Energy absorption characteristics and kinetics of carbonaceous solid waste gasification with copper slag as heat carrier

被引：7

作者：

Zuo, Zongliang ^{[1
,2
,3
]}

Feng, Yan ^{[1
]}

Dong, Xinjiang ^{[1
]}

Luo, Siyi ^{[1
]}

Ren, Dongdong ^{[1
]}

Zhang, Weiwei ^{[1
]}

Lin, Huan ^{[1
]}

Lin, Xiaoqing ^{[2
]}

机构：

[1] Qingdao Univ Technol, Sch Environm & Municipal Engn, 777 Jialingjiang East Rd, Qingdao 266520, Shandong, Peoples R China

[2] Zhejiang Univ, State Key Lab Clean Energy Utilizat, 38 Zheda Rd, Hangzhou 310013, Peoples R China

[3] Shanghai Jiao Tong Univ, Shanghai Engn Res Ctr Solid Waste Treatment & Res, Shanghai 200240, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 46期

关键词：

Copper slag; Gasification; Energy recovery; Kinetics; HYDROGEN-RICH GAS; BIOMASS GASIFICATION; PYROLYSIS; MECHANISM; PARAMETERS; BIOCHAR;

D O I：

10.1016/j.ijhydene.2022.04.116

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High energy consumption is the bottleneck for gasification technology of carbonaceous waste. Exactly, copper slag has such cheap and huge energy that can be used. Copper slag waste heat can provide energy and metallic oxide in copper slag has catalytic effect on carbonaceous solid waste gasification reaction. The gasification energy absorption characteristics and kinetics of typical solid waste, sludge, enteromorpha and lignite with air as oxidation agent has been studied using copper slag as heat carrier. Gasification reaction of waste is scored as multi-stage reactions. For sludge and enteromorpha gasification reactions, there are two and three reaction stages respectively. Gasification reaction rate becomes unstable when copper slag added. The addition of copper slag has little effect on the peak value and peak temperature. Pyrolysis reaction rate of heat absorption is controlled by material diffusion. At medium and high temperature, the limitation of gasification endothermic reaction of sludge and enteromorpha is chemical reaction rate. When copper slag added, the total energy absorption of lignite, sludge and enteromorpha are 11285.8 mw/mg, 8994.2 mw/mg and 9461.7 mw/mg respectively. Copper slag has catalytic decomposition effect on the gasification reaction at high and medium temperature, and improves the heat exchange rate. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：20076 / 20086

页数：11