Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
Bioresour Technol. 2012 Jun;114:740-4. doi: 10.1016/j.biortech.2012.03.057. Epub 2012 Mar 28.
In the present study, γ-valerolactone (GVL) is firstly reported to be converted into aromatic hydrocarbons through catalytic pyrolysis. The catalysts and reaction conditions are both critical in maximizing the hydrocarbon selectivity. Four zeolites, i.e. MCM-41, β-zeolite, ZSM-5 and HZSM-5 were tested in this work, among which HZSM-5 (Si/Al=25) was found to be the most effective catalyst in both reactivity and selectivity. Under the reaction temperature of 500 °C, the highest carbon yield of 56.71% of aromatics was achieved from GVL with HZSM-5 (Si/Al=25) as catalyst. Moreover, the HZSM-5 catalyst was recycled for five times without significant decrease in product selectivity.
在本研究中，γ-戊内酯（GVL）首次被报道通过催化热解转化为芳烃。催化剂和反应条件对于最大化烃选择性都至关重要。在这项工作中测试了四种沸石，即 MCM-41、β-沸石、ZSM-5 和 HZSM-5，其中 HZSM-5（Si/Al=25）被发现是在反应性和选择性方面最有效的催化剂。在反应温度为 500°C 的条件下，以 HZSM-5（Si/Al=25）为催化剂，GVL 的芳烃碳收率最高可达 56.71%。此外，HZSM-5 催化剂在五次循环使用后，产物选择性没有明显下降。
