文档介绍：摘要南开大学硕士学位论文摘要糠醇是一种化工、轻工的重要原料。糠醛加氢制糠醇的生产方法分为液相法和气相法。液相法具有能耗高、污染严重,要求使用高压设备、无法连续操作等缺点,所以气相法代替液相法已是国际上糠醇生产的趋势。目前生产中使用的气相加氢催化剂中含有对人体有害的物质Cr,且催化剂在制各过程及用后废催化剂的处理对环境污染严重,而且,目前国内气相法生产糠醇大部分采用进口催化剂, 价格昂贵,急需用国产催化剂取代。因此,研究、开发无Cr系高效国产糠醛气相加氢制糠醇催化剂具有非常重要的现实意义。本文筛选出超细氧化镁为载体、以铜为活性组分、氧化钴为助剂的方法制备了系列催化剂。在此基础上,系统考察了不同的铜含量、钴含量、制备方法等条件对糠醛气相加氢制糠醇反应的活性及稳定性的影响。选择高空速催速老化法作为适合催化剂稳定性的评价方法。通过稳定性评价实验,确定了催化剂的最佳金属含量、浸渍液浓度、晾干条件及焙烧条件。经过与进口催化剂催速失活实验的比较,结果表明,。对糠醛气相加氢制糠醇反应的催化剂进行了反应工艺条件的实验,确定了最佳反应温度、HJ醛摩尔比和反应空速。通过程序升温还原和光电子能谱法研究了新型铜镁系催化剂的还原性、金属 Cu含量及助剂co对催化剂稳定性的影响。通过上述研究工作,设计、研究了一种以超细氧化镁为载体、以铜为活性组分、以氧化钴为助剂的新型糠醛气相加氢制糠醇催化剂,为催化剂国产化提供了依据。关键词:糠醛;气相:加氢:糠醇;催化裁;表征 ABSTRACT Furfuryl alcohol important material the chemical engineering and industry-There are two ways ofproducing furfuryl alcohol through hydrogenation of rufforal,gas phase hydrogenation andliquidphase liquid hydrogenation,high temperature and pressure玳required。and reaction cannot goalong ,it current gas。phase hydrogenation replace liquid-phase hydrogenation ,the catalyst used a Cu-Cr greatest drawback of aCu—Cr catalyst hightoxicity,which causes severe environmental restrictionsprevent used chromite catalysts from being deposited; theyprovide∞incentive fordeveloping new rapi'aceablecopper thesis,ultrafine MgO Was taken as support,Cu∞ponent and CoO as examined on thedependence of activity and on differentCucontent,concentration ofdipping solutionandthemethod thebasis ofexperiments,we prepared a ofCuMg basecatalysts withhigh conversion of and high selectivity choosing the evaluating method,high gas velocity deactivation method Was proved be effectivemethod parison the of the ofhydrogenation offurfuraI,we confwmed thebestmeal content,dipping concentration and themethod withtheimported Cu-Cr catalyst by thed饿tctivationmethod,the ofU-CMl3.