Abstract: Using hydrogenated coal-based naphtha as the feedstock and semi-regenerative reforming catalysts, the effects of reaction temperature, pressure, and space velocity on the liquid yield and composition of the product oil were investigated. The results showed that as the reaction temperature increased, the liquid yield of the reformed oil decreased, while the aromatic content increased. With pressure increasing, the liquid yield of the reformed oil decreased, and the aromatic content also decreased. Space velocity had a relatively minor impact on both the liquid yield and aromatic content of the reformed oil. Under optimized conditions, the conversion rate of naphthenes reached as high as 98.95%. The reformed oil mainly consisted of aromatics, iso-paraffins, and n-paraffins, with an aromatic content of 84.87% and an aromatic yield of 71.79%. Hydrogenated coal-based naphtha is a high-quality feedstock for the production of aromatics.

Key words: coal-based naphtha, semi-regenerative catalytic reforming, cycloparaffins, aromatics