HYDROGEN: 500T/D from Refinery Off-Gas - gives a brief account of various sources of hydrogen and a detailed account of its production from petroleum refinery off-gas (flue gas). Fuels, especially alternate fuels (PG, LPG, NG, LNG, SNG, H2, CH2, LH2, etc) are life line of today's economy and so this book can be considered as a marvel to science and technology. Major topic of discussion in this book is Steam methane reforming (SMR) which is one of the most promising processes for hydrogen production. Several studies have demonstrated its advantages from the economic viewpoint. It is a nice extra stuff for M.E.(Cryogenics) and M.E.(Chemical) students.