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-LUND-9727315 SUNY-BUFFALO的Carl R. F. Lund教授将研究甲苯在ZSM-5催化剂上的选择性二氯化。这项有关沸石催化的研究与药物，农业化学，精细化学和基本化学工业有关。该研究将集中在（a）在低温下CL2和SO2CL2液相氯化的机理，（b）活性位点的表征，（c）失活的机制，以及（d）ZSM-5活性，选择性和耐力的改善。表征方法将包括XRD，ICP-AES，IR，BET吸附以及NH3以及SO2吸附和解吸。吸附量热法将为微动力模型的能量项提供信息。 将研究活动恢复活动的程序 - 例如氧化或溶剂提取 - 以及活性维持（例如循环操作）。两名研究生将参与研究；知识转移到本科课程将通过动力学和反应堆设计课程的新问题进行。