《Table 3 Effect of the glucose concentration on HMF yield》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Direct Conversion of Glucose to 5-Hydroxymethylfurfural over Zirconium Phosphate Catalyst in a Biphasic System》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

Reaction conditions:0.1 g of Zr PO catalyst，160°C，3 h，6 m L of reaction solution，THF:H2O volume ratio of 5:1.

A high substrate concentration is usually preferred to improve the efficiency of the process and make the process much more constructive and economical.So different initial concentrations of glucose were studied，with the results shown in Table 3.It can be seen that the glucose conversion and HMF yield were partly affected by the initial concentration of glucose.When the initial glucose concentration was 10%and 13%，the yield of HMF was 56.8%and 52.1%，respectively.Moreover，when the initial concentration of glucose was increased to26%，the yield of HMF was still high（43.6%），indicating to the efficiency of the catalyst.The loss of HMF yield at high glucose concentration was most likely caused by self-polymerization of glucose and cross-polymerization between glucose and HMF[29].Upon taking the production cost and HMF yield into consideration，an initial glucose concentration of 10%was considered to be suitable for the production of HMF from glucose.