Scholarlink

<p>This study focused on the synthesis and characterization of tin-exchanged heteropolytungstate (Sn<sub><i>x</i></sub>TPA) catalysts, which were tested for their efficacy in acetylation of glycerol with acetic acid. The Sn<sub><i>x</i></sub>TPA catalysts showed significantly enhanced activity compared to the original TPA catalyst, especially for glycerol acetin synthesis. The catalytic performance was strongly correlated with the degree of tin exchange with heteropolytungstate protons. Partially exchanged Sn<sub>1</sub>TPA catalyst showed the highest activity owing to variations in acidity. Surface and structural properties of Sn<sub><i>x</i></sub>TPA catalysts were found to influence their catalytic activities.</p> Graphical Abstract <p>Acetylation of glycerol to biofuel additives is achieved using heteropoly tungstate exchange on tin solid catalyst. The role of catalysts and both Bronsted and Lewis acidity on glycerol acetylation was demonstrated.</p> <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis of glycerol acetins as fuel additives: Acetylation of glycerol with SnTPA catalyst

  • 期刊论文

  • 发表日期：

    2025年3月19日

查看全文
  • K Jagadeeswaraiah,
  • M Malyaadri,
  • K Damodar Reddy

摘要

This study focused on the synthesis and characterization of tin-exchanged heteropolytungstate (SnxTPA) catalysts, which were tested for their efficacy in acetylation of glycerol with acetic acid. The SnxTPA catalysts showed significantly enhanced activity compared to the original TPA catalyst, especially for glycerol acetin synthesis. The catalytic performance was strongly correlated with the degree of tin exchange with heteropolytungstate protons. Partially exchanged Sn1TPA catalyst showed the highest activity owing to variations in acidity. Surface and structural properties of SnxTPA catalysts were found to influence their catalytic activities.

Graphical Abstract

Acetylation of glycerol to biofuel additives is achieved using heteropoly tungstate exchange on tin solid catalyst. The role of catalysts and both Bronsted and Lewis acidity on glycerol acetylation was demonstrated.