Method and device for safe storage and use of volatile ammonia storage materials
    11.
    发明授权
    Method and device for safe storage and use of volatile ammonia storage materials 失效
    用于安全储存和使用挥发性氨储存材料的方法和装置

    公开(公告)号:US08088201B2

    公开(公告)日:2012-01-03

    申请号:US12514611

    申请日:2007-12-21

    Inventor: Tue Johannessen

    Abstract: There is described a method and apparatus (100, 100′) for storing and delivering ammonia wherein at least two ammonia storage materials (1a, 2a) capable of reversibly adsorbing or absorbing ammonia having different ammonia vapor pressures are used. Ammonia storage material (2a) having a lower vapor pressure, which is only partially saturated with ammonia or void of ammonia, is brought into fluid communication with ammonia storage material (1a) having a higher ammonia vapor pressure to adsorb or absorb ammonia released from the ammonia storage material (1a) having a higher ammonia vapor pressure when the latter is higher than a pressure threshold. An automotive NOx treatment system (200) comprising such apparatus (100, 100′) is also described.

    Abstract translation: 描述了用于存储和输送氨的方法和装置(100,100'),其中使用能够可逆地吸附或吸收具有不同氨蒸气压的氨的至少两个氨储存材料(1a,2a)。 具有较低蒸气压的氨储存材料(2a)仅氨被部分饱和或氨的空隙与具有较高氨蒸气压的氨储存材料(1a)流体连通以吸附或吸收从 氨储存材料(1a)当氨气储存材料(1a)高于压力阈值时具有较高的氨蒸汽压力。 还描述了包括这种装置(100,100')的汽车NOx处理系统(200)。

    Production of Saturated Ammonia Storage Materials
    13.
    发明申请
    Production of Saturated Ammonia Storage Materials 有权
    生产饱和氨储存材料

    公开(公告)号:US20100266475A1

    公开(公告)日:2010-10-21

    申请号:US12576582

    申请日:2009-10-09

    CPC classification number: C01C1/006 C01F5/30 C01F11/24

    Abstract: A process for saturating a material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia comprises treating said material under a pressure and associated temperature located on the vapor pressure curve of ammonia with an amount of liquid ammonia sufficient to saturate said material and an additional amount of a cooling agent selected from liquid ammonia, liquid or solid CO2, hydrocarbons and hydrohalocarbons that have a higher vapour pressure than ammonia, ethyl ether, methyl formate, methyl amine and ethyl amine, such that |Qabs|≦|Qevap|+Qext, wherein Qabs is the amount of heat released from said material when it absorbs ammonia from the liquid phase thereof to the point where it is saturated with ammonia, Qevap is the amount of heat absorbed by said cooling agent when it evaporates, and Qext is the amount of heat exchanged with the surroundings and is positive, if heat is removed from the process by external cooling, and negative, if heat is added to the process from the surroundings.

    Abstract translation: 使能够通过吸收和吸收结合氨并且最初不含氨或部分被氨饱和的材料饱和的材料的方法包括在氨的蒸气压曲线下的压力和相关温度下处理所述材料,其量足够的液氨 使所述材料饱和并加入选自液氨,液态或固体二氧化碳,碳氢化合物和氢卤素的冷却剂,其蒸汽压高于氨,乙醚,甲酸甲酯,甲胺和乙胺,使得| Qabs |≦̸ | Qevap | + Qext,其中Q abs是当从其液相吸收氨到其被氨饱和的点时从所述材料释放的热量,Qevap是由所述冷却剂吸收的热量 当它蒸发时,并且Qext是与周围环境交换的热量并且是正的,如果通过外部冷却从工艺中除去热量,则 如果从周围环境中加入热量,则为负值。

    METHOD AND DEVICE FOR CONTROLLED DOSING OF A GAS WITH FLUCTUATING SUPPLY PRESSURE
    16.
    发明申请
    METHOD AND DEVICE FOR CONTROLLED DOSING OF A GAS WITH FLUCTUATING SUPPLY PRESSURE 有权
    用于控制具有压力供应压力的气体的方法和装置

    公开(公告)号:US20130098003A1

    公开(公告)日:2013-04-25

    申请号:US13634334

    申请日:2010-11-03

    Applicant: Jan Pietraszek

    Inventor: Jan Pietraszek

    Abstract: A method for controlled dosing of a gas with fluctuating supply pressure (PSupply). Dosing of the gas through a valve (6) is performed while a valve (5) is closed, and the decrease in control-volume pressure (PCV) is recorded. The control-volume pressure (PCV) is raised by closing dosing valve (6) and opening the valve (5). The amount of the dosed gas is calculated based on the known volume (VCV) of the control volume (4) and at least one of the change in control-volume pressure (PCV) and control-volume temperature (TCV) in the period where valve (5) is closed. The amount of dosed gas is compared with a target or set-point to adjust or regulate the subsequent dosing period or dosing event.

    Abstract translation: 用于控制供给压力供给压力的方法(PSupply)。 在阀(5)关闭的同时执行通过阀(6)的气体的加注,并且记录控制体积压力(PCV)的降低。 通过关闭计量阀(6)并打开阀(5)来提高控制体积压力(PCV)。 计量的气体量基于控制体积(4)的已知体积(VCV)和控制体积压力(PCV)和控制体积温度(TCV)的变化中的至少一个来计算,其中 阀(5)关闭。 将剂量的气体与目标或设定点进行比较,以调整或调节随后的给药时间或给药事件。

    METHOD FOR STORING AND DELIVERING AMMONIA FROM SOLID STORAGE MATERIALS USING A VACUUM PUMP
    18.
    发明申请
    METHOD FOR STORING AND DELIVERING AMMONIA FROM SOLID STORAGE MATERIALS USING A VACUUM PUMP 有权
    使用真空泵从固体储存材料储存和输送氨的方法

    公开(公告)号:US20120045379A1

    公开(公告)日:2012-02-23

    申请号:US13257195

    申请日:2010-03-18

    Abstract: In a method of storing and releasing gaseous ammonia from solid storage materials a first solid storage material (14) capable of releasing ammonia by desorption in a first container (10) and a second solid storage material (24) capable of ad- or absorbing ammonia reversibly and having a higher affinity for ammonia than the first storage material (14) in a second container (20) smaller than said first container (10) are in fluid communication. The pressure in at least the first container (10) is kept below the equilibrium pressure between ammonia and the storage material contained therein by means of a pump (28). When the pressure in the first container (10) is below a pressure threshold where the first storage material (14) does not release an amount of ammonia required by an ammonia consuming device connected with the containers via the vacuum pump (28), the second storage material (24) is heated such that the ammonia pressure of the second material (24) is higher than the ammonia pressure of the first material (14). The ammonia released by the second material (24) is continuously pumped off so as to deliver sufficient ammonia to said ammonia consuming unit. A device for carrying out the method is also described.

    Abstract translation: 在从固体储存材料储存和释放气态氨的方法中,能够通过在第一容器(10)中解吸而释放氨的第一固体储存材料(14)和能够吸附或吸收氨的第二固态储存材料(24)的方法 在比第一容器(10)小的第二容器(20)中可逆地并且具有比第一存储材料(14)更高的氨的亲和力是流体连通的。 至少第一容器(10)中的压力通过泵(28)保持在氨和容纳在其中的储存材料之间的平衡压力以下。 当第一容器(10)中的压力低于第一储存材料(14)不经由真空泵(28)释放与容器连接的氨消耗装置所需的氨的量的压力阈值时,第二容器 储存材料(24)被加热,使得第二材料(24)的氨压力高于第一材料(14)的氨压力。 由第二材料(24)释放的氨被连续泵送,以便向氨消耗单元输送足够的氨。 还描述了用于执行该方法的装置。

Patent Agency Ranking