Behavior of hydrogen at coal liquefaction of NEDOL process

Publisher Summary This chapter presents the experiment, result, and discussion on the coal liquefaction tests that were conducted on Wandoan, Illinois No.6, Wyoming and Tanito Harum coal at the NEDOL Process Supporting Unit (PSU). The behavior of hydrogen and dehydrogeneity at coal liquefaction are investigated. Furthermore, the effect of fa (fraction of aromatic) of recycle solvent on the behavior of hydrogen is also studied. It concludes that the hydrogen supplied for the coal liquefaction is easily consumed to the gas in high N. S. content coal such as Illinois No. 6 coal and the degree of deheterogeneity is high. The hydrogen is consumed to the water in high oxygen content coal such as Wyoming and Tanito Harum coal. The hydrogen consumption at coal liquefaction depends on the properties of coal under the various liquefaction conditions.