Storage of natural gas
    1.
    发明授权
    Storage of natural gas 失效
    天然气储存

    公开(公告)号:US5461023A

    公开(公告)日:1995-10-24

    申请号:US156859

    申请日:1993-11-23

    IPC分类号: B01J20/20 F17C11/00

    摘要: Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent having at least 80% of its particle pore volume as micropores having diameters greater than 0.55 nm and less than 0.65 nm, particularly about 0.6 to 0.65 nm. The capacity of such micropores for methane is at least 110 mL methane per mL of carbon (at 300 psig or 2,169 kPa abs.). The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is at least 70 times the volume of the vessel. The deliverable volume is optimized by heating a carbonized polymer in the presence of carbon dioxide to increase the pore volume.

    摘要翻译: 使用碳分子筛吸附剂将天然气储存在约1400至4500kPa的压力下的密封容器中,所述吸附剂具有至少80%的颗粒孔体积的微孔,其直径大于0.55nm且小于0.65nm,特别是约0.6nm 至0.65nm。 这种甲烷微孔的容量为每毫升碳至少110毫升甲烷(在300磅/平方英尺或2,169千帕斯卡)。 填充有碳分子筛颗粒的容器的可输送体积为容器的体积的至少70倍。 通过在二氧化碳存在下加热碳化聚合物以提高孔体积来优化可递送体积。

    Preparation of hydrophobic carbon molecular sieves
    2.
    发明授权
    Preparation of hydrophobic carbon molecular sieves 失效
    疏水性碳分子筛的制备

    公开(公告)号:US4820681A

    公开(公告)日:1989-04-11

    申请号:US137684

    申请日:1987-12-24

    CPC分类号: B01J20/20

    摘要: A method is described for producing hydrophobic carbon molecular sieves. The method does not employ a binder to form or shape previously carbonized materials. Instead, a cross-linked oxygen-free polymer is first produced. Fine particles of this polymer are then pelletized or shaped as by simple extrusion. The extruded pellets are then carbonized in an oxygen-free atmosphere to yield binderless homogeneous particles of similar shape comprised of carbon sieves.

    摘要翻译: 描述了制备疏水性碳分子筛的方法。 该方法不使用粘合剂来形成或形成预先碳化的材料。 相反,首先生成交联的无氧聚合物。 然后将该聚合物的细颗粒通过简单的挤出成形或成型。 然后将挤出的颗粒在无氧气氛中碳化,得到由碳筛组成的类似形状的无粘合剂的均匀颗粒。

    Removal of organic compounds from gas streams using carbon molecular
sieves
    3.
    发明授权
    Removal of organic compounds from gas streams using carbon molecular sieves 失效
    使用碳分子筛从气流中除去有机化合物

    公开(公告)号:US4820318A

    公开(公告)日:1989-04-11

    申请号:US137685

    申请日:1987-12-24

    IPC分类号: B01D53/02 B01J20/20 B01D53/04

    摘要: Volatile organic compounds such as ketones and fluorocarbons are removed from vapor streams by contacting the vapor stream with a bed of an adsorbent comprising a binderless carbon molecular sieve. The carbon molecular sieves are characterized by their method of manufacture which includes forming a polymer from oxygen-free precursors and carbonizing directly to the finished sieve material in the absence of oxygen.

    摘要翻译: 通过使蒸气流与包含无粘合剂碳分子筛的吸附剂床接触,从蒸气流中除去挥发性有机化合物如酮和碳氟化合物。 碳分子筛的特征在于其制造方法,其包括由无氧前体形成聚合物,并且在不存在氧的情况下直接碳化成成品筛材料。