Enhanced Selectivity in Aromatic Chlorinations Through the Use of Improved ZSM-5 Zeolite Catalysts

通过使用改进的 ZSM-5 沸石催化剂提高芳香族氯化的选择性

• 批准号: 9727315
• 负责人: Carl Lund
• 金额: $ 16万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727315&HistoricalAwards=false
• 关键词: Enhanced; Selectivity; Aromatic; Chlorinations; Through

Abstract - Lund - 9727315 Prof. Carl R. F. Lund, of SUNY-Buffalo, will investigate the selective para-chlorination of toluene over ZSM-5 catalyst. This study on zeolite catalysis is relevant in the pharmaceutical, agrochemical, fine chemical, and basic chemical industries. The research will be focused on (a) the mechanism of liquid-phase chlorination by Cl2 and SO2Cl2 at low temperature, (b) the characterization of active sites, (c) the mechanism of deactivation, and (d) the improvement of ZSM-5 activity, selectivity and endurance. The characterization methods will include XRD, ICP-AES, IR, BET adsorption, and NH3 and SO2 adsorption and desorption. Adsorption calorimetry will provide information for the energy terms of a microkinetic model. Procedures for activity recovery --such as oxidation or solvent extraction-- and for activity maintenance --such as cyclic operation-- will be investigated. Two graduate students will be involved in the research; knowledge transfer to undergraduate courses will occur by means of new problems for kinetics and reactor design courses.

摘要-隆德- 9727315 Carl R. F.纽约州立大学布法罗分校的隆德将研究甲苯在ZSM-5催化剂上的选择性对位氯化。沸石催化的研究在医药、农药、精细化工和基础化工等领域具有重要意义。研究的重点是（a）低温下Cl 2和SO 2 Cl 2液相氯化反应的机理，（B）活性中心的表征，（c）失活机理，（d）ZSM-5活性、选择性和耐久性的提高。表征方法包括XRD、ICP-AES、IR、BET吸附、NH3和SO2吸附和解吸。吸附量热法将为微动力学模型的能量项提供信息。 将对活性恢复程序（如氧化或溶剂萃取）和活性维持程序（如循环操作）进行调查。两名研究生将参与研究;通过动力学和反应堆设计课程的新问题，将知识转移到本科课程。