流化床甲烷干重整催化剂的性能研究
Study on Performance of Catalysts in Fluidized-Bed Methane Dry Reforming
黄一鑫 1李益政 2张战国 1许光文1
作者信息
- 1. 沈阳化工大学能源与化工产业技术研究院资源化工与材料教育部重点实验室,辽宁沈阳 110142
- 2. 沈阳化工大学能源与化工产业技术研究院资源化工与材料教育部重点实验室,辽宁沈阳 110142;沈阳工业大学环境化学与工程学院,辽宁沈阳 110870
- 折叠
摘要
为开发一种可应用于流化床甲烷干重整反应的抗耐磨性高活性Ni基催化剂,利用氧化铝在高温下晶型转变的特点,以商用球形γ-Al2O3为原料制备比表面积可控、晶型接近α-Al2O3的高耐磨载体,采用浸渍法制备不同低负载量(质量分数0.6％、1.2％、1.8％)的镍基催化剂.采用ICP、XRD、BET和H2-TPR等手段对催化剂进行表征分析.结果表明:1.8％Ni/α-Al2O3在850 ℃、CH4/CO2物质的量比值为1的反应条件下展示了可媲美商业催化剂10.5％Ni/Al2O3的稳定性.
Abstract
In order to develop a Ni catalyst highly resistant towards abrasion and highly active for meth-ane dry-reforming in fluidized bed reactors,by utilizing the characteristics of Al2O3 crystal transforma-tion at high temperatures,the commercially available spherical γ-Al2O3 particles were used as starting material to prepare a highly attrition-resistant support with controllable specific surface area and crystal form close to α-Al2O3.Nickel based catalysts with different low loading levels were prepared by impreg-nation method,characterized using techniques including ICP,XRD,BET and H2-TPR,the results obtained have shown the 1.8％Ni/α-Al2O3 catalyst exhibited stability comparable to commercial cata-lysts(10.5％Ni/Al2O3)under reaction conditions of n(CH4)/n(CO2)=1 at 850℃.
关键词
流化床/甲烷干重整/Ni基催化剂/α-Al2O3Key words
fluidized-bed reactor/methane dry reforming/Ni-based catalyst/α-Al2O3引用本文复制引用
出版年
2024
NETL
NSTL
万方数据