A novel non metallocene supported catalyst,CpTi(dbm) Cl 2/MgCl 2 was synthesized in situ via reaction between CpTi(dbm)Cl 2 an d BuMgCl in heptane.The surface area,pore volume and crystal structure of the su pported catalyst and MgCl 2(in situ) which was obtained by reaction of Mg a nd BuCl were characterized by BET and XRD methods,respectively.The surface area and pore volume of MgCl 2(in situ) are higher than those of normal MgCl 2,and the s urface area and pore volume of the supported catalyst are also high.The crystal structure of the supported catalyst is amorphous,which is similar to that of MgC l 2(in situ).Ethylene polymerization with MAO or AlR 3 was investigated,w hich indicates that the activity does not decrease while AlR 3 was used as co catalyst instead of MAO,so MAO can be absent in both the catalyst preparation an d et hylene polymerization processes.The catalytic activity can be as high as 3 06× 10\+6gPE/molTi·h with triisobutyl aluminium(Ti BA) as co\|catalyst when polymerization tem perature is 80℃,and Al/Ti molar ratio is 200.
目前,我国油田大部分泵房由于设备功率较大,导致运行时噪声较大（多在85~95 d B（A）之间）。《中华人民共和国环境噪声污染防治法》规定：在城市范围内向周围生活环境排放工业噪声的,应当符合国家规定的《工业企业厂界环境噪声排放标准（GB 12348—2008）》;产生环境噪声污染的工业企业,应当采取有效措施,减轻噪声对周围生活环境的影响。中国石化胜利油田滨南采油厂通过采用吸声吊顶、吸声墙面、隔声门窗、移动式隔声屏、防爆轴流风机及配套装置、进排风消声器、数显智能温控装置等,使泵房噪声值由平均72.3 d B（A）降低到54.3d B（A）,达到了国家规定的排放标准。项目的实施有利于站内职工的身心健康,同时减少了泵房对周围环境的影响。
