ABSTRACT

In less developed areas of the world, the major historical use of low-rank coals has been as fuel for local consumption. The chapter discusses the techniques applicable in these areas that would permit the extension of the use of such coals as technologic and industrial development progresses. Since prehistoric times, metallurgical operations have used charcoal or anthracite as a source of heat and as a chemical reducing agent. These fuels are too costly or do not possess the proper physical or chemical properties for use in modern, large-scale metallurgical operations. Sources of adequate fuel for domestic heating and cooking are becoming increasingly important problems in many of the less developed areas of the world. There are two general areas of chemical utilization of the coal that might be considered; namely, synthetic liquid fuel and fertilizer production. Storage is a very important factor in the utilization of low-rank (high-moisture) coals.