Journal
MOLECULAR CATALYSIS
Volume 498, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mcat.2020.111267
Keywords
gamma-Valerolactone; Butene; Oligomerization; Gasoline fuels; Integrated two-stage processes
Categories
Funding
- National Natural Science Foundation of China [51861145102, 21978225]
- National Key Research and Development Plan of China [2018YFE0125200]
- Guangdong Provincial Science and Technology Project [2019A050510031]
- Science and Technology program of Shenzhen [JCYJ20180302153928437, JCYJ20190808150418994]
- Fundamental Research Fund for the Central Universities [2042019kf0221]
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gamma-Valerolactone (GVL) is one of a promising and versatile platform compounds, derived from renewable biomass, that could be widely used as key raw materials for the production of high value-added chemicals and energy fuels. Here, we report the oriented transformation of GVL into gasoline range hydrocarbons through an integrated two-stage fixed-bed catalytic system. The catalytic upgrading strategy involved the GVL feeds converting to butene isomers mixture and CO2 by ring-opening and decarboxylation without use of external H-2 over SiO2Al2O3 catalyst, coupled with the oligomerization of butene isomers intermediates to gasoline fuels over the nanoHZSM-5 catalyst. This integrated two-stage processes could greatly simplify the products separation, avoid the incompatibility of their reaction conditions, and effectively improve the catalytic stability. The selectivity and yield for target C5-12 gasoline range fuels was high as 82.2 % and 58.7 %, respectively, and no obvious deactivation was observed with time on stream of 50 h.
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