Process for the production of petrochemicals
    5.
    发明授权
    Process for the production of petrochemicals 失效
    石油化工生产工艺

    公开(公告)号:US5646304A

    公开(公告)日:1997-07-08

    申请号:US494293

    申请日:1995-06-23

    摘要: A petrochemical is produced by the vapor phase reaction of a hydrocarbon with air in the presence of a suitable catalyst. The petrochemical is removed from the reactor effluent, and part or all of the remaining petrochemical-free gas stream is passed through a hydrocarbon-selective adsorbent, which adsorbs hydrocarbon from the gas stream, leaving a hydrocarbon-depleted waste gas. Hydrocarbon is purged from the adsorbent with air, and the air-hydrocarbon mixture is recycled to the partial oxidation reactor. The purge air, and preferably both the purge air and the petrochemical-free gas stream are dried by passage through beds of zeolite 3A prior to being introduced into the hydrocarbon-selective adsorbent, and the beds of zeolite 3A are regenerated by passing heated hydrocarbon-depleted waste gas therethrough.

    摘要翻译: 在合适的催化剂存在下,通过烃与空气的气相反应产生石化产物。 将石油化学品从反应器流出物中除去,并且部分或全部剩余的不含石油化物的气流通过烃选择性吸附剂,其从气流中吸附烃,留下不含烃的废气。 用空气从吸附剂中清除烃,并将空气 - 烃混合物再循环至部分氧化反应器。 吹扫空气,优选吹扫空气和无石油化学气体气流在引入烃选择性吸附剂之前通过沸石3A的床进行干燥,并且沸石3A的床通过加热的烃 - 贫化的废气通过其中。

    Process and apparatus for the separation of gases
    6.
    发明授权
    Process and apparatus for the separation of gases 失效
    用于分离气体的方法和装置

    公开(公告)号:US5672196A

    公开(公告)日:1997-09-30

    申请号:US510115

    申请日:1995-08-01

    IPC分类号: B01D53/04 B01D53/047

    摘要: Hydrocarbon gas is separated from a gas mixture by concentration swing adsorption in a system consisting of a pair of adjacent adsorption beds that are contained in a cylindrical vessel and separated by a flat partition wall. The system is operated with the beds out of phase, such that one bed is in adsorption service while the other bed is regenerated by purging the bed with air. The pressure and temperature in the bed undergoing adsorption does not differ from the pressure and temperature, respectively in the bed being regenerated sufficiently to create significant stresses in the partition separating the beds. In a modified version, the gas mixture and purge air are dried by simultaneously passing these gases through one pair of adjacent adsorption beds that are contained in a cylindrical vessel and separated by a flat partition wall with the respective pressures and temperatures in the two beds being substantially equal, while a substantially identical pair of adjacent adsorption beds are being regenerated by passing heated nonadsorbed gas from the hydrocarbon adsorption system through the beds at a substantially constant temperature and pressure.

    摘要翻译: 通过在由一对相邻的吸附床组成的系统中通过浓缩变化吸附将气体与气体混合物分离,该吸附床包含在圆柱形容器中并由平坦的分隔壁分隔开。 该系统与床不同步地操作,使得一个床处于吸附作业,而另一个床通过用空气清洗床再生。 进行吸附的床中的压力和温度分别与再生的床中的压力和温度分别不同,以在分隔床的隔板中产生显着的应力。 在改进的方案中,气体混合物和吹扫空气通过同时通过这些气体通过一对相邻的吸附床而被干燥,所述邻近的吸附床包含在圆柱形容器中并由平坦分隔壁隔开,两个床中的相应压力和温度是 基本相同,而基本上相同的一对相邻吸附床是通过使加热的非吸附气体从烃吸附系统通过床在基本恒定的温度和压力下再生的。