文献类型：期刊文献

英文题名：A kinetic study on the effects of alkaline earth and alkali metal compounds for catalytic pyrolysis of microalgae using thermogravimetry

作者：Xu, Qing[1,2];Ma, Xiaoqian[1];Yu, Zhaosheng[1];Cai, Zilin[1]

机构：[1]S China Univ Technol, Sch Elect Power, Guangzhou 510640, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Sch Engn, Zhanjiang City 524025, Peoples R China

年份：2014

卷号：73

期号：1

起止页码：357

外文期刊名：APPLIED THERMAL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000346543400037)、、EI(收录号：20143518111862)、Scopus(收录号：2-s2.0-85058720797)、WOS

基金：This work was supported by the National Basic Research Program of China (973 Program): 2011CB201500, 2013CB228100; Guangdong Key Laboratory Of Clean Energy Technology (2008A060301002); General Administration Of Quality Supervision, Inspection Of Public Projects (No. 20140159); the National Natural Science Foundation Of Guangdong Province (10351007006000000); Guangzhou Major Scientific Research Projects (2008A1-D0011); Key Laboratory of New Lithium-ion Battery and Mesoporous Materials (No. 20110214) and the Fundamental Research Funds for the Central Universities, SCUT (No. x2dlD2105280).

语种：英文

外文关键词：Catalytic pyrolysis; Microalgae; Alkali; Alkaline earth metals; Thermogravimetric analysis; Kinetic

外文摘要：In this paper, thermogravimetric (TG) analysis and kinetic modeling are applied to study the effects of alkaline earth and alkali metal compounds on catalytic thermal decomposition of microalgae. When alkaline earth and alkali metal compounds are added, the initial thermal degradation temperatures increased by about 3.2-10.2 K, and the final temperatures reduced by about 3.5-9.4 K. The results show that CaO, MgO, K2CO3, BaCO3 and Na2CO3 may shorten the time of pyrolysis, implying that alkaline earth and alkali metal compounds may promote the process of thermal degradation of organic matters. The first maximum weight loss rate is in the order of Na2CO3 > CaO > K2CO3 > BaCO3 > MgO > no additive. En, (weight means activation energy) varies from 99.60 to 134.05 kJ mol(-1), which implies ignorable overall activation energies (Em) after alkaline earth and alkali metal compounds are added. (C) 2014 Elsevier Ltd. All rights reserved.