The performance of TAS-15 dearsenie catalyst for removing arsenide from FCC gasoline was investigated. The results showed that TAS-15 catalyst exhibited high activity of arsenic removal from FCC gasoline;arsenic content of purified gasoline in outlet was =5 x 10-9 under the condition as follows:reaction pressure 0.6 MPa, temperature (20-50) ℃, space velocity (1 -3) h-1,and the catalyst running time over 1 600 h.%以正硅酸乙酯为硅源,采用溶胶-凝胶法制备草酸二甲酯加氢合成乙二醇的Cu/SiO2催化剂,并考察老化时间对Cu/SiO2催化剂活性与结构的影响.用N2物理吸附、XRD、FT - IR和H2-TPR等技术对Cu/SiO2催化剂性能与结构进行表征.结果表明,溶胶-凝胶法制备的Cu/SiO2催化剂中有层状硅酸铜形成,铜物种均匀分布在载体SiO2上,易被还原,活性较高.合理的老化时间可抑制SiO2对催化剂表面活性位的包覆,提高活性.在200℃、2.0 MPa、氢酯物质的量比60∶1、草酸二甲酯空速1.0 h-1和老化时间1.5h的条件下,草酸二甲酯转化率达99.51％,乙二醇选择性93.60％.
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