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143 条记录 (耗时 0.015 秒)

    Ammonia gas generation from urea for low temperature process requirements
    33.
    发明授权
    Ammonia gas generation from urea for low temperature process requirements 有权
    氨气产生尿素用于低温工艺要求

    公开(公告)号：US08951492B2

    公开(公告)日：2015-02-10

    申请号：US13455459

    申请日：2012-04-25

    申请人： William H. Sun ,  John M. Boyle ,  Paul G. Carmignani ,  Scott M. Mayhew

    发明人： William H. Sun ,  John M. Boyle ,  Paul G. Carmignani ,  Scott M. Mayhew

    IPC分类号： C01C1/08

    CPC分类号： C01C1/086 ,  B01J19/0013 ,  B01J19/245 ,  B01J19/2485 ,  B01J2219/00006 ,  B01J2219/00051 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/002 ,  B01J2219/00231 ,  C01B2210/0075 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2900/1404 ,  F01N2900/1628 ,  Y02T10/24

    摘要： Disclosed are methods and apparatus for providing an ammonia feed for a low-temperature process. The process includes two defined stages, gasification and hydrolysis. In a first stage thermal reactor, an aqueous urea solution is fed to a gasification chamber and heated gases are controlled in response to demand from a low temperature process requiring ammonia. The heated gases and aqueous urea are introduced into the gasification chamber upstream to fully gasify the solution of aqueous urea to a first stage gas stream comprising ammonia and isocyanic acid. The first stage gas stream is withdrawn and maintained hot enough to prevent solids formation. All amounts of urea feed, water and heated gases fed into the first stage thermal reactor are monitored and adjusted as necessary to achieve efficient hydrolysis in the second stage hydrolysis reactor. The second stage gas stream is withdrawn from the second stage reactor responsive to demand from a low temperature process requiring ammonia.

    摘要翻译： 公开了用于提供用于低温过程的氨进料的方法和装置。 该方法包括两个定义的阶段，气化和水解。 在第一级热反应器中，将尿素水溶液供给到气化室，并且响应于需要氨的低温过程的需求来控制加热的气体。 将加热的气体和尿素水引入气化室的上游，以将尿素水溶液完全气化成包含氨和异氰酸的第一级气流。 第一级气流被取出并保持足够热，以防止固体形成。 根据需要监测和调整进料到第一级热反应器中的所有量的尿素进料，水和加热气体，以在第二级水解反应器中实现有效的水解。 响应于需要氨的低温过程的需求，第二级气流从第二级反应器中排出。

    Device and method for producing ammonia from solid urea pellets
    35.
    发明授权
    Device and method for producing ammonia from solid urea pellets 有权
    从固体尿素颗粒生产氨的装置和方法

    公开(公告)号：US07294313B2

    公开(公告)日：2007-11-13

    申请号：US11218255

    申请日：2005-09-01

    申请人： Eberhard Jacob ,  Erwin Stiermann

    发明人： Eberhard Jacob ,  Erwin Stiermann

    IPC分类号： B01J8/02 ,  B01J7/00 ,  C01C1/08 ,  F01N3/08 ,  B01D53/34

    CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N2610/02 ,  F01N2610/12 ,  Y02T10/24

    摘要： A device for producing ammonia from urea pellets includes a pellet dispensing device, a pellet accelerator, a pellet shooting channel, and an ammonia reactor having a chamber or zone for shooting in urea pellets and a pellet deflector arranged on an end of the shooting path. The device further includes a urea pellet evaporation device and a hydrolytic catalytic converter. The urea pellets are removed from the reservoir in a regulated number/quantity by a dispensing device and transported to the accelerating device, where the pellets are moved from the pellet shooting channel into the ammonia reactor, where they are broken down into small pieces by impacting a pellet deflector at the end of the shooting path. The pieces are converted into a gas mixture containing ammonia and isocyanic acid by means of a urea evaporation device. The isocyanic acid is subsequently converted into ammonia and carbon dioxide.

    摘要翻译： 用于从尿素颗粒生产氨的装置包括颗粒分配装置，颗粒加速器，颗粒射击通道和具有用于在尿素颗粒中拍摄的室或区域的氨反应器和布置在拍摄路径的端部上的颗粒偏转器。 该装置还包括尿素颗粒蒸发装置和水解催化转化器。 尿素颗粒通过分配装置以规定数量/数量从储存器中取出并运送到加速装置，其中颗粒从颗粒射流通道移动到氨反应器中，在那里它们通过冲击分解成小块 在射击路径尽头的一个小球偏转器。 通过尿素蒸发装置将片状物转化成含有氨和异氰酸的气体混合物。 异氰酸随后转化成氨和二氧化碳。

    Rotary cathode cell
    38.
    发明授权
    Rotary cathode cell 失效
    旋转阴极细胞

    公开(公告)号：US3840453A

    公开(公告)日：1974-10-08

    申请号：US25486672

    申请日：1972-05-19

    申请人： OLIN CORP

    发明人： COOPER R ,  PUTNAM C

    IPC分类号： C25B1/36 ,  C25B9/14 ,  B01K3/00 ,  C01B7/06 ,  C01C1/08

    CPC分类号： C25B9/14 ,  C25B1/36

    摘要： 1. A ROTARY CATHODE CELL FOR THE ELECTROYLSIS OF AQUEOUS ALKALI METAL CHLORIDE BRINES, COMPRISING A HORIZONTALLY ARRANGED SEALED CONTAINER,; INLET AND OUTLET MEANS FOR BRINE AND LIQUID METAL CATHODE, OUTLET MEANS FOR CHLORINE GAS; SAID LIQUID METAL CATHODE BEING ARRANGED AT THE BOTTOM OF SAID CONTAINER; A ROTATABLE CYLINDER ARRANGED HORIZONTALLY WITHIN AND SPACED FROM SAID CONTAINER, SAID CYLINDER CONTACTING AND BEING WETTED BY SAID LIQUID METAL CATHODE; AT LEAST ONE ANODE SUPPORTED FROM THE UPPER PART OF SAID CONTAINER, SAID ANODE BEING SUBSTANTIALLY ABOVE AND HAVING ONE FACE CONCENTRIC WITH AND UNIFORMALY SPACED FROM A PORTION OF THE SURFACE OF SAID CYLINDER; A PARTITION SEPARATING SAID INLET AND OUTLET MEANS FOR SAID LIQUID METAL CATHODE; AND MEANS TO SUPPORT AND ROTATE SAID CYLINDER.