公开(公告)号：US5461023A

公开(公告)日：1995-10-24

申请号：US156859

申请日：1993-11-23

申请人： Chin-Hsiung Chang ,  Gary J. Seminara ,  Alan E. van Til

发明人： Chin-Hsiung Chang ,  Gary J. Seminara ,  Alan E. van Til

IPC分类号： B01J20/20 ,  F17C11/00

CPC分类号： B01J20/20 ,  F17C11/007 ,  Y02C10/08

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。