Abstract: Disclosed herein is a method for the purification of a saccharide, characterized in that, water and a feedstock solution containing at least L-arabinose and oligosaccharide where L-arabinose and/or xylose are/is the constituting component(s) obtained by hydrolysis of plant tissues are supplied to a chromatographic apparatus of a simulated moving-bed system where a solution can be circulated in one direction in an apparatus equipped with a packed bed in which an adsorbent is filled and the solution in the packed bed is moved in one direction whereupon at least L-arabinose and oligosaccharide are separated each other and concentration distribution of each of them is formed in the packed bed, then at least a concentrated L-arabinose solution and a concentrated oligosaccharide solution are extracted from the packed bed and, in addition, an inlet for the feedstock solution, an inlet for water, an outlet for the concentrated L-arabinose solution and an outlet for the concentrated oligosaccharide solution are succes

Abstract: A process for producing a liquefied coal oil by a two step hydrogenation reaction of coal, which comprises subjecting coal to a first hydrogenation and subjecting at least a part of the reaction product of the first hydrogenation to a second hydrogenation, wherein the second hydrogenation is conducted in the presence of an alkali metal compound and/or an alkaline earth metal compound and a catalyst carrying a metal of Group VI-A and a metal of Group VIII of the Periodic Table.