METHOD FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE THROUGH THE FLUIDIZED BED CATALYTIC REACTION
    4.
    发明申请
    METHOD FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE THROUGH THE FLUIDIZED BED CATALYTIC REACTION 有权
    通过流化床催化反应从氧化铝生产乙烯甘油的方法

    公开(公告)号:US20130331617A1

    公开(公告)日:2013-12-12

    申请号:US14000876

    申请日:2012-02-24

    Abstract: A process for producing ethylene glycol includes contacting an oxalate with a fluidized bed catalyst under the following conditions: a reaction temperature of from about 170 to about 270° C., a weight space velocity of oxalate of from about 0.2 to about 7 hours−1, a hydrogen/ester molar ratio of about 20˜200:1, a reaction pressure of from about 1.5 to about 10 MPa, and a reaction temperature difference T of from about 1 to about 15° C. The fluidized bed catalyst includes: a) from about 5 to about 80 parts by weight of copper and the oxide thereof, b) from about 10 to about 90 parts by weight of at least one carrier selected from silica, molecular sieve or alumina, c) from about 0.01 to about 30 parts by weight of bismuth and tungsten metallic elements or the oxides thereof, or cerium and niobium metallic elements or the oxides thereof.

    Abstract translation: 制备乙二醇的方法包括在以下条件下使草酸盐与流化床催化剂接触:反应温度为约170至约270℃,草酸的重量空间速度为约0.2至约7小时-1 氢/酯摩尔比为约20〜200:1,反应压力为约1.5〜10MPa,反应温度差T为约1〜约15℃。流化床催化剂包括: )约5至约80重量份的铜及其氧化物,b)约10至约90重量份的至少一种选自二氧化硅,分子筛或氧化铝的载体,c)约0.01至约30 铋和钨金属元素或其氧化物或铈和铌金属元素或其氧化物的重量份。

    Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds
    7.
    发明授权
    Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds 有权
    用于加氢转化和精炼烃进料的催化多阶段方法

    公开(公告)号:US06190542B1

    公开(公告)日:2001-02-20

    申请号:US09241505

    申请日:1999-02-01

    Abstract: A multi-stage catalytic hydrogenation and hydroconversion process for heavy hydrocarbon feed materials such as coal, heavy petroleum fractions, and plastic waste materials. In the process, the feedstock is reacted in a first-stage, back-mixed catalytic reactor with a highly dispersed iron-based catalyst having a powder, gel or liquid form. The reactor effluent is pressure-reduced, vapors and light distillate fractions are removed overhead, and the heavier liquid fraction is fed to a second stage back-mixed catalytic reactor. The first and second stage catalytic reactors are operated at 700-850° F. temperature, 1000-3500 psig hydrogen partial pressure and 20-80 lb./hr per ft3 reactor space velocity. The vapor and light distillates liquid fractions removed from both the first and second stage reactor effluent streams are combined and passed to an in-line, fixed-bed catalytic hydrotreater for heteroatom removal and for producing high quality naphtha and mid-distillate or a full-range distillate product. The remaining separator bottoms liquid fractions are distilled at successive atmospheric and vacuum pressures, low and intermediate-boiling hydrocarbon liquid products are withdrawn, and heavier distillate fractions are recycled and further upgraded to provide additional low-boiling hydrocarbon liquid products. This catalytic multistage hydrogenation process provides improved flexibility for hydroprocessing the various carbonaceous feedstocks and adjusting to desired product structures and for improved economy of operations.

    Abstract translation: 用于重烃原料如煤,重质石油馏分和塑料废料的多阶段催化氢化和加氢转化工艺。 在该方法中,原料在第一级反混合催化反应器中与具有粉末,凝胶或液体形式的高度分散的铁基催化剂反应。 反应器流出物被减压,蒸气和轻馏分馏分顶部除去,较重的液体馏分进料到第二级反混合催化反应器中。 第一级和第二级催化反应器在700-850°F温度,1000-3500psig氢分压和20-80磅/小时/ ft 3反应器空间速度下操作。 蒸汽和轻馏分将从第一和第二阶段反应器中除去的液体馏分进行蒸馏,将流出物流合并,并通入直列固定床催化加氢处理器除去杂质,并生产高质量的石脑油和中间馏分, 范围馏出物。 剩余的分离器底部液体馏分在连续的大气压和真空压力下蒸馏,取出低和中等沸点的烃液体产物,再重馏出馏分,进一步升级以提供另外的低沸点烃液体产物。 这种催化多级氢化方法提供了改进的各种碳质原料的加氢处理和调整到所需产物结构以及改善操作经济性的灵活性。

    Monoalkylene glycol production using mixed metal framework compositions
    8.
    发明授权
    Monoalkylene glycol production using mixed metal framework compositions 失效
    使用混合金属骨架组合物制备单亚烷基二醇

    公开(公告)号:US4967018A

    公开(公告)日:1990-10-30

    申请号:US423703

    申请日:1989-10-18

    Abstract: A process for the catalytic hydrolysis of alkylene oxide to alkylene glycol using a hydrothermally stable, mixed metal framework catalyst composition selected from(a) material having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (OH) 2x+3y-nz A.sub.z.sup.n-. a 1 H.sub.2 O (I) wherein M is at least one divalent metal cation; Q is at least one trivalent metal cation; and A is at least one anion providing a valence (n.sup.31), wherein n is at least 1, and wherein a is a positive number, M, Q, and A are provided in a proportion such that x/y is a number equal to or greater than 1, z has a value greater than zero and 2x+3y-nz is a positive number, and M, Q and A are selected to provide a layered structure, and(b) material prepared by calcining the material of formula (I) having the formulaM.sub.x.sup.2+ Q.sub.y.sup.3+ (O).sub.(2x+3y-nz)/2D.sub.z.sup.n-(II) wherein M, Q, x, y, z and n have the same meanings defined above in connection with formula (I) and D is at least one nonvolatile anion.

    Abstract translation: 使用选自(a)具有式Mx2 + Qy3 +(OH)2x + 3y-nz Azn-的材料的水热稳定的混合金属骨架催化剂组合物将烯化氧催化水解成亚烷基二醇的方法。 1 H 2 O(I)其中M是至少一种二价金属阳离子; Q是至少一种三价金属阳离子; A是至少一种提供价态的阴离子(n31),其中n至少为1,并且其中a为正数,M,Q和A的比例使得x / y为等于 或大于1,z具有大于零的值,并且2x + 3y-nz是正数,并且选择M,Q和A以提供层状结构,和(b)通过煅烧式( I)具有式Mx2 + Qy3 +(O)(2x + 3y-nz)/ 2Dzn-(Ⅱ)其中M,Q,x,y,z和n具有与上述式(I)和 D是至少一种非挥发性阴离子。

    Electrolytic cell cathode
    9.
    发明授权
    Electrolytic cell cathode 失效
    电解槽阴极

    公开(公告)号:US4545883A

    公开(公告)日:1985-10-08

    申请号:US399892

    申请日:1982-07-19

    Abstract: A material for acting as a catalyst for hydrogen evolution in an electrolytic cell is formed from a host matrix including at least one transition element which is structurally modified by incorporating one or more modifier elements at least one of which is a transition element to improve its catalytic properties. The utilization of a disordered material, which can be any of a number of different disordered structures, makes possible the modification of local order chemical environments of the material to create catalytical active sites for the hydrogen evolution reaction. Modifier elements, including for example Ti, Mo, Sr, Si, La, Ce, O and Co, structurally modify the local chemical environments of the host matrix formed of a transition element such as Ni, Mo, or Co to provide a material having an increased density of catalytically active sites which exhibits low overvoltages when utilized as a catalytic material for a electrolyte cell cathode. The material may also include a leachable modifier element, such as Al or Zn, which is partially removed to further modify the material and enhance its catalytic activity. The catalytic material can be formed by vacuum deposition techniques such as by cosputtering the host matrix and modifier elements to form a layer of catalytic material on an electrode substrate.

    Abstract translation: 用作电解槽中析氢催化剂的材料由包含至少一个过渡元素的主体基质形成,所述过渡元素在结构上通过掺入一种或多种改性剂组分进行改性,其中至少一种是过渡元素以改善催化剂 属性。 利用可以是多种不同无序结构中的任何一种的无序材料使得可以修改材料的局部顺序化学环境,以产生用于析氢反应的催化活性位点。 包括例如Ti,Mo,Sr,Si,La,Ce,O和Co的改性元素在结构上改变由过渡元素如Ni,Mo或Co形成的主体基质的局部化学环境,以提供具有 当用作电解质电池阴极的催化材料时,催化活性位点的密度增加,表现出低的过电压。 该材料还可以包括可浸出的改性剂元素,例如Al或Zn,其被部分去除以进一步改性材料并增强其催化活性。 催化材料可以通过真空沉积技术形成,例如通过共溅射主体基质和改性剂元素在电极基底上形成一层催化材料。

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