文献类型：期刊文献

英文题名：The synergistic effecting mechanisms of biomass pyrolysis, biomass char gasification, and biomass ash on CO2 co-gasification of biomass and high-sulfur petroleum coke

作者：Xiao, Huixia[1];Wang, Yifei[1];Cai, Zhiyang[1];Zhang, Junxian[1];Yu, Guangsuo[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：365

外文期刊名：FUEL

收录：;EI(收录号：20240915643385);WOS:【SCI-EXPANDED(收录号:WOS:001197357600001)】；

基金：This work was financially supported by the National Key R & D Pro- gram of China (2017YFB0602802) .

语种：英文

外文关键词：Biomass waste; High sulfur petroleum coke; Co -gasification; Gasification reactivity; Synergistic effecting mechanisms

摘要：To investigate the synergistic effecting mechanisms of biomass pyrolysis, biomass char gasification, and biomass ash during the co-gasification of biomass and high-sulfur petroleum coke (PC), various biomass waste (B), biomass char (CB) and low-temperature ash of biomass (AB) were blended with PC. Gasification reaction characteristics of B, PC, and their respective mixtures were assessed using a thermogravimetric analyzer. Their gasification reactivity, synergistic effects, and kinetic parameters were comprehensively compared. The total ionic potential (TMP) was defined to quantify the catalytic capacity. The results indicated that the incorporation of B, CB, and AB significantly boosted the gasification reactivity of PC,and the pyrolysis stage (SP) and the gasification stage (SG) of PC:B exhibited antagonistic and synergistic interactions, respectively. The first-order chemical reaction (Q1) proved more suitable for SP, whereas the core-shrinkage model (R2) was more applicable for SG. The mechanisms of B, CB, and AB improving the gasification reactivity of PC were different (B and CB: by lowering active energy). The catalytic capacity was negatively correlated with the TMP. The mechanism of AB catalyzed PC-CO2 gasification varied with the mineral composition. The participation of organic matter in B and CB would promote the formation of Lewis Base Center metal-organic frameworks, thereby improving the catalytic capacity of inorganic components by increasing the pre-exponential factor and the reaction rate constant.