Conversion of coal and biomass to clean burning DME

FUEL 107

Nicole Reed, njr142@psu.edu, Jamie Clark, jmc534@psu.edu, Gregory K. Lilik, gkl108@psu.edu, Qixiu Li, qul106@psu.edu, Chunmei Wang, cuw145@psu.edu, and André L. Boehman, boehman@ems.psu.edu. Department of Energy & Geo-Environmental Engineering, The Pennsylvania State University, University Park, PA 16802
Dimethyl ether (DME) offers excellent benefits as an alternative fuel in that it can be used at high efficiency and with low emissions, is readily stored and transported, provides high well-to-wheel efficiency and is safe and reliable. It can be derived from natural gas, coal, and cellulosic biomass, including “black liquor” from pulp and paper mills, wood, agricultural products, or municipal waste. Thus, DME is an excellent candidate for co-processing of coal and biomass feedstocks to make ultra clean fuels. In this paper, we examine the technology for DME production via a combination of coal and black liquor gasification.