The objective of this project was to assess the feasibility of using a membrane process to capture CO 2 from coal-fired power plant flue gas. During this program, MTR developed a novel membrane (Polaris™) with a CO 2 permeance tenfold higher than commercial CO 2 -selective membranes used in natural gas treatment. The Polaris™ membrane, combined with a process design that uses a portion of combustion air as a sweep stream to generate driving force for CO 2 permeation, meets DOE post-combustion CO 2 capture targets. Initial studies indicate a CO 2 separation and liquefaction cost of $20 -$30/ton CO 2 using about 15% of the plant energy at 90% CO 2 capture from a coal-fired power plant.Production of the Polaris™ CO 2 capture membrane was scaled up with MTR's commercial casting and coating equipment. Parametric tests of cross-flow and countercurrent/sweep modules prepared from this membrane confirm their near-ideal performance under expected flue gas operating conditions. Commercial-scale, 8-inch diameter modules also show stable performance in field tests treating raw natural gas. These findings suggest that membranes are a viable option for flue gas CO 2 capture. The next step will be to conduct a field demonstration treating a realworld power plant flue gas stream. The first such MTR field test will capture 1 ton CO 2 /day at Arizona Public Service's Cholla coal-fired power plant, as part of a new DOE NETL funded program.335 Final

In this paper we analyze the applicability of seismic full-waveform inversion (FWI) for investigation of tells, which are often characterized by heterogeneous and small-scale stratigraphy. Major aim is to identify location and shape of settlement layers and house remains. Furthermore, a paleochannel, which is important to understand the interaction between tell and the surrounding landscape, was found at the tell flank.

We did geophysical investigations in a provincial vicus in Moesia Inferior, Romania. Magnetics and GPR surveys were combined to detect the rural archaeology. With these methods, we could map the internal layout and buildings in a rural Roman settlement.

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