(499d) Metal Organic Frameworks for Selective Adsorption of t-Butyl Mercaptan from Natural Gas
AIChE Annual Meeting
2014
2014 AIChE Annual Meeting
Environmental Division
Environmental Applications of Adsorption: Gas Phase
Wednesday, November 19, 2014 - 1:24pm to 1:42pm
Selective adsorption of t-butyl mercaptan (TBM), a sulfur odorant, from natural gas
(methane) for turbine corrosion prevention was studied using metal organic frameworks
(MOF) at ambient temperatures and pressures. TBM capacities were measured via
thermogravimetric analyzer and was found to be higher for the MOFs MIL-53(Al) and
Cu-BTC than for zeolites Y and beta, the current leading technology for desulfurization
of gaseous fuel. TBM selectivities were the highest for MIL-53(Al) and zeolite beta,
followed by Cu-BTC and UiO-66(Zr). All adsorbents were regenerated under the same
conditions as pretreatment and subsequent capacities measured over four cycles. MIL-
53(Al) lost about 7% of its original capacity after four cycles, however UiO-66(Zr) was
able to retain all of its original capacity after four cycles, despite having the lowest
initial TBM capacity out of all the materials studied.
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