Carbon dioxide purification in ethylene glycol plants
    2.
    发明授权
    Carbon dioxide purification in ethylene glycol plants 有权
    乙二醇植物二氧化碳净化

    公开(公告)号:US06224843B1

    公开(公告)日:2001-05-01

    申请号:US09394737

    申请日:1999-09-13

    IPC分类号: C01B3120

    摘要: A process is provided for production of substantially pure carbon dioxide from a CO2 off-gas stream from an ethylene glycol plant. Water is condensed from an off-gas stream which contains unsaturated hydrocarbons, saturated hydrocarbons, chlorinated hydrocarbons, carbon dioxide and water. The dewatered gas stream is subjected to catalytic oxidation in the presence of excess oxygen whereby the unsaturated hydrocarbons, saturated hydrocarbons and chlorinated hydrocarbons are oxidized producing an oxidation stream containing carbon dioxide, water and hydrochloric acid. The HCl is removed with an absorbent and substantially pure carbon dioxide is collected. The absorbent-contacted stream can be subjected to catalytic deoxidation in the presence of hydrogen to convert unoxidized oxygen introduced in the catalytic oxidation to water.

    摘要翻译: 提供了用于从来自乙二醇装置的CO 2废气流中生产基本上纯的二氧化碳的方法。 水从含有不饱和烃,饱和烃,氯代烃,二氧化碳和水的废气流中冷凝。 脱水气流在过量氧气的存在下进行催化氧化,由此使不饱和烃,饱和烃和氯代烃氧化,产生含有二氧化碳,水和盐酸的氧化物流。 用吸收剂除去HCl,收集基本上纯的二氧化碳。 吸收剂接触的料流可以在氢的存在下进行催化脱氧,以将在催化氧化中引入的未氧化的氧转化为水。

    Method for the catalytic oxidation of volatile organic compounds
    3.
    发明授权
    Method for the catalytic oxidation of volatile organic compounds 失效
    挥发性有机化合物的催化氧化方法

    公开(公告)号:US06638492B1

    公开(公告)日:2003-10-28

    申请号:US09590454

    申请日:2000-06-09

    IPC分类号: C01B3120

    摘要: A catalyst for the full oxidation of volatile organic compounds (VOC), particularly hydrocarbons, and of CO to CO2, comprising: a non-stoichiometric crystalline compound conventionally designated by a formula which corresponds to A14Cu24O41 (I), where A is Sr or a solid solution of Sr with alkaline-earth metals, alkaline metals, lanthanides; or a non-stoichiometric crystalline compound conventionally designated by a formula which corresponds to B4Cu5O10 (II), where B is Ca or a solid solution of Ca with alkaline-earth metals, alkaline metals, lanthanides; or mixtures thereof; and in that it is prepared in a form which has a large specific surface area, preferably larger than 25 m2/g; a method for preparing the catalysts; their use in methods for the full oxidation of VOC and of CO to CO2; and the oxidation methods.

    摘要翻译: 挥发性有机化合物(VOC),特别是烃和CO至CO 2的完全氧化的催化剂,其包含:通常用相应于A14Cu24O41(I)的式表示的非化学计量的结晶化合物,其中A是Sr或 Sr与碱土金属,碱金属,镧系元素的固溶体; 或通常用对应于B4Cu5O10(II)的式表示的非化学计量的结晶化合物,其中B是Ca或Ca与碱土金属,碱金属,镧系元素的固溶体; 或其混合物; 并且其制备成具有大的比表面积,优选大于25m 2 / g的形式;制备催化剂的方法; 它们用于将VOC和CO至CO 2充分氧化的方法; 和氧化方法。

    Catalysts made from transition metal compounds and 4, 5-diphosphinoacridine-ligands
    4.
    发明授权
    Catalysts made from transition metal compounds and 4, 5-diphosphinoacridine-ligands 失效
    由过渡金属化合物和4,5-二磷酸吖啶配体制成的催化剂

    公开(公告)号:US06290926B1

    公开(公告)日:2001-09-18

    申请号:US09331274

    申请日:1999-06-17

    IPC分类号: C01B3120

    摘要: The present invention relates to the preparation of novel catalysts made from transition metal compounds and “tridentate” 4,5-diphosphinoacridine ligands (“acriphos”). The novel ligands employed herein are diphosphine compounds of 4,5-disubstituted acridine which coordinate transition metals in a three-fold way with the two phosphorus atoms and the acridine nitrogen. The invention also relates to the use of the novel catalysts for the catalysis of carbon monoxide conversion via the water-gas shift reaction (WGSR: CO+H2O→CO2+H2) and for the catalysis of the following reactions: hydroformylation, carbonylation, carboxylation, hydrogenation, hydrocyanogenation, hydrosilylation, polymerization, isomerization, cross-couplings and metathesis. The invention further relates to heretofore unknown syntheses of the 4,5-diphosphinoacridines through the reaction of 4,5-difluoroacridine with alkali metal phosphides [R2P−M+(M+═Li+, Na+, K+, Rb+, Cs+, preferably K+)] or through the reaction of 4,5-dibromoacridine with chlorophosphines (R2PCl) and magnesium, and to the preparation of 4,5-difluoroacridine and 4,5-dibromoacridine.

    摘要翻译: 本发明涉及由过渡金属化合物和“三齿”4,5-二磷酸吖啶配体(“acriphos”)制备的新型催化剂的制备。 本文中使用的新型配体是4,5-二取代吖啶的二膦化合物,其以三重方式与两个磷原子和吖啶氮配位过渡金属。 本发明还涉及新催化剂用于通过水煤气变换反应(WGSR:CO + H 2→CO 2 + H 2)催化一氧化碳转化的用途,并且用于催化下列反应:加氢甲酰化,羰基化, 羧化,氢化,氢氰化,氢化硅烷化,聚合,异构化,交联和复分解。 本发明还涉及通过4,5-二氟吖啶与碱金属磷化物[R2P-M +(M + = Li +,Na +,K +,Rb +,Cs +,优选K +)]的反应的4,5-二磷杂吖啶的未知合成,或 通过4,5-二溴吖啶与氯膦(R2PCl)和镁的反应,以及制备4,5-二氟吖啶和4,5-二溴吖啶。

    Process for the selective oxidation of carbon monoxide in reformed gases
    6.
    发明授权
    Process for the selective oxidation of carbon monoxide in reformed gases 失效
    重整气体中一氧化碳选择性氧化的方法

    公开(公告)号:US06168772A

    公开(公告)日:2001-01-02

    申请号:US08408147

    申请日:1995-03-20

    申请人: Masahiro Watanabe

    发明人: Masahiro Watanabe

    IPC分类号: C01B3120

    CPC分类号: H01M8/0662 C01B32/50

    摘要: We have recently proposed special catalysts, Pt-supported zeolites, for the selective oxidation of carbon monoxide in reformed fuels from methanol or natural gas. They can be applied to polymer electrolyte fuel cells, of which Pt anode catalysts suffer serious poisoning by the trace amount of CO. In order to enhance the performance of the catalysts, the selective CO oxidation was examined over Pt—, Ru—, Pd—, Co—, and PtRu— supported zeolites in a large excess of H2 with the addition of a low concentration of oxygen. It was found that Pt, Ru, and PtRu supported on mordenite can oxidize CO much more selectively than a conventional Pt-supported alumina catalyst. Ru/mordenite showed the highest selectivity of approximately 100% at 200° C. with a certain flow rate of the reactant. Pt-Ru/mordenite exhibited fairly high selectivity of 90% over a wide flow rate condition even at 150° C. Analyses with IR and QCM methods indicated that the selective CO oxidation on Pt—Ru/mordenite can proceed by so-called bi-functional mechanism via the surface reaction between CO and O atoms adsorbed on adjacent Pt and Ru sites.

    摘要翻译: 最近我们提出了特殊的催化剂Pt负载的沸石,用于从甲醇或天然气中重整燃料中的一氧化碳的选择性氧化。 它们可以应用于聚合物电解质燃料电池,其中Pt阳极催化剂由于痕量的CO而遭受严重的中毒。为了提高催化剂的性能,对Pt-,Ru-,Pd- ,Co-和PtRu-负载的沸石,在大量过量的H 2中加入低浓度的氧气。 发现在丝光沸石上负载的Pt,Ru和PtRu可以比常规的Pt负载氧化铝催化剂更有选择地氧化CO。 Ru /丝光沸石在200℃下以一定的反应物流速显示出约100%的最高选择性。 Pt-Ru /丝光沸石甚至在150°C时,在宽流速条件下表现出相当高的90%选择性。用IR和QCM方法分析表明,Pt-Ru /丝光沸石上的选择性CO氧化可以通过所谓的双 - 通过吸附在相邻Pt和Ru位点上的CO和O原子之间的表面反应的功能机制。

    Process for converting coal into fuel cell quality hydrogen and sequestration-ready carbon dioxide
    8.
    发明授权
    Process for converting coal into fuel cell quality hydrogen and sequestration-ready carbon dioxide 失效
    将煤转化为燃料电池质量的氢和封存的二氧化碳的方法

    公开(公告)号:US06669917B2

    公开(公告)日:2003-12-30

    申请号:US09917801

    申请日:2001-07-31

    申请人: Richard K. Lyon

    发明人: Richard K. Lyon

    IPC分类号: C01B3120

    摘要: A process for burning coal to produce substantially pure hydrogen for use in fuel cells, together with “sequestration ready” carbon dioxide and a stream of oxygen depleted air for powering gas turbines, characterized by using a combination of two fluidized bed reactors and a third transfer line reactor, the first reactor being supplied with coal particles or “char” and fluidized with high temperature steam; the second reactor being fluidized with high temperature steam and the third reactor being fluidized by compressed air. Solids circulated among these three reactors include a mixture of materials containing calcium compounds (present as CaO, CaCO3 and mixtures thereof) and iron compounds (present as FeO, Fe2O3 and mixtures thereof). The coal is gasified by the steam in the presence of CaO to produce CaCO3 and relatively pure hydrogen for use in fuel cells per a CO2 acceptor process. Because only part of the coal char input to the first reactor is gasified to produce hydrogen, the remainder can be burned to supply thermal energy necessary to regenerate the CaCO3 back to CaO. Carbon in the middle bed fluidized bed reactor reacts with Fe2O3 in the third reactor and the temperature in the middle fluidized bed reactor is sufficiently high to decompose CaCO3 back into CaO.

    摘要翻译: 一种用于燃烧煤以生产用于燃料电池的基本上纯的氢的方法,以及“隔离准备好”的二氧化碳和用于为燃气轮机供电的耗氧空气流,其特征在于使用两个流化床反应器和第三次转移 第一反应器供应煤颗粒或“炭”并用高温蒸汽流化; 第二反应器用高温蒸汽流化,第三反应器被压缩空气流化。 在这三个反应器中循环的固体包括含有钙化合物(以CaO,CaCO 3及其混合物存在)和铁化合物(以FeO,Fe 2 O 3及其混合物存在)的材料的混合物。 煤在CaO的存在下被蒸汽气化以产生CaCO 3和相对纯的氢气,用于每个CO2受体过程的燃料电池。 由于仅输入到第一反应器的煤焦炭的一部分被气化以产生氢气,所以其余部分可被燃烧以提供再生CaCO3所需的热能回到CaO。 中间床流化床反应器中的碳与第三反应器中的Fe 2 O 3反应,中流化床反应器中的温度足够高以将CaCO3分解成CaO。

    Method and apparatus for producing carbon dioxide
    9.
    发明授权
    Method and apparatus for producing carbon dioxide 失效
    生产二氧化碳的方法和装置

    公开(公告)号:US06537514B1

    公开(公告)日:2003-03-25

    申请号:US09427066

    申请日:1999-10-26

    IPC分类号: C01B3120

    摘要: In a method for the production of carbon dioxide, an oxygen-containing first process gas is flowed along a cathode side of a first oxygen selective ion transport membrane. The membrane is at operating conditions effective to transport a first permeate oxygen portion from the cathode side to an opposite anode side. A carbon-containing second process gas is flowed along the anode side at a flow rate effective to provide a stoichiometric surplus of oxygen on combination with the first permeate oxygen portion. A first mixture of a second process gas and the first permeate oxygen portion is combusted such that substantially all of the second process gas is converted into a second mixture of water and carbon dioxide. The carbon dioxide is separated from such second mixture.

    摘要翻译: 在制造二氧化碳的方法中,含氧的第一工艺气体沿着第一氧选择性离子迁移膜的阴极侧流动。 膜处于有效地将第一渗透氧部分从阴极侧输送到相对的阳极侧的操作条件。 含碳的第二工艺气体沿着阳极侧以与第一渗透氧部分组合以提供化学计量的剩余氧气的流量流动。 将第二工艺气体和第一渗透氧部分的第一混合物燃烧,使得基本上所有的第二工艺气体转化为水和二氧化碳的第二混合物。 二氧化碳与第二混合物分离。

    Catalytical process of methanol reformation
    10.
    发明授权
    Catalytical process of methanol reformation 有权
    催化甲醇改造过程

    公开(公告)号:US06521197B1

    公开(公告)日:2003-02-18

    申请号:US09616950

    申请日:2000-07-14

    IPC分类号: C01B3120

    摘要: This invention relates to an improved process of producing hydrogen and carbon dioxide by the catalytical process of methanol reformation. The improvement resides in the use of catalysts made up substantially of metal oxides selected from the group consisting of Al2O3, TiO2, ZrO2 and ZnO, and which catalyst is in the form of a substantially cylindrical tablet having a maximum diameter in the range from 0.8 to 2.0 mm and a maximum height in the range of from 0.5 to 2.0 mm.

    摘要翻译: 本发明涉及通过甲醇改性的催化方法生产氢和二氧化碳的改进方法。 改进在于使用基本上由选自Al 2 O 3,TiO 2,ZrO 2和ZnO的金属氧化物制成的催化剂,并且该催化剂是基本上为圆柱形的片剂形式,其最大直径在0.8至 2.0毫米,最大高度范围为0.5至2.0毫米。