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公开(公告)号：US5567667A
公开(公告)日：1996-10-22
申请号：US290831
申请日：1994-10-21
IPC分类号： B01J23/10
CPC分类号： B01J23/10
摘要： An oxidation catalyst composition comprises an intimate mixture of oxides of praseodymium, at least one nonvariable valency Group IIIa element, and, optionally zirconium, said composition containing a total of 5-50% of praseodymium atoms, 0-45% of zirconium atoms, and 20-95% of said non-variable valency Group IIIa element atoms, said percentages being based upon the total number of praseodymium, zirconium, and non-variable valency Group IIIa element atoms in said intimate mixture.
摘要翻译： PCT No.PCT / GB93 / 00356 Sec。 371日期：1994年10月21日 102（e）日期1994年10月21日PCT 1993年2月19日PCT PCT。 第WO93 / 16799号公报 日期1993年9月2日氧化催化剂组合物包含镨氧化物，至少一种非变性价IIIa族元素和任选的锆的所述组合物，所述组合物含有总共5-50％的镨原子，0-45％ 的锆原子和20-95％的所述非可变价IIIa族元素原子，所述百分比基于所述紧密混合物中镨，锆和非可变价IIIa族元素原子的总数。
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公开(公告)号：US5137862A
公开(公告)日：1992-08-11
申请号：US748343
申请日：1991-08-22
CPC分类号： B01J23/63 , B01J23/10 , B01J35/1009
摘要： Compositions suitable for use as oxidation catalysts essentially free from elements, or compounds thereof, of Group VIII of the Periodic Table, comprise an intimate mixture of oxides of at least three elements selected from Groups IIIa and IVa of the Periodic Table, including, of the total number of Group IIIa and IVa element atoms present, a) a total of at least 60% of atoms of at least one element X selected from cerium, zirconium, and hafnium, b) a total of at least 5% of atoms of at least one other element Y different from element X and selected from the variable valency elements titanium, cerium, praseodymium, and terbium; and c) a total of at least 5% of atoms of at least one element Z differing from X and Y and selected from Group IIIa elements.Such compositions, and similar two component compositions wherein X and Y are both cerium, have, after heating for 8 hours at 1200.degree. C., a BET surface area of at least 1 m.sup.2.g.sup.-1 and are particularly useful for the oxidation of a feedstock with an oxygen-containing gas, eg catalytic combustion, especially under conditions such that the catalyst attains a temperature of at least 1000.degree. C.
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公开(公告)号：US5263998A
公开(公告)日：1993-11-23
申请号：US899326
申请日：1992-06-16
CPC分类号： B01J23/63 , B01J23/10 , B01J35/1009
摘要： Compositions suitable for use as oxidation catalysts essentially free from elements, or compounds thereof, of Group VIII of the Periodic Table, comprise an intimate mixture of oxides of at least three elements selected from Groups IIIa and IVa of the Periodic Table, including, of the total number of Group IIIa and IVa element atoms present, a) a total of at least 60% of atoms of at least one element X selected from cerium, zirconium, and hafnium, b) a total of at least 5% of atoms of at least one other element Y different from element X and selected from the variable valency elements titanium, cerium, praseodymium, and terbium; and c) a total of at least 5% of atoms of at least one element Z differing from X and Y and selected from Group IIIa elements. Such composition, and similar two component compositions wherein X and Y are both cerium, have, after heating for 8 hours at 1200.degree. C., a BET surface area of at least 1 m.sup.2 .multidot.g.sup.-1 and are particularly useful for the oxidation of a feedstock with an oxygen-containing gas, e.g. catalytic combustion, especially under conditions such that the catalyst attains a temperature of at least 1000.degree. C.
摘要翻译： 适合用作氧化催化剂的组合物基本上不含周期表第Ⅷ族元素或其化合物，包括选自元素周期表Ⅲa和Ⅳa族的至少三种元素的氧化物的紧密混合物，包括 存在IIIa族和IVa族元素原子的总数，a）选自铈，锆和铪中的至少一种元素X的至少60％的原子的总和，b）总共至少5％的原子 至少一个与元素X不同的元素Y，并且从可变价元素钛，铈，镨和铽中选择; 和c）至少一种元素Z至少5％的原子不同于X和Y并且选自IIIa族元素。 这种组合物和其中X和Y都是铈的类似的双组分组合物在1200℃下加热8小时之后，具有至少1m 2×g-1的BET表面积，并且特别可用于原料氧化 含氧气体，例如 催化燃烧，特别是在催化剂达到至少1000℃的温度的条件下。
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公开(公告)号：US09017642B2
公开(公告)日：2015-04-28
申请号：US12293175
申请日：2007-03-05
CPC分类号： B01J8/02 , B01J8/04 , B01J8/0457 , B01J2208/00203 , B01J2208/00504 , B01J2219/00006 , B01J2219/00038 , B01J2219/0004 , C01B3/382 , C01B3/48 , C01B2203/0244 , C01B2203/0261 , C01B2203/0283 , C01B2203/1241 , C01B2203/127 , C01B2203/1276 , C01B2203/142
摘要： A process for reducing free oxygen in a hydrocarbon gas stream comprises the steps of (i) forming a gas mixture containing hydrogen from a hydrocarbon, (ii) mixing the hydrogen gas mixture with a gaseous hydrocarbon stream containing free oxygen, and (iii) passing the resulting hydrocarbon gas mixture over a conversion catalyst that converts at least a portion of the free oxygen present in the gaseous hydrocarbon to steam.
摘要翻译： 一种用于减少烃气流中的游离氧的方法包括以下步骤：（i）从烃形成含有氢的气体混合物，（ii）将氢气混合物与含有游离氧的气态烃流混合，和（iii）通过 所得烃混合物在转化催化剂上，将至少一部分气态烃中存在的游离氧转化为蒸汽。
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公开(公告)号：US08574328B2
公开(公告)日：2013-11-05
申请号：US12305699
申请日：2007-05-14
CPC分类号： C01B21/04 , B01D53/8671 , B01D2257/104 , C01B3/36 , C01B3/382 , C01B3/386 , C01B3/48 , C01B21/0422 , C01B2203/0244 , C01B2203/0255 , C01B2203/0283 , C01B2203/04 , C01B2203/0405 , C01B2203/0485 , C01B2203/1023 , C01B2203/1041 , C01B2203/1047 , C01B2203/1058 , C01B2203/1064 , C01B2203/107 , C01B2203/1076 , C01B2203/1082 , C01B2203/1241 , C01B2203/127 , C01B2210/0045 , C02F1/20 , C02F2103/023 , C02F2103/08
摘要： A process for reducing free oxygen in a gaseous nitrogen stream comprises the steps of (i) reforming a hydrocarbon to generate a gas mixture containing hydrogen and carbon oxides, (ii) mixing the gas mixture with a nitrogen stream containing free oxygen, and (iii) passing the resulting nitrogen gas mixture over a conversion catalyst that converts at least a portion of the free oxygen present in the nitrogen to steam wherein the hydrocarbon reforming step includes oxidation of a hydrocarbon using an oxygen-containing gas.
摘要翻译： 一种用于减少气态氮气流中的游离氧的方法包括以下步骤：（i）重整烃以产生含有氢和碳氧化物的气体混合物，（ii）将气体混合物与含有游离氧的氮气流混合，和（iii ）将所得氮气混合物通过转化催化剂，所述转化催化剂将存在于氮气中的至少一部分游离氧转化为蒸汽，其中烃重整步骤包括使用含氧气体氧化烃。
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公开(公告)号：US20080313962A1
公开(公告)日：2008-12-25
申请号：US12091258
申请日：2006-10-10
CPC分类号： B01J8/0496 , B01J19/002 , B01J2219/02 , C01B3/38 , C01B2203/0227 , C01B2203/0261 , C01B2203/0495 , C07C29/1518 , C07C41/01 , C10G2/32 , C23F11/02 , C07C31/04 , C07C43/043
摘要： A method for passivating low-alloy steel surfaces in apparatus operating in the temperature range 350 to 580° C. and exposed to a carbon monoxide containing gas mixture comprises adding a passivating compound containing at least one phosphorus (P) atom to the gas mixture. The gas mixture is preferably a reformed gas and also described is a process for producing a synthesis gas wherein, prior to cooling a reformed gas mixture to a temperature between 350 and 580° C. in apparatus having low-alloy steel surfaces downstream of one or more reforming steps, a passivating compound containing at least one phosphorus (P) atom is combined with the gas mixture.
摘要翻译： 在350至580℃的温度范围内操作并暴露于含一氧化碳的气体混合物的设备中钝化低合金钢表面的方法包括向气体混合物中加入含有至少一个磷（P）原子的钝化化合物。 气体混合物优选是重整气体，并且还描述了一种生产合成气的方法，其中在将重整气体混合物冷却至350-580℃之间的温度之前，在具有低合金钢表面的装置中， 更多的重整步骤，含有至少一个磷（P）原子的钝化化合物与气体混合物组合。
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公开(公告)号：US20130248770A1
公开(公告)日：2013-09-26
申请号：US13821882
申请日：2011-08-19
IPC分类号： C01B3/02
CPC分类号： C01B3/02 , B01J8/067 , B01J19/02 , B01J2219/0236 , B01J2219/024 , F28F19/02
摘要： A process for passivation of surfaces of heat exchange apparatus exposed to a synthesis gas containing carbon monoxide, includes the steps of: adding arsine to the synthesis gas to provide a total As concentration in the synthesis gas in range 0.001 to 10 ppmv, (ii) exposing the mixture of hot synthesis gas and arsine to the shell-side surfaces of said heat exchange apparatus to reduce the interaction between the carbon monoxide present in said gas and metals in said surfaces, (iii) recovering a cooled synthesis gas from the shell-side of said apparatus, and (iv) passing the cooled synthesis gas, optionally after further cooling, through a sorbent bed to remove arsenic compounds from the synthesis gas.
摘要翻译： 一种暴露于含有一氧化碳的合成气体的热交换装置的表面的钝化方法包括以下步骤：向合成气中加入胂以提供合成气中的总As浓度范围为0.001至10ppmv，（ii） 将热合成气和胂的混合物暴露于所述热交换装置的壳侧表面，以减少所述气体中存在的一氧化碳和所述表面中的金属之间的相互作用，（iii）从壳层中回收冷却的合成气， （iv）任选地在进一步冷却之后将冷却的合成气通过吸附剂床以从合成气中除去砷化合物。
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公开(公告)号：US08470202B2
公开(公告)日：2013-06-25
申请号：US12091258
申请日：2006-10-10
CPC分类号： B01J8/0496 , B01J19/002 , B01J2219/02 , C01B3/38 , C01B2203/0227 , C01B2203/0261 , C01B2203/0495 , C07C29/1518 , C07C41/01 , C10G2/32 , C23F11/02 , C07C31/04 , C07C43/043
摘要： A method for passivating low-alloy steel surfaces in apparatus operating in the temperature range 350 to 580° C. and exposed to a carbon monoxide containing gas mixture comprises adding a passivating compound containing at least one phosphorus (P) atom to the gas mixture. The gas mixture is preferably a reformed gas and also described is a process for producing a synthesis gas wherein, prior to cooling a reformed gas mixture to a temperature between 350 and 580° C. in apparatus having low-alloy steel surfaces downstream of one or more reforming steps, a passivating compound containing at least one phosphorus (P) atom is combined with the gas mixture.
摘要翻译： 在350至580℃的温度范围内操作并暴露于含一氧化碳的气体混合物的设备中钝化低合金钢表面的方法包括向气体混合物中加入含有至少一个磷（P）原子的钝化化合物。 气体混合物优选是重整气体，并且还描述了一种生产合成气的方法，其中在将重整气体混合物冷却至350-580℃之间的温度之前，在具有低合金钢表面的装置中， 更多的重整步骤，含有至少一个磷（P）原子的钝化化合物与气体混合物组合。
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公开(公告)号：US07727509B2
公开(公告)日：2010-06-01
申请号：US10499227
申请日：2002-12-16
IPC分类号： C01B3/24
CPC分类号： B01J19/002 , B01J8/0496 , B01J8/067 , B01J19/02 , B01J2208/00168 , B01J2208/00212 , B01J2208/00707 , B01J2219/00006 , B01J2219/00272 , B01J2219/0204 , B01J2219/0236 , C01B3/382 , C01B3/384 , C01B2203/0233 , C01B2203/0244 , C01B2203/0811 , C01B2203/0822 , C01B2203/0827 , C01B2203/0844 , C01B2203/1052 , C01B2203/1064 , C01B2203/1235 , C01B2203/127 , C01B2203/141 , C23F11/02 , Y02P20/128
摘要： A method for reducing the interaction between carbon monoxide present in a heat exchange medium and metals on the shell side of heat exchange reformer apparatus used for reforming of hydrocarbons by treatment of the shell-side of said apparatus with an effective amount of at least one passivation compound containing at least one element selected from phosphorus, tin, antimony, arsenic, lead, bismuth, copper, germanium, silver or gold is described. Where volatile compounds are formed by the passivation compound, the method further comprises compound recovery to prevent contamination and deactivation of subsequent process steps. The method reduces side reactions, provides improved reformer tube lifetime and allows tubes to be treated in-situ without the need for process shutdown.
摘要翻译： 一种用于通过用有效量的至少一种钝化处理所述装置的壳侧来减少在热交换介质中存在的一氧化碳与用于重整烃的热交换重整装置的壳侧上的金属之间的相互作用的方法 描述了含有选自磷，锡，锑，砷，铅，铋，铜，锗，银或金中的至少一种元素的化合物。 当通过钝化化合物形成挥发性化合物时，该方法还包括化合物回收以防止后续工艺步骤的污染和失活。 该方法减少了副反应，提供了改进的重整器管寿命，并允许管原位处理，而不需要过程关闭。
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公开(公告)号：US5228847A
公开(公告)日：1993-07-20
申请号：US808803
申请日：1991-12-18
摘要： A combustion process, e.g. for a gas turbine, comprises catalytically combusting part of a fuel/air feed in a preliminary catalyst body which has through passages and supports, or is composed of, a catalyst active for the combustion of the fuel. The resultant heated gas stream is then mixed with the remainder of the feed, and that mixture is combusted, e.g. catalytically in a main catalyst body. The amount of combustion occurring in the preliminary catalyst body is sufficient that combustion of the mixture of the heated gas stream and the remainder of the feed can be sustained at the desired operating conditions. Under those desired operating conditions combustion of the feed could not be sustained in the absence of the heating given by the combustion in the preliminary catalyst body. There may be more than one preliminary catalyst body. The preliminary catalyst body or bodies may also be provided with passages wherein combustion does not take place under the desired operating conditions so that those passages act as a bypass. Preferably the combustion passages of at least the first preliminary catalyst body are of such size, that at the normal operating conditions, the flow therethrough is laminar, whereas the flow through the passages of the main catalyst body, where employed, is turbulent.
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