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公开(公告)号:US5643354A
公开(公告)日:1997-07-01
申请号:US417584
申请日:1995-04-06
申请人: Rakesh Agrawal , Michael Shi-Kuan Chen , Arthur Ramsden Smith , Robert Michael Thorogood , Thomas Joseph Ward
发明人: Rakesh Agrawal , Michael Shi-Kuan Chen , Arthur Ramsden Smith , Robert Michael Thorogood , Thomas Joseph Ward
CPC分类号: C21B13/002 , C21B13/14 , Y02P10/136 , Y02P10/265 , Y02P10/283 , Y10S75/958
摘要: A direct ironmaking process in which coal and oxygen are used directly for reducing ore and smelting the resulting sponge iron wherein a high-temperature ion transport membrane process recovers oxygen for use in the ironmaking process. Heat for oxygen recovery is provided by combustion of medium-BTU fuel gas generated by the ironmaking process and/or by heat exchange with hot gas provided by the ironmaking process. The ironmaking and oxygen recovery processes can be integrated with a combined cycle power generation system to provide an efficient method for the production of iron, oxygen, and electric power.
摘要翻译: 一种直接炼铁工艺,其中直接使用煤和氧来还原矿石和熔炼所得到的海绵铁,其中高温离子迁移膜工艺回收用于炼铁过程的氧气。 用于氧气回收的热量由通过炼铁过程产生的中BTU燃料气体的燃烧和/或通过与炼铁过程提供的热气体的热交换来提供。 炼铁和氧气回收过程可以与联合循环发电系统集成,以提供生产铁,氧和电力的有效方法。
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公开(公告)号:US4063588A
公开(公告)日:1977-12-20
申请号:US652681
申请日:1976-01-27
CPC分类号: F25J5/00 , Y10S165/10 , Y10T137/4259
摘要: A heat exchanger or regenerator system useable in an air separation plant to minimize infiltration of air into the low pressure nitrogen stream comprising a heat exchanger (regenerator) having at least one flow path for the reversing heat exchange fluids, which flow path has at each end, an inlet branch and an outlet branch, wherein each branch has two series connected valves with a vent pipe between each pair of valves. Fluid flow through the vent pipe is controlled, e.g. by remotely actuable switch valves.
摘要翻译: 一种可在空气分离设备中使用的热交换器或再生器系统,以最小化空气渗透到低压氮气流中的包含热交换器(再生器)的热交换器(再生器),该热交换器(再生器)具有用于反向热交换流体的至少一个流动路径,该流路在每一端 入口分支和出口分支,其中每个分支具有两个串联的阀,在每对阀之间具有通气管。 通过排气管的流体流动被控制,例如, 通过遥控开关阀。
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公开(公告)号:US5980857A
公开(公告)日:1999-11-09
申请号:US40575
申请日:1998-03-18
CPC分类号: C10K1/32 , B01D53/047 , C01B3/16 , C01B3/56 , C10K3/04 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/25 , B01D2256/16 , B01D2256/22 , B01D2257/108 , B01D2257/502 , B01D2257/504 , B01D2257/7025 , B01D2257/80 , B01D2259/40001 , B01D2259/4003 , B01D2259/40037 , B01D2259/40041 , B01D2259/40052 , B01D2259/40056 , B01D2259/40067 , B01D2259/40071 , B01D2259/40079 , B01D2259/4146 , B01D53/0462 , B01D53/0476 , B01D53/261 , C01B2203/043 , C01B2203/047 , C01B2203/0475 , C01B2203/048 , Y02C10/08 , Y02C20/20 , Y02P20/152 , Y02P20/156
摘要: A process for producing hydrogen gas by reacting steam with a gas mixture containing carbon monoxide, carbon dioxide and hydrogen to produce a hydrogen-enriched product gas and subjecting the product gas to pressure swing adsorption to produce a high purity hydrogen product and a hydrogen-depleted waste gas is improved by drying, where necessary, part of the gas mixture and subjecting the dry gas mixture to pressure swing adsorption using a carbon monoxide-selective adsorbent to produce a high purity carbon monoxide product gas and a carbon monoxide-depleted waste gas. Where the gas mixture is produced by endothermic reaction, one or both of the hydrogen-depleted waste gas and the carbon monoxide-depleted waste gas can be used as fuel to supply heat for the endothermic reaction.
摘要翻译: 通过使蒸汽与含有一氧化碳,二氧化碳和氢气的气体混合物反应产生氢气产生氢气的方法,并使产物气体进行变压吸附以产生高纯度氢气产物和贫氢 通过在必要时干燥气体混合物并通过使用一氧化碳选择性吸附剂对干燥气体混合物进行变压吸附以产生高纯度一氧化碳产物气体和一氧化碳贫化废气来改善废气。 在通过吸热反应产生气体混合物的情况下,可以使用一种或两种贫氢废气和一氧化碳贫化废气作为燃料来供给吸热反应的热量。
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公开(公告)号:US5657624A
公开(公告)日:1997-08-19
申请号:US427779
申请日:1995-04-25
CPC分类号: C01B13/0251 , B01D53/22 , B01D53/326 , F01K23/064 , C01B2210/0046 , Y02E20/14 , Y02E20/16 , Y02E20/18 , Y02P20/129
摘要: A method for the recovery of oxygen from air in which a high-temperature ion transport membrane system is integrated with combustion turbine system. Coproduction of oxygen and electric power is achieved in an alternative embodiment by integrating a combined cycle power generation system with an ion transport membrane system. The design performance of the gas turbine in the combined cycle system is maintained by controlled water injection into the membrane non-permeate stream, all or a portion of which optionally is introduced into the gas turbine combustor. Water can be introduced directly into the combustor air inlet. Alternatively, makeup air is added to the membrane feed to maintain the performance of the gas turbine. NOx formation is reduced by introducing the oxygen-depleted non-permeate from the membrane system to the gas turbine combustor.
摘要翻译: 一种用于从空气中回收氧气的方法,其中高温离子迁移膜系统与燃气轮机系统一体化。 通过将联合循环发电系统与离子迁移膜系统相集成,可以在替代实施例中实现氧气和电力的共同生产。 燃气轮机在联合循环系统中的设计性能通过将受控的水注入膜非渗透物流中来维持,其全部或一部分任选地被引入到燃气轮机燃烧器中。 水可直接引入燃烧器空气入口。 或者,补充空气被添加到膜进料中以保持燃气轮机的性能。 通过将氧耗尽的非渗透物从膜系统引入到燃气轮机燃烧器来减少NOx的形成。
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