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[2]

机构：[1] School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Ningxia University, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20240017200)

语种：英文

外文关键词：Gasification - Gasoline - Iron - Petroleum coke - Pyrolysis - Rate constants - Shells (structures) - Sodium compounds - Sulfur - Temperature

摘要：To investigate the collaborative effects 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, including pistachio nut shells, macadamia shells, chestnut shells, peanut shells, and walnut shells, were abbreviated as PNS, MS, CS, PS and WS, respectively), 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 results indicated that the incorporation of B, CB, and AB significantly boosted the gasification reactivity of PC，and the pyrolysis stage and gasification stage 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 introduction of PC curbed the pyrolysis of B by diminishing the values of the pre-exponential factor(A) and the reaction rate constant (k), while the pyrolysis process of B inhibited the co-gasification of PC:CB by reducing A and k. The inclusion of B and CB augmented the gasification reactivity of PC by lowering active energy (E), and the gasification of CB organic components primarily facilitated the catalytic effect of AB by increasing A and k. The catalyst mechanism of AB was depends on ash composition (high-Ca, Mg, and Cl AB (AMS, ACS, and AWS): elevating A and k; high-K, Na, Fe AB (APNS, APS, and AWS): reducing E). The pyrolysis and gasification of organic components in B suppressed the catalytic effect of the high-calcium AB by diminishing A and k, and amplified the catalytic effect of the high-K, Na, and Fe AB by reducing E. ? 2023, The Authors. All rights reserved.