3.Prospects of the petroleum and petrochemical market in 2008 In terms of medium and long-term fac-tors affecting the m......

以Al2O3为载体，Pd为活性组分，Ag和Li为助剂，制备碳四馏分选择性加氢脱除丁二烯催化剂，并对催化剂进行XPS、TPR和TPD表征。结果表明，加入......

简介了乙腈抽提装置的技术改造情况。改造后的装置能耗下降，丁二烯成品中的乙烯基乙炔含量可稳定在７×１０＾－６。针对改造后的装置在运行......