Post-Synthetic Metalation of MOFs: Alternative Adsorption Sites for Sulfur Gas Uptake

Source: AIChE
  • Checkout

    Checkout

    Do you already own this?

    Pricing


    Individuals

    AIChE Member Credits 0.5
    AIChE Members $19.00
    AIChE Graduate Student Members Free
    AIChE Undergraduate Student Members Free
    Non-Members $29.00
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Annual Meeting
  • Presentation Date:
    November 8, 2021
  • Duration:
    19 minutes
  • Skill Level:
    Intermediate
  • PDHs:
    0.50

Share This Post:

Natural gas and biogas have both gained popularity in recent years as lower-carbon sources of energy. While the main component of interest in these gas streams is methane (CH4), they also contain small amounts of hydrogen sulfide (H2S) that must be removed in order to maximize heat content and protect process equipment. Additionally, SO2 present in flue gas streams must be removed to prevent the formation of acid rain. Selective adsorption of these gases from process streams has the potential to be an energy-efficient method of purification, with metal-organic frameworks (MOFs) being one of the most promising class of adsorbents. Unfortunately, MOF structures often degrade upon adsorption of acid gases; enhancing MOF stability would increase their industrial viability. One strategy for improving structural stability is the introduction of alternative adsorption sites that are separate from the MOF backbone. Specifically, this work focuses on the post-synthetic coordination of metal ions to MOF functional groups. Additional metal sites serve the dual function of providing a stable adsorption site as well as increasing guest-site interactions and thus adsorption capacity. These modified materials were tested in mixtures of CH4/CO2/H2S and CO2/SO2 to represent real-world conditions. This work can be applied to the development of strategies to further stabilize MOFs in acid gas mixtures.
Presenter(s): 
Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.

Checkout

Checkout

Do you already own this?

Pricing


Individuals

AIChE Member Credits 0.5
AIChE Members $19.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $29.00
Language: