The 68 papers in this book mostly cover topics related to problems in the field of unconventional energy resources (Fischer-Tropsch syntheses, upgrading of heavy oils, use of ZSM-5 zeolites, photocatalysis). As these problems are approached from the catalytic chemist's and catalytic engineer's viewpoints, some of the fundamental disciplines of catalysis of current research interest are also dealt with (surface analysis, transient reactors and phenomena).