摘要
采用T-80、OP-10、PEG-400 3种不同的表面分散剂处理Ru/AC氨合成催化剂的RuCl3浸渍液,研究了表面分散剂对钌催化剂活性、分散度及耐热性的影响.结果表明,用这3种表面分散剂处理RuCl3浸渍液都能有效提高钌催化剂的钌金属分散度、催化活性和耐热性.当表面分散剂的用量均为1‰时,上述3种表面分散剂对催化剂的钌分散度和催化活性的影响顺序为T-80>PEG-400>OP-10.用T-80表面分散剂处理RuCl3浸渍液时,T-80最佳用量为1‰,用量过高或过低都不利于钌金属的分散和催化剂催化活性的提高.
RuCl3 aqueous solution was treated by adding the three kinds of different surface dispersants T - 80. OP - 10 and PEG - 400 at the preparing of Ru/AC catalyst for ammonia synthesis. The influence of the dispersants on the activity, dispersion and heat resistance of the ruthenium catalyst was studied. The results show that treating RuCl3 aqueous solution with the three kinds of surface dispersants can improve the ruthenium dispersion, activity and heat resistance of the ruthenium catalyst effectively. If the dosage of the surface dispersants is 1‰, the influence order of the three kinds of surface dispersants on the ruthenium dispersion and activity of the ruthenium catalyst is T - 80 〉 PEG - 400 〉 OP - 10. When using the T- 80 treats the RuCl3 solution, the optimum dosage of T - 80 is 1%o. The too high or too low dosage is unfavorable to improve the ruthenium dispersion and activity of the catalyst.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第1期133-136,共4页
Journal of Fuzhou University(Natural Science Edition)
基金
国家科技攻关计划资助项目(2001BA322C)
福建省重大科技资助项目(2000F002)
关键词
钌催化剂
氨合成
表面分散剂
分散度
耐热
ruthenium catalyst
ammonia synthesis
surface dispersant
dispersion
heat resistance
