4.7 Article

Highly selective CO2 removal for one-step liquefied natural gas processing by physisorbents

Journal

CHEMICAL COMMUNICATIONS
Volume 55, Issue 22, Pages 3219-3222

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc00626e

Keywords

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Funding

  1. SFI [13/RP/B2549, 16/IA/4624]
  2. QNRF [NPRP10-0107-170119]
  3. National Science Foundation [DMR-1607989]
  4. Major Research Instrumentation Program [CHE-1531590]
  5. XSEDE Grant [TG-DMR090028]
  6. ACS Petroleum Research Fund grant [ACS PRF 56673-ND6]

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Industrial specifications require CO2 concentrations in natural gas below 50 ppm during liquefaction because of corrosion and CO2 freezing. Herein, we report a physisorbent (TIFSIX-3-Ni) that exhibits new benchmark CO2/CH4 selectivity and fast kinetics, thereby enabling one-step LNG processing to CO2 levels of 25 ppm.

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