This paper describes product distribution from hydrogenation of model materials as heavy liquid elements by pyrolysis of wood wastes mixture containing adhesive, plastics, and so on. The mixing effects of materials on reaction were also discussed. As a result, product distribution was differed by hydrogen pressure. It was shown C6H6 and C2H6 influenced as middle products which could be converted to CH4. Whole reaction was enhanced by pressure increase. The effects of mixing on increasing in product yield were observed even it was small. It is possible to say exothermic reaction promotes endothermic reaction in a short time.