Process for catalytically reacting gases having a high SO.sub.2 content
    2.
    发明授权
    Process for catalytically reacting gases having a high SO.sub.2 content 失效
    具有高SO {HD 2 {B含量的气体的催化反应气体的方法

    公开(公告)号:US3997655A

    公开(公告)日:1976-12-14

    申请号:US618192

    申请日:1975-09-30

    IPC分类号: C01B17/765 C01B17/76

    CPC分类号: C01B17/765

    摘要: Gases having a high SO.sub.2 content are catalytically reacted in a contacting zone having a plurality of series-connected contacting trays. A partial stream of partly reacted gases from the contacting zone containing SO.sub.3 is admixed with the SO.sub.2 containing gas before entering the first contacting tray. The gases are subjected to interstage cooling between contacting trays. At least a portion of the partly reacted gases is passed through an absorber prior to mixing with the feed stock gas having a high SO.sub.2 content. The rate at which SO.sub.3 is absorbed is increased in dependence on the loss of catalyst activity in the contacting zones such that the conversion of SO.sub.2 to SO.sub.3 in the contacting trays remains approximately constant.

    摘要翻译: 具有高SO 2含量的气体在具有多个串联连接的接触盘的接触区中催化反应。 在进入第一接触盘之前,将含有SO 3的接触区的部分反应气体的部分气体与含SO 2的气体混合。 气体在接触盘之间经历级间冷却。 在与具有高SO 2含量的原料气体混合之前,部分反应的气体的至少一部分通过吸收器。 吸收SO 3的速率依赖于接触区中催化剂活性的损失而增加,使得接触塔盘中的SO 2转化为SO 3保持近似恒定。

    Process for the catalytic conversion of SO.sub.2 to SO.sub.3
    3.
    发明授权
    Process for the catalytic conversion of SO.sub.2 to SO.sub.3 失效
    催化转化SO(HD 2 {B至SO {HD 3

    公开(公告)号:US4016248A

    公开(公告)日:1977-04-05

    申请号:US662168

    申请日:1976-02-27

    CPC分类号: C01B17/765

    摘要: A process for the catalytic conversion of SO.sub.2 to SO.sub.3 wherein a main stream of SO.sub.2 -containing gas is branched to form a partial stream which is admixed with an oxygen-containing gas and brought to the temperature of the first contact hurdle or stage. The effluent therefrom is mixed with the remainder of the SO.sub.2 -containing gas and is fed to the second contact hurdle or stage. The oxgyen-containing gas is added in an amount sufficient to reduce the SO.sub.2 concentration so that a temperature can be used in the first stage which corresponds to the SO.sub.2 +1/2 O.sub.2 .revreaction.SO.sub.3 equilibrium.

    摘要翻译: 用于将SO 2催化转化为SO 3的方法,其中含SO 2的气体的主流被分支以形成与含氧气体混合并达到第一接触障碍物或阶段的温度的部分物流。 将其流出物与剩余的含SO 2的气体混合并进料到第二接触障碍物或级。 添加含氧气体的量足以降低SO 2浓度,使得可以在对应于SO 2 + 1 / 2O 2→SO 3平衡的第一阶段中使用温度。

    Process for thermally treating solids with high-oxygen gases, especially
for pyrometallurgical applications
    4.
    发明授权
    Process for thermally treating solids with high-oxygen gases, especially for pyrometallurgical applications 失效
    用高氧气体对固体进行热处理的工艺,特别是用于火法冶金应用

    公开(公告)号:US4144051A

    公开(公告)日:1979-03-13

    申请号:US823856

    申请日:1977-08-11

    CPC分类号: C22B1/10 C22B5/14

    摘要: A process for thermally treating fine-grained solids with high-oxygen gases at temperatures at which the solids can form molten and gaseous reaction products comprises carrying out the thermal treatment in a cyclone chamber and thereafter conducting the gases from the cyclone chamber into a horizontal or vertical cooling chamber. The process can be used for the roasting of sulfide ores, ore concentrates and other metallurgical intermediate products. The outlet of the cyclone chamber through which the gases are removed lies approximately along the axis and cooling is carried out in the cooling chamber such that the molten droplets contained in the gas stream entering the latter are cooled in free flight below their solidification point in the gas, i.e., do not contact the walls of the cooling chamber until they are solidified at least along their surfaces.

    摘要翻译: 在固体可以形成熔融和气态反应产物的温度下用高氧气热处理细粒固体的方法包括在旋风室中进行热处理,然后将来自旋风室的气体导入水平或 垂直冷却室。 该工艺可用于焙烧硫化矿石,精矿和其他冶金中间体产品。 除去气体的旋风室的出口大致沿着轴线,并且在冷却室中进行冷却,使得包含在进入其中的气流中的熔融液体在自由飞行中冷却,使其低于其凝固点的温度 气体,即不要与冷却室的壁接触,直到它们至少沿其表面固化。

    Process for absorbing SO.sub.3
    5.
    发明授权
    Process for absorbing SO.sub.3 失效
    吸收SO(HD 3)的方法

    公开(公告)号:US3950493A

    公开(公告)日:1976-04-13

    申请号:US508443

    申请日:1974-09-23

    CPC分类号: C01B17/806 Y10S261/54

    摘要: A process for removing sulfur trioxide from gases wherein the sulfur trioxide-containing gas is treated with sulfuric acid in a Venturi absorber, the sulfur-trioxide laden sulfuric acid is passed in indirect heat exchange with a cooling fluid within the widening outlet of the absorber and the sulfur trioxide-laden sulfuric acid is separated from the gas phase.

    摘要翻译: 一种从气体中除去三氧化硫的方法,其中在文氏管吸收器中用硫酸处理含三氧化硫的气体,将含硫三氧化硫的硫酸与吸收器加宽出口内的冷却流体进行间接热交换, 将含三氧化硫的硫酸与气相分离。

    Fluidized bed reactor
    6.
    发明授权
    Fluidized bed reactor 失效
    流化床反应器

    公开(公告)号:US5215042A

    公开(公告)日:1993-06-01

    申请号:US645379

    申请日:1991-01-18

    摘要: A reactor for combusting fine-grained solid fuels in a circulating fluidized bed contains a combustion chamber, which is provided with lines which open in the lower portion of that chamber and serve to feed primary air, secondary air and solid fuel. The fluidized bed combustion chamber is divided into compartments by at least one partition provided in the upper portion of the fluidized bed combustion chamber. Each compartment communicates through a passage with at least one solids separator, which is connected to means for recycling solids and communicates with the compartment through a passage.

    摘要翻译: 用于在循环流化床中燃烧细粒状固体燃料的反应器包含燃烧室,该燃烧室设置有在该室的下部开口并用于输送一次空气,二次空气和固体燃料的管线。 流化床燃烧室由设置在流化床燃烧室上部的至少一个隔板分成隔室。 每个隔室通过通道与至少一个固体分离器连通,固体分离器连接到用于再循环固体的装置,并通过通道与隔室连通。