文献类型：期刊文献

英文题名：Upgradation of coconut waste shell to value-added hydrochar via hydrothermal carbonization: Parametric optimization using response surface methodology

作者：Cheng, Chen[1];Guo, Qinghua[1];Ding, Lu[1,2];Raheem, Abdul[1,3];He, Qing[1];Lam, Su Shiung[4,5,6];Yu, Guangsuo[1,7]

机构：[1]East China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]Sukkur IBA Univ, Dept Elect Engn, Sukkur 65200, Pakistan;[4]Univ Malaysia Terengganu, Higher Inst Ctr Excellence HICoE, Inst Trop Aquaculture & Fisheries AKUATROP, Kuala Nerus 21030, Terengganu, Malaysia;[5]Univ Teknol Malaysia UTM, Inst Vehicle Syst & Engn IVeSE, Automot Dev Ctr ADC, Johor Baharu 81310, Johor, Malaysia;[6]Univ Petr & Energy Studies, Sch Engn, Sustainabil Cluster, Dehra Dun 248007, Uttarakhand, India;[7]Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gree, Yinchuan 750021, Ningxia, Peoples R China

年份：2022

卷号：327

外文期刊名：APPLIED ENERGY

收录：;EI(收录号：20224413034634);WOS:【SCI-EXPANDED(收录号:WOS:000877806800003)】；

基金：This work was supported by Program and International Science and Technology Innovation Project between Governments (2021YFE0108900) , National Natural Science Foundation of China (21878093) , Belt & Road Young Scientist Exchange Project Supported by Fund of Shanghai Science and Technology Committee (20230742400) , and Pujiang Talent Program Supported by Fund of Shanghai Science and Technology Committee (20PJ1402800) .

语种：英文

外文关键词：Hydrothermal carbonization; Coconut shell; Upgradation; Optimization

摘要：The utilization of biomass energy is desirable to achieve carbon neutrality in the world. Hydrothermal carbonization of coconut shell was performed using center composite design with an aid of response surface methodology to determine the individual effects and combined effects of parameters on responses. The experi-mental design incorporates two variables and three responses. More specifically, the effects of temperature (180-220 degrees C) and hold time (0-60 min) on hydrochar yield, higher heating value (HHV) and energy yield were investigated. According to the results, hydrochar yield varies monotonically with temperature and hold time. With increasing temperature and hold time, hydrochar yield was dropped gradually. The highest hydrochar yield of 75.67 % was obtained at 180 degrees C-0 min and the lowest hydrochar yield of 63.13 % was achieved at 220 degrees C-60 min. HHV showed opposite trend to hydrochar yield, reaching a maximum value of 29.39 MJ/kg at 220 degrees C-60 min. The change in energy yield was influenced by the variation of hydrochar yield and HHV and does not change monotonically with temperature or time. It reaches the maximum value 90.83 % at 200 degrees C-0 min. Furthermore, to select best operating conditions, a comprehensive evaluation of the experiments was conducted based on the overall desirability. A series of characterization experiments were conducted on selected hydrochar samples. The results of functional group and pore structure changes showed that raw biomass has converted into value-added products with stable structure properties. In conclusion, hydrothermal carbonization as a pre-treatment for upgrading coconut shells is a feasible process and can be used for biofuels production.