MCM-48 supported tungstophosphoric acid: An efficient catalyst for the esterification of long-chain fatty acids and alcohols in supercritical carbon dioxide
MCM-48 supported tungstophosphoric acid: An efficient catalyst for the esterification of long-chain fatty acids and alcohols in supercritical carbon dioxide
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DOI：
10.1021/ie071314z
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发表时间：
2008-04-16
影响因子：
4.2
通讯作者：
Sugi, Yoshihiro
中科院分区：
文献类型：
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作者：
Sakthivel, Ayyamperumal;Komura, Kenichi;Sugi, Yoshihiro
钨磷酸（HPW）和mcm -48负载的HPW催化剂是在超临界CO(2)介质中低温（100℃）和短反应时间（6 h）下催化长链脂肪酸和醇类酯化的潜在催化剂。HPW在sc-CO(2)介质中的高性能是由于在该条件下催化的反应物和产物的有效传质。在sc-CO(2)介质中酯化反应中，随着酸和醇链长的增加，酯的产率提高。mcm -48负载的HPW催化剂在多次循环实验后仍具有活性。
Tungstophosphoric acid (HPW) and MCM-48-supported HPW catalysts are potential catalysts for the esterification of long-chain fatty acids and alcohols in supercritical CO(2) medium even at low temperature (100 degrees C) and a short reaction period (6 h). The high performances of HPW in sc-CO(2) medium are due to the effective mass transfer of reactants and products for the catalysis under the conditions. The yields of esters were enhanced with the increase in the chain length of acids and alcohols in the esterification in sc-CO(2) medium. The MCM-48-supported HPW catalysts were active even after several recycle experiments.