抄録
Town gases in Japan, in general, have such a composition (%) as follows: CO 7∼12, CH4 16∼20, CmHn 2∼3, H2 30∼36, CO2 2∼6, H2O 0.5∼2, N2 28∼31. Of these components, the oxydizing ones, CO2 and H2O, are severely obstructive to the carburizing activity of CO, CH4 or CmHn. In order to minimize the obstruction, it has been usual to employ the method of reducing them with charcoal. In our investigation, it was found that the reducing power of charcoal is promoted by adding carbonates of alkaline or alkaline-earth metals, especially BaCO3. This is also recommended from the stand point of economics. Applying these results, we succeededin realizing carburization of gas produced in many kinds of steel works.
