文献类型：期刊文献

英文题名：Synergy mechanism analysis of petroleum coke and municipal solid waste (MSW)-derived hydrochar co-gasification

作者：Wei, Juntao[1];Guo, Qinghua[1];Ding, Lu[2];Yoshikawa, Kunio[2];Yu, Guangsuo[1]

机构：[1]East China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, Shanghai 200237, Peoples R China;[2]Tokyo Inst Technol, Dept Environm Sci & Technol, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan

年份：2017

卷号：206

起止页码：1354

外文期刊名：APPLIED ENERGY

收录：;EI(收录号：20174104264597);WOS:【SCI-EXPANDED(收录号:WOS:000415768400110)】；

基金：This work was partially supported by the National Natural Science Foundation of China (21676091) and the Fundamental Research Funds for the Central Universities (222201717004).

语种：英文

外文关键词：Petroleum coke; Hydrochar; Waste biomass; Co-gasification; Reactivity; Synergy mechanism

摘要：In this work, the influences of the gasification temperatures (1000-1150 degrees C) and blended ratios (3:1, 1:1, 1:3) on the co-gasification reactivity and synergy of petroleum coke (PC) and municipal solid waste (MSW)-derived hydrochar (HTC) were studied using a thennogravimetric analyzer (TGA). Chemical fractionation analysis (CFA) coupled with an inductively coupled plasma optical emission spectrometer (ICP-OES) was adopted for quantitatively investigating the active alkali/alkaline earth metal (AAEM) transformation (i.e., active AAEM content variation) during co-gasification in order to correlate the synergy mechanism of co-gasification. The results indicated that the co-gasification reactivity of the blended chars was enhanced with increasing gasification temperatures and HTC char proportions. The variations of the synergy behaviour on co-gasification reactivity at different conversions showed continuously enhanced synergistic effect at early co-gasification stage and decreased synergistic effect with further co-gasification. Moreover, higher gasification temperatures and HTC char proportions were more favourable for the continuous enhancement of the synergistic effect as co-gasification conversions increased. The overall synergistic effect on co-gasification reactivity was more obvious at higher HTC char proportions and lower gasification temperatures. The relative transformation ratio (P) was proposed to characterize the active AAEM content variation during co-gasification. P was negative when more active AAEM remained in blended chars, meaning that there was inhibition effect on the active AAEM transformation. It was found that the inhibition effect on the active Ca/K transformation was first enhanced and then weakened whereas the promotion effect on the active Na transformation showed an opposite trend with increasing conversion of co-gasification, which well correlated the synergy behaviour variations during PC-HTC blended char co-gasification. This work not only revealed synergy mechanism of petroleum coke and MSW-based hydrochar co-gasification but also provided reference data for the design and operation of industrial gasification units consuming mixture of petroleum coke and waste biomasses.