SHI Yan1a， b， WANG Xuyun1a， b， LI Fang2， ZHONG Weicheng1a， b， GUO Qingjie1a， b
（1. a. College of Chemical Engineering； b. Key Laboratory of Clean Chemical Process， Qingdao University of Science and Technology， Qingdao 266042； 2. School of Chemistry and Chemical Engineering， University of Jinan， Jinan 250022， China）
Abstract：The pyrolysis characteristics of chlorella vulgaris powders were investigated by thermogravimetry technology. Using HZSM-5 zeolite and HY zeolite as catalysts, a comparison on chemical composition of bio-oil from chlorella vulgaris powders by direct and catalytic pyrolysis approaches was presented. The influence of the two kinds of catalysts on catalytic pyrolysis was explored. The results show that the pyrolysis temperature of chlorella vulgaris powders ranges from 160 to 600 ℃. The contents of hexadecanoic acid and nitrogenous compounds are greatly decreased by catalytic pyrolysis of chlorella vulgaris powders with HZSM-5 zeolite. The amount of hydrocarbons is increased, including plentiful aromatic hydrocarbons such as toluene and xylenes.The content of hexadecanoic acid is reduced by catalytic pyrolysis of chlorella vulgaris powders with HY zeolite, but the content of nitrogenous compounds is greatly increased.The bio-oil contains abundant polycyclic aromatic hydrocarbon, especially naphthalene. HZSM-5 zeolite is highly active in deoxygenation and aromatization. Due to the poor shape-selectivity of HY zeolite, the contents of polycyclic aromatic hydrocarbon and nitrogenous compounds are increased.
Keywords：pyrolysis; bio-oil; chlorella vulgaris; molecular sieve
文章编号：1008-5548（2013）04-0032-05
DOI：10.3969/j.issn.1008-5548.2013.04.009
收稿日期：2013-01-19，修回日期：2013-02-02，在线出版时间：2013-08-25。
基金项目： 海洋可再生能源专项资金项目， 编号：GHME2001SW02-20876079；山东省科技攻关项目，编号：2009GG10007001。
第一作者简介： 时艳(1987—)，女，硕士研究生，研究方向为可再生能源。E-mail： shiyan_06@163.com。
通信作者简介：郭庆杰(1967—)，男，博士，教授，山东省泰山学者特聘教授，研究方向为新能源与可再生能源、化学链燃烧技术和流态化工程。E-mail：qj_guo@yahoo.com。
