Process for the production of carbon molecular sieves
    1.
    发明授权
    Process for the production of carbon molecular sieves 失效
    碳分子筛生产工艺

    公开(公告)号:US5498589A

    公开(公告)日:1996-03-12

    申请号:US211207

    申请日:1994-03-21

    IPC分类号: B01J20/20

    CPC分类号: B01J20/20 Y10S95/902

    摘要: A process is disclosed for preparing a carbon molecular sieve used for the separation of oxygen from nitrogen, which comprises the steps of:(a) milling hard coal to a grain size of 95%

    摘要翻译: PCT No.PCT / EP92 / 02275第 371日期1994年3月21日 102(e)1994年3月21日PCT提交1992年10月1日PCT公布。 公开号WO93 / 06920 公开了一种用于制备用于从氮气中分离氧的碳分子筛的方法,其包括以下步骤:(a)将硬煤研磨至95%<20μm的粒度; (b)在流化床中用空气氧化细磨的硬煤; (c)加入水和煤焦油沥青作为粘合剂,并将精细研磨的硬质煤成型; (d)在500〜850℃的温度下在回转窑中成形为细磨的硬质煤,在55〜65分钟的时间内进行碳化,得到堆积密度为 530至560g / l; (e)用蒸汽在900℃下活化碳化产物165至195分钟,得到堆积密度为590至650g / l的烧结碳质产品; 和(f)用碳分解碳氢化合物在750-850℃下处理烧结的碳质产物,得到所述碳分子筛。

    Process for obtaining nitrogen from air or nitrogen-containing gases by
pressure swing adsorption on carbon molecular sieves
    5.
    发明授权
    Process for obtaining nitrogen from air or nitrogen-containing gases by pressure swing adsorption on carbon molecular sieves 失效
    通过碳分子筛上的变压吸附从空气或含氮气体中获得氮的方法

    公开(公告)号:US5275640A

    公开(公告)日:1994-01-04

    申请号:US838284

    申请日:1992-03-04

    摘要: Process for obtaining nitrogen from air or nitrogen-containing gases by pressure exchange adsorption and desorption on two alternately operated adsorbers filled with carbon molecular sieves, whereby air is passed through the adsorber so that the oxygen is adsorbed and enriched nitrogen is obtained, while at the same time the other adsorber is regenerated by pressure relief, whereby in a first carbon molecular sieve layer (on the air intake side) of the two adsorbers, making up 1/20 to 1/2 of the entire carbon molecular sieve layer, a carbon molecular sieve A is introduced which serves simultaneously for the adsorption of the residual humidity and gas separation, and that in a second (on the air-outlet side) carbon molecular sieve layer a carbon molecular sieve B is introduced serving exclusively for gas separation, and that the carbon molecular sieve A has a relative volume of 3.0 to 3.4 and the carbon molecular sieve B has a relative volume of 2.3 to 2.95.

    摘要翻译: PCT No.PCT / EP90 / 02140 Sec。 371日期:1992年3月4日 102(e)日期1992年3月4日PCT 1990年12月10日PCT PCT。 出版物WO91 / 08823 日期:1991年6月27日。通过在填充有碳分子筛的两个交替操作的吸附器上进行压力交换吸附和解吸从空气或含氮气体中获得氮的方法,由此使空气通过吸附器,使得氧被吸附和富集 获得氮气,同时通过压力释放再生另一个吸附器,由此在两个吸附器的第一个碳分子筛层(进气侧)上,占整个的1/20至1/2 引入碳分子筛A,其同时用于吸附残余湿度和气体分离,并且在第二(在出气侧)碳分子筛层上引入碳分子筛B 专用于气体分离,碳分子筛A的相对体积为3.0〜3.4,碳分子筛B的相对体积为2.3〜2.95。

    Process for the enrichment of gases
    6.
    发明授权
    Process for the enrichment of gases 失效
    气体浓缩过程

    公开(公告)号:US4011065A

    公开(公告)日:1977-03-08

    申请号:US523687

    申请日:1974-11-14

    IPC分类号: B01D53/04 C01B13/02 B01D15/06

    摘要: An initial gaseous mixture of at least two components is passed through an adsorber which preferentially adsorbs one of the components. This initially loads the adsorber. Subsequently, another gaseous mixture, having a greater concentration of the preferentially adsorbed component than the initial gaseous mixture, is passed through the adsorber so as to additionally load the adsorber. Part of the gas in the adsorber is then removed. This initially unloads the adsorber and yields a first fraction containing both components with the concentration of the preferentially adsorbed component being greater than that in the initial gaseous mixture. Subsequently, part of the gas still remaining in the adsorber is removed so as to further unload the adsorber. This results in a second fraction including both components and wherein the concentration of the preferentially adsorbed component is greater than that in both the second gaseous mixture to be passed through the adsorber and the first fraction removed from the adsorber. Finally, the remainder of the gas in the adsorber is removed so as to completely unload the adsorber. This yields a third fraction including both components with the concentration of the preferentially adsorbed component being lower than that in the second fraction removed from the adsorber but greater than that in the initial gaseous mixture passed into the adsorber. The first and third fractions may be used for additionally loading the adsorber in a subsequent cycle. A preferred application is the enrichment of oxygen-containing gases, particularly air, which include a component of greater molecular size than oxygen. A preferred adsorber is molecular sieve coke which preferentially adsorbs the oxygen. The process permits air to be enriched to such an extent that the product fraction, namely, the second fraction, removed from the adsorber contains between 70 and 95 volume percent of oxygen.

    Method and apparatus for inerting transport containers
    9.
    发明授权
    Method and apparatus for inerting transport containers 失效
    用于运输集装箱的方法和设备

    公开(公告)号:US4566282A

    公开(公告)日:1986-01-28

    申请号:US591401

    申请日:1984-03-19

    摘要: A simple, inexpensive method of inerting transport containers, particularly for goods which easily spoil in the air, such as foodstuffs, plants and flowers, by a gas which contains nitrogen and a predetermined concentration of up to about 5 vol. % oxygen is made possible in the manner that air is conducted, in a cyclic pressure-change adsorption process, through a layer of adsorbent in which the oxygen in the air is adsorbed on the adsorbent in each case during an adsorption step at a pressure above atmospheric pressure and a nitrogen-rich gaseous mixture still containing oxygen which discharges at the end of the layer of adsorbent is conducted into the transport container to be inerted, and the adsorbed oxygen of the air is desorbed in each case during the desorption steps by reducing the pressure of the adsorbent and, finally, the next adsorption step is started, a multiple of the predetermined quantity of air necessary to maintain the desired oxygen content flowing in the adsorption steps through the layer of adsorbent in a first inerting phase and one time said the quantity of air flowing through it in a second inerting phase.

    摘要翻译: 一种简单,便宜的方法,使运输集装箱,特别是容易在空气中破坏的货物,如食品,植物和花卉,通过含有氮气并且预定浓度高达约5体积的气体。 在循环压力变化吸附过程中,通过吸附剂层吸附空气,使吸附剂上的氧被吸附在吸附剂上,在吸附步骤中,在上述压力下 大气压力和仍然含有在吸附剂层末端排出的氧的富氮气体混合物被导入运输容器中以被惰化,并且在解吸步骤期间每种情况下吸附的空气的氧被解吸,通过减少 吸附剂的压力和最后的下一个吸附步骤开始,在第一惰化阶段和一次所述吸附步骤中保持期望的氧含量在吸附步骤中流过吸附剂层所需的预定量的空气的倍数一次所述 在第二惰化阶段中流过它的空气量。

    Gate valve
    10.
    发明授权
    Gate valve 失效
    闸阀

    公开(公告)号:US4477052A

    公开(公告)日:1984-10-16

    申请号:US476683

    申请日:1983-03-18

    摘要: A gate valve for selectively blocking and unblocking a flow path has a valve body filled with hydraulic liquid and provided with a pair of shutters displaceable by fluid pressure against respective seating surfaces of a valve housing. The valve body is shiftable between a blocking position, in which the shutters are aligned with their seating surfaces, and an unblocking position by means of a plunger projecting into the hollow body in a fluidtight manner but with freedom of relative displacement in the shifting direction. In a valve-closing stroke, the plunger pushes that body into its blocking position solely via the confined liquid; when the body is arrested in that position by a stop, the continuing plunger stroke displaces the liquid to press the shutters onto their seats against a biasing force such as that of elastic membranes holding them onto the body. In a valve-opening stroke, the receding plunger hydraulically withdraws the shutters from their seats and then retracts the valve body into its unblocking position.

    摘要翻译: 用于选择性地阻塞和解除流动路径的闸阀具有填充有液压液体的阀体,并且设置有可以通过流体压力移动的一对百叶窗抵靠阀壳体的相应的安置表面。 阀体可在其中快门与其安置表面对准的阻挡位置和通过以流体密封方式突出到中空本体中的柱塞的松动位置之间移动,但是具有沿换档方向的相对位移的自由度。 在阀关闭行程中,柱塞仅通过限制的液体推动该主体进入其阻挡位置; 当身体通过停止在该位置被阻止时,持续的柱塞行程使液体移动,以克服诸如将它们保持在身体上的弹性膜的偏压力将百叶窗按压到其座椅上。 在开阀行程中,后退柱塞将阀门从其阀座中液压地抽出,然后将阀体缩回其解锁位置。