响应面法优化超临界CO_2条件下溶剂油的氢化  

Optimization of the Hydrogenation of Solvent Oil in Supercritical CO_2 Using Response Surface Methodology

作　　者：王玥[1] 张春艳[1] 刘飞[1] 刘丹怡[1] 于殿宇[1] 

机构地区：[1]东北农业大学食品学院,黑龙江哈尔滨150030

出　　处：《食品科学》2014年第10期29-33,共5页Food Science

基　　金："十二五"国家科技支撑计划项目(2012BAD34B03);黑龙江省应用技术研究与开发计划项目(GC13B207);黑龙江省高校科技成果产业化前期研发培育项目(1252CGZH27)

摘　　要：在超临界CO2状态下,采用镍铝作为催化剂对溶剂油进行氢化,以脱苯率为指标,通过单因素试验和响应面分析对氢化条件进行优化,得到最优氢化条件压力10.2 MPa、温度78℃、时间52 min、搅拌速率200 r/min、催化剂添加量4%,氢化后的溶剂油中苯含量小于100μg/g。将常规氢化和超临界氢化的节能情况进行对比,结果显示:在超临界CO2状态下,以镍铝作为催化剂的氢化更节能。该方法有效的降低了溶剂油中的芳烃含量,拓宽了超临界氢化的应用领域。Solvent oil, encompassing a group of important products from petroleum that are commonly used in the extraction of edible oils, was hydrogenated by nickel-aluminum catalyst in a supercritical CO： reactor, and the reaction conditions were optimized using response surface methodology to maximize the removal efficiency of benzene hydrocarbons. Hydrogenation at 78℃ and 10.2 MPa for 52 min with stirring at 200 r/min using 4% of the catalyst proved optimal. The content of benzene hydrocarbons in the hydrogenated product was below 100μg/g. In addition to effectively removing the benzene hydrocarbons in solvent oil, the supercritical CO2-assisted hydrogenation using nickel-aluminum catalyst was energy saving in comparison with the conventional method, broadening its range of application.

关 键 词：超临界CO2 镍铝催化剂 氢化 节能 

分 类 号：TS224.6[轻工技术与工程—粮食、油脂及植物蛋白工程]