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    13X ZEOLITE, SYNTHESIS METHOD AND USE THEREOF
    2.
    发明公开
    13X ZEOLITE, SYNTHESIS METHOD AND USE THEREOF 审中-公开

    公开(公告)号：US20240246058A1

    公开(公告)日：2024-07-25

    申请号：US18262882

    申请日：2022-10-17

    申请人： HINDUSTAN PETROLEUM CORPORATION LIMITED

    发明人： Hemant MISHRA ,  Sanju KUMARI ,  Pramod KUMAR ,  Prashant MISHRA

    IPC分类号： B01J20/18 ,  B01J20/28 ,  B01J20/30

    CPC分类号： B01J20/18 ,  B01J20/28011 ,  B01J20/3042 ,  B01J20/3078 ,  B01J20/28064

    摘要： The present disclosure relates to a 13X zeolite, a 13X zeolite adsorbent and a synthesis method thereof. Wherein, the synthesis method includes preparing a seed material by mixing sodium aluminate, sodium silicate, NaOH into water to get a seed mixture, stirring the seed mixture and aging. Then preparing the 13X zeolite by mixing sodium aluminate, sodium silicate, NaOH into water, followed by 0-5 wt. % addition of the seed material to obtain a gel mixture. Stirring the said gel mixture for 1 hour and crystallization of the gel mixture, then a filtration step and a washing step is performed to obtain a 13X zeolite cake. Further, the 13X zeolite cake is dried at 120° C. for 24 hours, then crushed and grinded to obtain a 13X zeolite powder. The 13X zeolite adsorbent is prepared by binding the 13X zeolite powder with a binder.

    CO-PRODUCTION OF HYDROGEN-ENRICHED COMPRESSED NATURAL GAS AND CARBON NANOTUBES
    3.
    发明申请
    CO-PRODUCTION OF HYDROGEN-ENRICHED COMPRESSED NATURAL GAS AND CARBON NANOTUBES 有权

    公开(公告)号：US20220332573A1

    公开(公告)日：2022-10-20

    申请号：US17642029

    申请日：2021-08-03

    申请人： HINDUSTAN PETROLEUM CORPORATION LIMITED

    发明人： Lavanya MEESALA ,  Pramod KUMAR

    IPC分类号： C01B3/26 ,  C01B32/162 ,  B01J8/26

    摘要： The present subject matter relates to co-producing H-CNG and CNTs. The process comprises adding catalyst to a first reactor (110) and activating the catalyst and performing a reaction to obtain H-CNG and CNTs. At a first predetermined time after reaction has progressed in the first reactor (110), catalyst is added to a second reactor (120), activated, and then the reaction proceeds simultaneously in the first reactor (110) and second reactor (120). The use of multiple reactors with staggered start times helps in the continuous co-production of H-CNG and CNTs. Catalyst preparation process is integrated with the co-production process for efficient heat recovery. The first and second reactors are fluidized bed reactors with cantilever trays having weirs for controlling the residence time of the catalyst in the reactor and thereby controlling the purity of CNTs produced.