Improved Stability and Shape Selectivity of 2,6-Dimethylnaphthalene by Methylation of Naphthalene with Methanol on Modified Zeolites

• 作者: Junpeng Feng Xuekuan Li Ye Zhang Zhanjun Lyu
• 来源期刊: 催化剂现代研究(英文)
• 学科: 化学
• 关键词: NAPHTHALENE METHYLATION 2 6-Dimethylnaphthalene Shape-Selective STABILITY PDO Modified Zeolites
• 年，卷（期）: 2014,（2）
• 页码范围: 19-25
• 页数: 7页
• 分类号: O6

摘要

2,6-Dimethylnaphthalene (2,6-DMN) is a key intermediate for polyethylene naphthalate synthesis. The selective synthesis of 2,6-DMN from naphthalene and methanol was carried out over different zeolites (HZSM-5, Hβ, HUSY and SAPO-11) modified by 0.1wt% PdO under atmospheric pressure. Among the adopted zeolites, SAPO-11 exhibits exceptional shape-selectivity and stability to synthesize 2,6-dimethylnaphthalene from methylation of naphthalene, due to the special pore structure of SAPO-11 which inosculated better with 2,6-dimethylnaphthalene than with 2,7-dimethylnaphthalene.