期刊
APPLIED CATALYSIS A-GENERAL
卷 503, 期 -, 页码 1-8出版社
ELSEVIER
DOI: 10.1016/j.apcata.2014.11.005
关键词
Bio-oils; Fuels; Desilication; Y zeolite; Mesopores
资金
- University of Litoral (Santa Fe, Argentina) [501-201101-00546LI]
- CONICET [PIP 1257/09]
- National Agency for Scientific and Technological Promotion [PICT 2010/2123]
Y zeolite was desilicated by means of alkaline treatments (NaOH 0.05, 0.10 and 0.20 M) during 15 min to produce varying mesoporosity over it. Catalysts were made with a SiO2 matrix and a binder. Pine sawdust bio-oil was produced by pyrolysis and immediately upgraded, without intermediate condensation, on a downstream bed of the compound catalysts. The experiments were produced in a fixed bed reactor at 550 degrees C using different catalyst to reactants relationships. The desilicated zeolites were more effective than the parent zeolite to deoxygenate bio-oil and produce more hydrocarbons, with higher selectivity to olefins (more than 35 wt.%) and lower selectivity to aromatics (less than 60 wt.%) in gasoline. The selectivity to C4(-) and gasoline olefins increased if the mesoporosity was higher, and the coke formed was less condensed. These observations were the result of improvements in the diffusion of bulky molecules in bio-oils, such as phenolic ethers, increasing their conversion to hydrocarbons. (C) 2014 Elsevier B.V. All rights reserved.
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