Thermal characteristics and kinetics of refining and chemicals wastewater, lignite and their blends during combustion
Thermal characteristics and kinetics of refining and chemicals wastewater, lignite and their blends during combustion
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炼油化工废水、褐煤及其混合物燃烧过程的热特性和动力学
DOI：
10.1016/j.enconman.2015.05.016
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发表时间：
2015-08-01
影响因子：
10.4
通讯作者：
Li, Aimin
中科院分区：
文献类型：
--
作者：
Chen, Jianbiao;Mu, Lin;Li, Aimin
采用热重分析（TGA）方法研究了炼油化工废水固体（RS）与霍林河褐煤（HL）的共燃特性。在不同的RS与HL的比例的混合物的燃烧行为进行了比较，与那些单独的样品。共燃实验表明，随着RS含量的增加，共混物的燃烧性能得到改善。共燃过程中RS和HL的相互作用可分为4个阶段，在120 ℃以下（PH 1）和700 ℃以上（PH 4）没有相互作用，在120-700 ℃（PH 2和PH 3）温度范围内有抑制作用。SEM和XRD结果表明，随着RS含量的增加，燃烧后残渣的烧结和熔融程度加剧。采用Kissinger-Akahira-Sunose（KAS）和Flynn-Wall-Ozawa（FWD）等转化率方法对燃烧过程进行了动力学分析。结果表明，RS的活化能高于HL，在75 HL/25 RS时活化能最小。皇冠版权所有（C）2015由爱思唯尔有限公司出版。保留所有权利。
Co-combustion characteristics of refining and chemicals wastewater solid (RS) and Huolinhe lignite (HL) were studied through thermogravimetric analysis (TGA). The combustion behaviors of the blends at various RS to HL ratios were compared with those of the individual samples. Co-combustion experiments showed that the combustion performance of the blends would be improved with the percentage of RS rising. The interactions between RS and HL during the co-combustion could be divided into four phases, and there were no interactions below 120 degrees C (PH 1) and beyond 700 degrees C (PH 4), inhibitive effects at the temperature range of 120-700 degrees C (PH 2 and PH 3). The results of SEM and XRD indicated that the sintering and fusion degree of residues after combustion became more severe with the percentage of RS increasing. The iso-conversional methods, Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWD), were used for the kinetic analysis of the combustion process. The results showed that the activation energy of RS was higher than that of HL, and the minimum value was obtained at 75HL/25RS. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved.