Gradient Technology has designed, fabricated, integrated, and operated a variety of pilot-scale systems for the investigation of torrefaction of various lignocellulosic biomass species including alfalfa, cellulose, corn cobs and stover, miscanthus, lignin, prairie grass, and straw. Wood species investigated have included balsam, black ash, tamarac and mixed tree tops. Operation of these processes is supported by our laboratory for the analysis of reaction products and final torriefied materials.
Gradient Technology also utilizes an electrically-heated sandbath with the ability to investigate up to four fixed bed reactors simultaneously that experience identical heating profiles. As a result, multiple biomass species can be investigated accurately and efficiently.
Lastly, Gradient Technology has the capability of investigating the grindability of biomass both before and after torrefaction. Our Thomas Model 4 Wiley mill has been instrumented so the grinding energy can be accurately quantified.