Patent ID: 11872537
Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 14:
15. The method of claim 14, wherein the tetraamine functionalized metal organic framework comprises a plurality of polytopic organic linkers comprising 4,4′-dioxidobiphenyl-3,3′-dicarboxylate (dotpdc4−), 4,4″-dioxido-[1,1′:4′,1″-terphenyl]-3,3″-dicarboxylate (dotpdc4−), 2,5-bioxidobenzene-1,4dicarboxylate (dobdc4−), or 3,3′ dioxide-biphenyl-4,4′-dicarboxylate (para-carboxylate-dobpdc4−) and the tetraamine functionalized metal organic framework further comprises N,N′-(propane-1,3-diyl)bis(propane-1,3-diamine); N,N′-(butane-1,4-diyl)bis(propane-1,3-diamine); N,N′-(ethane-1,2-diyl)bis(propane-1,3-diamine); N,N′-(propane-1,3-diyl)bis(ethane-1,2-diamine); or N,N′-(ethane-1,2-diyl)bis(ethane-1,2-diamine) and wherein CO2 in the flue gas is reduced to concentration of less than 400 ppmv.