MOF ADSORBENTS FOR CO2 CAPTURE FROM HYDROCARBON STREAMS
Opportunity
Efficient CO2 capture and storage technologies can reduce the environmental impact of fossil fuel use. Conventional chemical sorbents based on aqueous amine solutions have disadvantages of thermal degradation, corrosion, oxidative reactions, and usually energy-intensive regeneration processes. Traditional solid sorbents, such as zeolites and porous carbon–based materials, have either inadequate CO2 uptake capacity in humid gas streams or low adsorption capacities and poor CO2/N2 selectivities
Technology
Metal-Organic Framework (MOFs) material have been developed for CO2 capture from flue gas or hydrocarbon gas streams. MOFs, with their high surface areas, tunable pore sizes, surface functionality, and structural diversity, offer several advantages as the next-generation solid adsorbent materials for CO2 capture. These MOFs have been developed for their low production cost using commercially available cost efficient raw material as well as ease of manufacture.
Figure 2. (a) N2 adsorption−desorption isotherms at 77 K. (b, c) C2H2 and CO2 adsorption isotherms on (b) NUS-71 and (c) NUS-72. (d) Dynamic breakthrough curves of C2H2/CO2 on NUS-71 at 298 K.