Abstract：In order to make full use of C10 aromatic (C10A) resources, the effects of naphthalene content in feedstock on the disproportionation and transalkylation of toluene with C9 and C10 aromatics over non-noble metal modified catalyst were investigated. The results indicated that with the increase of naphthalene content in feedstock, the catalytic activity of disproportionation and transalkylation of toluene with C9 and C10 aromatics transalkylation decreased, and the reaction temperature should be raised to improve catalyst activity. After withdrawing naphthalene, the transalkylation of C9 and C10 aromatics was recovered, while toluene disproportionation was not. Naphthalene derivatives had an equilibrium composition in the reaction system. When there was no naphthalene in the feedstock, naphthalene derivatives were produced as the by-products of the disproportionation and transalkylation of toluene with C9 and C10 aromatics. When naphthalene content was lower than the equilibrium value, naphthalene was mainly converted to alkylnaphthalenes through transalkylation. When naphthalene content was higher than the equilibrium value, while naphthalene was mainly converted to alkylnaphthalene and light aromatics through both transalkylation and hydrocracking.
Guo Hongli,Hou Min,Kong Dejin. Effects of Naphthalene on Toluene and Heavy Aromatics Disproportionation and Transalkylation over Non-noble Metal Modified Catalyst[J]. 化学反应工程与工艺, 2014, 30(4): 329-335.
