基于锰矿石载氧体的宁东煤化学链燃烧特性  

Chemical Looping Combustion Characteristics of Ningdong Coal Based on the Manganese Ore Oxygen Carrier

作　　者：梁文政 王坤 赵荣洋 苑仕瑞 王翠苹[1,2] LIANG Wenzheng;WANG Kun;ZHAO Rongyang;YUAN Shirui;WANG Cuiping(School of Electrical and Mechanical Engineering,Qingdao University,Qingdao 266071,China;College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]山东科技大学土木工程与建筑学院,山东青岛266590

出　　处：《石油学报（石油加工）》2020年第6期1169-1177,共9页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(51676120);山东省自然科学基金项目(2019GGX103001)资助。

摘　　要：以煅烧后的天然锰矿石为载氧体,基于热化学分析软件(HSC Chemistry 6.0)计算,并与实验相结合,在小型鼓泡流化床上进行了宁东煤气化和燃烧特性的研究。首先将模拟计算与实验结果对比,得到宁东煤与锰矿石载氧体不同掺混比下的燃烧特性;其次,基于模拟数据和实验参数,并结合修正动力学模型,对该实验工况下燃料反应器和空气反应器(FR-AR)反应系统进行热-质平衡计算。结果表明:模拟计算煤燃烧的碳转化率和气相生成物等与实验结果一致,误差小;经1173.15 K高温煅烧的锰矿石载氧体可大幅缩短煤气化时间,并与煤合成气有良好的反应活性;FR-AR系统可以实现自热平衡。The gasification and combustion characteristics of Ningdong coal based on the manganese ore oxygen carrier(OC)were studied by a small bubbling fluidized bed reactor and calculation with the HSC Chemistry 6.0 software.Firstly,the combustion characteristics of Ningdong coal with different ratios manganese ore OC were analyzed by comparing simulation and experimental results.Secondly,the heat and mass balance of the FR-AR(Fuel reactor-air reactor)system was calculated by a modified dynamic model employing simulation results and experimental parameters.The results show that the data error of carbon conversion rate and gaseous products between the simulation and experiments is within a reasonable range.The manganese ore calcinated at 1173.15 K could greatly shorten the time required for coal gasification,and it has good reactivity with coal syngas.The FR-AR experiment system could realize the auto-thermal equilibrium.

关 键 词：化学链燃烧 锰矿石 煤粉气化燃烧 自热平衡 

分 类 号：TK16[动力工程及工程热物理—热能工程]