Separation of water from hydrocarbons
    21.
    发明申请
    Separation of water from hydrocarbons 审中-公开
    水与碳氢化合物的分离

    公开(公告)号:US20090134068A1

    公开(公告)日:2009-05-28

    申请号:US12289295

    申请日:2008-10-24

    IPC分类号: C10G33/04

    CPC分类号: C10G33/04

    摘要: A method for the removal of dissolved water or water and ice from hydrocarbon liquids such as petroleum refinery fuels or natural gas liquids in a manner which enables the fuels to be readily treated by the coalescence/separation technique while reducing the potential for plugging filters and other equipment with ice crystals. Free water or water/ice is removed from the liquid hydrocarbons by contacting the hydrocarbon feed with a treating agent which as an affinity for water prior to subjecting the mixture to coalescence/separation. The treating agent is preferably a co-solvent for the water and the hydrocarbon such as an alcohol e.g. methanol. The treating agent and water are separated from the hydrocarbon component during the coalescence/separation and recirculated to the feed with the composition of the recycle aqueous phase being controlled to achieve the desired level of water removal to meet relevant product specifications. Consistent with the removal of the water during the coalescence/separation, the water concentration of the recycle loop containing the co-solvent/water blend gradually increases with removal of the water from the feed. This progressive increase in water level can be compensated by controlled addition of pure co-solvent to the recycle coupled with continuous or periodic dumping of excess mixture. Alternatively, the circulating mixture may be subjected to continuous or batch regeneration or disposed of in any other way which is convenient and economical.

    摘要翻译: 一种从烃类液体如石油炼厂燃料或天然气液体中除去溶解的水或水和冰的方法,使燃料能够通过聚结/分离技术容易地处理,同时降低堵塞过滤器等的可能性 设备有冰晶。 通过使烃进料与作为水的亲和性的处理剂接触使烃混合物进行聚结/分离之前,从液体烃中除去游离水或水/冰。 处理剂优选是用于水和烃的共溶剂,例如醇如 甲醇。 在聚结/分离过程中将处理剂和水从烃组分中分离出来,再循环到进料中,再循环水相的组成被控制以达到所需的除水水平以满足相关的产品规格。 与在聚结/分离期间除去水一致,含有助溶剂/水混合物的再循环回路的水浓度随着从进料中除去水而逐渐增加。 这种水平的逐渐增加可以通过控制向循环中加入纯的助溶剂以及连续或定期倾倒过量混合物来补偿。 或者,循环混合物可以以方便和经济的任何其它方式进行连续或间歇再生或处理。

    Salt drying process
    22.
    发明申请
    Salt drying process 有权
    盐干燥过程

    公开(公告)号:US20090133577A1

    公开(公告)日:2009-05-28

    申请号:US12289293

    申请日:2008-10-24

    IPC分类号: B01D51/02 C10G33/04

    摘要: A method of drying liquid and gaseous hydrocarbons by contacting a feed stream of the hydrocarbon with an aqueous solution of a salt drying agent prior to passing the stream through a salt dryer to remove part of the water in the stream. The aqueous solution of the salt drying agent is generated in the salt dryer when the partly dried stream comes into contact with the drying salt and forms the solution. The solution is circulated in a loop from the salt dryer to the incoming feed and then through a liquid/liquid coalescer which removes a portion of the water together with dissolved salt from the mixture before the mixture is passed on to the salt dryer where further removal of water occurs. The salt dryer is off-loaded by a substantial factor by the initial partial dehydration and does not require to remove such a large amount of water; the salt consumption is therefore reduced in proportion to the amount of water removed in the treatment steps which precede the dryer.

    摘要翻译: 一种通过使烃的进料流与盐干燥剂的水溶液接触来使液体和气态烃干燥的方法,然后将该流体通过盐干燥器以除去流中的一部分水。 当部分干燥的流体与干燥盐接触并形成溶液时,盐干燥剂的水溶液在盐干燥器中产生。 溶液循环从盐干燥器循环到进入的进料,然后通过液体/液体聚结器循环,液体/液体聚结器将混合物中的一部分水与溶解的盐一起从混合物中除去,然后将混合物通入盐干燥器,进一步除去 发生水。 盐干燥器通过初始部分脱水的实质因素被卸载,并且不需要除去大量的水; 因此,与在干燥器之前的处理步骤中除去的水量成比例地,盐消耗量减少。

    Membrane Barrier films and method of use
    24.
    发明申请
    Membrane Barrier films and method of use 审中-公开
    膜阻隔膜及其使用方法

    公开(公告)号:US20080035574A1

    公开(公告)日:2008-02-14

    申请号:US11890228

    申请日:2007-08-03

    IPC分类号: B01D61/14 B01D69/10 B01D71/00

    摘要: This invention relates to a polymeric membrane assembly which incorporates one or more layers of protective barrier films or protective barrier membrane layers to protect the susceptible polymer membrane from deterioration due to contact with water, oxygen or a combination of both. This invention also relates to a process for utilizing these polymeric membrane assemblies in separation processes involving hydrocarbon feedstreams. More particularly, but not by way of limitation, this invention relates to the use of these polymeric membrane assemblies in processes involving the separation of aromatics from a hydrocarbon based feedstream.

    摘要翻译: 本发明涉及一种聚合物膜组件,其包含一层或多层保护屏障膜或保护屏障膜层,以保护敏感聚合物膜免受由于与水,氧气或两者的组合的接触而劣化。 本发明还涉及在涉及烃进料流的分离过程中利用这些聚合物膜组件的方法。 更具体地但不是限制性的,本发明涉及这些聚合物膜组件在涉及从基于烃的原料流中分离芳族化合物的方法中的用途。

    Hydrotreating process with improved hydrogen management
    27.
    发明授权
    Hydrotreating process with improved hydrogen management 有权
    加氢处理工艺改善了氢气管理

    公开(公告)号:US08518244B2

    公开(公告)日:2013-08-27

    申请号:US11795547

    申请日:2006-01-23

    IPC分类号: C10G45/02

    CPC分类号: C10G45/04

    摘要: This invention relates to an improved hydrotreating process for removing sulfur from naphtha and distillate feedstreams. This improved process utilizes a hydrotreating zone, an acid gas removal zone, and a pressure swing adsorption zone having a total cycle time of less than about 30 seconds for increasing the concentration of hydrogen utilized in the process.

    摘要翻译: 本发明涉及用于从石脑油和馏出物进料流中除去硫的改进的加氢处理方法。 该改进的方法利用加氢处理区,酸性气体去除区和总循环时间小于约30秒的变压吸附区,以增加在该方法中使用的氢的浓度。