CAJ | 학술논문

以USY为载体制备了一系列不同Cu和MgO负载量的酸碱双功能催化剂Cu-MgO/USY用于甘油氢解制丙二醇反应,并采用X射线粉末衍射、透射电镜、傅里叶红外光谱、NH3程序升温脱附等手段对该催化剂进行了表征.结果表明,负载后的USY载体其Y沸石特征峰保持完整,且MgO的加入提高了Cu在载体表面的分散度.在200oC,3.5 MPa H2下反应10 h以及6%催化剂0.2Cu-MgO/USY (0.2 g Cu与1.0 g MgO负载于1.0 g USY上面)用量的条件下,甘油转化率达到83.6%,1,2-丙二醇及1,3-丙二醇的选择性分别为40%和19.4%.
이USY위재체제비료일계렬불동Cu화MgO부재량적산감쌍공능최화제Cu-MgO/USY용우감유경해제병이순반응,병채용X사선분말연사、투사전경、부리협홍외광보、NH3정서승온탈부등수단대해최화제진행료표정.결과표명,부재후적USY재체기Y비석특정봉보지완정,차MgO적가입제고료Cu재재체표면적분산도.재200oC,3.5 MPa H2하반응10 h이급6%최화제0.2Cu-MgO/USY (0.2 g Cu여1.0 g MgO부재우1.0 g USY상면)용량적조건하,감유전화솔체도83.6%,1,2-병이순급1,3-병이순적선택성분별위40%화19.4%.
A series of acid-base bifunctional catalysts composed of USY with different Cu and MgO loadings were prepared, characterized, and tested for the hydrogenolysis of glycerol. The USY support re-tained the Y zeolite structure, and the introduction of MgO enhanced the dispersion of Cu in the support. At 200 °C, 3.5 MPa H2, 10 h and with a 6%0.2Cu-MgO/USY catalyst, 83.6%conversion of glycerol with 40%selectivity to 1,2-propanediol (1,2-PDO) and 19.4%selectivity to 1,3-propanediol (1,3-PDO) was achieved.