重庆科技大学学报（自然科学版）2026，Vol.28Issue(2)：54-62,9.DOI:10.19406/j.issn.2097-4531.2026.02.006
床层长度与气体流速对高炉熔渣余热驱动甲烷干重整的影响特性研究
Study on the Influence Characteristics of Bed Length and Gas Velocity on Dry Reforming of Methane Driven by Blast Furnace Slag Waste Heat
摘要
Abstract
To address the disconnect between sensible heat recovery and phase transition research in blast furnace slag,a three-dimensional numerical model that couples dry reforming of methane with slag solidification is construc-ted.The results indicate that bed length and gas velocity are critical parameters influencing the dry reforming of methane:when the bed length increases to 125 mm and the gas velocity decreases to 1 L/min,the maximum meth-ane conversion rate reaches 50.6％,with a crystalline content of approximately 21.5％.Further analysis reveals that the temporal matching between the endothermic reaction rate and the exothermic heat release during blast fur-nace slag phase transition determines the tendency for glassy or crystalline phase formation.Rapid cooling facilitates the formation of a glassy phase,while slower cooling promotes crystallization.By regulating reaction conditions,efficient high-temperature waste heat conversion and precise adjustment of blast furnace slag structure can be achieved,providing a theoretical basis for the optimized design and operation of thermochemical recovery units.关键词
甲烷干重整/相变行为/余热回收/数值模拟Key words
dry reforming of methane/phase transformation behavior/waste heat recovery/numerical simulation分类
矿业与冶金引用本文复制引用
李晓鹏,谭煜,周雄,季炫宇,罗炉林,王亿,李鹏瑞,彭鑫..床层长度与气体流速对高炉熔渣余热驱动甲烷干重整的影响特性研究[J].重庆科技大学学报（自然科学版）,2026,28(2):54-62,9.基金项目
国家自然科学基金项目"变物性高温熔融流体离心粒化网状破裂模式多相流换热及调控研究"(52106074) （52106074）
重庆市科学技术计划研究项目"多类有机固废协同热解制富氢合成气与SOFC耦合发电关键技术研究"(CSTB2022NSCQ-LZX0071) （CSTB2022NSCQ-LZX0071）
重庆市教育委员会科学技术研究计划项目"垃圾焚烧飞灰高温熔融无害化处理研究"(KJQN202301531) （KJQN202301531）
重庆科技大学硕士研究生创新计划项目"高温熔渣相变冷却与甲烷干重整反应耦合的热化学储能数值模拟"(YKJCX2420333) （YKJCX2420333）
