文献类型：期刊文献

英文题名：Feasibility assessment of recycling waste aluminum dross as a basic catalyst for biomass pyrolysis to produce hydrogen-rich gas

作者：Li, Xueqin[1,2];Chen, Zhuo[3];Liu, Peng[2];Huang, Sheng[1];Wu, Shiyong[1];Lei, Tingzhou[2];Wu, Youqing[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]Changzhou Univ, Inst Urban & Rural Min, Natl Local Joint Engn Res Ctr Biomass Refining & H, Changzhou 213164, Jiangsu, Peoples R China;[3]North China Univ Water Resources & Elect Power, Sch Management & Econ, Zhengzhou 450046, Peoples R China

年份：2023

卷号：48

期号：93

起止页码：36361

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20232614308265);WOS:【SCI-EXPANDED(收录号:WOS:001107369400001)】；

基金：This work was supported by the National Key Research and Development Program of China (Grant Nos. 2022YFB4201901 and 2021YFC2101000) , Natural Science Foundation of China (Grant Nos. 51906021 and 21878096) , Changzhou Sci & Tech Program of China (Grant No. CJ20220246) , Special Scientific Research Project for Civil Aircraft in 2020 -EU China Sustainable Aviation Fuel (Grant No. MJ-2020-D-09) , and Key R & D Projects in Ningxia Hui Autonomous Region of China (Grant No. 2021BEG02001) .

语种：英文

外文关键词：Utilization and recycling of aluminum dross; Catalytic pyrolysis; Waste biomass; Hydrogen-rich gas; Feasibility evaluation

摘要：Waste aluminum dross (AD) was used as a substrate on which active constituents were loaded after different activating treatments. A hydrothermal method was applied to synthesize the carbon-aluminum-based composite catalysts (C-ACC), whose pore structures, surface characteristics, and thermal stability were analyzed with the methods of XRF, SEM, and BET. Then, the feasibility of using recycled aluminum dross to catalyze biomass (bits of poplar wood, BPw) pyrolysis to produce hydrogen-rich gas was thoroughly evaluated. The results showed that aluminum dross exhibited significantly enhanced stability after the activating treatments and obtained a relatively large specific surface area and pore volume, presenting similar pore structure characteristics to aluminum oxides (Al2O3). Aluminum dross can be used as an excellent catalyst carrier. Carbon-aluminum-based composite material has a well-developed pore structure. Its specific surface area, average pore size, and pore volume are 118 m(2)/g, 10.3 nm, and 0.43 cm(3)/g, respectively, and its heat conductivity coefficient is 0.22 W/m center dot K. With a combination of advantages of activated carbon and Al2O3, the properties of iron-loaded carbon-aluminum composite catalysts are superior to those of active constituents and carrier materials. With these catalysts, a relatively high gas yield (43.77%) and a relatively small amount of char deposition (19.79%) have been achieved during the process of catalyzing BPw pyrolysis, with the H-2 yield significantly increased to 64.24mL/g-(biomass). So, it provides a new idea for oriented catalyzation of biomass pyrolysis to produce hydrogen-rich gas. Using aluminum dross as a catalyst carrier or a substitute for some part of the carrier can significantly improve the quality of hydrogen-rich gas. A new method of using aluminum dross to obtain catalysts for producing cheap biomass fuel through a pretreatment process has been put forward.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.