Amine-grafted MCM-48 and silica xerogel as superior sorbents for acidic gas removal from natural gas

被引:610
作者
Huang, HY
Yang, RT [1 ]
Chinn, D
Munson, CL
机构
[1] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA
[2] Chevron Res & Technol Co, Richmond, CA 94802 USA
关键词
D O I
10.1021/ie020440u
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In an effort to develop selective solid sorbents for acidic gas (CO2 and H2S) removal from natural gas mixtures, we synthesized amine-surface-modified silica xerogel and MCM-48 materials. With large amounts of basic amine groups on the surface, the sorbents are able to selectively bind the acidic gases CO2 and H2S. High adsorption capacities and adsorption rates were obtained for both gases. The adsorption-desorption isotherms of the gases and thermogravinietric analysis of the sorbents showed that these sorbents can be regenerated completely under mild conditions such as those used in pressure swing or temperature swing adsorption processes. We have also investigated the effect of moisture on the adsorption Of CO2 and H2S by TPD-MS and infrared spectroscopy. The results indicated that the presence of water vapor doubled the amount of CO2 adsorbed and barely affected the H2S adsorption.
引用
收藏
页码:2427 / 2433
页数:7
相关论文
共 38 条
  • [1] AMINO-GROUPS IMMOBILIZED ON SILICA-GEL - AN EFFICIENT AND REUSABLE HETEROGENEOUS CATALYST FOR THE KNOEVENAGEL CONDENSATION
    ANGELETTI, E
    CANEPA, C
    MARTINETTI, G
    VENTURELLO, P
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1989, (01): : 105 - 107
  • [2] SILICA-GEL FUNCTIONALIZED WITH AMINO-GROUPS AS A NEW CATALYST FOR KNOEVENAGEL CONDENSATION UNDER HETEROGENEOUS CATALYSIS CONDITIONS
    ANGELETTI, E
    CANEPA, C
    MARTINETTI, G
    VENTURELLO, P
    [J]. TETRAHEDRON LETTERS, 1988, 29 (18) : 2261 - 2264
  • [3] BERGNA HE, 1994, COLLOID CHEM SILICA, pCH8
  • [4] Hybrid processes for the removal of acid gases from natural gas
    Bhide, BD
    Voskericyan, A
    Stern, SA
    [J]. JOURNAL OF MEMBRANE SCIENCE, 1998, 140 (01) : 27 - 49
  • [5] BURWELL RL, 1974, CHEM COMMUN, P342
  • [6] Monoglyceride synthesis by heterogeneous catalysis using MCM-41 type silicas functionalized with amino groups
    Cauvel, A
    Renard, G
    Brunel, D
    [J]. JOURNAL OF ORGANIC CHEMISTRY, 1997, 62 (03) : 749 - 751
  • [7] NONIDEAL ADSORPTION FROM MULTICOMPONENT GAS-MIXTURES AT ELEVATED PRESSURES ON A 5A MOLECULAR-SIEVE
    CHEN, YD
    RITTER, JA
    YANG, RT
    [J]. CHEMICAL ENGINEERING SCIENCE, 1990, 45 (09) : 2877 - 2894
  • [8] COMPARISON OF ACTIVATED CARBON AND ZEOLITE 13X FOR CO2 RECOVERY FROM FLUE-GAS BY PRESSURE SWING ADSORPTION
    CHUE, KT
    KIM, JN
    YOO, YJ
    CHO, SH
    YANG, RT
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1995, 34 (02) : 591 - 598
  • [9] Deshpande R., 1996, U.S. Patent, Patent No. [US5565142A, 5565142]
  • [10] MOLECULAR REDESIGN OF EXPANDED POLYSTYRENE TO ALLOW USE OF CARBON-DIOXIDE AS A FOAMING AGENT .1. REVERSIBLE BINDING OF CO2
    DIAF, A
    ENICK, RM
    BECKMAN, EJ
    [J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1993, 50 (05) : 835 - 844