期刊
GREEN CHEMISTRY
卷 14, 期 12, 页码 3441-3450出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2gc36324k
关键词
-
资金
- National Science Foundation for Distinguished Young Scholars of China [21225626]
- National Key Technology RD Program [2012BAD32B08]
- National Basic Research Program [2011CB710806]
- National High Technology R&D Program of China [2011AA021207]
- National Natural Science Foundation of China [20906051]
- PHD Programs Foundation of Ministry of Education of China [20113221110010]
The dehydration of bio-based 2,3-butanediol provides an alternative green way to produce butanone, which is mainly produced through the dehydrogenation of butanol in industry. In this research, the effect of the framework Si/Al ratio on 2,3-butanediol dehydration over HZSM-5 zeolites (Si/Al = 38-360) was investigated. HZSM-5(360) was further modified with boric acid, and the influence of the loading amount of boric acid on the dehydration performance was studied. The results showed that high Si/Al ratio was beneficial to low-temperature activation of 2,3-butanediol and the methyl migration to 2-methyl propanal. 1.0% B/HZSM-5(360) not only showed best performance at 180 degrees C but also kept stable activities between 180-300 degrees C with a high LHSV 2.4 h(-1). According to the characterization results, excellent performance over HZSM-5(360) was due to the highest amount of strong acidic sites (1.1674 mmol g(-1)) attributed to H-bonded hydroxyl groups, normally silanols. Coexistence of more effective extraframework B-OH species and retained silanols were responsible for the promotion of catalytic performance over 1.0% B/HZSM-5(360).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据