 失效
    催化重整过程

    公开(公告)号:US4541915A

    公开(公告)日:1985-09-17

    申请号:US656714

    申请日:1984-10-01

    CPC classification number: C10G35/22 Y10S585/951

    Abstract: A start-up procedure wherein a halogenated rhenium-containing catalyst, to improve its performance in reforming naphtha feeds, is contacted with water, added with the hydrogen and said feed. During the start-up period, preferably on initiation of the start-up period after aromatics production has begun, a naphtha feed, hydrogen and water are passed cocurrently through the several reactors of a reforming unit and reacted over the halogenated rhenium-containing catalyst. Water is generally added with the naphtha and hydrogen, preferably to the initial reactor of the series of reactors of the reforming unit, in concentration ranging from about 100 vppm of hydrogen to about 10,000 vppm of hydrogen, preferably from about 100 vppm to about 5000 vppm of hydrogen.

    Abstract translation: 一种启动方法,其中将卤代铼催化剂改进石脑油进料重整的性能与加入氢气和所述进料的水接触。 在启动期间,优选在芳族化合物生产开始后的启动时段开始时,石脑油进料,氢气和水同时通过重整单元的几个反应器并在卤代含铼催化剂上反应。 水通常与石脑油和氢气一起加入,优选加入到重整单元的一系列反应器的初始反应器中,浓度范围为约100vppm氢气至约10,000vppm氢气,优选约100vppm至约5000vppm 的氢。

    Production of rhenium-containing reforming catalysts
    69.
    发明授权
    Production of rhenium-containing reforming catalysts 失效
    含铼重整催化剂的生产

    公开(公告)号:US4369129A

    公开(公告)日:1983-01-18

    申请号:US253080

    申请日:1981-04-10

    Abstract: A rhenium-containing catalyst, particularly one comprising platinum and rhenium, composited with a porous inorganic support material, especially alumina, is found to be more selective in hydrocarbon conversion reactions, particularly reforming (hydroforming) when pretreated in a sequence which includes the steps of oxidation, dry hydrogen reduction, and sulfiding. In all embodiments, the hydrogen reduction step is conducted at conditions sufficient to remove product water from the catalyst as it is produced until the catalyst becomes dry, or desiccated, and to continue such treatment until the amount of water contained in the exit gas is less than about 1000 ppm, preferably less than about 500 ppm. In a preferred embodiment, the catalyst is desiccated by an initial high temperature oxidation treat to activate the porous inorganic oxide base, or alumina, and then the hydrogen reduction step is performed at a lower temperature than that employed to effect the oxidation.

    Abstract translation: 发现与含多孔无机载体材料,特别是氧化铝复合的含铼催化剂,特别是含有铂和铼的催化剂在烃转化反应中更具选择性,特别是当按顺序进行预处理时重整(液压成型) 氧化,干氢还原和硫化。 在所有实施方案中,氢还原步骤在足以在产生催化剂直到催化剂干燥或干燥之前从催化剂中除去产物水的条件下进行,并继续进行这种处理,直到出口气体中所含的水量少 比约1000ppm,优选小于约500ppm。 在优选的实施方案中,通过初始高温氧化处理来干燥催化剂以活化多孔无机氧化物碱或氧化铝,然后在比用于氧化的温度低的温度下进行氢还原步骤。

    Reforming with multimetallic catalysts
    70.
    发明授权
    Reforming with multimetallic catalysts 失效
    用多金属催化剂重整

    公开(公告)号:US4342644A

    公开(公告)日:1982-08-03

    申请号:US256322

    申请日:1981-04-22

    CPC classification number: C10G35/09 B01J23/6567

    Abstract: A catalyst constituted of a composite which includes hydrogenation-dehydrogenation components comprised of palladium and rhenium to which a small amount of iridium is added to increase the aromatic content of the reformate, particularly the high octane C.sub.9 + aromatics, and reduce the cooking tendency of the catalyst. It also encompasses the process of employing such catalyst in reforming, particularly high severity low pressure, semi-regenerative reforming.

    Abstract translation: 由复合物组成的催化剂,其包含由钯和铼组成的氢化脱氢组分,其中加入少量的铱以增加重整油,特别是高辛烷值C9 +芳族化合物的芳族含量,并降低催化剂的蒸煮倾向 。 它还包括在重整,特别是高度苛刻的低压,半再生重整中使用这种催化剂的方法。

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