South Dakota Board of Regents

South Dakota State University

Zhengrong Gu

Qi Hua Fan

Mukul Kumar Dubey

Kevin J Dalsted

Joseph P Polin

Daniel S Humburg

A method for using plasma to activate biochar is disclosed where reactive gas(es) are excited by external power; biochar set on a sample holder is electrically biased or set at a floating potential so that charged particles of a certain type are attracted to the biochar, leading to intensive chemical reactions.

Method for plasma activation of biochar material

An engine exhaust system attachment is provided that includes a housing a fan, a filter, and a conduit. The housing is configured to enclose an exhaust turbine, an exhaust manifold, and at least a portion of an exhaust pipe. The exhaust turbine, the exhaust manifold, and the exhaust pipe are connected to receive exhaust gas from an engine and are mounted to an engine frame of a device. The fan is configured for mounting to the device to move air. The filter is configured for mounting to the fan to receive the moved air and to provide filtered air. The conduit is configured for connecting the filter to the housing to provide the filtered air to the housing.

Exhaust system air filtration housing

Growing community of inventors

Brookings, SD, United States of America

Zhengrong Gu