18.コークス炉生成タールの熱分解に与えるCOG中のガス成分の影響

抄録

Coke-oven gas (COG) contains about 30wt% of tar. This study aims to convert the tar into light gases. When the tar was pyrolyzed in helium, the coke yield reached more than 70%. Reactions of tar with gaseous components consisting COG played an important role for improving the gas yield. When the tar was decomposed in the presence of CO_2, the CO and H_2 yields increased and the molecular weight of product tar decreased from those in the absence of CO_2. The CH_4 yield increased when H_2 was added.