公开(公告)号：US06946114B2

公开(公告)日：2005-09-20

申请号：US09946305

申请日：2001-09-05

Applicant: Joe D. Allison ,  Larry D. Swinney ,  Tianyan Niu ,  Kevin L. Ricketson ,  Daxiang Wang ,  Sriram Ramani ,  Gloria I. Straguzzi ,  David M. Minahan ,  Harold A. Wright ,  Baili Hu

Inventor： Joe D. Allison ,  Larry D. Swinney ,  Tianyan Niu ,  Kevin L. Ricketson ,  Daxiang Wang ,  Sriram Ramani ,  Gloria I. Straguzzi ,  David M. Minahan ,  Harold A. Wright ,  Baili Hu

IPC: B01J23/63 ,  B01J35/04 ,  B01J37/02 ,  C01B3/38 ,  C01B3/40 ,  C01B3/26

CPC classification number: C01B3/40 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0205 ,  C01B3/386 ,  C01B2203/0261 ,  C01B2203/1017 ,  C01B2203/1023 ,  C01B2203/1041 ,  C01B2203/1064 ,  C01B2203/1082 ,  C01B2203/1094 ,  C01B2203/1241 ,  Y02P20/52

Abstract: Lanthanide-promoted rhodium-containing supported catalysts that are active for catalyzing the net partial oxidation of methane to CO and H2 are disclosed, along with their manner of making and high efficiency processes for producing synthesis gas employing the new catalysts. A preferred catalyst comprises highly dispersed, high surface area rhodium on a granular zirconia support with an intermediate coating of a lanthanide metal and/or oxide thereof and is thermally conditioned during catalyst preparation. In a preferred syngas production process a stream of methane-containing gas and O2 is passed over a thermally conditioned, high surface area Rh/Sm/zirconia granular catalyst in a short contact time reactor to produce a mixture of carbon monoxide and hydrogen.

公开(公告)号：US20130230432A1

公开(公告)日：2013-09-05

申请号：US13883312

申请日：2011-11-08

Applicant: William R. Williams ,  Daxiang Wang ,  Theis F. Clarke

Inventor： William R. Williams ,  Daxiang Wang ,  Theis F. Clarke

IPC: B01D53/56 ,  C09C1/48 ,  F23J15/04

CPC classification number: B01D53/56 ,  B01D53/343 ,  B01D53/40 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2256/10 ,  B01D2257/404 ,  B01D2258/0283 ,  C09C1/48 ,  C09C1/50 ,  F23J15/04

Abstract: Methods for control of NOx emission in the incineration of tail gas are provided wherein tail gas that comprises NOx, NOx precursors, or both is introduced into a combustor and diluent is introduced into the combustor for controlling the combustor temperature to a temperature of from about 950° C. to about 1100° C. Methods also are provided for reducing NOx emissions by controlling air-to-fuel ratio in a tail gas combustor while controlling the combustor flame temperature through diluent injections. A boiler unit for carrying out these methods also is provided. A system for carbon black production using the boiler unit also is provided.

Abstract translation: 提供了用于控制尾气焚烧中的NOx排放的方法，其中包括NOx，NOx前体或两者的尾气引入燃烧器中，并且将稀释剂引入燃烧器中，以将燃烧室温度控制在约950℃ ℃至约1100℃。还提供了通过控制尾气燃烧器中的空气与燃料比同时通过稀释剂喷射控制燃烧器火焰温度来减少NOx排放的方法。 还提供了用于执行这些方法的锅炉单元。 还提供了使用锅炉单元的炭黑生产系统。

公开(公告)号：US07056488B2

公开(公告)日：2006-06-06

申请号：US10299879

申请日：2002-11-19

Applicant: Tianyan Niu ,  Daxiang Wang ,  David M. Minahan ,  Harold A. Wright ,  Gloria I. Straguzzi

Inventor： Tianyan Niu ,  Daxiang Wang ,  David M. Minahan ,  Harold A. Wright ,  Gloria I. Straguzzi

IPC: C01B3/26 ,  C01G1/04

CPC classification number: C01B3/40 ,  B01J21/04 ,  B01J21/06 ,  B01J21/066 ,  B01J23/40 ,  B01J23/58 ,  B01J23/63 ,  B01J23/70 ,  B01J23/755 ,  B01J23/78 ,  B01J35/08 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/108 ,  B01J37/0205 ,  C01B3/386 ,  C01B2203/0261 ,  C01B2203/1005 ,  C01B2203/1011 ,  C01B2203/1041 ,  C01B2203/1047 ,  C01B2203/1241 ,  Y02P20/52

Abstract: Controlled pore structure catalysts are disclosed that are active for catalyzing the partial oxidation of methane to CO and H2 and, advantageously, are capable of initiating the reaction without the need for an additional ignition source. A preferred catalyst comprises rhodium and samarium supported on an alumina or modified alumina support having certain surface area, pore volume, pore size and metal dispersion characteristics that permit light-off of the reaction at temperatures below 500° C. and with little or no use of an ignition agent. A method of partially oxidizing a light hydrocarbon to form synthesis gas, and a method of enhancing low-temperature light-off of the process are also described.

Abstract translation: 公开了用于催化甲烷部分氧化为CO和H 2 H的有效的孔结构催化剂，并且有利地能够启动反应而不需要另外的点火源。 优选的催化剂包括负载在具有一定表面积，孔体积，孔径和金属分散特性的氧化铝或改性氧化铝载体上的铑和钐，其允许在低于500℃的温度和少量或不使用的温度下使反应点燃 的点火剂。 还描述了一种部分氧化轻烃以形成合成气的方法，以及提高该方法的低温点火的方法。

公开(公告)号：US06958309B2

公开(公告)日：2005-10-25

申请号：US10210353

申请日：2002-08-01

Applicant: Daxiang Wang ,  Tianyan Niu ,  Gloria I. Straguzzi ,  Harold A. Wright ,  Robin G. Cnossen

Inventor： Daxiang Wang ,  Tianyan Niu ,  Gloria I. Straguzzi ,  Harold A. Wright ,  Robin G. Cnossen

IPC: B01J21/06 ,  B01J23/40 ,  B01J23/63 ,  B01J23/74 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/10 ,  C01B3/38 ,  C01B3/40 ,  B01J23/00 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56

CPC classification number: B01J23/40 ,  B01J21/06 ,  B01J21/066 ,  B01J23/63 ,  B01J23/74 ,  B01J35/002 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/108 ,  B01J37/0205 ,  B01J37/10 ,  C01B3/386 ,  C01B3/40 ,  C01B2203/0261 ,  C01B2203/1047 ,  C01B2203/1082 ,  Y02P20/52

Abstract: A pretreatment method for increasing the average pore size of a catalyst support is disclosed which increases the diffusivity and effectiveness factor η. The pretreatment method includes calcining the support in moisturized air at an elevated temperature sufficient to increase the average pore size. In some embodiments, the support may be treated with an acidic/basic solution prior to the calcination step. Alternatively, the calcination step may occur in a gas mixture including water/air/acidic (or basic) gases.

Abstract translation: 公开了一种用于增加催化剂载体的平均孔径的预处理方法，其增加了扩散系数和有效因子η。 预处理方法包括在足以增加平均孔径的高温下煅烧保湿空气中的载体。 在一些实施方案中，可以在煅烧步骤之前用酸性/碱性溶液处理载体。 或者，煅烧步骤可以在包括水/空气/酸性（或碱性）气体的气体混合物中发生。

公开(公告)号：US20050112047A1

公开(公告)日：2005-05-26

申请号：US11028077

申请日：2005-01-03

Applicant: Joe Allison ,  Larry Swinney ,  Tianyan Niu ,  Kevin Ricketson ,  Daxiang Wang ,  Sriram Ramani ,  Gloria Straguzzi ,  David Minahan ,  Harold Wright ,  Baili Hu

Inventor： Joe Allison ,  Larry Swinney ,  Tianyan Niu ,  Kevin Ricketson ,  Daxiang Wang ,  Sriram Ramani ,  Gloria Straguzzi ,  David Minahan ,  Harold Wright ,  Baili Hu

IPC: B01J23/63 ,  B01J35/04 ,  B01J37/02 ,  C01B3/38 ,  C01B3/40 ,  B01J23/00 ,  C01B3/26 ,  C01B31/18 ,  C01B31/24 ,  C07C1/02 ,  C10K1/00

CPC classification number: C01B3/40 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0205 ,  C01B3/386 ,  C01B2203/0261 ,  C01B2203/1017 ,  C01B2203/1023 ,  C01B2203/1041 ,  C01B2203/1064 ,  C01B2203/1082 ,  C01B2203/1094 ,  C01B2203/1241 ,  Y02P20/52

Abstract: Lanthanide-promoted rhodium-containing supported catalysts that are active for catalyzing the net partial oxidation of methane to CO and H2 are disclosed, along with their manner of making and high efficiency processes for producing synthesis gas employing the new catalysts. A preferred catalyst comprises highly dispersed, high surface area rhodium on a granular zirconia support with an intermediate coating of a lanthanide metal and/or oxide thereof and is thermally conditioned during catalyst preparation. In a preferred syngas production process a stream of methane-containing gas and O2 is passed over a thermally conditioned, high surface area Rh/Sm/zirconia granular catalyst in a short contact time reactor to produce a mixture of carbon monoxide and hydrogen.

Abstract translation: 公开了对催化甲烷净化为CO和H 2 N的活性的镧系元素促进的含铑载体催化剂及其制备方法以及用于生产合成气的高效方法 新催化剂 优选的催化剂包括在粒状氧化锆载体上的高度分散，高表面积的铑，其中含有镧系元素金属和/或其氧化物的中间涂层，并且在催化剂制备期间进行热调节。 在优选的合成气生产过程中，在短接触时间反应器中将含甲烷气体和O 2的气流通过热调节的高表面积Rh / Sm /氧化锆颗粒催化剂以产生混合物 的一氧化碳和氢气。

公开(公告)号：US06896868B2

公开(公告)日：2005-05-24

申请号：US10219148

申请日：2002-08-15

Applicant: Daxiang Wang ,  Baili Hu ,  Yaming Jin ,  Harold A. Wright

Inventor： Daxiang Wang ,  Baili Hu ,  Yaming Jin ,  Harold A. Wright

IPC: B01J23/46 ,  B01J23/94 ,  B01J23/96 ,  B01J35/00 ,  B01J38/04 ,  B01J38/10 ,  B01J38/12 ,  C01B3/38 ,  C01B3/40 ,  C01B3/26

CPC classification number: B01J38/04 ,  B01J23/464 ,  B01J23/94 ,  B01J23/96 ,  B01J35/002 ,  B01J38/10 ,  B01J38/12 ,  C01B3/386 ,  C01B3/40 ,  C01B2203/0261 ,  C01B2203/06 ,  C01B2203/062 ,  C01B2203/1047 ,  C01B2203/1082 ,  C01B2203/1241 ,  Y02P20/52 ,  Y02P20/584

Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.