ABSTRACT

In Chapters 2 through 4, we examined the merits of co-combustion, co-gasication, co-liquefaction, and co-pyrolysis as the techniques to improve the performances of single component thermochemical transformation processes. The chapters showed that for each thermochemical process, while many mixture combinations are possible, the most multifuel systems examined in recent years are some combination of coal, heavy oil, oil shale, biomass, waste, and water. Water acts as a reactant or catalyst in many high-temperature and high-pressure operations. For co-liquefaction, oil (both conventional and unconventional) also plays an important role as a part of multifuel systems.