文献类型：期刊文献

英文题名：Single-pot upgrading of run-of-mine coal and rice straw via Taguchi-optimized hydrothermal treatment: Fuel properties and synergistic effects

作者：Fakudze, Sandile[1,2] Wei, Yingyuan[1] Shang, Qianqian[4] Ma, Ru[1] Li, Yueh-Heng[3] Chen, Jianqiang[1] Zhou, Peiguo[1] Han, Jiangang[2] Liu, Chengguo[4]

第一作者：Fakudze, Sandile

通信作者：Chen, JQ[1];Han, JG[2]

机构：[1]Nanjing Forestry Univ, Lab Adv Environm & Energy Mat, Coll Biol & Environm, 159 Longpan Rd, Nanjing 210037, Peoples R China;[2]Nanjing Forestry Univ, Coll Biol & Environm, Dept Environm Sci, 159 Longpan Rd, Nanjing 210037, Peoples R China;[3]Natl Cheng Kung Univ, Dept Aeronaut & Astronaut, Tainan 70101, Taiwan;[4]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, 16 Suojin Wucun, Nanjing 210042, Peoples R China

年份：2021

卷号：236

外文期刊名：ENERGY

收录：;EI(收录号：20213010684903);Scopus(收录号：2-s2.0-85110510703);WOS:【SCI-EXPANDED(收录号:WOS:000703447700015)】；

基金：This work was supported by the National Natural Science Foundation of China (31770615, 31822009), Fundamental Research Funds of CAF (CAFYBB2020QA005), Postgraduate Research &Practice Innovation Program of Jiangsu Province, Qing Lan Project of Jiangsu Province and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

语种：英文

外文关键词：Co-hydrothermal carbonization; Run-of-mine coal; Rice straw; Taguchi approach; Hydrochar

摘要：Blended fuels of run-of-mine (ROM) coal and untreated rice straw (RS) have not yet been used for fuel applications due to their poor fuel performance and the release of pollutants during combustion. Combining co-hydrothermal carbonization (co-HTC) with oxidative acid/alkaline solvents could be useful as a single-pot approach for effectively upgrading ROM coal/RS blended fuels. However, the determination of optimal co-HTC conditions is critical to achieve maximal performance of ROM coal/RS hydrochars. In this study, the Taguchi method was used to investigate optimal co-HTC conditions for the production of hydrochars with desired fuel properties. Characterization of produced hydrochars was performed by elemental analysis, proximate analysis, Fourier transform infrared spectroscopy, field emission scanning electron microscopy and thermogravimetric analysis. Based on calculations of S/N ratios, hydrochar with the best combustibility was produced using the lowest reaction temperature (180 degrees C) and residence time (4 h), hence minimizing energy consumption. Hydrochars produced under the optimal conditions for the best fuel ratio (FR) and proximate analysis (PA) indices had superior high heating values (HHVs) of 29.4 and 29.0 MJ kg(-1), respectively. In addition, synergistic effects from the optimal conditions resulted in lower contents of sulfur and post-combustion ash of the hydrochars. (C) 2021 Published by Elsevier Ltd.