Abstract: A process for converting a cellulosic feedstock to chemical compound, such as an alcohol, or mixture of chemical compounds, wherein one or more process streams can be used in one or more of the other process steps.

Abstract: A derailleur guard is to be incorporated in a bicycle wheel with a rim, a central hub, a plurality of spokes having first ends connected to the rim and second ends connected to the hub, and a sprocket cluster mounted on one end portion of the hub. The derailleur guard is to be disposed around the hub between the spokes and the sprocket cluster and includes at least two guard plates which are formed as annular segments that cooperatively constitute an annular unit with a central through-hole for extension of the hub therethrough. Each of the guard plates has an inner face formed with a plurality of angularly displaced clip units that are adapted to engage removably some of the spokes of the bicycle wheel.