• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in Environmental Technology >Methanol synthesis catalyst manufacturing using the green solid-state method
【24h】

Methanol synthesis catalyst manufacturing using the green solid-state method

机译：使用绿色固态方法制造甲醇合成催化剂

获取原文
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this research study, methanol synthesis catalysts were manufactured with various mole ratios of metal carbonates (zinc, copper and aluminum carbonate) and ammonium hydrogen carbonate via a green solid-state method that employed a ball mill apparatus. Some parameters for the catalyst preparation, such as Al mole percent, Cu/Zn mole ratio, rotations milling speeds and aging time, were optimized to obtain the maximum catalyst activity. The prepared catalysts were compared with the best quality industrial catalyst under the same temperature and pressure condition in a titanium tabular fixed bed reactor. This novel method has many advantages in comparison to the conventional method. The main advantage of the solid-state method is that the methanol synthesis catalyst can be produced without using solvent. Furthermore, this new method reduces operating costs due to the elimination of the filtration and washing steps. Methanol synthesis catalytic activity was maximized at an optimized mole ratio of Cu/Zn of 1.9234 and an Al mole percent of 8 at the maximum grinding speed (450 rpm) during an aging time of 30 min, which showed higher activity (240 gCH3OH/kg cat.h) in comparison with an industrial catalyst sample (218 gCH3OH/kg cat.h). The production of a green catalyst, which requires less water and results in higher catalyst activity, can be widely used for methanol synthesis catalytic applications.
机译：在这项研究中，通过使用球磨机的绿色固态方法，以金属碳酸盐（锌，铜和铝的碳酸铝）和碳酸氢铵的摩尔比制造甲醇合成催化剂。优化了一些催化剂制备参数，例如Al摩尔百分比，Cu / Zn摩尔比，旋转研磨速度和老化时间，以获得最大的催化剂活性。在相同的温度和压力条件下，在钛板固定床反应器中将制得的催化剂与最优质的工业催化剂进行了比较。与常规方法相比，该新颖方法具有许多优点。固态方法的主要优点是无需使用溶剂即可生产甲醇合成催化剂。此外，由于省去了过滤和洗涤步骤，这种新方法降低了运营成本。在30分钟的老化时间内，在最大研磨速度（450 rpm）下，Cu / Zn的最佳摩尔比为1.9234，Al的摩尔百分比为8时，甲醇合成的催化活性达到最大，显示出更高的活性（240 gCH3OH / kg cat.h）与工业催化剂样品（218 gCH3OH / kg cat.h）的比较。绿色催化剂的生产需要更少的水并导致更高的催化剂活性，可广泛用于甲醇合成催化应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号