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    • 2. 发明授权
    • Catalyst and process for oxidation and removal of nitrogen oxides (NOx) from combustion gases
    • 从燃烧气体氧化和除去氮氧化物(NOx)的催化剂和方法
    • US06875409B1
    • 2005-04-05
    • US10038120
    • 2001-11-09
    • Bing ZhouLap-Keung LeeNaresh J. Suchak
    • Bing ZhouLap-Keung LeeNaresh J. Suchak
    • B01J23/00
    • B01J23/002B01D53/944B01D2253/112B01D2255/1021B01D2255/2073B01D2255/20738B01D2255/20746B01D2255/20761B01D2255/91B01J23/78B01J23/83B01J23/894B01J23/8986B01J37/0201B01J37/34B01J2523/00B01J2523/17B01J2523/3706B01J2523/72B01J2523/25
    • A bi-functional oxidation catalyst and process for catalytic oxidation and removal of nitrogen oxides (NOx) from combustion gases derived from combustion of carbonaceous fuels such as coal, oil, or natural gas. The bi-functional catalyst includes adsorption and oxidation function metal oxides provided in adjacent close intimate contact by utilizing a binding agent, such as carboxylic acid and calcining to provide a metal oxide complex having a crystalline form. Such nitrogen oxides (NOx) contained in the combustion gases are initially catalytically oxidized to at least about 50 vol % NO2 and some higher oxides by contact with the bi-functional catalyst at 170-550° F. temperature. The combustion gas containing the partially oxidized NOx is then preferably further chemically oxidized by being mixed with a chemical oxidant such as ozone (O3) in a molar ratio of the chemical oxidant3 to NOx in the range of 0.5:1-1.2:1 to produce higher oxides of nitrogen such as substantially N2O5. The further treated combustion gas containing the N2O5 is next scrubbed with a suitable scrubbing liquid such as water to effectively remove the nitrogen oxides (NOx) and produce a clean treated flue gas stream containing less than about 15 ppm nitrogen oxides and suitable for environmentally safe discharge to the atmosphere.
    • 一种双功能氧化催化剂和从燃烧碳,燃料如煤,油或天然气的燃烧产生的燃烧气体催化氧化和除去氮氧化物(NOx)的方法。 双功能催化剂包括通过利用粘合剂(例如羧酸)和煅烧以提供具有结晶形式的金属氧化物络合物在相邻紧密接触中提供的吸附和氧化功能金属氧化物。 包含在燃烧气体中的这种氮氧化物(NOx)在170-550°F温度下与双功能催化剂接触,最初催化氧化至至少约50vol%的NO 2和一些较高的氧化物。 含有部分氧化的NOx的燃烧气体然后优选通过与化学氧化剂例如臭氧(O 3)以化学氧化剂3与NOx的摩尔​​比在0.5:1-1.2:1的范围内混合而进一步化学氧化,以产生 较高的氮氧化物,例如基本上是N 2 O 5。 接下来用含有N2O5的处理过的燃烧气体用合适的洗涤液如水洗涤以有效去除氮氧化物(NOx)并产生含有小于约15ppm氮氧化物并且适于环境安全排放的清洁处理的烟道气流 到大气。
    • 4. 发明授权
    • Catalyst and process for direct catalystic production of hydrogen peroxide, (H2O2)
    • 用于直接催化生产过氧化氢(H 2 O 2)的催化剂和方法
    • US06168775A
    • 2001-01-02
    • US09140265
    • 1998-08-26
    • Bing ZhouLap-Keung Lee
    • Bing ZhouLap-Keung Lee
    • B01J2118
    • B01J37/0203B01J21/18B01J23/38B01J23/40B01J35/0013B01J37/0211C01B15/029
    • A particulate supported noble metal phase-controlled catalyst material having 5-1000 &mgr;m surface area of 50&mgr;500 m2/gm is provided for use in direct catalytic production of hydrogen peroxide (H2O2) product from hydrogen and oxygen-containing feedstreams. The catalyst is made by depositing phase controlled crystals of a noble metal such as palladium on a suitable particulate support material such as carbon black, by utilizing a precursor solution of the metal and a suitable control ionic polymer having molecular weight of 300-8000 such as sodium polyacrylate in a selected metal to polymer molar ratio of 1:0.1 to 1:10, which procedure provides desired phase control of the noble metal atoms to form widely dispersed minute noble metal crystals on the support material. The invention includes methods for making the catalyst, and also a process for utilizing the catalyst to directly produce high yields of hydrogen peroxide (H2O2) product from hydrogen and oxygen-containing gaseous feedstreams.
    • 提供具有5-500m 2 / gm的5-1000mum表面积的颗粒状负载的贵金属相控催化剂材料,用于从氢气和含氧进料流直接催化生产过氧化氢(H 2 O 2)产物。 通过使用金属的前体溶液和分子量为300-8000的合适的对照离子聚合物(如分子量为300-8000),将贵金属如钯的相控晶体沉积在合适的颗粒载体材料如炭黑上来制备催化剂,例如 聚丙烯酸钠以选择的金属与聚合物的摩尔比为1:0.1至1:10,该方法提供贵金属原子的期望的相位控制,以在载体材料上形成广泛分散的微小贵金属晶体。 本发明包括制备催化剂的方法,以及利用催化剂从氢气和含氧气态进料流直接产生高产率的过氧化氢(H 2 O 2)产物的方法。
    • 6. 发明授权
    • Process for selective oxidation of organic feedstocks with hydrogen peroxide
    • 用过氧化氢选择性氧化有机原料的方法
    • US06500968B2
    • 2002-12-31
    • US09733154
    • 2000-12-08
    • Bing ZhouMichael A. Rueter
    • Bing ZhouMichael A. Rueter
    • C07D30112
    • B01J21/18B01J23/38B01J23/40B01J35/0013B01J37/0203B01J37/0211C01B15/029
    • A process for producing oxidized organic chemical products such as propylene oxide from various organic chemical feedstocks utilizing as oxidant directly produced hydrogen peroxide (H2O2) intermediate oxidizing agent. The hydrogen peroxide intermediate is directly produced from hydrogen and oxygen feeds plus a suitable solvent in a first catalytic reaction step utilizing an active supported phase-controlled noble metal catalyst at reaction conditions of 0-100° C. temperature and 300-3,000 psig pressure. An organic chemical feedstock such as propylene together with the hydrogen peroxide intermediate and solvent solution are fed into a second catalytic reactor maintained at 0-150° C. temperature and 15-1,500 psig pressure and oxidized to produce a desired crude oxidized organic product such as propylene oxide, which is purified by distillation steps and recovered from the solvent solution.
    • 使用氧化剂直接生产过氧化氢(H 2 O 2)中间体氧化剂,从各种有机化学原料生产氧化有机化学产品如环氧丙烷的方法。 在0-100℃温度和300-3000psig压力的反应条件下,使用活性支持相控制的贵金属催化剂,在第一催化反应步骤中,由氢气和氧气进料加合适的溶剂直接生产过氧化氢中间体。 将有机化学原料如丙烯与过氧化氢中间体和溶剂溶液一起进料至保持在0-150℃温度和15-1,500psig压力的第二催化反应器中,并氧化以产生所需的粗氧化有机产物,例如 环氧丙烷,其通过蒸馏步骤纯化并从溶剂溶液中回收。
    • 8. 发明授权
    • Stable concentrated metal colloids and methods of making same
    • 稳定的浓缩金属胶体及其制备方法
    • US07718710B2
    • 2010-05-18
    • US11378057
    • 2006-03-17
    • Cheng ZhangSukesh ParasherMichael A. RueterBing Zhou
    • Cheng ZhangSukesh ParasherMichael A. RueterBing Zhou
    • C09K3/00B01J31/00B01J23/00
    • B01J23/40B01J13/0034B01J13/0039B01J13/0043B01J35/0013B22F1/0022B22F9/26B22F2999/00B82Y30/00B22F2201/013
    • A method for manufacturing stable concentrated colloids containing metal nanoparticles in which the colloid is stabilized by adding a base. This allows the metal particles to be formed in higher concentration without forming larger agglomerates and/or precipitating. The method of manufacturing the stable colloidal metal nanoparticles of the present invention generally includes (i) providing a solution comprising a plurality of metal atoms, (ii) providing a solution comprising a plurality of organic agent molecules, each organic agent molecule comprising at least one functional group capable of bonding to the metal atoms, (iii) reacting the metal atoms in solution with the organic agent molecules in solution to form a mixture comprising a plurality of complexed metal atoms, (iv) reducing the complexed metal atoms in the mixture using a reducing agent to form a plurality of nanoparticles, and (v) adding an amount of a base to the mixture, thereby improving the stability of the nanoparticles in the mixture. The base may be added before or after forming the nanoparticles.
    • 一种制备含有金属纳米粒子的稳定浓缩胶体的方法,其中胶体通过加入碱稳定。 这允许金属颗粒以更高的浓度形成而不形成较大的附聚物和/或沉淀。 制备本发明的稳定胶体金属纳米粒子的方法通常包括(i)提供包含多个金属原子的溶液,(ii)提供包含多个有机试剂分子的溶液,每个有机试剂分子包含至少一个 能够与金属原子键合的官能团,(iii)使溶液中的金属原子与溶液中的有机试剂分子反应,形成包含多个络合的金属原子的混合物,(iv)使用 还原剂形成多个纳米颗粒,和(v)向混合物中加入一定量的碱,从而提高混合物中纳米颗粒的稳定性。 可以在形成纳米颗粒之前或之后加入碱。