| 脉冲化学吸附法研究苯和甲苯在Cr_2O_3/Al_2O_3催化剂上的吸附 |
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| 引用本文： | 王士文 秦永宁. 脉冲化学吸附法研究苯和甲苯在Cr_2O_3/Al_2O_3催化剂上的吸附[J]. 精细石油化工, 1992, 0(3): 53-56 |
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| 作者姓名： | 王士文 秦永宁 |
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| 作者单位： | 天津大学化工系，天津大学化工系，天津大学化工系 |
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| 摘 要： | XRD和脉冲化学吸附法测定苯和甲苯在Cr_2O_3/Al_2O_3催化剂的化学数据表明,随着催化剂中Cr_2O_3含量的增加,Cr_2O_3在Al_2O_3表面上的晶粒度逐渐变大,苯和甲苯在催化剂上的吸附强度相对也逐渐减弱,而吸附中心的数目呈上升趋势。该法在催化剂的研制和开发工作中可用于比较氧化物催化剂对反应物或产物的相对吸附强度和吸附中心数目。
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| 关 键 词： | Cr_2O_3/Al_2O_3催化剂 脉冲化学吸附 苯和甲苯 |
STUDY ON CHEMISORPTION OF BENZENE AND TOLUENE ON Cr_2O_3/Al_2O_3 CATALYST BY PULSE-METHOD |
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| Wang Shiwen et al.. STUDY ON CHEMISORPTION OF BENZENE AND TOLUENE ON Cr_2O_3/Al_2O_3 CATALYST BY PULSE-METHOD[J]. Speciality Petrochemicals, 1992, 0(3): 53-56 |
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| Authors: | Wang Shiwen et al. |
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| Abstract: | The XRD of Cr_2O_3/Al_2O_3 catalyst and the chemisorption measurement of benzene and toluene on the same Catalyst by means of pulse method was studied. The results showed that as the Cr_2O_3 content in Catalyst increases, the grain size of Cr_2O_3 on the surface of Al_2O_3 also increases, and the adsorption intensity of benzene and toluene on Catalyst decreases, but the numbersof adsorption center increases gradually. This method can be used for comparison of adorption intensity and the numbers of adsorption center of reacting substances, and product beween oxide catalysts. |
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| Keywords: | Cr_2O_3/Al_2O_3 Catalyst Pulse Chemisorption Benzene and Toluene |
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