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1. 发明授权

US5262547A Process for the production of petrochemicals 失效
标题翻译：石油化工生产工艺
公开(公告)号：US5262547A
公开(公告)日：1993-11-16
申请号：US772948
申请日：1991-10-15
申请人： Ramakrishnan Ramachandran , Arthur I. Shirley , Lien-Lung Sheu
发明人： Ramakrishnan Ramachandran , Arthur I. Shirley , Lien-Lung Sheu
IPC分类号： B01J23/889 , B01J19/00 , B01J27/10 , B01J27/122 , C07B33/00 , C07B61/00 , C07C9/06 , C07C9/10 , C07C9/12 , C07C11/04 , C07C11/06 , C07C11/09 , C07C15/04 , C07C15/08 , C07C15/24 , C07C17/10 , C07C17/156 , C07C21/06 , C07C27/14 , C07C45/34 , C07C45/35 , C07C47/06 , C07C47/07 , C07C47/22 , C07C51/215 , C07C51/25 , C07C51/31 , C07C57/05 , C07C59/74 , C07C67/36 , C07C253/24 , C07C253/26 , C07C255/08 , C07D225/08 , C07D301/04 , C07D301/08 , C07D303/04 , C07D307/60 , C07D307/89 , C07D307/33
CPC分类号： C07D301/08 , B01J19/002 , C07C17/156 , C07C253/24 , C07C253/26 , C07C45/34 , C07C45/35 , C07C51/215 , C07C51/252 , C07C51/313 , Y02P20/52
摘要： Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as a byproduct, is oxidized to carbon dioxide and part of the gaseous effluent, comprised mainly of carbon dioxide and unreacted hydrocarbon, is recycled to the reactor. Removal of carbon monoxide from the recycle stream reduces the hazard of a fire or explosion in the reactor or associated equipment. The use of carbon dioxide as the principal diluent increases heat removal from the reactor, thereby increasing the production capacity of the reactor.

2. 发明授权

US5229089A Recovery of flammable materials from gas streams 失效
标题翻译：从气体回收可燃材料
公开(公告)号：US5229089A
公开(公告)日：1993-07-20
申请号：US788644
申请日：1991-11-06
申请人： Ramakrishnan Ramachandran , Arthur I. Shirley
发明人： Ramakrishnan Ramachandran , Arthur I. Shirley
IPC分类号： B01D53/047
CPC分类号： B01D53/0476 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/25 , B01D2256/10 , B01D2256/12 , B01D2256/24 , B01D2256/245 , B01D2257/702 , B01D2257/7022 , B01D2257/7025 , B01D2257/80 , B01D2259/40016 , B01D2259/40022 , B01D2259/4003 , B01D2259/40037 , B01D2259/40062 , B01D2259/40064 , B01D2259/40066 , B01D2259/40067 , B01D2259/401 , B01D2259/402 , B01D53/0473 , B01D53/261 , Y02C20/20
摘要： A process for separating methane from an oxygen-containing gas mixture which contains methane at a concentration greater than the upper explosive gas mixture limit by pressure swing adsorption without producing an explosive gas mixture. The process includes the steps of feeding the gas mixture into an adsorber which contains an adsorbent which preferentially adsorbs methane until the desired production pressure is attained in the adsorber and then stopping the flow of feed gas into the adsorber and charging methane product gas at the production pressure cocurrently into the adsorber while simultaneously withdrawing nonadsorbed product gas from the nonadsorbed product end of the adsorber. The desorbed product stream is enriched in methane relative to the feed stream and the concentration of methane in the nonadsorbed product stream is less than the minimum flammable mixture concentration.

3. 发明授权

US5126463A Process for the production of anhydrides 失效
标题翻译：酸酐生产工艺
公开(公告)号：US5126463A
公开(公告)日：1992-06-30
申请号：US607198
申请日：1990-10-31
申请人： Ramakrishnan Ramachandran , Arthur I. Shirley , Lien-Lung Sheu
发明人： Ramakrishnan Ramachandran , Arthur I. Shirley , Lien-Lung Sheu
IPC分类号： B01J19/00 , C07C17/156 , C07C45/34 , C07C45/35 , C07C51/215 , C07C51/25 , C07C51/31 , C07C253/24 , C07D301/08
CPC分类号： C07D301/08 , B01J19/002 , C07C17/156 , C07C45/34 , C07C45/35 , C07C51/215 , C07C51/252 , C07C51/313
摘要： This invention provides a process for the production of an anhydride by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the anhydride product is removed, carbon monoxide, present in the reactor effluent as a by-product, is oxidized to carbon dioxide and part of the gaseous effluent, comprised mainly of carbon dioxide and unreacted hydrocarbon, is recycled to the reactor. Removal of carbon monoxide from the recycle stream reduces the hazard of a fire or explosion in the reactor or associated equipment. The use of carbon dioxide as the principal diluent increases heat removal from the reactor, thereby increasing the production capacity of the reactor.
摘要翻译：本发明提供了通过烃与基本上纯的氧在合适催化剂存在下的气相反应来生产酸酐的方法。在改进的方法中，除去作为副产物存在于反应器流出物中的酸酐产物被氧化成二氧化碳，并且主要由二氧化碳和未反应的烃组成的部分气体流出物被再循环到反应堆。从循环流中去除一氧化碳减少了反应器或相关设备中的火灾或爆炸危险。使用二氧化碳作为主要稀释剂增加了从反应器中的热量去除，从而提高了反应器的生产能力。

4. 发明申请

US20060204415A1 Monolith based catalytic partial oxidation process for syngas production 审中-公开
公开(公告)号：US20060204415A1
公开(公告)日：2006-09-14
申请号：US11431796
申请日：2006-05-10
申请人： Weibin Jiang , Seungdoo Park , Mark Tomczak , Divyanshu Acharya , Satish Tamhankar , Ramakrishnan Ramachandran
发明人： Weibin Jiang , Seungdoo Park , Mark Tomczak , Divyanshu Acharya , Satish Tamhankar , Ramakrishnan Ramachandran
IPC分类号： B01J8/04 , B01J8/02 , B01J35/02
CPC分类号： C01B3/386 , C01B2203/0261 , C01B2203/043 , C01B2203/046 , C01B2203/047 , C01B2203/0877 , C01B2203/1023 , C01B2203/1041 , C01B2203/1047 , C01B2203/1052 , C01B2203/1064 , C01B2203/1082 , C01B2203/1241 , C01B2203/1276 , C01B2203/146 , C01B2203/148 , C01B2203/1604 , C01B2203/1609 , Y02P20/52
摘要： An improved process for the catalytic partial oxidation of hydrocarbons to produce hydrogen and carbon monoxide and less than ˜2% carbon dioxide is disclosed. The process further permits the reaction to be initiated at room temperature, and utilizes a metal catalyst deposited on a ceria-coated zirconia monolith support, which exhibits high conversions of hydrocarbons to synthesis gas (hydrogen and carbon monoxide).

5. 发明授权

US06743400B2 Sparger configuration for fluidized bed hydrocarbon partial oxidation reactors 失效
标题翻译：用于流化床烃部分氧化反应器的分布器配置
公开(公告)号：US06743400B2
公开(公告)日：2004-06-01
申请号：US09813508
申请日：2001-03-21
申请人： Ramakrishnan Ramachandran , Prabhu Balaraman
发明人： Ramakrishnan Ramachandran , Prabhu Balaraman
IPC分类号： B32B1902
CPC分类号： B01J8/1827 , B01J8/1818 , B01J2208/00548 , B01J2208/00628 , B01J2219/00024 , B01J2219/00259 , B01J2219/0286
摘要： The present invention is directed to a sparger system provided for appropriately feeding reactant streams to fluidized bed reactors of hydrocarbon partial oxidation processes that are retrofitted to selectively recover and recycle unreacted hydrocarbons. As a result of the sparger system, the reactor productivity and selectivity is enhanced while employing only two spargers. Also, the capital cost required for retrofitting existing sparging equipment is minimized, while at the same time, the desired fluidization and catalyst oxidation characteristics are achieved without the formation of flammable mixtures within the sparging system.
摘要翻译：本发明涉及一种用于将反应物流适当地供给到烃部分氧化方法的流化床反应器的喷射器系统，其被改装以选择性地回收和再循环未反应的烃。作为喷射器系统的结果，反应器的生产率和选择性得到提高，同时仅使用两个喷雾器。此外，将现有喷射设备改造所需的资金成本降到最低，同时，在喷射系统内不形成易燃混合物的同时实现所需的流化和催化剂氧化特性。

6. 发明授权

US5908804A Reduction of emissions from FCC regenerators 失效
标题翻译：减少FCC再生器的排放
公开(公告)号：US5908804A
公开(公告)日：1999-06-01
申请号：US926330
申请日：1997-09-05
申请人： Raghu K. Menon , Ramakrishnan Ramachandran
发明人： Raghu K. Menon , Ramakrishnan Ramachandran
IPC分类号： B01J29/08 , B01D53/56 , B01J29/90 , B01J35/10 , B01J38/14 , C10G11/18 , B01J20/34
CPC分类号： C10G11/182 , B01D53/56 , Y02P30/446
摘要： Coke is burned in the regenerator vessel of an FCC complex with a combustion medium consisting of a diluent gas, such as air, enriched with oxygen, The regenerator is operated in partial combustion mode and excess oxygen is introduced into the combustion zone of the regenerator. Emission of nitrogen oxides to the atmosphere is reduced.
摘要翻译：焦炭在FCC复合物的再生器容器中被燃烧介质组成，该燃烧介质由稀释气体（例如富氧的空气）组成。再生器以部分燃烧模式操作，并且过量的氧气被引入再生器的燃烧区。氮氧化物向大气中的排放减少了。

7. 发明授权

US5514204A Process for the purification of nitric oxide 失效
标题翻译：一氧化氮纯化方法
公开(公告)号：US5514204A
公开(公告)日：1996-05-07
申请号：US271592
申请日：1994-07-07
申请人： Lien-Lung Sheu , Ramakrishnan Ramachandran , Theodore R. Galica
发明人： Lien-Lung Sheu , Ramakrishnan Ramachandran , Theodore R. Galica
IPC分类号： A61K33/00 , A61P11/00 , B01D53/02 , B01D53/04 , B01J20/18 , C01B21/24 , B01D53/14
CPC分类号： C01B21/24 , B01D53/04 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2257/302 , B01D2257/404 , B01D2259/40084 , B01D2259/401 , B01D2259/402 , B01D2259/4143
摘要： A gas mixture comprised of nitric oxide and, optionally an inert gas, and containing small amounts of nitrogen dioxide, and perhaps moisture and sulfur dioxide, is purified by passing the gas stream through a bed of metal cation-free silica, alumina, or zeolite. The concentration of nitrogen dioxide, sulfur dioxide and moisture in the gas stream are significantly reduced as the gas mixture passes through the bed of adsorbent.
摘要翻译：由一氧化氮和任选的惰性气体组成的含有少量二氧化氮和可能的水分和二氧化硫的气体混合物通过使气流通过无金属阳离子的二氧化硅，氧化铝或沸石床。当气体混合物通过吸附剂床时，气流中二氧化氮，二氧化硫和水分的浓度显着降低。

8. 发明授权

US4868330A Process for the production of nitriles 失效
标题翻译：腈类生产工艺
公开(公告)号：US4868330A
公开(公告)日：1989-09-19
申请号：US216037
申请日：1988-07-07
申请人： Ramakrishnan Ramachandran , Yagya Shukla , Donald L. MacLean
发明人： Ramakrishnan Ramachandran , Yagya Shukla , Donald L. MacLean
IPC分类号： B01J19/00 , C07C51/215 , C07C51/265
CPC分类号： C07C253/24 , B01J19/002 , C07C253/26 , C07C51/215 , C07C51/265 , Y02P20/52 , Y02P20/582
摘要： An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator provides recycle of a substantial portion of the unreacted hydrocarbon as well as for a controlled amount of a gaseous flame suppressor in the system. The gaseous flame suppressor comprises a substantially unreactive hydrocarbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation reactor is particularly advantageous from an economic view in combination with a pressure swing adsorption unit as the selective separator. The process is characterized by high selectivity to the formation of the product.
摘要翻译：提供了一种改进的方法，用于在合适的催化剂存在下，通过与包含氧气，空气或富氧相对于空气和氨气体的含氧气体与含碳气体反应生产腈。在该方法中，选择性分离器提供大部分未反应烃的再循环以及用于系统中受控量的气态阻燃剂的再循环。当存在于氨氧化反应器的进料中时，气态阻燃剂包含含有1至5个碳原子的基本上不活泼的烃，二氧化碳和氮。从作为选择性分离器的变压吸附装置的经济观点出发，使用空气或富氧空气进入氨氧化反应器的进料是特别有利的。该方法的特征在于对产物形成的高选择性。

9. 发明授权

US07303606B2 Oxy-fuel combustion process 失效
标题翻译：氧燃料燃烧过程
公开(公告)号：US07303606B2
公开(公告)日：2007-12-04
申请号：US11092345
申请日：2005-03-29
申请人： Yongxian Zeng , Divyanshu R. Acharya , Satish S. Tamhankar , Narayanan Ramprasad , Ramakrishnan Ramachandran , Frank R. Fitch , Donald L. MacLean , Jerry Y. S. Lin , Richard H. Clarke
发明人： Yongxian Zeng , Divyanshu R. Acharya , Satish S. Tamhankar , Narayanan Ramprasad , Ramakrishnan Ramachandran , Frank R. Fitch , Donald L. MacLean , Jerry Y. S. Lin , Richard H. Clarke
IPC分类号： B01D53/04
CPC分类号： B01D53/04 , B01D53/047 , B01D2253/10 , B01D2256/12 , B01D2257/102 , B01D2259/40001 , C01B13/0259 , C01B2210/0046 , F23C9/00 , F23C2202/30 , F23L7/007 , F23L2900/07001 , Y02E20/322 , Y02E20/344 , Y02P20/124 , Y10S502/525
摘要： Production of oxygen-enriched gas streams is disclosed herein. Air streams contact an oxygen-selective mixed conductor particularly a perovskite material whereby oxygen is retained or adsorbed on the perovskite and can be employed in a variety of processes such as in combusting a fuel gas, heat recovery and boiler related operations.
摘要翻译：本文公开了富氧气流的生产。空气流接触氧选择性混合导体，特别是钙钛矿材料，由此氧气保留或吸附在钙钛矿上，可用于燃烧燃气，热回收和锅炉相关操作等各种工艺。

10. 发明授权

US06783749B2 Gas recovery process 失效
标题翻译：气体回收过程
公开(公告)号：US06783749B2
公开(公告)日：2004-08-31
申请号：US10144489
申请日：2002-05-13
申请人： Natarajan Narasimhan , Ramakrishnan Ramachandran , Satish S. Tamhankar , Weibin Jiang
发明人： Natarajan Narasimhan , Ramakrishnan Ramachandran , Satish S. Tamhankar , Weibin Jiang
IPC分类号： C01B300
CPC分类号： C01B3/382 , B01D53/047 , B01D53/86 , B01D2253/102 , B01D2253/108 , B01D2256/16 , B01D2257/504 , B01D2257/7025 , B01D2259/40001 , C01B3/386 , C01B3/48 , C01B3/56 , C01B2203/0233 , C01B2203/0261 , C01B2203/0283 , C01B2203/043 , C01B2203/0435 , C01B2203/0465 , C01B2203/047 , C01B2203/0475 , C01B2203/048 , C01B2203/0877 , C01B2203/1023 , C01B2203/1064 , C01B2203/1082 , C01B2203/1205 , C01B2203/1241 , C01B2203/142 , C01B2203/146 , C01B2203/147 , C01B2203/148 , Y02C10/08 , Y02C20/20 , Y02P20/123 , Y02P20/152 , Y02P20/156 , Y02P20/52 , Y02P20/57
摘要： Improved method for recovering hydrogen and carbon monoxide from hydrocarbon conversion processes are disclosed. A monolith catalyst reactor means is utilized in treating the waste gas stream from the hydrocarbon conversion process to assist in recovering hydrogen and carbon monoxide from the waste gas stream. The present invention also provides a method for improving the yield of hydrogen and carbon monoxide from a hydrocarbon conversion process utilizing a monolith catalyst reactor means.
摘要翻译：公开了用于从烃转化方法回收氢和一氧化碳的改进方法。整体催化剂反应器装置用于处理来自烃转化过程的废气流，以帮助从废气流中回收氢气和一氧化碳。本发明还提供了一种利用整体催化剂反应器装置从烃转化方法提高氢和一氧化碳的产率的方法。

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